Meiragtx HoldingsMGTX
13F holders, Q3 2025 (September 30)123holders +11
24new positions
13sold out
4famous investors
$8.23avg. 13F price*
At the end of Q3 2025, 123 institutions reported holding Meiragtx Holdings PLC (MGTX) in their 13F filings, up 11 from Q2 2025. 24 opened new positions and 13 sold out. The largest holders were Perceptive Advisors LLC ($103.8M), Sanofi ($100.4M) and Johnson & Johnson ($54.7M). 4 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Meiragtx Holdings PLC
- CUSIP
- G59665102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 24 | $7.8M |
| Exits | 13 | $5.5M |
All 13F filers, Q2 2025 → Q3 2025: 3,922,687 shares bought and 4,080,746 shares sold, net −158,059 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 123 holders
| Perceptive Advisors LLC | 3.04% | No change | 12,626,103 | $103.8M |
| Sanofi | 38.56% | No change | 12,197,737 | $100.4M |
| Johnson & Johnson | 10.85% | No change | 6,641,064 | $54.7M |
| Adage Capital Partners Gp, L.L.C. | 0.05% | Reduce -30.7% | 4,184,578 | $34.4M |
| Prosight Management, LP | 8.08% | Reduce -10.8% | 4,089,509 | $33.7M |
| Rubric Capital Management LP | 0.41% | No change | 3,726,451 | $30.7M |
| BlackRock, Inc. | 0.00% | Reduce -3.1% | 2,774,272 | $22.8M |
| 683 Capital Management, LLC | 2.06% | Reduce -2.4% | 2,625,000 | $21.6M |
| Millennium Management | 0.02% | Add +226.2% | 2,560,969 | $21.1M |
| J. Goldman & Co LP | 0.56% | Reduce -11.9% | 1,800,931 | $14.8M |
| Knoll Capital Management, LLC | 5.51% | No change | 1,250,000 | $10.3M |
| Morgan Stanley | 0.00% | Add +173.3% | 1,241,994 | $10.2M |
| Erste Asset Management GmbH | 0.06% | Reduce -10.1% | 709,702 | $5.9M |
| State Street Corp. | 0.00% | Reduce -0.2% | 681,031 | $5.6M |
| 22NW, LP | 2.27% | No change | 586,519 | $4.8M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.4% | 555,313 | $4.6M |
| Long Focus Capital Management, LLC | 0.25% | No change | 524,745 | $4.3M |
| Vanguard Group Inc. | 0.00% | Add +10.3% | 463,935 | $3.8M |
| Royal Bank of Canada | 0.00% | Reduce -1.2% | 300,343 | $2.5M |
| Northern Trust Corp. | 0.00% | Reduce -1.1% | 270,893 | $2.2M |
| Goldman Sachs Group Inc. | 0.00% | Add +77.6% | 260,219 | $2.1M |
| Citadel Advisors | 0.00% | Add +1.6% | 204,865 | $1.7M |
| Woodline Partners LP | 0.01% | New | 200,323 | $1.6M |
| Bank of America Corp. | 0.00% | Reduce -25.7% | 198,206 | $1.6M |
| D. E. Shaw & Co. | 0.00% | New | 173,202 | $1.4M |
| Privium Fund Management B.V. | 0.24% | No change | 163,000 | $1.3M |
| Wellington Management Group LLP | 0.00% | Reduce -36.3% | 141,736 | $1.2M |
| Blair William & Co. | 0.00% | No change | 132,533 | $1.1M |
| Nuveen, LLC | 0.00% | Reduce -5.8% | 131,142 | $1.1M |
| Platinum Investment Management Ltd. | 0.07% | Reduce -38.8% | 127,534 | $1.0M |
| Qube Research & Technologies Ltd | 0.00% | Add +41.6% | 115,051 | $947K |
| Hennion & Walsh Asset Management, Inc. | 0.03% | Add +70.0% | 108,981 | $897K |
| AQR Capital Management | 0.00% | Add +1.1% | 107,784 | $887K |
