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 2021
Institutional positions in Masimo Corp as of Dec 31, 2021. 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
- 520
- +53 vs. Q3 2021
- Shares held
- 46.4M
- +141.5K (+0.3%) vs. Q3 2021
- Total value
- $13.6B
- +$1.05B (+8.4%) vs. Q3 2021
- New holders
- 95
- 182 more added
- Sold out
- 42
- 156 more reduced
8 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| HSBC Holdings PLC | 35,027 | $10.3M | 0.01% | +6,748+23.9% | Added |
| Banco Santander, S.A. | 35,660 | $10.4M | 0.06% | +1,927+5.7% | Added |
| Dai-Ichi Life Insurance Company, Ltd | 36,132 | $10.6M | 0.14% | +5,500+18.0% | Added |
| Public Employees Retirement System of Ohio | 37,118 | $10.9M | 0.04% | −959−2.5% | Reduced |
| Texas Permanent School Fund | 37,375 | $10.9M | 0.13% | −94−0.3% | Reduced |
| Envestnet Asset Management Inc | 37,565 | $11.0M | 0.01% | +2,487+7.1% | Added |
| Thrivent Financial for Lutherans | 38,420 | $11.2M | 0.02% | −2,956−7.1% | Reduced |
| Paradigm Capital Management Inc | 38,453 | $11.3M | 0.50% | +1,300+3.5% | Added |
| Amalgamated Bank | 38,553 | $11.3M | 0.08% | +2,545+7.1% | Added |
| Illinois Municipal Retirement Fund | 39,010 | $11.4M | 0.32% | +15,727+67.5% | Added |
| Handelsinvest Investeringsforvaltning | 40,000 | $11.7M | 1.19% | +4,000+11.1% | Added |
| NS Partners Ltd | 40,982 | $12.0M | 0.56% | +6,925+20.3% | Added |
| Brewin Dolphin Wealth Management Ltd | 41,417 | $12.1M | 1.31% | +1,637+4.1% | Added |
| Eaton Vance Management | 41,916 | $12.3M | 0.01% | +70+0.2% | Added |
| Royal Bank of Canada | 42,345 | $12.4M | 0.00% | −2,809−6.2% | Reduced |
| SEI Investments Co | 42,519 | $12.4M | 0.02% | +3,437+8.8% | Added |
| State of Tennessee, Treasury Department | 42,823 | $12.5M | 0.05% | +4,000+10.3% | Added |
| Forte Capital LLC | 43,087 | $12.6M | 1.59% | +1,588+3.8% | Added |
| Man Group plc | 43,962 | $12.9M | 0.04% | +1,833+4.4% | Added |
| Mutual of America Capital Management LLC | 45,429 | $13.3M | 0.13% | +763+1.7% | Added |
| Great West Life Assurance Co | 47,997 | $14.0M | 0.03% | +1,050+2.2% | Added |
| Barclays PLC | 49,290 | $14.4M | 0.01% | −18,460−27.2% | Reduced |
| AQR Capital Management LLC | 51,313 | $15.0M | 0.03% | −405−0.8% | Reduced |
| Squarepoint Ops LLC | 51,876 | $15.2M | 0.07% | +40,272+347.1% | Added |
| Bryn Mawr Trust Co | 53,286 | $15.6M | 0.56% | −812−1.5% | Reduced |
| 2Xideas AG | 53,582 | $15.7M | 0.95% | +7,818+17.1% | Added |
| Erste Asset Management GmbH | 53,000 | $15.8M | 0.28% | +4,000+8.2% | Added |
| Logan Capital Management Inc | 55,183 | $16.2M | 0.70% | −2,987−5.1% | Reduced |
| Bridgewater Associates, LP | 56,836 | $16.6M | 0.10% | +83+0.1% | Added |
| Citadel Advisors LLC | 56,924 | $16.7M | 0.02% | +38,669+211.8% | Added |
| Asset Management One Co.,Ltd. | 57,085 | $16.8M | 0.06% | +21,301+59.5% | Added |
