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, Q1 2023
Institutional positions in Masimo Corp as of Mar 31, 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
- 428
- +31 vs. Q4 2022
- Shares held
- 45.0M
- +592.5K (+1.3%) vs. Q4 2022
- Total value
- $8.30B
- +$1.73B (+26.4%) vs. Q4 2022
- New holders
- 68
- 134 more added
- Sold out
- 37
- 143 more reduced
8 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2023
Shares, value and share of portfolio for each institution holding Masimo Corp; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Victory Capital Management Inc | 20,192 | $3.73M | 0.00% | +10,135+100.8% | Added |
| Brookfield Asset Management Inc. | 20,246 | $3.74M | 0.01% | −66,704−76.7% | Reduced |
| KCM Investment Advisors LLC | 20,515 | $3.79M | 0.15% | +18,000+715.7% | Added |
| Treasurer of the State of North Carolina | 20,739 | $3.83M | 0.02% | +150+0.7% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 21,781 | $4.02M | 0.03% | +26+0.1% | Added |
| TD Asset Management Inc | 23,824 | $4.40M | 0.01% | +5,570+30.5% | Added |
| Public Employees Retirement System of Ohio | 23,898 | $4.41M | 0.02% | −733−3.0% | Reduced |
| Bell Asset Management Ltd | 23,954 | $4.42M | 0.81% | −27,778−53.7% | Reduced |
| Yousif Capital Management, LLC | 25,155 | $4.64M | 0.06% | +45+0.2% | Added |
| BNP Paribas Arbitrage, SA | 25,704 | $4.74M | 0.01% | −69,824−73.1% | Reduced |
| Abn Amro Investment Solutions | 26,372 | $4.87M | 0.10% | +26,372 | New |
| Westmount Partners, LLC | 26,424 | $4.88M | 2.25% | −279−1.0% | Reduced |
| Carmignac Gestion | 26,864 | $4.90M | 0.08% | −5,599−17.2% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 27,640 | $5.10M | 0.01% | +100+0.4% | Added |
| Andra AP-fonden | 28,500 | $5.26M | 0.14% | −1,200−4.0% | Reduced |
| State of New Jersey Common Pension Fund D | 28,543 | $5.27M | 0.02% | −779−2.7% | Reduced |
| State of Wisconsin Investment Board | 29,870 | $5.51M | 0.02% | +4,445+17.5% | Added |
| MetLife Investment Management | 31,083 | $5.74M | 0.04% | −791−2.5% | Reduced |
| South Dakota Investment Council | 32,047 | $5.91M | 0.13% | 00.0% | Unchanged |
| Mitsubishi UFJ Trust & Banking Corp | 32,245 | $5.95M | 0.01% | +524+1.7% | Added |
| HSBC Holdings PLC | 32,594 | $6.01M | 0.01% | +423+1.3% | Added |
| Gabelli Funds LLC | 33,000 | $6.09M | 0.05% | −200−0.6% | Reduced |
| Banco Santander, S.A. | 33,129 | $6.11M | 0.09% | −371−1.1% | Reduced |
| Shell Asset Management Co | 33,499 | $6.18M | 0.26% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 33,938 | $6.26M | 0.03% | −2,216−6.1% | Reduced |
| RK Capital Management, LLC | 33,955 | $6.27M | 1.38% | +33,955 | New |
| Moran Wealth Management, LLC | 34,181 | $6.31M | 0.24% | +4,694+15.9% | Added |
| Amalgamated Bank | 34,950 | $6.45M | 0.05% | −1,827−5.0% | Reduced |
| Castleark Management LLC | 35,240 | $6.50M | 0.32% | +35,240 | New |
