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 |
|---|---|---|---|---|---|
| Occudo Quantitative Strategies LP | 21,694 | $3.16M | 0.26% | +20,739+2,171.6% | Added |
| ExodusPoint Capital Management, LP | 21,837 | $3.18M | 0.05% | +21,837 | New |
| Comerica Bank | 23,749 | $3.23M | 0.02% | +786+3.4% | Added |
| Twin Tree Management, LP | 22,343 | $3.25M | 0.06% | +22,343 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 22,412 | $3.26M | 0.02% | +22,412 | New |
| Carmignac Gestion | 23,198 | $3.45M | 0.06% | −948−3.9% | Reduced |
| Putnam Investments LLC | 25,304 | $3.68M | 0.01% | +25,304 | New |
| LPL Financial LLC | 25,861 | $3.76M | 0.00% | −4,553−15.0% | Reduced |
| Illinois Municipal Retirement Fund | 26,334 | $3.83M | 0.11% | −12,676−32.5% | Reduced |
| HRT Financial LP | 26,423 | $3.85M | 0.03% | +26,423 | New |
| State of Alaska, Department of Revenue | 26,507 | $3.86M | 0.04% | −7,761−22.6% | Reduced |
| Public Employees Retirement System of Ohio | 26,678 | $3.88M | 0.01% | −10,440−28.1% | Reduced |
| Clearline Capital LP | 27,036 | $3.94M | 0.53% | +27,036 | New |
| Yousif Capital Management, LLC | 27,264 | $3.97M | 0.04% | +1,076+4.1% | Added |
| Russell Investments Group, Ltd. | 26,699 | $4.02M | 0.01% | +7,097+36.2% | Added |
| First Trust Advisors LP | 29,338 | $4.27M | 0.00% | −44,273−60.1% | Reduced |
| Treasurer of the State of North Carolina | 29,561 | $4.30M | 0.02% | +10,720+56.9% | Added |
| Envestnet Asset Management Inc | 30,253 | $4.40M | 0.00% | −7,312−19.5% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 31,500 | $4.58M | 0.02% | +31,500 | New |
| Jump Financial, LLC | 31,723 | $4.62M | 0.20% | +31,723 | New |
| Bell Asset Management Ltd | 32,225 | $4.69M | 0.81% | +32,225 | New |
| Barclays PLC | 32,468 | $4.72M | 0.00% | −16,822−34.1% | Reduced |
| Voya Investment Management LLC | 33,097 | $4.82M | 0.01% | −636−1.9% | Reduced |
| Gabelli Funds LLC | 33,700 | $4.91M | 0.03% | −300−0.9% | Reduced |
| MetLife Investment Management | 34,463 | $5.02M | 0.03% | +9,842+40.0% | Added |
| Banco Santander, S.A. | 34,733 | $5.05M | 0.05% | −927−2.6% | Reduced |
| Brookfield Asset Management Inc. | 35,498 | $5.17M | 0.02% | +22,494+173.0% | Added |
| Holocene Advisors, LP | 35,781 | $5.21M | 0.03% | +35,781 | New |
| State of New Jersey Common Pension Fund D | 35,920 | $5.23M | 0.02% | +6,072+20.3% | Added |
| Mackenzie Financial Corp | 36,011 | $5.24M | 0.01% | +27,045+301.6% | Added |
| Texas Permanent School Fund | 36,018 | $5.24M | 0.07% | −1,357−3.6% | Reduced |
| Algert Global LLC | 36,837 | $5.36M | 0.35% | +31,847+638.2% | Added |
| Brown Capital Management LLC | 37,083 | $5.40M | 0.05% | +3,017+8.9% | Added |
| Quantbot Technologies LP | 37,776 | $5.50M | 0.48% | +34,128+935.5% | Added |
| Amalgamated Bank | 38,093 | $5.54M | 0.04% | −460−1.2% | Reduced |
| Amalgamated Financial Corp. | 38,093 | $5.54M | 0.04% | +38,093 | New |
| Engineers Gate Manager LP | 38,415 | $5.59M | 0.22% | +38,415 | New |
| Prudential Financial Inc | 38,548 | $5.61M | 0.01% | +25,826+203.0% | Added |
| SEI Investments Co | 39,132 | $5.66M | 0.01% | −3,387−8.0% | Reduced |
| State of Wisconsin Investment Board | 39,233 | $5.71M | 0.01% | +12,562+47.1% | Added |
| NS Partners Ltd | 39,995 | $5.82M | 0.31% | −987−2.4% | Reduced |
| Paradigm Capital Management Inc | 41,453 | $6.03M | 0.33% | +3,000+7.8% | Added |
| Trexquant Investment LP | 41,523 | $6.04M | 0.28% | +37,799+1,015.0% | Added |
| DF Dent & Co Inc | 41,681 | $6.07M | 0.07% | −262,211−86.3% | Reduced |
| Brewin Dolphin Wealth Management Ltd | 41,826 | $6.09M | 0.68% | +409+1.0% | Added |
| State of Tennessee, Treasury Department | 42,823 | $6.23M | 0.02% | 00.0% | Unchanged |
| Handelsinvest Investeringsforvaltning | 45,000 | $6.55M | 0.79% | +5,000+12.5% | Added |
| PDT Partners, LLC | 45,097 | $6.56M | 0.56% | +23,494+108.8% | Added |
| Capital Fund Management S.A. | 45,199 | $6.58M | 0.18% | +45,199 | New |
| Mutual of America Capital Management LLC | 46,326 | $6.74M | 0.07% | +897+2.0% | Added |
