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, Q4 2022
Institutional positions in Masimo Corp as of Dec 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
- 405
- −8 vs. Q3 2022
- Shares held
- 44.4M
- −1.85M (−4.0%) vs. Q3 2022
- Total value
- $6.58B
- +$40.0M (+0.6%) vs. Q3 2022
- New holders
- 53
- 116 more added
- Sold out
- 61
- 172 more reduced
5 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2022: 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, Q4 2022
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 5,956,948 | $881.3M | 0.03% | +542,124+10.0% | Added |
| FMR LLC | 5,456,344 | $807.3M | 0.08% | +1,599,054+41.5% | Added |
| Vanguard Group Inc | 4,855,501 | $718.4M | 0.02% | +227,439+4.9% | Added |
| Politan Capital Management LP | 4,739,963 | $701.3M | 39.47% | +91,094+2.0% | Added |
| State Street Corp | 1,698,759 | $251.3M | 0.01% | +41,611+2.5% | Added |
| RTW Investments, LP | 1,501,493 | $222.1M | 4.53% | +61,500+4.3% | Added |
| Capital Research Global Investors | 950,719 | $140.7M | 0.04% | +950,719 | New |
| Liontrust Investment Partners LLP | 950,700 | $140.7M | 2.46% | −191,400−16.8% | Reduced |
| Fundsmith LLPSuperinvestorFundsmith | 764,319 | $113.1M | 0.52% | −842−0.1% | Reduced |
| Farallon Capital Management, L.L.C. | 758,500 | $112.2M | 0.73% | +181,500+31.5% | Added |
| Geode Capital Management, LLC | 703,196 | $103.9M | 0.01% | +31,667+4.7% | Added |
| Schroder Investment Management Group | 577,277 | $85.4M | 0.14% | +178,753+44.9% | Added |
| Martin Currie Ltd | 545,148 | $80.7M | 3.15% | −27,185−4.7% | Reduced |
| T. Rowe Price Investment Management, Inc. | 541,760 | $80.2M | 0.06% | +541,760 | New |
| Bank of New York Mellon Corp | 538,352 | $79.6M | 0.02% | −4,017−0.7% | Reduced |
| Morgan Stanley | 483,255 | $71.5M | 0.01% | −212,587−30.6% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 479,249 | $70.9M | 0.25% | +9,663+2.1% | Added |
| Northern Trust Corp | 461,636 | $68.3M | 0.01% | −6,192−1.3% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 384,481 | $56.9M | 0.05% | +1,784+0.5% | Added |
| Two Sigma Advisers, LP | 359,000 | $53.1M | 0.15% | −34,900−8.9% | Reduced |
| Charles Schwab Investment Management Inc | 353,647 | $52.3M | 0.02% | +20,025+6.0% | Added |
| Legal & General Group Plc | 330,175 | $48.8M | 0.02% | −13,363−3.9% | Reduced |
| Ensemble Capital Management, LLC | 325,753 | $48.2M | 5.00% | −17,173−5.0% | Reduced |
| Geneva Capital Management LLC | 299,855 | $44.4M | 1.00% | −2,182−0.7% | Reduced |
| Norges Bank | 290,079 | $42.9M | 0.01% | +93,589+47.6% | Added |
| D. E. Shaw & Co., Inc. | 282,372 | $41.8M | 0.07% | −112,280−28.5% | Reduced |
| Goldman Sachs Group Inc | 274,056 | $40.5M | 0.01% | −454,578−62.4% | Reduced |
| JPMorgan Chase & Co | 268,299 | $39.7M | 0.01% | −80,414−23.1% | Reduced |
| First Republic Investment Management, Inc. | 262,951 | $38.9M | 0.09% | −15,508−5.6% | Reduced |
