Masimo Corp
MASIDelisted- Industry
- Electromedical & Electrotherapeutic Apparatus
- SEC CIK
- 0000937556
Masimo Corp was delisted in 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, Q2 2023
Institutional positions in Masimo Corp as of Jun 30, 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
- 415
- −13 vs. Q1 2023
- Shares held
- 46.0M
- +958.6K (+2.1%) vs. Q1 2023
- Total value
- $7.56B
- −$738.3M (−8.9%) vs. Q1 2023
- New holders
- 45
- 114 more added
- Sold out
- 58
- 171 more reduced
Compare with Q1 2023: 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 | $7.32B |
| Q3 2025 | 358 | $8.31B |
| Q2 2025 | 379 | $9.69B |
| Q1 2025 | 393 | $9.03B |
| Q4 2024 | 366 | $8.51B |
| Q3 2024 | 362 | $6.74B |
| Q2 2024 | 352 | $6.26B |
| Q1 2024 | 339 | $7.79B |
| Q4 2023 | 342 | $6.00B |
| Q3 2023 | 357 | $4.19B |
| Q2 2023 | 415 | $7.57B |
| Q1 2023 | 428 | $9.43B |
| Q4 2022 | 405 | $6.58B |
| Q3 2022 | 419 | $6.55B |
| Q2 2022 | 417 | $5.81B |
| Q1 2022 | 457 | $6.69B |
| Q4 2021 | 520 | $13.6B |
| Q3 2021 | 475 | $12.5B |
| Q2 2021 | 459 | $11.1B |
| Q1 2021 | 481 | $10.3B |
Institutions, Q2 2023
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 7,157,277 | $1.18B | 0.10% | +1,072,321+17.6% | Added |
| BlackRock Inc. | 6,120,123 | $1.01B | 0.03% | +178,267+3.0% | Added |
| Vanguard Group Inc | 4,855,269 | $798.9M | 0.02% | +182,918+3.9% | Added |
| Politan Capital Management LP | 4,713,518 | $775.6M | 45.96% | −26,445−0.6% | Reduced |
| State Street Corp | 1,664,786 | $273.9M | 0.01% | −46,809−2.7% | Reduced |
| Capital Research Global Investors | 1,652,524 | $271.9M | 0.07% | +974+0.1% | Added |
| RTW Investments, LP | 1,501,493 | $247.1M | 4.70% | 00.0% | Unchanged |
| Westfield Capital Management Co LP | 953,799 | $156.9M | 1.00% | +953,799 | New |
| Liontrust Investment Partners LLP | 920,406 | $151.5M | 2.18% | −31,794−3.3% | Reduced |
| Geode Capital Management, LLC | 758,606 | $124.6M | 0.01% | +32,588+4.5% | Added |
| Fundsmith LLPSuperinvestorFundsmith | 730,377 | $120.2M | 0.50% | −33,942−4.4% | Reduced |
| Schroder Investment Management Group | 643,055 | $105.8M | 0.15% | −55,933−8.0% | Reduced |
| T. Rowe Price Investment Management, Inc. | 518,008 | $85.2M | 0.06% | −18,147−3.4% | Reduced |
| Martin Currie Ltd | 502,063 | $82.6M | 2.78% | +1,568+0.3% | Added |
| Bank of New York Mellon Corp | 497,171 | $81.8M | 0.02% | −26,289−5.0% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 490,107 | $80.6M | 0.06% | −2,839−0.6% | Reduced |
| Norges Bank | 437,000 | $71.9M | 0.01% | +65,790+17.7% | Added |
| Northern Trust Corp | 417,544 | $68.7M | 0.01% | −45,190−9.8% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 393,907 | $64.8M | 0.20% | −21,577−5.2% | Reduced |
| Farallon Capital Management, L.L.C. | 367,649 | $60.5M | 0.36% | −264,000−41.8% | Reduced |
| Charles Schwab Investment Management Inc | 357,134 | $58.8M | 0.02% | −740−0.2% | Reduced |
| Geneva Capital Management LLC | 304,691 | $50.1M | 0.99% | −2,348−0.8% | Reduced |
| Legal & General Group Plc | 302,596 | $49.8M | 0.02% | −26,380−8.0% | Reduced |