| Manufacturers Life Insurance Company, The | 57,433 | $16.8M | 0.01% | −59,122−50.7% | Reduced |
| Bank of Montreal | 59,595 | $17.8M | 0.01% | −716−1.2% | Reduced |
| AXA S.A. | 63,280 | $18.5M | 0.05% | +2,083+3.4% | Added |
| State Board of Administration of Florida Retirement System | 65,590 | $19.2M | 0.03% | −179−0.3% | Reduced |
| New York State Teachers Retirement System | 67,226 | $19.7M | 0.04% | +5,732+9.3% | Added |
| Scout Investments, Inc. | 68,957 | $20.2M | 0.29% | −918−1.3% | Reduced |
| Wells Fargo & Company | 72,832 | $21.3M | 0.01% | −4,139−5.4% | Reduced |
| First Trust Advisors LP | 73,611 | $21.6M | 0.02% | +46,901+175.6% | Added |
| Toronto Dominion Bank | 75,315 | $22.1M | 0.03% | +67,937+920.8% | Added |
| New York State Common Retirement Fund | 76,590 | $22.4M | 0.02% | +2,126+2.9% | Added |
| Adage Capital Partners GP, L.L.C. | 80,000 | $23.4M | 0.04% | +80,000 | New |
| Alliancebernstein L.P. | 80,276 | $23.5M | 0.01% | −2,281−2.8% | Reduced |
| British Columbia Investment Management Corp | 81,186 | $23.8M | 0.13% | −470−0.6% | Reduced |
| BNP Paribas Arbitrage, SA | 82,979 | $24.3M | 0.06% | +77,754+1,488.1% | Added |
| Amundi | 104,066 | $24.7M | 0.02% | +4,638+4.7% | Added |
| American International Group, Inc. | 86,207 | $25.2M | 0.13% | −1,329−1.5% | Reduced |
| Gamco Investors, Inc. Et Al | 87,500 | $25.6M | 0.22% | −1,000−1.1% | Reduced |
| Moore Capital Management, LP | 89,831 | $26.3M | 0.67% | +89,831 | New |
| Baillie Gifford & Co | 89,929 | $26.3M | 0.01% | +3,561+4.1% | Added |
| California State Teachers Retirement System | 90,209 | $26.4M | 0.03% | +2,243+2.5% | Added |
| Parametric Portfolio Associates LLC | 100,739 | $29.5M | 0.02% | +4,937+5.2% | Added |
| Alyeska Investment Group, L.P. | 109,135 | $32.0M | 0.37% | −38,576−26.1% | Reduced |
| Two Sigma Investments, LP | 113,319 | $33.2M | 0.08% | +66,747+143.3% | Added |
| Deutsche Bank AG | 114,522 | $33.5M | 0.02% | −31,812−21.7% | Reduced |
| Montanaro Asset Management Ltd | 122,150 | $35.8M | 3.61% | +19,200+18.6% | Added |
| Bellevue Group AG | 131,376 | $38.5M | 0.40% | +3,663+2.9% | Added |
| Rhumbline Advisers | 135,102 | $39.6M | 0.05% | +2,476+1.9% | Added |
| Arrowstreet Capital, Limited Partnership | 142,507 | $41.7M | 0.05% | −38,270−21.2% | Reduced |
| Rockefeller Capital Management L.P. | 144,443 | $42.3M | 0.20% | −1,050−0.7% | Reduced |
| Bank of America Corp | 151,115 | $44.2M | 0.00% | −43,033−22.2% | Reduced |
| Capitolis Advisors LLC | 152,375 | $44.6M | 0.27% | +18,863+14.1% | Added |
| Retirement Systems of Alabama | 155,727 | $45.6M | 0.16% | +942+0.6% | Added |
| Nuveen Asset Management, LLC | 158,932 | $46.5M | 0.01% | +6,032+3.9% | Added |
| Blue Whale Capital LLP | 159,700 | $46.8M | 3.81% | +11,800+8.0% | Added |
| Morgan Stanley | 162,669 | $47.6M | 0.01% | +3,183+2.0% | Added |