| Raymond James & Associates | 261,745 | $38.7M | 0.04% | −21,283−7.5% | Reduced |
| Alyeska Investment Group, L.P. | 255,797 | $37.8M | 0.39% | +155,797+155.8% | Added |
| Obermeyer Wood Investment Counsel, LLLP | 243,546 | $36.0M | 2.72% | −19,953−7.6% | Reduced |
| Dimensional Fund Advisors LP | 228,662 | $33.8M | 0.01% | +3,375+1.5% | Added |
| Bank of Montreal | 207,229 | $30.7M | 0.01% | +79,494+62.2% | Added |
| Swiss National Bank | 202,800 | $30.0M | 0.02% | −25,714−11.3% | Reduced |
| Principal Financial Group Inc | 194,240 | $28.7M | 0.02% | +2,001+1.0% | Added |
| Hawk Ridge Capital Management LP | 192,121 | $28.4M | 1.92% | +12,813+7.1% | Added |
| Millennium Management LLC | 190,936 | $28.2M | 0.03% | −357,690−65.2% | Reduced |
| Renaissance Technologies LLC | 179,700 | $26.6M | 0.04% | +131,900+275.9% | Added |
| UBS Asset Management Americas Inc | 175,595 | $26.0M | 0.01% | −150,644−46.2% | Reduced |
| Deutsche Bank AG | 169,436 | $25.1M | 0.01% | +29,535+21.1% | Added |
| Retirement Systems of Alabama | 152,939 | $22.6M | 0.10% | +470+0.3% | Added |
| Canada Pension Plan Investment Board | 150,000 | $22.2M | 0.04% | −168,600−52.9% | Reduced |
| Rhumbline Advisers | 146,991 | $21.7M | 0.03% | +6,206+4.4% | Added |
| MIG Capital, LLC | 126,879 | $18.8M | 3.69% | +126,879 | New |
| First Trust Advisors LP | 125,321 | $18.5M | 0.02% | +76,928+159.0% | Added |
| Neuberger Berman Group LLC | 123,939 | $18.3M | 0.02% | −378,251−75.3% | Reduced |
| Amundi | 114,508 | $18.0M | 0.01% | +8,938+8.5% | Added |
| Citigroup Inc | 119,151 | $17.6M | 0.02% | −504,700−80.9% | Reduced |
| Montanaro Asset Management Ltd | 118,750 | $17.6M | 2.86% | +2,250+1.9% | Added |
| Balyasny Asset Management LLC | 114,336 | $16.9M | 0.06% | +97,831+592.7% | Added |
| California Public Employees Retirement System | 110,514 | $16.4M | 0.01% | −2,835−2.5% | Reduced |
| Invesco Ltd. | 101,277 | $15.0M | 0.00% | −29,664−22.7% | Reduced |
| Nuveen Asset Management, LLC | 101,207 | $15.0M | 0.01% | −7,038−6.5% | Reduced |
| UBS Group AG | 96,655 | $14.3M | 0.01% | +7,256+8.1% | Added |
| Baillie Gifford & Co | 96,135 | $14.2M | 0.01% | +2,501+2.7% | Added |
| BNP Paribas Arbitrage, SA | 95,528 | $14.1M | 0.04% | −72,378−43.1% | Reduced |
| Brookfield Asset Management Inc. | 86,950 | $12.9M | 0.05% | +50,924+141.4% | Added |
| Arrowstreet Capital, Limited Partnership | 86,229 | $12.8M | 0.02% | +327+0.4% | Added |
| Alliancebernstein L.P. | 85,700 | $12.7M | 0.01% | +10,143+13.4% | Added |
| Credit Suisse AG | 85,666 | $12.7M | 0.01% | +16,493+23.8% | Added |
| Gamco Investors, Inc. Et Al | 85,000 | $12.6M | 0.14% | 00.0% | Unchanged |
| California State Teachers Retirement System | 83,154 | $12.3M | 0.02% | −2,853−3.3% | Reduced |
| British Columbia Investment Management Corp | 82,915 | $12.3M | 0.13% | −15,737−16.0% | Reduced |
| Woodline Partners LP | 80,516 | $11.9M | 0.16% | +63,017+360.1% | Added |
