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, 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 | $7.20B |
| 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, 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 |
|---|---|---|---|---|---|
| State of Tennessee, Treasury Department | 26,090 | $4.29M | 0.02% | −7,848−23.1% | Reduced |
| Westmount Partners, LLC | 26,424 | $4.35M | 1.89% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 26,666 | $4.39M | 0.01% | −1,877−6.6% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 26,714 | $4.40M | 0.01% | −5,531−17.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 26,933 | $4.43M | 0.01% | −17,416−39.3% | Reduced |
| 13D Management LLC | 27,600 | $4.54M | 2.48% | +27,600 | New |
| CenterBook Partners LP | 29,755 | $4.90M | 0.61% | +15,245+105.1% | Added |
| MetLife Investment Management | 31,057 | $5.11M | 0.04% | −26−0.1% | Reduced |
| Man Group plc | 32,548 | $5.36M | 0.02% | – | – |
| Banco Santander, S.A. | 32,724 | $5.38M | 0.07% | −405−1.2% | Reduced |
| South Dakota Investment Council | 32,947 | $5.42M | 0.11% | +900+2.8% | Added |
| Gabelli Funds LLC | 33,000 | $5.43M | 0.04% | 00.0% | Unchanged |
| Wells Fargo & Company | 33,262 | $5.47M | 0.00% | +17,983+117.7% | Added |
| Storebrand Asset Management AS | 33,350 | $5.49M | 0.03% | +28,248+553.7% | Added |
| Moran Wealth Management, LLC | 33,660 | $5.54M | 0.21% | −521−1.5% | Reduced |
| Great West Life Assurance Co | 33,745 | $5.56M | 0.01% | −8,821−20.7% | Reduced |
| DekaBank Deutsche Girozentrale | 34,008 | $5.61M | 0.01% | −29,052−46.1% | Reduced |
| Amalgamated Bank | 34,702 | $5.71M | 0.05% | −248−0.7% | Reduced |
| State of Wisconsin Investment Board | 34,883 | $5.74M | 0.02% | +5,013+16.8% | Added |
| Mutual of America Capital Management LLC | 35,305 | $5.81M | 0.07% | −3,634−9.3% | Reduced |
| Manufacturers Life Insurance Company, The | 36,337 | $5.98M | 0.00% | −6,322−14.8% | Reduced |
| APG Asset Management N.V. | 40,213 | $6.07M | 0.01% | −4,456−10.0% | Reduced |
| E. Ohman J:or Asset Management AB | 37,613 | $6.19M | 0.22% | −2,000−5.0% | Reduced |
| Forte Capital LLC | 37,949 | $6.24M | 0.90% | +2,665+7.6% | Added |
| RK Capital Management, LLC | 38,995 | $6.42M | 1.38% | +5,040+14.8% | Added |
| Bessemer Group Inc | 39,000 | $6.42M | 0.01% | +2,614+7.2% | Added |
| Qube Research & Technologies Ltd | 39,175 | $6.45M | 0.03% | +39,175 | New |
| Credit Suisse AG | 39,357 | $6.48M | 0.01% | −16,553−29.6% | Reduced |
| Citadel Advisors LLC | 39,534 | $6.51M | 0.01% | −116,787−74.7% | Reduced |
| Bell Asset Management Ltd | 40,575 | $6.68M | 1.14% | +16,621+69.4% | Added |
| Renaissance Technologies LLC | 41,230 | $6.78M | 0.01% | −40,070−49.3% | Reduced |
| Allspring Global Investments Holdings, LLC | 41,580 | $6.84M | 0.01% | −10,595−20.3% | Reduced |
| NS Partners Ltd | 41,621 | $6.85M | 0.36% | −453−1.1% | Reduced |
| Texas Permanent School Fund | 42,754 | $7.04M | 0.07% | −615−1.4% | Reduced |
| Carmignac Gestion | 45,278 | $7.46M | 0.13% | +18,414+68.5% | Added |
| Asset Management One Co.,Ltd. | 45,334 | $7.47M | 0.03% | −84−0.2% | Reduced |
| Susquehanna Fundamental Investments, LLC | 46,669 | $7.68M | 0.28% | 00.0% | Unchanged |
| Barclays PLC | 48,952 | $8.06M | 0.01% | +5,502+12.7% | Added |
| British Columbia Investment Management Corp | 51,033 | $8.40M | 0.08% | −13,382−20.8% | Reduced |
| Logan Capital Management Inc | 51,530 | $8.48M | 0.41% | −109−0.2% | Reduced |
| D. E. Shaw & Co., Inc. | 51,937 | $8.55M | 0.01% | −147,751−74.0% | Reduced |
| Bryn Mawr Trust Co | 52,633 | $8.66M | 0.36% | −1,893−3.5% | Reduced |
| State Board of Administration of Florida Retirement System | 53,933 | $8.87M | 0.02% | −906−1.7% | Reduced |
| Bridgewater Associates, LP | 55,679 | $9.16M | 0.06% | −5,771−9.4% | Reduced |
| Amundi | 57,321 | $9.23M | 0.00% | −14,108−19.8% | Reduced |
| SEI Investments Co | 56,691 | $9.33M | 0.02% | +14,686+35.0% | Added |
| Balyasny Asset Management LLC | 56,794 | $9.35M | 0.03% | +8,162+16.8% | Added |
| New York State Teachers Retirement System | 59,455 | $9.78M | 0.02% | −2,200−3.6% | Reduced |
| Public Sector Pension Investment Board | 60,000 | $9.87M | 0.07% | 00.0% | Unchanged |