| Ensemble Capital Management, LLC | 291,111 | $47.9M | 4.63% | −53,807−15.6% | Reduced |
| Morgan Stanley | 270,702 | $44.5M | 0.00% | −40,558−13.0% | Reduced |
| Raymond James & Associates | 265,492 | $43.7M | 0.04% | −5,908−2.2% | Reduced |
| First Republic Investment Management, Inc. | 262,569 | $43.2M | 0.22% | −241−0.1% | Reduced |
| Dimensional Fund Advisors LP | 255,449 | $42.0M | 0.01% | +17,574+7.4% | Added |
| Hawk Ridge Capital Management LP | 253,002 | $41.6M | 2.21% | +67,781+36.6% | Added |
| JPMorgan Chase & Co | 235,850 | $38.8M | 0.00% | −28,713−10.9% | Reduced |
| Millennium Management LLC | 218,982 | $36.0M | 0.04% | −176,571−44.6% | Reduced |
| Alyeska Investment Group, L.P. | 204,409 | $33.6M | 0.26% | −118,983−36.8% | Reduced |
| UBS Asset Management Americas Inc | 173,976 | $32.1M | 0.02% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 185,800 | $30.6M | 0.08% | −66,300−26.3% | Reduced |
| Principal Financial Group Inc | 184,391 | $30.3M | 0.02% | −10,657−5.5% | Reduced |
| First Trust Advisors LP | 179,275 | $29.5M | 0.03% | +136,015+314.4% | Added |
| Federated Hermes, Inc. | 166,235 | $27.4M | 0.07% | +112,708+210.6% | Added |
| Swiss National Bank | 160,800 | $26.5M | 0.02% | −36,900−18.7% | Reduced |
| Rhumbline Advisers | 158,984 | $26.2M | 0.03% | +9,627+6.4% | Added |
| Rockefeller Capital Management L.P. | 152,009 | $25.0M | 0.10% | −7,717−4.8% | Reduced |
| Obermeyer Wood Investment Counsel, LLLP | 151,848 | $25.0M | 1.80% | −83,402−35.5% | Reduced |
| Retirement Systems of Alabama | 151,777 | $25.0M | 0.11% | −611−0.4% | Reduced |
| Montanaro Asset Management Ltd | 142,250 | $23.4M | 3.70% | +8,500+6.4% | Added |
| Point72 Asset Management, L.P. | 134,323 | $22.1M | 0.08% | +119,823+826.4% | Added |
| MIG Capital, LLC | 132,250 | $21.8M | 3.94% | −55,285−29.5% | Reduced |
| Nuveen Asset Management, LLC | 128,016 | $21.1M | 0.01% | −807−0.6% | Reduced |
| Jackson Square Partners, LLC | 126,540 | $20.8M | 0.61% | +126,540 | New |
| Arrowstreet Capital, Limited Partnership | 114,460 | $18.8M | 0.02% | +5,149+4.7% | Added |
| Ameriprise Financial Inc | 104,990 | $17.3M | 0.01% | +21,279+25.4% | Added |
| Bank of Montreal | 102,964 | $17.2M | 0.01% | +12,588+13.9% | Added |
| Baillie Gifford & Co | 95,149 | $15.7M | 0.01% | −863−0.9% | Reduced |
| Invesco Ltd. | 93,040 | $15.3M | 0.00% | −22,780−19.7% | Reduced |
| California Public Employees Retirement System | 92,871 | $15.3M | 0.01% | −2,836−3.0% | Reduced |
| Gamco Investors, Inc. Et Al | 84,500 | $13.9M | 0.15% | −500−0.6% | Reduced |
| UBS Group AG | 81,586 | $13.4M | 0.01% | −13,329−14.0% | Reduced |
| Neuberger Berman Group LLC | 80,285 | $13.2M | 0.01% | −45,347−36.1% | Reduced |
| Deutsche Bank AG | 79,766 | $13.1M | 0.01% | −25,708−24.4% | Reduced |
| Royal Bank of Canada | 76,456 | $12.6M | 0.00% | +7,940+11.6% | Added |
| American International Group, Inc. | 73,690 | $12.1M | 0.07% | −1,093−1.5% | Reduced |
| California State Teachers Retirement System | 72,743 | $12.0M | 0.02% | −9,712−11.8% | Reduced |
| Harbor Spring Capital, LLC | 70,300 | $11.6M | 6.61% | +9,061+14.8% | Added |
