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 2021
Institutional positions in Masimo Corp as of Dec 31, 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
- 520
- +53 vs. Q3 2021
- Shares held
- 46.4M
- +141.5K (+0.3%) vs. Q3 2021
- Total value
- $13.6B
- +$1.05B (+8.4%) vs. Q3 2021
- New holders
- 95
- 182 more added
- Sold out
- 42
- 156 more reduced
8 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Kornitzer Capital Management Inc | 7,720 | $2.26M | 0.03% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 7,781 | $2.28M | 0.01% | −2,814−26.6% | Reduced |
| Tributary Capital Management, LLC | 7,900 | $2.31M | 0.17% | −300−3.7% | Reduced |
| CWM Advisors, LLC | 7,922 | $2.32M | 0.27% | +713+9.9% | Added |
| Birchview Capital, LP | 8,000 | $2.34M | 1.51% | 00.0% | Unchanged |
| Terry L. Blaker | 8,270 | $2.42M | 0.19% | −573−6.5% | Reduced |
| Azzad Asset Management Inc | 8,390 | $2.46M | 0.33% | −38−0.5% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 8,422 | $2.47M | 0.05% | +55+0.7% | Added |
| American Century Companies Inc | 8,605 | $2.52M | 0.00% | +660+8.3% | Added |
| Alberta Investment Management Corp | 8,700 | $2.55M | 0.02% | 00.0% | Unchanged |
| Creative Planning | 8,729 | $2.56M | 0.00% | +92+1.1% | Added |
| Teachers Retirement System of the State of Kentucky | 8,747 | $2.56M | 0.02% | +1,421+19.4% | Added |
| Capital Impact Advisors, LLC | 8,814 | $2.58M | 1.78% | 00.0% | Unchanged |
| Gulf International Bank (UK) Ltd | 8,855 | $2.59M | 0.04% | −1,600−15.3% | Reduced |
| Cardinal Capital Management | 8,947 | $2.62M | 0.52% | −16−0.2% | Reduced |
| Mackenzie Financial Corp | 8,966 | $2.63M | 0.00% | −5,894−39.7% | Reduced |
| Utah Retirement Systems | 9,021 | $2.64M | 0.03% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 9,118 | $2.67M | 0.01% | −164−1.8% | Reduced |
| HighTower Trust Services, LTA | 9,398 | $2.75M | 0.27% | +9,398 | New |
| Xponance, Inc. | 9,445 | $2.77M | 0.04% | +42+0.4% | Added |
| Storebrand Asset Management AS | 9,450 | $2.77M | 0.01% | −583−5.8% | Reduced |
| AlphaCrest Capital Management LLC | 9,606 | $2.81M | 0.10% | +5,813+153.3% | Added |
| The PNC Financial Services Group, Inc. | 9,988 | $2.92M | 0.00% | +798+8.7% | Added |
| Integral Health Asset Management, LLC | 10,000 | $2.93M | 0.82% | +10,000 | New |
| Banque Pictet & Cie SA | 10,032 | $2.94M | 0.02% | +10,032 | New |
| Janus Henderson Group PLC | 10,122 | $2.96M | 0.00% | −1,028−9.2% | Reduced |
| Eukles Asset Management | 10,335 | $3.03M | 1.46% | +134+1.3% | Added |
| Susquehanna Fundamental Investments, LLC | 10,485 | $3.07M | 0.08% | 00.0% | Unchanged |
| New Mexico Educational Retirement Board | 10,500 | $3.07M | 0.10% | 00.0% | Unchanged |
| Exchange Traded Concepts, LLC | 10,672 | $3.13M | 0.06% | −1,848−14.8% | Reduced |
| Metropolitan Life Insurance Co | 10,765 | $3.15M | 0.04% | −182−1.7% | Reduced |
| Allstate Corp | 10,786 | $3.16M | 0.06% | +9,890+1,103.8% | Added |
| Teacher Retirement System of Texas | 10,961 | $3.21M | 0.01% | +2,500+29.5% | Added |
| Candriam Luxembourg S.C.A. | 11,341 | $3.32M | 0.02% | −9,749−46.2% | Reduced |
| USS Investment Management Ltd | 11,595 | $3.39M | 0.03% | 00.0% | Unchanged |
| Andra AP-fonden | 11,700 | $3.43M | 0.07% | +800+7.3% | Added |
| Franklin Resources Inc | 11,861 | $3.47M | 0.00% | +5,167+77.2% | Added |
| Natixis | 11,910 | $3.49M | 0.01% | +8,910+297.0% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 12,315 | $3.61M | 0.03% | +515+4.4% | Added |
| Prudential Financial Inc | 12,722 | $3.73M | 0.00% | −8,374−39.7% | Reduced |
| State of Michigan Retirement System | 12,866 | $3.77M | 0.02% | +200+1.6% | Added |
| Cubist Systematic Strategies, LLC | 12,934 | $3.79M | 0.04% | +12,934 | New |
| Brookfield Asset Management Inc. | 13,004 | $3.81M | 0.01% | −6,350−32.8% | Reduced |
| Advisors Asset Management, Inc. | 13,028 | $3.81M | 0.05% | −1,428−9.9% | Reduced |
| Louisiana State Employees Retirement System | 13,100 | $3.83M | 0.08% | +200+1.6% | Added |
| Arcadia Investment Management Corp | 13,210 | $3.87M | 0.65% | +483+3.8% | Added |
| De Burlo Group Inc | 13,352 | $3.91M | 0.57% | −400−2.9% | Reduced |
| Employees Retirement System of Texas | 13,400 | $3.92M | 0.04% | 00.0% | Unchanged |
