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 |
|---|---|---|---|---|---|
| Wellington Management Group LLP | 4,345 | $801.8K | 0.00% | +4,345 | New |
| Securian Asset Management, Inc | 4,413 | $814.4K | 0.02% | 00.0% | Unchanged |
| Private Advisor Group, LLC | 4,602 | $849.3K | 0.01% | +4,602 | New |
| Guggenheim Capital LLC | 4,771 | $880.4K | 0.01% | −1,616−25.3% | Reduced |
| American Century Companies Inc | 4,958 | $885.2K | 0.00% | +19+0.4% | Added |
| Raymond James Trust N.A. | 4,804 | $887.0K | 0.03% | +826+20.8% | Added |
| Quadrature Capital Ltd | 4,897 | $904.4K | 0.02% | +4,897 | New |
| Susquehanna International Group, LLP | 5,009 | $924.4K | 0.00% | +1,615+47.6% | Added |
| Storebrand Asset Management AS | 5,102 | $941.5K | 0.00% | −76−1.5% | Reduced |
| Janus Henderson Group PLC | 5,315 | $981.2K | 0.00% | −13−0.2% | Reduced |
| Nissay Asset Management Corp | 5,403 | $997.1K | 0.01% | −142−2.6% | Reduced |
| Panagora Asset Management Inc | 5,504 | $1.02M | 0.01% | −258−4.5% | Reduced |
| North Star Asset Management Inc | 5,555 | $1.03M | 0.06% | −330−5.6% | Reduced |
| Knowledge Leaders Capital, LLC | 5,632 | $1.04M | 1.37% | −95−1.7% | Reduced |
| Ergoteles LLC | 5,749 | $1.06M | 0.04% | +5,749 | New |
| Gotham Asset Management, LLC | 5,782 | $1.07M | 0.03% | +881+18.0% | Added |
| Mariner, LLC | 5,797 | $1.07M | 0.00% | −2,096−26.6% | Reduced |
| 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 |
| Van Eck Associates Corp | 6,059 | $1.12M | 0.00% | +240+4.1% | Added |
| Exchange Traded Concepts, LLC | 6,183 | $1.14M | 0.03% | −1,888−23.4% | Reduced |
| STRS Ohio | 6,298 | $1.16M | 0.01% | +6,298 | New |
| SG Americas Securities, LLC | 6,395 | $1.18M | 0.02% | +5,030+368.5% | Added |
| Allianz Asset Management GmbH | 6,409 | $1.18M | 0.00% | +6,409 | New |
| Linden Thomas Advisory Services, LLC | 6,476 | $1.20M | 0.30% | +433+7.2% | Added |
| Gulf International Bank (UK) Ltd | 6,574 | $1.21M | 0.03% | −2,281−25.8% | Reduced |
| State of Alaska, Department of Revenue | 6,666 | $1.23M | 0.01% | −102−1.5% | Reduced |
| Unigestion Holding SA | 6,966 | $1.24M | 0.07% | −2,024−22.5% | Reduced |
| Vontobel Holding Ltd. | 6,788 | $1.25M | 0.01% | +22+0.3% | Added |
| Brinker Capital Investments, LLC | 6,839 | $1.26M | 0.02% | −219−3.1% | Reduced |
| Orion Portfolio Solutions, LLC | 6,839 | $1.26M | 0.02% | +6,839 | New |
| Janney Montgomery Scott LLC | 7,039 | $1.30M | 0.01% | +151+2.2% | Added |
| Public Employees Retirement Association of Colorado | 7,537 | $1.39M | 0.01% | 00.0% | Unchanged |
| Truist Financial Corp | 7,617 | $1.41M | 0.00% | −939−11.0% | Reduced |
| Spears Abacus Advisors LLC | 7,711 | $1.42M | 0.13% | −1,231−13.8% | Reduced |
| Teachers Retirement System of the State of Kentucky | 7,740 | $1.43M | 0.01% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 7,907 | $1.46M | 0.14% | +7,907 | New |
| Quantinno Capital Management LP | 7,963 | $1.47M | 0.10% | +5,244+192.9% | Added |
| US Bancorp | 7,973 | $1.47M | 0.00% | +350+4.6% | Added |
| Russell Investments Group, Ltd. | 8,109 | $1.50M | 0.00% | −1,299−13.8% | Reduced |
| Utah Retirement Systems | 8,421 | $1.55M | 0.02% | +100+1.2% | Added |
| Fred Alger Management, LLC | 8,476 | $1.56M | 0.01% | +8,476 | New |
| Standard Life Aberdeen plc | 8,526 | $1.57M | 0.00% | +3,958+86.6% | Added |
| IFM Investors Pty Ltd | 8,713 | $1.61M | 0.02% | +178+2.1% | Added |
| Graham Capital Management, L.P. | 8,797 | $1.62M | 0.06% | +8,797 | New |
| New Mexico Educational Retirement Board | 8,800 | $1.62M | 0.08% | +800+10.0% | Added |
| Handelsbanken Fonder AB | 8,830 | $1.63M | 0.01% | 00.0% | Unchanged |
| Inceptionr LLC | 8,864 | $1.64M | 0.52% | +8,864 | New |
| ExodusPoint Capital Management, LP | 9,189 | $1.70M | 0.02% | −27,254−74.8% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 9,280 | $1.71M | 0.01% | −266−2.8% | Reduced |
