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 |
|---|---|---|---|---|---|
| Mutual of America Capital Management LLC | 45,429 | $13.3M | 0.13% | +763+1.7% | Added |
| Man Group plc | 43,962 | $12.9M | 0.04% | +1,833+4.4% | Added |
| Forte Capital LLC | 43,087 | $12.6M | 1.59% | +1,588+3.8% | Added |
| State of Tennessee, Treasury Department | 42,823 | $12.5M | 0.05% | +4,000+10.3% | Added |
| SEI Investments Co | 42,519 | $12.4M | 0.02% | +3,437+8.8% | Added |
| Royal Bank of Canada | 42,345 | $12.4M | 0.00% | −2,809−6.2% | Reduced |
| Eaton Vance Management | 41,916 | $12.3M | 0.01% | +70+0.2% | Added |
| Brewin Dolphin Wealth Management Ltd | 41,417 | $12.1M | 1.31% | +1,637+4.1% | Added |
| NS Partners Ltd | 40,982 | $12.0M | 0.56% | +6,925+20.3% | Added |
| Handelsinvest Investeringsforvaltning | 40,000 | $11.7M | 1.19% | +4,000+11.1% | Added |
| Illinois Municipal Retirement Fund | 39,010 | $11.4M | 0.32% | +15,727+67.5% | Added |
| Amalgamated Bank | 38,553 | $11.3M | 0.08% | +2,545+7.1% | Added |
| Paradigm Capital Management Inc | 38,453 | $11.3M | 0.50% | +1,300+3.5% | Added |
| Thrivent Financial for Lutherans | 38,420 | $11.2M | 0.02% | −2,956−7.1% | Reduced |
| Envestnet Asset Management Inc | 37,565 | $11.0M | 0.01% | +2,487+7.1% | Added |
| Texas Permanent School Fund | 37,375 | $10.9M | 0.13% | −94−0.3% | Reduced |
| Public Employees Retirement System of Ohio | 37,118 | $10.9M | 0.04% | −959−2.5% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 36,132 | $10.6M | 0.14% | +5,500+18.0% | Added |
| Banco Santander, S.A. | 35,660 | $10.4M | 0.06% | +1,927+5.7% | Added |
| HSBC Holdings PLC | 35,027 | $10.3M | 0.01% | +6,748+23.9% | Added |
| State of Alaska, Department of Revenue | 34,268 | $10.0M | 0.10% | +2,431+7.6% | Added |
| Qube Research & Technologies Ltd | 34,085 | $9.98M | 0.08% | +34,085 | New |
| Brown Capital Management LLC | 34,066 | $9.97M | 0.08% | −12,836−27.4% | Reduced |
| Gabelli Funds LLC | 34,000 | $9.96M | 0.06% | −1,000−2.9% | Reduced |
| Voya Investment Management LLC | 33,733 | $9.88M | 0.02% | +5,677+20.2% | Added |
| Shell Asset Management Co | 32,059 | $9.39M | 0.19% | −1,880−5.5% | Reduced |
| LPL Financial LLC | 30,414 | $8.90M | 0.01% | +1,408+4.9% | Added |
| State of New Jersey Common Pension Fund D | 29,848 | $8.74M | 0.03% | +201+0.7% | Added |
| Nomura Asset Management Co Ltd | 28,585 | $8.37M | 0.04% | −3,725−11.5% | Reduced |
| Caisse de Depot Et Placement du Quebec | 28,200 | $8.26M | 0.02% | +4,248+17.7% | Added |
| Price T Rowe Associates Inc | 28,185 | $8.25M | 0.00% | +232+0.8% | Added |
| Aviva PLC | 27,380 | $8.02M | 0.03% | +5,870+27.3% | Added |
| Assenagon Asset Management S.A. | 27,275 | $7.99M | 0.03% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 26,671 | $7.81M | 0.02% | −431−1.6% | Reduced |
| Yousif Capital Management, LLC | 26,188 | $7.67M | 0.08% | +26,188 | New |
| Ravenstone Capital Management Inc. | 25,975 | $7.60M | 4.76% | +1,675+6.9% | Added |
| MetLife Investment Management | 24,621 | $7.21M | 0.06% | +287+1.2% | Added |
| Railway Pension Investments Ltd | 24,500 | $7.17M | 0.05% | 00.0% | Unchanged |
| Carmignac Gestion | 24,146 | $7.10M | 0.10% | +2,365+10.9% | Added |
| Ensign Peak Advisors, Inc | 23,550 | $6.89M | 0.01% | −21,121−47.3% | Reduced |
| EFG Asset Management (North America) Corp. | 22,639 | $6.62M | 0.86% | +22,639 | New |
| Victory Capital Management Inc | 22,355 | $6.54M | 0.01% | −219,275−90.7% | Reduced |
| PDT Partners, LLC | 21,603 | $6.33M | 0.48% | +3,603+20.0% | Added |
| North Star Asset Management Inc | 21,436 | $6.28M | 0.32% | +425+2.0% | Added |
| McKinley Capital Management LLC /Delaware | 21,330 | $6.25M | 0.56% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 19,602 | $5.74M | 0.01% | +959+5.1% | Added |
| Cinctive Capital Management LP | 19,144 | $5.61M | 0.26% | +19,144 | New |
| Treasurer of the State of North Carolina | 18,841 | $5.52M | 0.03% | +70+0.4% | Added |
| Pictet Asset Management SA | 18,110 | $5.30M | 0.01% | +190+1.1% | Added |