| Alliancebernstein L.P. | 69,643 | $11.5M | 0.00% | −2,176−3.0% | Reduced |
| Goldman Sachs Group Inc | 67,942 | $11.2M | 0.00% | +5,893+9.5% | Added |
| Citigroup Inc | 64,907 | $10.7M | 0.01% | −56,230−46.4% | Reduced |
| New York State Common Retirement Fund | 63,774 | $10.5M | 0.01% | +762+1.2% | Added |
| Putnam Investments LLC | 61,600 | $10.1M | 0.01% | +61,600 | New |
| Public Sector Pension Investment Board | 60,000 | $9.87M | 0.07% | 00.0% | Unchanged |
| New York State Teachers Retirement System | 59,455 | $9.78M | 0.02% | −2,200−3.6% | Reduced |
| Balyasny Asset Management LLC | 56,794 | $9.35M | 0.03% | +8,162+16.8% | Added |
| SEI Investments Co | 56,691 | $9.33M | 0.02% | +14,686+35.0% | Added |
| Amundi | 57,321 | $9.23M | 0.00% | −14,108−19.8% | Reduced |
| Bridgewater Associates, LP | 55,679 | $9.16M | 0.06% | −5,771−9.4% | Reduced |
| State Board of Administration of Florida Retirement System | 53,933 | $8.87M | 0.02% | −906−1.7% | Reduced |
| Bryn Mawr Trust Co | 52,633 | $8.66M | 0.36% | −1,893−3.5% | Reduced |
| D. E. Shaw & Co., Inc. | 51,937 | $8.55M | 0.01% | −147,751−74.0% | Reduced |
| Logan Capital Management Inc | 51,530 | $8.48M | 0.41% | −109−0.2% | Reduced |
| British Columbia Investment Management Corp | 51,033 | $8.40M | 0.08% | −13,382−20.8% | Reduced |
| Barclays PLC | 48,952 | $8.06M | 0.01% | +5,502+12.7% | Added |
| Susquehanna Fundamental Investments, LLC | 46,669 | $7.68M | 0.28% | 00.0% | Unchanged |
| Asset Management One Co.,Ltd. | 45,334 | $7.47M | 0.03% | −84−0.2% | Reduced |
| Carmignac Gestion | 45,278 | $7.46M | 0.13% | +18,414+68.5% | Added |
| Texas Permanent School Fund | 42,754 | $7.04M | 0.07% | −615−1.4% | Reduced |
| NS Partners Ltd | 41,621 | $6.85M | 0.36% | −453−1.1% | Reduced |
| Allspring Global Investments Holdings, LLC | 41,580 | $6.84M | 0.01% | −10,595−20.3% | Reduced |
| Renaissance Technologies LLC | 41,230 | $6.78M | 0.01% | −40,070−49.3% | Reduced |
| Bell Asset Management Ltd | 40,575 | $6.68M | 1.14% | +16,621+69.4% | Added |
| Citadel Advisors LLC | 39,534 | $6.51M | 0.01% | −116,787−74.7% | Reduced |
| Credit Suisse AG | 39,357 | $6.48M | 0.01% | −16,553−29.6% | Reduced |
| Qube Research & Technologies Ltd | 39,175 | $6.45M | 0.02% | +39,175 | New |
| Bessemer Group Inc | 39,000 | $6.42M | 0.01% | +2,614+7.2% | Added |
| RK Capital Management, LLC | 38,995 | $6.42M | 1.38% | +5,040+14.8% | Added |
| Forte Capital LLC | 37,949 | $6.24M | 0.90% | +2,665+7.6% | Added |
| E. Ohman J:or Asset Management AB | 37,613 | $6.19M | 0.22% | −2,000−5.0% | Reduced |
| APG Asset Management N.V. | 40,213 | $6.07M | 0.01% | −4,456−10.0% | Reduced |
| Manufacturers Life Insurance Company, The | 36,337 | $5.98M | 0.00% | −6,322−14.8% | Reduced |
| Mutual of America Capital Management LLC | 35,305 | $5.81M | 0.07% | −3,634−9.3% | Reduced |
| State of Wisconsin Investment Board | 34,883 | $5.74M | 0.02% | +5,013+16.8% | Added |
| Amalgamated Bank | 34,702 | $5.71M | 0.05% | −248−0.7% | Reduced |
| DekaBank Deutsche Girozentrale | 34,008 | $5.61M | 0.01% | −29,052−46.1% | Reduced |
| Great West Life Assurance Co | 33,745 | $5.56M | 0.01% | −8,821−20.7% | Reduced |