Meiragtx HoldingsMGTX
13F holders, Q2 2025 (June 30)112holders −6
16new positions
22sold out
3famous investors
$6.53avg. 13F price*
At the end of Q2 2025, 112 institutions reported holding Meiragtx Holdings PLC (MGTX) in their 13F filings, down 6 from Q1 2025. 16 opened new positions and 22 sold out. The largest holders were Perceptive Advisors LLC ($82.2M), Sanofi ($79.5M) and Johnson & Johnson ($43.9M). 3 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Meiragtx Holdings PLC
- CUSIP
- G59665102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 16 | $13.0M |
| Exits | 22 | $10.8M |
All 13F filers, Q1 2025 → Q2 2025: 7,560,071 shares bought and 3,272,320 shares sold, net +4,287,751 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 112 holders
| Perceptive Advisors LLC | 3.09% | Add +0.4% | 12,626,103 | $82.2M |
| Sanofi | 45.25% | No change | 12,197,737 | $79.5M |
| Johnson & Johnson | 13.14% | No change | 6,641,064 | $43.9M |
| Adage Capital Partners Gp, L.L.C. | 0.07% | Add +7.1% | 6,034,578 | $39.3M |
| Prosight Management, LP | 7.29% | Add +24.3% | 4,587,423 | $29.9M |
| Rubric Capital Management LP | 0.39% | Add +109.8% | 3,726,451 | $24.3M |
| BlackRock, Inc. | 0.00% | Reduce -8.5% | 2,862,408 | $18.7M |
| 683 Capital Management, LLC | 1.89% | Add +4.5% | 2,690,000 | $17.5M |
| J. Goldman & Co LP | 0.42% | Add +76.4% | 2,044,574 | $13.3M |
| Knoll Capital Management, LLC | 5.79% | No change | 1,250,000 | $8.2M |
| Erste Asset Management GmbH | 0.04% | No change | 789,702 | $5.2M |
| Millennium Management | 0.00% | New | 785,181 | $5.1M |
| State Street Corp. | 0.00% | Add +5.9% | 682,202 | $4.4M |
| 22NW, LP | 2.41% | New | 586,519 | $3.8M |
| Geode Capital Management, LLC | 0.00% | Reduce -6.8% | 557,569 | $3.6M |
| Long Focus Capital Management, LLC | 0.22% | Add +110.1% | 524,745 | $3.4M |
| Morgan Stanley | 0.00% | Add +33.8% | 454,354 | $3.0M |
| Vanguard Group Inc. | 0.00% | Reduce -6.4% | 420,674 | $2.7M |
| Royal Bank of Canada | 0.00% | Add +3399.7% | 303,875 | $2.0M |
| Northern Trust Corp. | 0.00% | Reduce -12.6% | 273,935 | $1.8M |
| Bank of America Corp. | 0.00% | Add +493.8% | 266,666 | $1.7M |
| Wellington Management Group LLP | 0.00% | Add +7.5% | 222,421 | $1.5M |
| Royce & Associates LP | 0.01% | Reduce -64.3% | 217,053 | $1.4M |
| Platinum Investment Management Ltd. | 0.09% | No change | 208,308 | $1.4M |
| Citadel Advisors | 0.00% | Add +324.5% | 201,610 | $1.3M |
| Privium Fund Management B.V. | 0.23% | Add +39.3% | 163,000 | $1.1M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -61.8% | 149,766 | $977K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -27.9% | 146,513 | $955K |
| Balyasny Asset Management L.P. | 0.00% | New | 140,903 | $919K |
| Nuveen, LLC | 0.00% | Reduce -6.8% | 139,145 | $907K |
| Readystate Asset Management LP | 0.07% | Reduce -29.6% | 133,401 | $870K |
| Blair William & Co. | 0.00% | No change | 132,533 | $864K |
| Bank of New York Mellon Corp | 0.00% | Reduce -2.1% | 108,202 | $705K |
| Barclays PLC | 0.00% | Add +29.1% | 108,110 | $705K |
| AQR Capital Management | 0.00% | Add +29.8% | 106,626 | $695K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -9.7% | 104,742 | $683K |
| HRT Financial LP | 0.00% | New | 102,575 | $668K |
| Susquehanna International Group, LLP | 0.00% | Reduce -29.5% | 88,575 | $578K |
| Qube Research & Technologies Ltd | 0.00% | New | 81,231 | $530K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -48.8% | 79,392 | $518K |
| UBS Group AG | 0.00% | Add +16.1% | 72,899 | $475K |
| Fort Sheridan Advisors LLC | 0.06% | Reduce -1.9% | 68,423 | $446K |
| Hennion & Walsh Asset Management, Inc. | 0.02% | New | 64,127 | $418K |
| Rhumbline Advisers | 0.00% | Add +9.4% | 63,715 | $415K |
| Sender Co & Partners, Inc. | 0.11% | New | 60,640 | $395K |
