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 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 | $7.20B |
| 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 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 |
|---|---|---|---|---|---|
| Citadel Advisors LLC | 33,212 | $4.91M | 0.01% | −155,505−82.4% | Reduced |
| Shell Asset Management Co | 33,499 | $4.96M | 0.22% | −6,243−15.7% | Reduced |
| Banco Santander, S.A. | 33,500 | $4.96M | 0.07% | −8,483−20.2% | Reduced |
| Forte Capital LLC | 34,748 | $5.14M | 0.88% | −6,189−15.1% | Reduced |
| State of Tennessee, Treasury Department | 36,154 | $5.35M | 0.02% | −10,000−21.7% | Reduced |
| ExodusPoint Capital Management, LP | 36,443 | $5.39M | 0.08% | +22,857+168.2% | Added |
| Amalgamated Bank | 36,777 | $5.44M | 0.05% | +447+1.2% | Added |
| Teacher Retirement System of Texas | 38,415 | $5.68M | 0.04% | +30,886+410.2% | Added |
| Virginia Retirement Systems Et Al | 38,900 | $5.76M | 0.06% | +15,900+69.1% | Added |
| Manufacturers Life Insurance Company, The | 39,150 | $5.79M | 0.00% | −218,022−84.8% | Reduced |
| E. Ohman J:or Asset Management AB | 39,613 | $5.86M | 0.26% | 00.0% | Unchanged |
| Mutual of America Capital Management LLC | 39,754 | $5.88M | 0.07% | +898+2.3% | Added |
| NS Partners Ltd | 41,999 | $6.21M | 0.37% | +53+0.1% | Added |
| Cinctive Capital Management LP | 42,318 | $6.26M | 0.32% | +27,896+193.4% | Added |
| Asset Management One Co.,Ltd. | 43,492 | $6.39M | 0.03% | −3,671−7.8% | Reduced |
| Barclays PLC | 44,001 | $6.51M | 0.01% | −360,696−89.1% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 44,895 | $6.64M | 0.02% | −20,398−31.2% | Reduced |
| Mirabella Financial Services LLP | 47,440 | $7.02M | 0.63% | +40,339+568.1% | Added |
| Point72 Asset Management, L.P. | 48,500 | $7.18M | 0.03% | −154,588−76.1% | Reduced |
| Allspring Global Investments Holdings, LLC | 49,125 | $7.27M | 0.01% | −53,520−52.1% | Reduced |
| Bryn Mawr Trust Co | 50,704 | $7.50M | 0.34% | +205+0.4% | Added |
| Logan Capital Management Inc | 51,510 | $7.62M | 0.39% | −3,710−6.7% | Reduced |
| Bell Asset Management Ltd | 51,732 | $7.65M | 1.43% | −48−0.1% | Reduced |
| APG Asset Management N.V. | 52,003 | $7.69M | 0.01% | +38,275+278.8% | Added |
| Great West Life Assurance Co | 52,489 | $7.78M | 0.02% | +3,544+7.2% | Added |
| DekaBank Deutsche Girozentrale | 55,106 | $7.88M | 0.02% | −7,840−12.5% | Reduced |
| Marshall Wace, LLP | 54,622 | $8.08M | 0.02% | +23,509+75.6% | Added |
| Bank of Nova Scotia | 55,111 | $8.15M | 0.02% | −398,039−87.8% | Reduced |
| State Board of Administration of Florida Retirement System | 55,539 | $8.22M | 0.02% | −360−0.6% | Reduced |
| Acadian Asset Management LLC | 59,218 | $8.76M | 0.04% | −51,407−46.5% | Reduced |
| Public Sector Pension Investment Board | 60,000 | $8.88M | 0.07% | +60,000 | New |