| American International Group, Inc. | 75,491 | $11.2M | 0.08% | −952−1.2% | Reduced |
| Susquehanna Fundamental Investments, LLC | 72,160 | $10.7M | 0.18% | +6,721+10.3% | Added |
| Ameriprise Financial Inc | 70,670 | $10.5M | 0.00% | −51,131−42.0% | Reduced |
| Two Sigma Investments, LP | 67,808 | $10.0M | 0.03% | +4,948+7.9% | Added |
| Royal Bank of Canada | 67,233 | $9.95M | 0.00% | −4,131−5.8% | Reduced |
| New York State Common Retirement Fund | 66,434 | $9.83M | 0.01% | +2,635+4.1% | Added |
| New York State Teachers Retirement System | 63,455 | $9.39M | 0.02% | −2,300−3.5% | Reduced |
| Harbor Spring Capital, LLC | 61,239 | $9.06M | 3.40% | +61,239 | New |
| Bridgewater Associates, LP | 60,568 | $8.96M | 0.05% | −18,066−23.0% | Reduced |
| Public Sector Pension Investment Board | 60,000 | $8.88M | 0.07% | +60,000 | New |
| Acadian Asset Management LLC | 59,218 | $8.76M | 0.04% | −51,407−46.5% | Reduced |
| State Board of Administration of Florida Retirement System | 55,539 | $8.22M | 0.02% | −360−0.6% | Reduced |
| Bank of Nova Scotia | 55,111 | $8.15M | 0.02% | −398,039−87.8% | Reduced |
| Marshall Wace, LLP | 54,622 | $8.08M | 0.02% | +23,509+75.6% | Added |
| DekaBank Deutsche Girozentrale | 55,106 | $7.88M | 0.02% | −7,840−12.5% | Reduced |
| Great West Life Assurance Co | 52,489 | $7.78M | 0.02% | +3,544+7.2% | Added |
| APG Asset Management N.V. | 52,003 | $7.69M | 0.01% | +38,275+278.8% | Added |
| Bell Asset Management Ltd | 51,732 | $7.65M | 1.43% | −48−0.1% | Reduced |
| Logan Capital Management Inc | 51,510 | $7.62M | 0.39% | −3,710−6.7% | Reduced |
| Bryn Mawr Trust Co | 50,704 | $7.50M | 0.34% | +205+0.4% | Added |
| Allspring Global Investments Holdings, LLC | 49,125 | $7.27M | 0.01% | −53,520−52.1% | Reduced |
| Point72 Asset Management, L.P. | 48,500 | $7.18M | 0.03% | −154,588−76.1% | Reduced |
| Mirabella Financial Services LLP | 47,440 | $7.02M | 0.63% | +40,339+568.1% | Added |
| Mirae Asset Global Investments Co., Ltd. | 44,895 | $6.64M | 0.02% | −20,398−31.2% | Reduced |
| Barclays PLC | 44,001 | $6.51M | 0.01% | −360,696−89.1% | Reduced |
| Asset Management One Co.,Ltd. | 43,492 | $6.39M | 0.03% | −3,671−7.8% | Reduced |
| Cinctive Capital Management LP | 42,318 | $6.26M | 0.32% | +27,896+193.4% | Added |
| NS Partners Ltd | 41,999 | $6.21M | 0.37% | +53+0.1% | Added |
| Mutual of America Capital Management LLC | 39,754 | $5.88M | 0.07% | +898+2.3% | Added |
| E. Ohman J:or Asset Management AB | 39,613 | $5.86M | 0.26% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 39,150 | $5.79M | 0.00% | −218,022−84.8% | Reduced |
| Virginia Retirement Systems Et Al | 38,900 | $5.76M | 0.06% | +15,900+69.1% | Added |
| Teacher Retirement System of Texas | 38,415 | $5.68M | 0.04% | +30,886+410.2% | Added |
| Amalgamated Bank | 36,777 | $5.44M | 0.05% | +447+1.2% | Added |
| ExodusPoint Capital Management, LP | 36,443 | $5.39M | 0.08% | +22,857+168.2% | Added |