| Federated Hermes, Inc. | 17,989 | $5.27M | 0.01% | −308−1.7% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 18,353 | $5.23M | 0.02% | −1,890−9.3% | Reduced |
| Weiss Multi-Strategy Advisers LLC | 17,209 | $5.04M | 0.12% | +17,209 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 16,844 | $4.93M | 0.05% | +110+0.7% | Added |
| Autus Asset Management, LLC | 16,763 | $4.91M | 0.49% | +31+0.2% | Added |
| Comerica Bank | 22,963 | $4.89M | 0.04% | −308−1.3% | Reduced |
| South Dakota Investment Council | 16,655 | $4.88M | 0.08% | +7,300+78.0% | Added |
| Fred Alger Management, LLC | 16,572 | $4.85M | 0.01% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 16,399 | $4.80M | 0.05% | −500−3.0% | Reduced |
| Baird Financial Group, Inc. | 16,045 | $4.70M | 0.01% | +4,214+35.6% | Added |
| Lockerman Financial Group, Inc. | 15,900 | $4.66M | 12.18% | +15,900 | New |
| Personal Capital Advisors Corp | 15,087 | $4.42M | 0.02% | −2,068−12.1% | Reduced |
| Unigestion Holding SA | 15,032 | $4.40M | 0.18% | +857+6.0% | Added |
| D. E. Shaw & Co., Inc. | 14,981 | $4.39M | 0.01% | +13,715+1,083.3% | Added |
| Ascent Wealth Partners, LLC | 14,645 | $4.29M | 0.76% | +218+1.5% | Added |
| Royal London Asset Management Ltd | 14,445 | $4.23M | 0.02% | +336+2.4% | Added |
| Arizona State Retirement System | 14,241 | $4.17M | 0.03% | −422−2.9% | Reduced |
| Lisanti Capital Growth, LLC | 14,190 | $4.16M | 0.60% | +7,090+99.9% | Added |
| Security Asset Management | 13,641 | $3.99M | 1.55% | −89−0.6% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 13,421 | $3.99M | 0.02% | −50,003−78.8% | Reduced |
| Ameritas Investment Partners, Inc. | 13,584 | $3.98M | 0.13% | +167+1.2% | Added |
| Polar Capital Holdings Plc | 13,544 | $3.96M | 0.02% | 00.0% | Unchanged |
| Vontobel Holding Ltd. | 13,207 | $3.92M | 0.03% | −1,471−10.0% | Reduced |
| Employees Retirement System of Texas | 13,400 | $3.92M | 0.04% | 00.0% | Unchanged |
| De Burlo Group Inc | 13,352 | $3.91M | 0.57% | −400−2.9% | Reduced |
| Arcadia Investment Management Corp | 13,210 | $3.87M | 0.65% | +483+3.8% | Added |
| Louisiana State Employees Retirement System | 13,100 | $3.83M | 0.08% | +200+1.6% | Added |
| Advisors Asset Management, Inc. | 13,028 | $3.81M | 0.05% | −1,428−9.9% | Reduced |
| Brookfield Asset Management Inc. | 13,004 | $3.81M | 0.01% | −6,350−32.8% | Reduced |
| Cubist Systematic Strategies, LLC | 12,934 | $3.79M | 0.04% | +12,934 | New |
| State of Michigan Retirement System | 12,866 | $3.77M | 0.02% | +200+1.6% | Added |
| Prudential Financial Inc | 12,722 | $3.73M | 0.00% | −8,374−39.7% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 12,315 | $3.61M | 0.03% | +515+4.4% | Added |
| Natixis | 11,910 | $3.49M | 0.01% | +8,910+297.0% | Added |
| Franklin Resources Inc | 11,861 | $3.47M | 0.00% | +5,167+77.2% | Added |
| Andra AP-fonden | 11,700 | $3.43M | 0.07% | +800+7.3% | Added |
| USS Investment Management Ltd | 11,595 | $3.39M | 0.03% | 00.0% | Unchanged |
| Candriam Luxembourg S.C.A. | 11,341 | $3.32M | 0.02% | −9,749−46.2% | Reduced |
| Teacher Retirement System of Texas | 10,961 | $3.21M | 0.01% | +2,500+29.5% | Added |
| Allstate Corp | 10,786 | $3.16M | 0.06% | +9,890+1,103.8% | Added |
| Metropolitan Life Insurance Co | 10,765 | $3.15M | 0.04% | −182−1.7% | Reduced |
| Exchange Traded Concepts, LLC | 10,672 | $3.13M | 0.06% | −1,848−14.8% | Reduced |
| New Mexico Educational Retirement Board | 10,500 | $3.07M | 0.10% | 00.0% | Unchanged |
| Susquehanna Fundamental Investments, LLC | 10,485 | $3.07M | 0.08% | 00.0% | Unchanged |
| Eukles Asset Management | 10,335 | $3.03M | 1.46% | +134+1.3% | Added |
| Janus Henderson Group PLC | 10,122 | $2.96M | 0.00% | −1,028−9.2% | Reduced |
| Banque Pictet & Cie SA | 10,032 | $2.94M | 0.02% | +10,032 | New |
| Integral Health Asset Management, LLC | 10,000 | $2.93M | 0.82% | +10,000 | New |
| The PNC Financial Services Group, Inc. | 9,988 | $2.92M | 0.00% | +798+8.7% | Added |
| AlphaCrest Capital Management LLC | 9,606 | $2.81M | 0.10% | +5,813+153.3% | Added |
| Storebrand Asset Management AS | 9,450 | $2.77M | 0.01% | −583−5.8% | Reduced |