| Putnam Investments LLC | 61,600 | $10.1M | 0.01% | +61,600 | New |
| New York State Common Retirement Fund | 63,774 | $10.5M | 0.01% | +762+1.2% | Added |
| Citigroup Inc | 64,907 | $10.7M | 0.01% | −56,230−46.4% | Reduced |
| Goldman Sachs Group Inc | 67,942 | $11.2M | 0.00% | +5,893+9.5% | Added |
| Alliancebernstein L.P. | 69,643 | $11.5M | 0.00% | −2,176−3.0% | Reduced |
| Harbor Spring Capital, LLC | 70,300 | $11.6M | 6.61% | +9,061+14.8% | Added |
| California State Teachers Retirement System | 72,743 | $12.0M | 0.02% | −9,712−11.8% | Reduced |
| American International Group, Inc. | 73,690 | $12.1M | 0.07% | −1,093−1.5% | Reduced |
| Royal Bank of Canada | 76,456 | $12.6M | 0.00% | +7,940+11.6% | Added |
| Deutsche Bank AG | 79,766 | $13.1M | 0.01% | −25,708−24.4% | Reduced |
| Neuberger Berman Group LLC | 80,285 | $13.2M | 0.01% | −45,347−36.1% | Reduced |
| UBS Group AG | 81,586 | $13.4M | 0.01% | −13,329−14.0% | Reduced |
| Gamco Investors, Inc. Et Al | 84,500 | $13.9M | 0.15% | −500−0.6% | Reduced |
| California Public Employees Retirement System | 92,871 | $15.3M | 0.01% | −2,836−3.0% | Reduced |
| Invesco Ltd. | 93,040 | $15.3M | 0.00% | −22,780−19.7% | Reduced |
| Baillie Gifford & Co | 95,149 | $15.7M | 0.01% | −863−0.9% | Reduced |
| Bank of Montreal | 102,964 | $17.2M | 0.01% | +12,588+13.9% | Added |
| Ameriprise Financial Inc | 104,990 | $17.3M | 0.01% | +21,279+25.4% | Added |
| Arrowstreet Capital, Limited Partnership | 114,460 | $18.8M | 0.02% | +5,149+4.7% | Added |
| Jackson Square Partners, LLC | 126,540 | $20.8M | 0.61% | +126,540 | New |
| Nuveen Asset Management, LLC | 128,016 | $21.1M | 0.01% | −807−0.6% | Reduced |
| MIG Capital, LLC | 132,250 | $21.8M | 3.94% | −55,285−29.5% | Reduced |
| Point72 Asset Management, L.P. | 134,323 | $22.1M | 0.08% | +119,823+826.4% | Added |
| Montanaro Asset Management Ltd | 142,250 | $23.4M | 3.70% | +8,500+6.4% | Added |
| Retirement Systems of Alabama | 151,777 | $25.0M | 0.11% | −611−0.4% | Reduced |
| Obermeyer Wood Investment Counsel, LLLP | 151,848 | $25.0M | 1.80% | −83,402−35.5% | Reduced |
| Rockefeller Capital Management L.P. | 152,009 | $25.0M | 0.10% | −7,717−4.8% | Reduced |
| Rhumbline Advisers | 158,984 | $26.2M | 0.03% | +9,627+6.4% | Added |
| Swiss National Bank | 160,800 | $26.5M | 0.02% | −36,900−18.7% | Reduced |
| Federated Hermes, Inc. | 166,235 | $27.4M | 0.07% | +112,708+210.6% | Added |
| First Trust Advisors LP | 179,275 | $29.5M | 0.03% | +136,015+314.4% | Added |
| Principal Financial Group Inc | 184,391 | $30.3M | 0.02% | −10,657−5.5% | Reduced |
| Two Sigma Advisers, LP | 185,800 | $30.6M | 0.08% | −66,300−26.3% | Reduced |
| UBS Asset Management Americas Inc | 173,976 | $32.1M | 0.02% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 204,409 | $33.6M | 0.26% | −118,983−36.8% | Reduced |
| Millennium Management LLC | 218,982 | $36.0M | 0.04% | −176,571−44.6% | Reduced |
| JPMorgan Chase & Co | 235,850 | $38.8M | 0.00% | −28,713−10.9% | Reduced |
| Hawk Ridge Capital Management LP | 253,002 | $41.6M | 2.21% | +67,781+36.6% | Added |
| Dimensional Fund Advisors LP | 255,449 | $42.0M | 0.01% | +17,574+7.4% | Added |
| First Republic Investment Management, Inc. | 262,569 | $43.2M | 0.22% | −241−0.1% | Reduced |
| Raymond James & Associates | 265,492 | $43.7M | 0.04% | −5,908−2.2% | Reduced |
| Morgan Stanley | 270,702 | $44.5M | 0.00% | −40,558−13.0% | Reduced |
| Ensemble Capital Management, LLC | 291,111 | $47.9M | 4.63% | −53,807−15.6% | Reduced |
| Legal & General Group Plc | 302,596 | $49.8M | 0.02% | −26,380−8.0% | Reduced |
| Geneva Capital Management LLC | 304,691 | $50.1M | 0.99% | −2,348−0.8% | Reduced |
| Charles Schwab Investment Management Inc | 357,134 | $58.8M | 0.02% | −740−0.2% | Reduced |
| Farallon Capital Management, L.L.C. | 367,649 | $60.5M | 0.36% | −264,000−41.8% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 393,907 | $64.8M | 0.20% | −21,577−5.2% | Reduced |
| Northern Trust Corp | 417,544 | $68.7M | 0.01% | −45,190−9.8% | Reduced |
| Norges Bank | 437,000 | $71.9M | 0.01% | +65,790+17.7% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 490,107 | $80.6M | 0.06% | −2,839−0.6% | Reduced |