| Bridgewater Associates, LP | 60,568 | $8.96M | 0.05% | −18,066−23.0% | Reduced |
| Harbor Spring Capital, LLC | 61,239 | $9.06M | 3.40% | +61,239 | New |
| New York State Teachers Retirement System | 63,455 | $9.39M | 0.02% | −2,300−3.5% | Reduced |
| New York State Common Retirement Fund | 66,434 | $9.83M | 0.01% | +2,635+4.1% | Added |
| Royal Bank of Canada | 67,233 | $9.95M | 0.00% | −4,131−5.8% | Reduced |
| Two Sigma Investments, LP | 67,808 | $10.0M | 0.03% | +4,948+7.9% | Added |
| Ameriprise Financial Inc | 70,670 | $10.5M | 0.00% | −51,131−42.0% | Reduced |
| Susquehanna Fundamental Investments, LLC | 72,160 | $10.7M | 0.18% | +6,721+10.3% | Added |
| American International Group, Inc. | 75,491 | $11.2M | 0.08% | −952−1.2% | Reduced |
| Woodline Partners LP | 80,516 | $11.9M | 0.16% | +63,017+360.1% | Added |
| British Columbia Investment Management Corp | 82,915 | $12.3M | 0.13% | −15,737−16.0% | Reduced |
| California State Teachers Retirement System | 83,154 | $12.3M | 0.02% | −2,853−3.3% | Reduced |
| Gamco Investors, Inc. Et Al | 85,000 | $12.6M | 0.14% | 00.0% | Unchanged |
| Credit Suisse AG | 85,666 | $12.7M | 0.01% | +16,493+23.8% | Added |
| Alliancebernstein L.P. | 85,700 | $12.7M | 0.01% | +10,143+13.4% | Added |
| Arrowstreet Capital, Limited Partnership | 86,229 | $12.8M | 0.02% | +327+0.4% | Added |
| Brookfield Asset Management Inc. | 86,950 | $12.9M | 0.05% | +50,924+141.4% | Added |
| BNP Paribas Arbitrage, SA | 95,528 | $14.1M | 0.04% | −72,378−43.1% | Reduced |
| Baillie Gifford & Co | 96,135 | $14.2M | 0.01% | +2,501+2.7% | Added |
| UBS Group AG | 96,655 | $14.3M | 0.01% | +7,256+8.1% | Added |
| Nuveen Asset Management, LLC | 101,207 | $15.0M | 0.01% | −7,038−6.5% | Reduced |
| Invesco Ltd. | 101,277 | $15.0M | 0.00% | −29,664−22.7% | Reduced |
| California Public Employees Retirement System | 110,514 | $16.4M | 0.01% | −2,835−2.5% | Reduced |
| Balyasny Asset Management LLC | 114,336 | $16.9M | 0.06% | +97,831+592.7% | Added |
| Montanaro Asset Management Ltd | 118,750 | $17.6M | 2.86% | +2,250+1.9% | Added |
| Citigroup Inc | 119,151 | $17.6M | 0.02% | −504,700−80.9% | Reduced |
| Amundi | 114,508 | $18.0M | 0.01% | +8,938+8.5% | Added |
| Neuberger Berman Group LLC | 123,939 | $18.3M | 0.02% | −378,251−75.3% | Reduced |
| First Trust Advisors LP | 125,321 | $18.5M | 0.02% | +76,928+159.0% | Added |
| MIG Capital, LLC | 126,879 | $18.8M | 3.69% | +126,879 | New |
| Rhumbline Advisers | 146,991 | $21.7M | 0.03% | +6,206+4.4% | Added |
| Canada Pension Plan Investment Board | 150,000 | $22.2M | 0.04% | −168,600−52.9% | Reduced |
| Retirement Systems of Alabama | 152,939 | $22.6M | 0.10% | +470+0.3% | Added |
| Deutsche Bank AG | 169,436 | $25.1M | 0.01% | +29,535+21.1% | Added |
| UBS Asset Management Americas Inc | 175,595 | $26.0M | 0.01% | −150,644−46.2% | Reduced |
