Meiragtx HoldingsMGTX
13F holders, Q2 2026 (June 30)158holders +25
37new positions
12sold out
5famous investors
$13.50avg. 13F price*
At the end of Q2 2026, 158 institutions reported holding Meiragtx Holdings PLC (MGTX) in their 13F filings, up 25 from Q1 2026. 37 opened new positions and 12 sold out. The largest holders were Sanofi ($164.8M), Perceptive Advisors LLC ($145.7M) and Rubric Capital Management LP ($122.9M). 5 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Meiragtx Holdings PLC
- CUSIP
- G59665102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 37 | $37.5M |
| Exits | 12 | $10.3M |
All 13F filers, Q1 2026 → Q2 2026: 16,501,273 shares bought and 5,144,554 shares sold, net +11,356,719 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 158 holders
| Sanofi | 30.86% | No change | 12,197,737 | $164.8M |
| Perceptive Advisors LLC | 2.27% | Add +4.5% | 10,786,658 | $145.7M |
| Rubric Capital Management LP | 1.13% | Add +30.0% | 9,100,000 | $122.9M |
| Johnson & Johnson | 11.23% | No change | 6,641,064 | $89.7M |
| BlackRock, Inc. | 0.00% | Add +50.2% | 4,757,178 | $64.3M |
| Adage Capital Partners Gp, L.L.C. | 0.08% | Add +10.0% | 4,400,000 | $59.4M |
| Opaleye Management Inc. | 4.34% | Add +67.2% | 3,550,000 | $48.0M |
| Millennium Management | 0.03% | Reduce -14.3% | 2,971,752 | $40.1M |
| 683 Capital Management, LLC | 2.99% | Reduce -6.1% | 2,300,000 | $31.1M |
| Woodline Partners LP | 0.06% | Add +399.5% | 1,500,135 | $20.3M |
| State Street Corp. | 0.00% | Add +84.9% | 1,393,222 | $18.8M |
| Morgan Stanley | 0.00% | Reduce -17.4% | 1,312,703 | $17.7M |
| Knoll Capital Management, LLC | 7.88% | No change | 1,250,000 | $16.9M |
| Kennedy Capital Management LLC | 0.26% | Add +28.8% | 1,105,421 | $14.9M |
| Long Focus Capital Management, LLC | 0.60% | Add +105.9% | 1,080,300 | $14.6M |
| Jacobs Levy Equity Management, Inc. | 0.05% | Add +7324.2% | 1,015,106 | $13.7M |
| D. E. Shaw & Co. | 0.01% | Add +100.5% | 852,902 | $11.5M |
| Heights Capital Management, Inc. | 2.70% | New | 850,000 | $11.5M |
| Geode Capital Management, LLC | 0.00% | Add +45.2% | 849,082 | $11.5M |
| Vanguard Portfolio Management LLC | 0.00% | Add +82.1% | 723,563 | $9.8M |
| Citadel Advisors | 0.01% | Add +460.8% | 650,489 | $8.8M |
| Erste Asset Management GmbH | 0.07% | Reduce -4.0% | 691,200 | $8.7M |
| Nuveen, LLC | 0.00% | Add +382.8% | 639,459 | $8.6M |
| J. Goldman & Co LP | 0.29% | Add +191.9% | 601,972 | $8.1M |
| Jupiter Topco LLC | 0.00% | — | 475,757 | $6.4M |
| PFM Health Sciences, LP | 0.53% | New | 455,286 | $6.2M |
| Hennion & Walsh Asset Management, Inc. | 0.16% | Add +18.9% | 421,979 | $5.7M |
| Northern Trust Corp. | 0.00% | Add +50.8% | 409,855 | $5.5M |
| Panagora Asset Management Inc. | 0.01% | New | 350,174 | $4.7M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -25.8% | 327,416 | $4.4M |
| Bank of America Corp. | 0.00% | Add +18.3% | 289,720 | $3.9M |
| Point72 Asset Management | 0.00% | Add +185.3% | 202,393 | $2.7M |
| Ghisallo Capital Management LLC | 0.07% | New | 200,000 | $2.7M |
| AQR Capital Management | 0.00% | Add +77.1% | 196,583 | $2.7M |
| Privium Fund Management B.V. | 0.49% | Reduce -7.5% | 196,112 | $2.6M |
| JPMorgan Chase & Co. | 0.00% | Add +743.2% | 205,212 | $2.6M |
| UBS Group AG | 0.00% | Reduce -39.1% | 184,574 | $2.5M |
| Squarepoint Ops LLC | 0.00% | Add +773.9% | 162,412 | $2.2M |
| Y-Intercept (Hong Kong) Ltd | 0.04% | New | 148,065 | $2.0M |
| Russell Investments Group, Ltd. | 0.00% | Add +51.6% | 147,329 | $2.0M |
| Wellington Management Group LLP | 0.00% | Add +13.1% | 142,923 | $1.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +42.2% | 142,434 | $1.9M |
| Bank of New York Mellon Corp | 0.00% | Add +38.2% | 138,352 | $1.9M |
| Blair William & Co. | 0.00% | Add +0.0% | 125,478 | $1.7M |
| Voleon Capital Management LP | 0.03% | Add +426.8% | 117,790 | $1.6M |