| Bank of New York Mellon Corp | 0.00% | Reduce -2.2% | 105,799 | $871K |
| Jane Street Group, LLC | 0.00% | New | 104,493 | $860K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -0.7% | 104,059 | $856K |
| Barclays PLC | 0.00% | Reduce -22.3% | 84,001 | $691K |
| Russell Investments Group, Ltd. | 0.00% | Add +4.3% | 82,844 | $682K |
| Stempoint Capital LP | 0.14% | New | 81,858 | $674K |
| UBS Group AG | 0.00% | Add +11.9% | 81,593 | $672K |
| AMH Equity Ltd | 0.83% | New | 80,000 | $658K |
| Jump Financial, LLC | 0.01% | New | 70,600 | $581K |
| Invesco Ltd. | 0.00% | Add +57.4% | 69,500 | $572K |
| Kennedy Capital Management LLC | 0.01% | Add +96.8% | 69,243 | $570K |
| Fort Sheridan Advisors LLC | 0.07% | Reduce -4.1% | 65,633 | $540K |
| Rhumbline Advisers | 0.00% | Reduce -4.8% | 60,679 | $499K |
| JPMorgan Chase & Co. | 0.00% | Add +142.9% | 60,394 | $497K |
| Tocqueville Asset Management L.P. | 0.01% | Add +33.0% | 59,200 | $487K |
| Quantinno Capital Management LP | 0.00% | Add +17.1% | 57,233 | $471K |
| DAVENPORT & Co LLC | 0.00% | No change | 55,200 | $454K |
| Alliancebernstein L.P. | 0.00% | No change | 54,590 | $449K |
| Brown Advisory Inc. | 0.00% | No change | 50,000 | $412K |
| Dynamic Technology Lab Private Ltd | 0.06% | New | 45,417 | $374K |
| ExodusPoint Capital Management, LP | 0.01% | New | 42,973 | $354K |
| State of Wisconsin Investment Board | 0.00% | Add +58.9% | 42,645 | $351K |
| Sender Co & Partners, Inc. | 0.13% | Reduce -32.9% | 40,668 | $335K |
| Susquehanna International Group, LLP | 0.00% | Reduce -56.4% | 38,628 | $318K |
| XTX Topco Ltd | 0.01% | New | 34,264 | $282K |
| Deutsche Bank AG | 0.00% | Add +14.4% | 33,321 | $274K |
| Letko, Brosseau & Associates Inc. | 0.00% | Reduce -29.4% | 32,000 | $263K |
| CreativeOne Wealth, LLC | 0.01% | Reduce -13.7% | 31,574 | $260K |
| SG Americas Securities, LLC | 0.00% | New | 29,992 | $247K |
| Wells Fargo & Company | 0.00% | Add +19.0% | 27,307 | $225K |
| Franklin Resources Inc. | 0.00% | Reduce -18.8% | 26,406 | $217K |
| Levin Capital Strategies, L.P. | 0.02% | No change | 25,000 | $206K |
| Gsa Capital Partners LLP | 0.02% | New | 24,660 | $203K |
| MetLife Investment Management, LLC | 0.00% | Reduce -21.5% | 24,196 | $199K |
| SkyView Investment Advisors, LLC | 0.03% | No change | 24,000 | $198K |
| Fox Run Management, L.L.C. | 0.03% | New | 22,972 | $189K |
| T. Rowe Price Associates Inc. | 0.00% | No change | 22,776 | $188K |
| Beacon Pointe Advisors, LLC | 0.00% | New | 20,763 | $171K |
| HSBC Holdings PLC | 0.00% | Add +60.8% | 19,143 | $158K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -16.5% | 19,038 | $157K |
| Creative Planning | 0.00% | Add +29.9% | 16,586 | $137K |
| Intech Investment Management LLC | 0.00% | Reduce -3.4% | 16,016 | $132K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -8.0% | 15,475 | $127K |
| CIBC Private Wealth Group LLC | 0.00% | No change | 15,000 | $123K |
| Hobbs Group Advisors, LLC | 0.04% | No change | 14,213 | $117K |