| Renaissance Technologies LLC | 179,700 | $26.6M | 0.04% | +131,900+275.9% | Added |
| Millennium Management LLC | 190,936 | $28.2M | 0.03% | −357,690−65.2% | Reduced |
| Hawk Ridge Capital Management LP | 192,121 | $28.4M | 1.92% | +12,813+7.1% | Added |
| Principal Financial Group Inc | 194,240 | $28.7M | 0.02% | +2,001+1.0% | Added |
| Swiss National Bank | 202,800 | $30.0M | 0.02% | −25,714−11.3% | Reduced |
| Bank of Montreal | 207,229 | $30.7M | 0.02% | +79,494+62.2% | Added |
| Dimensional Fund Advisors LP | 228,662 | $33.8M | 0.01% | +3,375+1.5% | Added |
| Obermeyer Wood Investment Counsel, LLLP | 243,546 | $36.0M | 2.72% | −19,953−7.6% | Reduced |
| Alyeska Investment Group, L.P. | 255,797 | $37.8M | 0.39% | +155,797+155.8% | Added |
| Raymond James & Associates | 261,745 | $38.7M | 0.04% | −21,283−7.5% | Reduced |
| First Republic Investment Management, Inc. | 262,951 | $38.9M | 0.09% | −15,508−5.6% | Reduced |
| JPMorgan Chase & Co | 268,299 | $39.7M | 0.01% | −80,414−23.1% | Reduced |
| Goldman Sachs Group Inc | 274,056 | $40.5M | 0.01% | −454,578−62.4% | Reduced |
| D. E. Shaw & Co., Inc. | 282,372 | $41.8M | 0.07% | −112,280−28.5% | Reduced |
| Norges Bank | 290,079 | $42.9M | 0.01% | +93,589+47.6% | Added |
| Geneva Capital Management LLC | 299,855 | $44.4M | 1.00% | −2,182−0.7% | Reduced |
| Ensemble Capital Management, LLC | 325,753 | $48.2M | 5.00% | −17,173−5.0% | Reduced |
| Legal & General Group Plc | 330,175 | $48.8M | 0.02% | −13,363−3.9% | Reduced |
| Charles Schwab Investment Management Inc | 353,647 | $52.3M | 0.02% | +20,025+6.0% | Added |
| Two Sigma Advisers, LP | 359,000 | $53.1M | 0.15% | −34,900−8.9% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 384,481 | $56.9M | 0.05% | +1,784+0.5% | Added |
| Northern Trust Corp | 461,636 | $68.3M | 0.01% | −6,192−1.3% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 479,249 | $70.9M | 0.25% | +9,663+2.1% | Added |
| Morgan Stanley | 483,255 | $71.5M | 0.01% | −212,587−30.6% | Reduced |
| Bank of New York Mellon Corp | 538,352 | $79.6M | 0.02% | −4,017−0.7% | Reduced |
| T. Rowe Price Investment Management, Inc. | 541,760 | $80.2M | 0.06% | +541,760 | New |
| Martin Currie Ltd | 545,148 | $80.7M | 3.15% | −27,185−4.7% | Reduced |
| Schroder Investment Management Group | 577,277 | $85.4M | 0.14% | +178,753+44.9% | Added |
| Geode Capital Management, LLC | 703,196 | $103.9M | 0.01% | +31,667+4.7% | Added |
| Farallon Capital Management, L.L.C. | 758,500 | $112.2M | 0.73% | +181,500+31.5% | Added |
| Fundsmith LLPSuperinvestorFundsmith | 764,319 | $113.1M | 0.52% | −842−0.1% | Reduced |
| Liontrust Investment Partners LLP | 950,700 | $140.7M | 2.52% | −191,400−16.8% | Reduced |
| Capital Research Global Investors | 950,719 | $140.7M | 0.04% | +950,719 | New |
| RTW Investments, LP | 1,501,493 | $222.1M | 4.53% | +61,500+4.3% | Added |