| Eukles Asset Management | 9,308 | $1.72M | 0.93% | −116−1.2% | Reduced |
| Illinois Municipal Retirement Fund | 9,309 | $1.72M | 0.04% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 9,476 | $1.75M | 0.00% | +20+0.2% | Added |
| Peloton Wealth Strategists | 9,565 | $1.76M | 0.81% | 00.0% | Unchanged |
| Toroso Investments, LLC | 9,830 | $1.81M | 0.06% | +9,830 | New |
| Xponance, Inc. | 10,138 | $1.87M | 0.03% | −30.0% | Reduced |
| Assetmark, Inc | 10,275 | $1.90M | 0.01% | +3,158+44.4% | Added |
| Tredje AP-fonden | 10,588 | $1.95M | 0.03% | +500+5.0% | Added |
| Los Angeles Capital Management LLC | 10,685 | $1.97M | 0.01% | −50.0% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 10,730 | $1.98M | 0.05% | +6,255+139.8% | Added |
| Zacks Investment Management | 10,770 | $1.99M | 0.03% | +10,770 | New |
| Cardinal Capital Management | 10,817 | $2.00M | 0.41% | +101+0.9% | Added |
| JustInvest LLC | 10,975 | $2.03M | 0.07% | +329+3.1% | Added |
| DnB Asset Management AS | 10,990 | $2.03M | 0.01% | +10,990 | New |
| Jane Street Group, LLC | 11,200 | $2.07M | 0.00% | −7,870−41.3% | Reduced |
| Laurus Investment Counsel Inc. | 8,340 | $2.08M | 0.74% | 00.0% | Unchanged |
| Millrace Asset Group, Inc. | 11,313 | $2.09M | 2.44% | +127+1.1% | Added |
| Paradigm Capital Management Inc | 11,353 | $2.10M | 0.14% | −18,400−61.8% | Reduced |
| Creative Planning | 11,373 | $2.10M | 0.00% | −354−3.0% | Reduced |
| Nomura Asset Management Co Ltd | 11,420 | $2.11M | 0.01% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 11,860 | $2.19M | 0.01% | −55,948−82.5% | Reduced |
| State of Michigan Retirement System | 12,196 | $2.25M | 0.01% | −100−0.8% | Reduced |
| Ameritas Investment Partners, Inc. | 12,312 | $2.27M | 0.09% | −117−0.9% | Reduced |
| De Burlo Group Inc | 12,452 | $2.30M | 0.45% | 00.0% | Unchanged |
| Thrivent Financial for Lutherans | 12,763 | $2.35M | 0.01% | −17,685−58.1% | Reduced |
| Louisiana State Employees Retirement System | 12,800 | $2.36M | 0.06% | −100−0.8% | Reduced |
| AQR Capital Management LLC | 13,601 | $2.46M | 0.01% | +13,601 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 13,405 | $2.47M | 0.01% | −470−3.4% | Reduced |
| Toronto Dominion Bank | 13,840 | $2.55M | 0.00% | −9,245−40.0% | Reduced |
| Lockerman Financial Group, Inc. | 14,400 | $2.66M | 7.31% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 14,500 | $2.68M | 0.01% | −34,000−70.1% | Reduced |
| Empower Advisory Group, LLC | 14,512 | $2.68M | 0.01% | +14,512 | New |
| CenterBook Partners LP | 14,510 | $2.68M | 0.38% | +8,584+144.9% | Added |
| Arizona State Retirement System | 14,518 | $2.68M | 0.02% | +392+2.8% | Added |
| Banque Pictet & Cie SA | 15,252 | $2.81M | 0.03% | −2,588−14.5% | Reduced |
| Wells Fargo & Company | 15,279 | $2.82M | 0.00% | −476−3.0% | Reduced |
| Birchview Capital, LP | 15,280 | $2.82M | 2.21% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 15,725 | $2.90M | 0.01% | +500+3.3% | Added |
| Marshall Wace, LLP | 15,932 | $2.94M | 0.01% | −38,690−70.8% | Reduced |
| Korea Investment CORP | 15,954 | $2.94M | 0.01% | −9,431−37.2% | Reduced |
| Royal London Asset Management Ltd | 16,066 | $2.96M | 0.01% | +358+2.3% | Added |
| Ascent Wealth Partners, LLC | 16,126 | $2.98M | 0.60% | +293+1.9% | Added |
| KBC Group NV | 17,245 | $3.18M | 0.01% | +14,211+468.4% | Added |
| Envestnet Asset Management Inc | 17,811 | $3.29M | 0.00% | +2,595+17.1% | Added |
| Brown Advisory Inc | 17,919 | $3.31M | 0.01% | −752−4.0% | Reduced |
| Oregon Public Employees Retirement Fund | 18,088 | $3.34M | 0.04% | −387−2.1% | Reduced |
| Voya Investment Management LLC | 18,851 | $3.48M | 0.00% | −464−2.4% | Reduced |
| Cloverfields Capital Group, LP | 18,858 | $3.48M | 1.04% | +2,806+17.5% | Added |
| Brown Capital Management LLC | 19,283 | $3.56M | 0.05% | −3,481−15.3% | Reduced |
| LPL Financial LLC | 20,005 | $3.69M | 0.00% | −1,062−5.0% | Reduced |