| Vontobel Holding Ltd. | 13,207 | $3.92M | 0.03% | −1,471−10.0% | Reduced |
| Polar Capital Holdings Plc | 13,544 | $3.96M | 0.02% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 13,584 | $3.98M | 0.13% | +167+1.2% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 13,421 | $3.99M | 0.02% | −50,003−78.8% | Reduced |
| Security Asset Management | 13,641 | $3.99M | 1.55% | −89−0.6% | Reduced |
| Lisanti Capital Growth, LLC | 14,190 | $4.16M | 0.60% | +7,090+99.9% | Added |
| Arizona State Retirement System | 14,241 | $4.17M | 0.03% | −422−2.9% | Reduced |
| Royal London Asset Management Ltd | 14,445 | $4.23M | 0.02% | +336+2.4% | Added |
| Ascent Wealth Partners, LLC | 14,645 | $4.29M | 0.76% | +218+1.5% | Added |
| D. E. Shaw & Co., Inc. | 14,981 | $4.39M | 0.01% | +13,715+1,083.3% | Added |
| Unigestion Holding SA | 15,032 | $4.40M | 0.18% | +857+6.0% | Added |
| Personal Capital Advisors Corp | 15,087 | $4.42M | 0.02% | −2,068−12.1% | Reduced |
| Lockerman Financial Group, Inc. | 15,900 | $4.66M | 12.18% | +15,900 | New |
| Baird Financial Group, Inc. | 16,045 | $4.70M | 0.01% | +4,214+35.6% | Added |
| Oregon Public Employees Retirement Fund | 16,399 | $4.80M | 0.05% | −500−3.0% | Reduced |
| Fred Alger Management, LLC | 16,572 | $4.85M | 0.01% | 00.0% | Unchanged |
| South Dakota Investment Council | 16,655 | $4.88M | 0.08% | +7,300+78.0% | Added |
| Comerica Bank | 22,963 | $4.89M | 0.04% | −308−1.3% | Reduced |
| Autus Asset Management, LLC | 16,763 | $4.91M | 0.49% | +31+0.2% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 16,844 | $4.93M | 0.05% | +110+0.7% | Added |
| Weiss Multi-Strategy Advisers LLC | 17,209 | $5.04M | 0.12% | +17,209 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 18,353 | $5.23M | 0.02% | −1,890−9.3% | Reduced |
| Federated Hermes, Inc. | 17,989 | $5.27M | 0.01% | −308−1.7% | Reduced |
| Pictet Asset Management SA | 18,110 | $5.30M | 0.01% | +190+1.1% | Added |
| Treasurer of the State of North Carolina | 18,841 | $5.52M | 0.03% | +70+0.4% | Added |
| Cinctive Capital Management LP | 19,144 | $5.61M | 0.26% | +19,144 | New |
| Russell Investments Group, Ltd. | 19,602 | $5.74M | 0.01% | +959+5.1% | Added |
| McKinley Capital Management LLC /Delaware | 21,330 | $6.25M | 0.56% | 00.0% | Unchanged |
| North Star Asset Management Inc | 21,436 | $6.28M | 0.32% | +425+2.0% | Added |
| PDT Partners, LLC | 21,603 | $6.33M | 0.48% | +3,603+20.0% | Added |
| Victory Capital Management Inc | 22,355 | $6.54M | 0.01% | −219,275−90.7% | Reduced |
| EFG Asset Management (North America) Corp. | 22,639 | $6.62M | 0.86% | +22,639 | New |
| Ensign Peak Advisors, Inc | 23,550 | $6.89M | 0.01% | −21,121−47.3% | Reduced |
| Carmignac Gestion | 24,146 | $7.10M | 0.10% | +2,365+10.9% | Added |
| Railway Pension Investments Ltd | 24,500 | $7.17M | 0.05% | 00.0% | Unchanged |
| MetLife Investment Management | 24,621 | $7.21M | 0.06% | +287+1.2% | Added |
| Ravenstone Capital Management Inc. | 25,975 | $7.60M | 4.76% | +1,675+6.9% | Added |
| Yousif Capital Management, LLC | 26,188 | $7.67M | 0.08% | +26,188 | New |
| State of Wisconsin Investment Board | 26,671 | $7.81M | 0.02% | −431−1.6% | Reduced |
| Assenagon Asset Management S.A. | 27,275 | $7.99M | 0.03% | 00.0% | Unchanged |
| Aviva PLC | 27,380 | $8.02M | 0.03% | +5,870+27.3% | Added |
| Price T Rowe Associates Inc | 28,185 | $8.25M | 0.00% | +232+0.8% | Added |
| Caisse de Depot Et Placement du Quebec | 28,200 | $8.26M | 0.02% | +4,248+17.7% | Added |
| Nomura Asset Management Co Ltd | 28,585 | $8.37M | 0.04% | −3,725−11.5% | Reduced |
| State of New Jersey Common Pension Fund D | 29,848 | $8.74M | 0.03% | +201+0.7% | Added |
| LPL Financial LLC | 30,414 | $8.90M | 0.01% | +1,408+4.9% | Added |
| Shell Asset Management Co | 32,059 | $9.39M | 0.19% | −1,880−5.5% | Reduced |
| Voya Investment Management LLC | 33,733 | $9.88M | 0.02% | +5,677+20.2% | Added |
| Gabelli Funds LLC | 34,000 | $9.96M | 0.06% | −1,000−2.9% | Reduced |
| Brown Capital Management LLC | 34,066 | $9.97M | 0.08% | −12,836−27.4% | Reduced |
| Qube Research & Technologies Ltd | 34,085 | $9.98M | 0.08% | +34,085 | New |
| State of Alaska, Department of Revenue | 34,268 | $10.0M | 0.10% | +2,431+7.6% | Added |