| Thrivent Financial for Lutherans | 48,540 | $7.07M | 0.01% | +10,120+26.3% | Added |
| Allspring Global Investments Holdings, LLC | 49,088 | $7.14M | 0.01% | +46,876+2,119.2% | Added |
| HSBC Holdings PLC | 48,698 | $7.17M | 0.01% | +13,671+39.0% | Added |
| Bryn Mawr Trust Co | 51,941 | $7.56M | 0.30% | −1,345−2.5% | Reduced |
| E. Ohman J:or Asset Management AB | 51,987 | $7.57M | 0.25% | +49,187+1,756.7% | Added |
| Eaton Vance Management | 53,030 | $7.72M | 0.01% | +11,114+26.5% | Added |
| Shell Asset Management Co | 54,404 | $7.92M | 0.19% | +22,345+69.7% | Added |
| Logan Capital Management Inc | 54,434 | $7.92M | 0.38% | −749−1.4% | Reduced |
| 2Xideas AG | 54,587 | $7.95M | 0.56% | +1,005+1.9% | Added |
| Schonfeld Strategic Advisors LLC | 57,166 | $8.32M | 0.09% | +57,166 | New |
| Wells Fargo & Company | 57,305 | $8.34M | 0.00% | −15,527−21.3% | Reduced |
| Balyasny Asset Management LLC | 57,914 | $8.43M | 0.04% | +57,914 | New |
| Tobam | 57,930 | $8.43M | 0.42% | +57,756+33,193.1% | Added |
| Great West Life Assurance Co | 59,540 | $9.05M | 0.02% | +11,543+24.0% | Added |
| Asset Management One Co.,Ltd. | 62,574 | $9.23M | 0.04% | +5,489+9.6% | Added |
| State Board of Administration of Florida Retirement System | 64,909 | $9.45M | 0.02% | −681−1.0% | Reduced |
| New York State Teachers Retirement System | 66,852 | $9.73M | 0.02% | −374−0.6% | Reduced |
| New York State Common Retirement Fund | 72,256 | $10.5M | 0.01% | −4,334−5.7% | Reduced |
| Qube Research & Technologies Ltd | 73,045 | $10.6M | 0.10% | +38,960+114.3% | Added |
| Ameriprise Financial Inc | 76,702 | $11.1M | 0.00% | −323,623−80.8% | Reduced |
| Bridgewater Associates, LP | 77,097 | $11.2M | 0.05% | +20,261+35.6% | Added |
| Bank of America Corp | 78,403 | $11.4M | 0.00% | −72,712−48.1% | Reduced |
| Alliancebernstein L.P. | 79,059 | $11.5M | 0.00% | −1,217−1.5% | Reduced |
| Susquehanna Fundamental Investments, LLC | 80,073 | $11.7M | 0.23% | +69,588+663.7% | Added |
| Gamco Investors, Inc. Et Al | 85,000 | $12.4M | 0.11% | −2,500−2.9% | Reduced |
| California State Teachers Retirement System | 85,140 | $12.4M | 0.02% | −5,069−5.6% | Reduced |
| Forte Capital LLC | 42,857 | $12.5M | 1.59% | −230−0.5% | Reduced |
| American International Group, Inc. | 86,366 | $12.6M | 0.07% | +159+0.2% | Added |
| British Columbia Investment Management Corp | 95,098 | $13.8M | 0.09% | +13,912+17.1% | Added |
| Toronto Dominion Bank | 96,235 | $14.0M | 0.02% | +20,920+27.8% | Added |
| California Public Employees Retirement System | 96,873 | $14.1M | 0.01% | −297,163−75.4% | Reduced |
| Price T Rowe Associates Inc | 99,706 | $14.5M | 0.00% | +71,521+253.8% | Added |
| Baillie Gifford & Co | 100,174 | $14.6M | 0.01% | +10,245+11.4% | Added |
| Bank of Montreal | 93,176 | $14.6M | 0.01% | +33,581+56.3% | Added |
| Amundi | 102,997 | $15.2M | 0.01% | −1,069−1.0% | Reduced |
| ThornTree Capital Partners LP | 115,949 | $16.9M | 3.70% | +115,949 | New |
| Schroder Investment Management Group | 112,064 | $17.4M | 0.02% | −95,002−45.9% | Reduced |
| Wellington Management Group LLP | 129,949 | $18.9M | 0.00% | −601,988−82.2% | Reduced |
| Montanaro Asset Management Ltd | 130,000 | $18.9M | 2.34% | +7,850+6.4% | Added |
| Parametric Portfolio Associates LLC | 130,668 | $19.0M | 0.01% | +29,929+29.7% | Added |
| Squarepoint Ops LLC | 131,305 | $19.1M | 0.14% | +79,429+153.1% | Added |
| Panagora Asset Management Inc | 132,172 | $19.2M | 0.10% | +130,060+6,158.1% | Added |
| Rhumbline Advisers | 135,981 | $19.8M | 0.03% | +879+0.7% | Added |
| Nuveen Asset Management, LLC | 125,342 | $19.8M | 0.01% | −33,590−21.1% | Reduced |
| Invesco Ltd. | 140,391 | $20.4M | 0.01% | −1,167,215−89.3% | Reduced |
| Voloridge Investment Management, LLC | 141,888 | $20.6M | 0.12% | +141,888 | New |
| Rockefeller Capital Management L.P. | 145,272 | $21.1M | 0.10% | +829+0.6% | Added |
| Citadel Advisors LLC | 146,455 | $21.3M | 0.02% | +89,531+157.3% | Added |
| BNP Paribas Arbitrage, SA | 149,187 | $21.7M | 0.04% | +66,208+79.8% | Added |
| Scout Investments, Inc. | 154,993 | $22.6M | 0.36% | +86,036+124.8% | Added |