| Forte Capital LLC | 35,284 | $6.51M | 1.00% | +536+1.5% | Added |
| Bessemer Group Inc | 36,386 | $6.71M | 0.02% | +5,483+17.7% | Added |
| Mutual of America Capital Management LLC | 38,939 | $7.19M | 0.09% | −815−2.1% | Reduced |
| E. Ohman J:or Asset Management AB | 39,613 | $7.31M | 0.29% | 00.0% | Unchanged |
| SG Capital Management LLC | 40,102 | $7.40M | 2.68% | +40,102 | New |
| Teacher Retirement System of Texas | 40,902 | $7.55M | 0.05% | +2,487+6.5% | Added |
| APG Asset Management N.V. | 44,669 | $7.59M | 0.02% | −7,334−14.1% | Reduced |
| SEI Investments Co | 42,005 | $7.75M | 0.01% | +17,434+71.0% | Added |
| NS Partners Ltd | 42,074 | $7.76M | 0.44% | +75+0.2% | Added |
| Great West Life Assurance Co | 42,566 | $7.86M | 0.02% | −9,923−18.9% | Reduced |
| Manufacturers Life Insurance Company, The | 42,659 | $7.87M | 0.00% | +3,509+9.0% | Added |
| First Trust Advisors LP | 43,260 | $7.98M | 0.01% | −82,061−65.5% | Reduced |
| Texas Permanent School Fund | 43,369 | $8.00M | 0.08% | +10,857+33.4% | Added |
| Barclays PLC | 43,450 | $8.02M | 0.01% | −551−1.3% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 44,349 | $8.18M | 0.02% | −546−1.2% | Reduced |
| Asset Management One Co.,Ltd. | 45,418 | $8.32M | 0.04% | +1,926+4.4% | Added |
| Susquehanna Fundamental Investments, LLC | 46,669 | $8.61M | 0.20% | −25,491−35.3% | Reduced |
| HRT Financial LP | 48,289 | $8.91M | 0.11% | +48,289 | New |
| Balyasny Asset Management LLC | 48,632 | $8.97M | 0.03% | −65,704−57.5% | Reduced |
| 1832 Asset Management L.P. | 50,000 | $9.23M | 0.02% | +50,000 | New |
| Logan Capital Management Inc | 51,639 | $9.53M | 0.46% | +129+0.3% | Added |
| Allspring Global Investments Holdings, LLC | 52,175 | $9.63M | 0.02% | +3,050+6.2% | Added |
| Federated Hermes, Inc. | 53,527 | $9.88M | 0.02% | +46,186+629.2% | Added |
| Bryn Mawr Trust Co | 54,526 | $10.1M | 0.44% | +3,822+7.5% | Added |
| State Board of Administration of Florida Retirement System | 54,839 | $10.1M | 0.02% | −700−1.3% | Reduced |
| Credit Suisse AG | 55,910 | $10.3M | 0.01% | −29,756−34.7% | Reduced |
| Public Sector Pension Investment Board | 60,000 | $11.1M | 0.08% | 00.0% | Unchanged |
| DekaBank Deutsche Girozentrale | 63,060 | $11.1M | 0.03% | +7,954+14.4% | Added |
| Harbor Spring Capital, LLC | 61,239 | $11.3M | 4.55% | 00.0% | Unchanged |
| Bridgewater Associates, LP | 61,450 | $11.3M | 0.07% | +882+1.5% | Added |
| New York State Teachers Retirement System | 61,655 | $11.4M | 0.03% | −1,800−2.8% | Reduced |
| Goldman Sachs Group Inc | 62,049 | $11.5M | 0.00% | −212,007−77.4% | Reduced |
| New York State Common Retirement Fund | 63,012 | $11.6M | 0.02% | −3,422−5.2% | Reduced |
| Bank of America Corp | 63,333 | $11.7M | 0.00% | +39,910+170.4% | Added |
| British Columbia Investment Management Corp | 64,415 | $11.9M | 0.12% | −18,500−22.3% | Reduced |