| China Universal Asset Management Co., Ltd. | 0.01% | Reduce -12.6% | 14,101 | $116K |
| Citigroup Inc. | 0.00% | Reduce -26.6% | 13,414 | $110K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 12,237 | $101K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 11,661 | $96K |
| Family Manage LLC | 0.01% | No change | 10,000 | $82K |
| BNP Paribas Financial Markets | 0.00% | Add +85.8% | 8,937 | $74K |
| Cwm, LLC | 0.00% | Reduce -6.9% | 7,850 | $65K |
| New York State Common Retirement Fund | 0.00% | No change | 7,263 | $60K |
| FNY Investment Advisers, LLC | 0.02% | Reduce -31.3% | 6,429 | $52K |
| FMR LLC | 0.00% | Add +1.1% | 5,524 | $45K |
| Rockefeller Capital Management L.P. | 0.00% | New | 5,500 | $45K |
| Legal & General Group Plc | 0.00% | No change | 4,415 | $36K |
| Arax Advisory Partners | 0.00% | New | 4,283 | $35K |
| State of Alaska, Department of Revenue | 0.00% | New | 4,030 | $33K |
| Ameritas Investment Partners, Inc. | 0.00% | Reduce -28.5% | 3,481 | $29K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | Add +0.2% | 3,110 | $26K |
| California State Teachers Retirement System | 0.00% | New | 2,595 | $21K |
| Versant Capital Management, Inc | 0.00% | Add +0.8% | 2,272 | $19K |
| GF Fund Management Co. LTD. | 0.00% | Reduce -13.5% | 1,731 | $14K |
| Amalgamated Bank | 0.00% | No change | 1,607 | $13K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -82.9% | 1,502 | $12K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Reduce -31.1% | 1,269 | $10K |
| Sterling Capital Management LLC | 0.00% | Add +66.1% | 814 | $7K |
| Atlantic Union Bankshares Corp | 0.00% | No change | 800 | $7K |
| Optiver Holding B.V. | 0.00% | New | 612 | $5K |
| Daiwa Securities Group Inc. | 0.00% | No change | 330 | $3K |
| GAMMA Investing LLC | 0.00% | Add +84.0% | 357 | $3K |
| Osaic Holdings, Inc. | 0.00% | Add +0.8% | 252 | $2K |
| Farther Finance Advisors, LLC | 0.00% | New | 211 | $2K |
| Essential Partners LLC | 0.00% | No change | 207 | $2K |
| Group One Trading LLC | 0.00% | Reduce -97.8% | 200 | $2K |
| Rothschild Investment LLC | 0.00% | Reduce -18.2% | 180 | $1K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -27.2% | 155 | $1K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 130 | $1K |
| Bell Investment Advisors, Inc | 0.00% | New | 100 | $823 |
| Parkside Financial Bank & Trust | 0.00% | No change | 75 | $618 |
| EverSource Wealth Advisors, LLC | 0.00% | No change | 72 | $593 |
| Financial Consulate, Inc. | 0.00% | New | 70 | $577 |
| PNC Financial Services Group, Inc. | 0.00% | Add +30.8% | 68 | $560 |
| Founders Capital Management | 0.00% | No change | 50 | $412 |
| Clearstead Advisors, LLC | 0.00% | New | 40 | $330 |
| True Wealth Design, LLC | 0.00% | No change | 25 | $206 |
| IFP Advisors, Inc | 0.00% | Add +12.5% | 18 | $148 |
| Allworth Financial LP | 0.00% | New | 4 | $33 |
| Larson Financial Group LLC | 0.00% | New | 3 | $25 |
"% of holder's portfolio" is MGTX's weight in each manager's 13F, not the share of Meiragtx Holdings PLC the manager owns.