| Swiss National Bank | 0.00% | New | 111,400 | $1.5M |
| Barclays PLC | 0.00% | Add +159.5% | 98,955 | $1.3M |
| Invesco Ltd. | 0.00% | Add +0.1% | 94,540 | $1.3M |
| Alps Advisors Inc. | 0.01% | New | 93,186 | $1.3M |
| Prosight Management, LP | 0.21% | Reduce -96.6% | 90,000 | $1.2M |
| Aquatic Capital Management LLC | 0.04% | Add +9103.4% | 87,064 | $1.2M |
| Rhumbline Advisers | 0.00% | Add +55.8% | 86,848 | $1.2M |
| Tocqueville Asset Management L.P. | 0.01% | Add +13.9% | 77,700 | $1.0M |
| DAVENPORT & Co LLC | 0.01% | Add +4.6% | 72,370 | $978K |
| Engineers Gate Manager LP | 0.01% | Add +157.8% | 69,092 | $933K |
| Fort Sheridan Advisors LLC | 0.10% | Reduce -0.6% | 66,441 | $898K |
| Quantinno Capital Management LP | 0.00% | Add +17.3% | 66,134 | $893K |
| Trexquant Investment LP | 0.01% | Reduce -33.0% | 65,393 | $883K |
| Ameriprise Financial Inc. | 0.00% | New | 64,368 | $870K |
| Franklin Resources Inc. | 0.00% | New | 61,071 | $825K |
| California State Teachers Retirement System | 0.00% | Add +2374.5% | 60,550 | $818K |
| Raymond James Financial Inc. | 0.00% | Add +12.3% | 60,490 | $817K |
| Deutsche Bank AG | 0.00% | Add +97.2% | 59,573 | $805K |
| AlphaCentric Advisors LLC | 0.62% | Add +1.4% | 54,469 | $736K |
| Wells Fargo & Company | 0.00% | Add +224.9% | 53,909 | $728K |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +49.0% | 50,162 | $678K |
| Brown Advisory Inc. | 0.00% | No change | 50,000 | $676K |
| T. Rowe Price Associates Inc. | 0.00% | Add +57.1% | 49,380 | $668K |
| State of Wisconsin Investment Board | 0.00% | Add +375.6% | 49,200 | $665K |
| Susquehanna International Group, LLP | 0.00% | Add +31.3% | 48,474 | $655K |
| Martingale Asset Management L P | 0.02% | New | 47,854 | $647K |
| Sei Investments Co. | 0.00% | Reduce -52.2% | 47,600 | $643K |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | New | 40,339 | $545K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | New | 40,193 | $543K |
| MetLife Investment Management, LLC | 0.00% | Add +55.4% | 35,278 | $477K |
| Alliancebernstein L.P. | 0.00% | Add +0.2% | 54,690 | $474K |
| EntryPoint Capital, LLC | 0.11% | Add +8.1% | 34,510 | $466K |
| Virtus Investment Advisers, LLC | 0.11% | Add +11.6% | 34,119 | $461K |
| Legal & General Group Plc | 0.00% | Add +760.1% | 32,780 | $443K |
| Citigroup Inc. | 0.00% | Add +509.3% | 32,733 | $442K |
| Letko, Brosseau & Associates Inc. | 0.01% | No change | 32,000 | $432K |
| Axq Capital, LP | 0.05% | New | 31,189 | $421K |
| Public Employees Retirement System of Ohio | 0.00% | New | 30,700 | $415K |
| Two Sigma Investments, LP | 0.00% | New | 28,769 | $389K |
| HSBC Holdings PLC | 0.00% | Reduce -27.4% | 28,898 | $379K |
| XTX Topco Ltd | 0.00% | Reduce -35.4% | 28,007 | $378K |
| Prudential Financial Inc. | 0.00% | New | 27,995 | $378K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +28.7% | 27,684 | $374K |
| Beacon Pointe Advisors, LLC | 0.00% | No change | 26,763 | $362K |
| CreativeOne Wealth, LLC | 0.01% | No change | 26,424 | $357K |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Add +11.3% | 24,528 | $331K |
| SkyView Investment Advisors, LLC | 0.26% | No change | 24,000 | $324K |
| Diversified Trust Co. | 0.01% | New | 23,922 | $323K |
| Ieq Capital, LLC | 0.00% | New | 22,330 | $302K |
| STRS Ohio | 0.00% | Add +692.9% | 22,200 | $300K |
| New York State Common Retirement Fund | 0.00% | Add +190.0% | 21,063 | $285K |
| Creative Planning | 0.00% | Add +32.3% | 20,459 | $276K |
| CIBC Bancorp USA Inc. | 0.00% | Add +6.0% | 18,319 | $247K |
| State of New Jersey Common Pension Fund D | 0.00% | New | 17,957 | $243K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Add +52.1% | 17,732 | $240K |
"% of holder's portfolio" is MGTX's weight in each manager's 13F, not the share of Meiragtx Holdings PLC the manager owns.