| Pictet Asset Management SA | 65,770 | $12.1M | 0.02% | +48,318+276.9% | Added |
| Royal Bank of Canada | 68,516 | $12.6M | 0.00% | +1,283+1.9% | Added |
| Amundi | 71,429 | $13.1M | 0.01% | −43,079−37.6% | Reduced |
| Alliancebernstein L.P. | 71,819 | $13.3M | 0.01% | −13,881−16.2% | Reduced |
| American International Group, Inc. | 74,783 | $13.8M | 0.09% | −708−0.9% | Reduced |
| Renaissance Technologies LLC | 81,300 | $15.0M | 0.02% | −98,400−54.8% | Reduced |
| California State Teachers Retirement System | 82,455 | $15.2M | 0.02% | −699−0.8% | Reduced |
| Ameriprise Financial Inc | 83,711 | $15.4M | 0.01% | +13,041+18.5% | Added |
| Gamco Investors, Inc. Et Al | 85,000 | $15.7M | 0.17% | 00.0% | Unchanged |
| Bank of Montreal | 90,376 | $16.7M | 0.01% | −116,853−56.4% | Reduced |
| UBS Group AG | 94,915 | $17.5M | 0.01% | −1,740−1.8% | Reduced |
| California Public Employees Retirement System | 95,707 | $17.7M | 0.02% | −14,807−13.4% | Reduced |
| Baillie Gifford & Co | 96,012 | $17.7M | 0.02% | −123−0.1% | Reduced |
| Deutsche Bank AG | 105,474 | $19.5M | 0.01% | −63,962−37.7% | Reduced |
| Arrowstreet Capital, Limited Partnership | 109,311 | $20.2M | 0.03% | +23,082+26.8% | Added |
| Invesco Ltd. | 115,820 | $21.4M | 0.01% | +14,543+14.4% | Added |
| Price T Rowe Associates Inc | 116,671 | $21.5M | 0.00% | +91,648+366.3% | Added |
| Citigroup Inc | 121,137 | $22.4M | 0.03% | +1,986+1.7% | Added |
| Cinctive Capital Management LP | 122,258 | $22.6M | 0.84% | +79,940+188.9% | Added |
| Neuberger Berman Group LLC | 125,632 | $23.2M | 0.02% | +1,693+1.4% | Added |
| Nuveen Asset Management, LLC | 128,823 | $23.8M | 0.01% | +27,616+27.3% | Added |
| Montanaro Asset Management Ltd | 133,750 | $24.7M | 3.83% | +15,000+12.6% | Added |
| Rhumbline Advisers | 149,357 | $27.6M | 0.03% | +2,366+1.6% | Added |
| Retirement Systems of Alabama | 152,388 | $28.1M | 0.12% | −551−0.4% | Reduced |
| Citadel Advisors LLC | 156,321 | $28.8M | 0.03% | +123,109+370.7% | Added |
| Rockefeller Capital Management L.P. | 159,726 | $29.5M | 0.13% | +147,839+1,243.7% | Added |
| UBS Asset Management Americas Inc | 173,976 | $32.1M | 0.02% | −1,619−0.9% | Reduced |
| Hawk Ridge Capital Management LP | 185,221 | $34.2M | 1.94% | −6,900−3.6% | Reduced |
| MIG Capital, LLC | 187,535 | $34.6M | 5.98% | +60,656+47.8% | Added |
| Principal Financial Group Inc | 195,048 | $36.0M | 0.03% | +808+0.4% | Added |
| Swiss National Bank | 197,700 | $36.5M | 0.03% | −5,100−2.5% | Reduced |
| D. E. Shaw & Co., Inc. | 199,688 | $36.9M | 0.06% | −82,684−29.3% | Reduced |
| Obermeyer Wood Investment Counsel, LLLP | 235,250 | $43.9M | 3.27% | −8,296−3.4% | Reduced |
| Dimensional Fund Advisors LP | 237,875 | $43.9M | 0.01% | +9,213+4.0% | Added |
| Two Sigma Advisers, LP | 252,100 | $46.5M | 0.12% | −106,900−29.8% | Reduced |
| First Republic Investment Management, Inc. | 262,810 | $48.5M | 0.10% | −141−0.1% | Reduced |