| DAVENPORT & Co LLC | 0.00% | Reduce -1.8% | 55,200 | $360K |
| Alliancebernstein L.P. | 0.00% | Add +8.3% | 54,590 | $356K |
| Brown Advisory Inc. | 0.00% | New | 50,000 | $326K |
| Quantinno Capital Management LP | 0.00% | New | 48,893 | $319K |
| Letko, Brosseau & Associates Inc. | 0.01% | No change | 45,300 | $295K |
| Tocqueville Asset Management L.P. | 0.00% | Add +4.7% | 44,500 | $290K |
| Invesco Ltd. | 0.00% | Reduce -87.4% | 44,153 | $288K |
| CreativeOne Wealth, LLC | 0.01% | Reduce -0.1% | 36,583 | $239K |
| Kennedy Capital Management LLC | 0.01% | Add +3.8% | 35,189 | $229K |
| Franklin Resources Inc. | 0.00% | Reduce -0.1% | 32,514 | $212K |
| MetLife Investment Management, LLC | 0.00% | No change | 30,837 | $201K |
| Deutsche Bank AG | 0.00% | Reduce -43.1% | 29,124 | $190K |
| State of Wisconsin Investment Board | 0.00% | Reduce -32.1% | 26,845 | $175K |
| Squarepoint Ops LLC | 0.00% | New | 25,280 | $165K |
| Levin Capital Strategies, L.P. | 0.02% | New | 25,000 | $163K |
| JPMorgan Chase & Co. | 0.00% | Reduce -12.9% | 24,867 | $162K |
| SkyView Investment Advisors, LLC | 0.02% | No change | 24,000 | $156K |
| Wells Fargo & Company | 0.00% | Reduce -6.0% | 22,951 | $150K |
| T. Rowe Price Associates Inc. | 0.00% | Add +8.8% | 22,776 | $149K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -16.9% | 22,811 | $149K |
| Ieq Capital, LLC | 0.00% | Add +74.6% | 21,418 | $140K |
| PUREfi Wealth, LLC | 0.10% | Add +100.0% | 20,000 | $130K |
| Citigroup Inc. | 0.00% | Reduce -50.0% | 18,283 | $119K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -0.3% | 16,824 | $110K |
| Intech Investment Management LLC | 0.00% | Reduce -32.2% | 16,574 | $108K |
| China Universal Asset Management Co., Ltd. | 0.01% | Add +3.0% | 16,141 | $105K |
| CIBC Private Wealth Group LLC | 0.00% | No change | 15,000 | $98K |
| Hobbs Group Advisors, LLC | 0.03% | New | 14,213 | $93K |
| Creative Planning | 0.00% | Reduce -66.6% | 12,771 | $83K |
| Voya Investment Management LLC | 0.00% | No change | 12,609 | $82K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 12,237 | $80K |
| HSBC Holdings PLC | 0.00% | Reduce -35.3% | 11,904 | $77K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 11,661 | $76K |
| ProShare Advisors LLC | 0.00% | Reduce -15.9% | 11,546 | $75K |
| Family Manage LLC | 0.01% | No change | 10,000 | $65K |
| FNY Investment Advisers, LLC | 0.03% | New | 9,360 | $61K |
| Group One Trading LLC | 0.00% | Add +105.0% | 9,259 | $60K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +390.9% | 8,797 | $57K |
| Cwm, LLC | 0.00% | Reduce -2.8% | 8,434 | $55K |
| New York State Common Retirement Fund | 0.00% | No change | 7,263 | $47K |
| FMR LLC | 0.00% | Add +57.8% | 5,463 | $36K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 4,871 | $32K |
| BNP Paribas Financial Markets | 0.00% | Add +43.8% | 4,810 | $31K |
| Legal & General Group Plc | 0.00% | Reduce -7.3% | 4,415 | $29K |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | Add +18.7% | 3,104 | $20K |
| Simplex Trading, LLC | 0.00% | Reduce -25.4% | 3,005 | $19K |
| Versant Capital Management, Inc | 0.00% | Add +430.4% | 2,254 | $15K |
| GF Fund Management Co. LTD. | 0.00% | No change | 2,001 | $13K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Reduce -10.0% | 1,841 | $12K |
| Raymond James Financial Inc. | 0.00% | New | 1,750 | $11K |
| Amalgamated Bank | 0.00% | No change | 1,607 | $10K |
| Atlantic Union Bankshares Corp | 0.00% | New | 800 | $5K |
| Sterling Capital Management LLC | 0.00% | Add +66.1% | 490 | $3K |
| Daiwa Securities Group Inc. | 0.00% | No change | 330 | $2K |
| Osaic Holdings, Inc. | 0.00% | Add +150.0% | 250 | $2K |
"% of holder's portfolio" is MGTX's weight in each manager's 13F, not the share of Meiragtx Holdings PLC the manager owns.