| Two Sigma Advisers, LP | 162,800 | $47.7M | 0.12% | +102,200+168.6% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 172,417 | $50.5M | 0.11% | −4,752−2.7% | Reduced |
| Principal Financial Group Inc | 176,488 | $51.7M | 0.03% | −1,995−1.1% | Reduced |
| JPMorgan Chase & Co | 187,685 | $55.0M | 0.01% | +87,510+87.4% | Added |
| Obermeyer Wood Investment Counsel, LLLP | 194,146 | $56.8M | 3.04% | +2,792+1.5% | Added |
| Epoch Investment Partners, Inc. | 196,081 | $57.4M | 0.29% | −1,463−0.7% | Reduced |
| Swiss National Bank | 198,814 | $58.2M | 0.04% | −7,800−3.8% | Reduced |
| TD Asset Management Inc | 199,385 | $58.4M | 0.05% | −1,961−1.0% | Reduced |
| Natixis Advisors, L.P. | 199,966 | $58.5M | 0.22% | +5,568+2.9% | Added |
| Natixis Investment Managers International | 204,620 | $59.9M | 3.32% | −18,225−8.2% | Reduced |
| Schroder Investment Management Group | 207,066 | $60.6M | 0.08% | +10,434+5.3% | Added |
| UBS Group AG | 211,929 | $62.0M | 0.02% | +3,715+1.8% | Added |
| Handelsbanken Fonder AB | 214,630 | $62.8M | 0.31% | +8,400+4.1% | Added |
| Dimensional Fund Advisors LP | 218,025 | $63.8M | 0.02% | −407−0.2% | Reduced |
| Millennium Management LLC | 240,743 | $70.5M | 0.08% | +215,751+863.3% | Added |
| Eagle Asset Management Inc | 238,353 | $70.8M | 0.31% | +1,462+0.6% | Added |
| Korea Investment CORP | 255,532 | $74.8M | 0.19% | −9,442−3.6% | Reduced |
| Goldman Sachs Group Inc | 260,047 | $76.1M | 0.02% | +100,388+62.9% | Added |
| Ensemble Capital Management, LLC | 260,419 | $76.2M | 5.72% | −12,988−4.8% | Reduced |
| First Republic Investment Management, Inc. | 262,080 | $76.7M | 0.17% | +3,040+1.2% | Added |
| UBS Asset Management Americas Inc | 269,473 | $78.9M | 0.03% | +939+0.3% | Added |
| APG Asset Management N.V. | 318,864 | $82.1M | 0.14% | −1,100−0.3% | Reduced |
| Raymond James & Associates | 284,837 | $83.4M | 0.07% | −18,293−6.0% | Reduced |
| Citigroup Inc | 292,070 | $85.5M | 0.08% | −918−0.3% | Reduced |
| Charles Schwab Investment Management Inc | 302,420 | $88.5M | 0.03% | +8,649+2.9% | Added |
| DF Dent & Co Inc | 303,892 | $89.0M | 0.89% | −20,263−6.3% | Reduced |
| Fayez Sarofim & Co | 354,488 | $103.8M | 0.31% | −3,402−1.0% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 376,335 | $110.2M | 0.07% | +12,161+3.3% | Added |
| California Public Employees Retirement System | 394,036 | $115.4M | 0.08% | −6,520−1.6% | Reduced |
| Legal & General Group Plc | 399,887 | $117.1M | 0.04% | −27,992−6.5% | Reduced |
| Ameriprise Financial Inc | 400,325 | $117.2M | 0.03% | −231,680−36.7% | Reduced |
| Norges Bank | 423,396 | $124.0M | 0.03% | −9,801−2.3% | Reduced |
| Geneva Capital Management LLC | 428,141 | $125.4M | 2.02% | −10,088−2.3% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 431,381 | $126.3M | 0.42% | −102,971−19.3% | Reduced |