MEIRAGTX HLDGS PLC (MGTX)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
Institutions report 79,212,544 shares against 96,042,996 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Sanofi | $164.8M | 12,197,737 | 30.86% | 7q | HELD |
| PERCEPTIVE ADVISORS LLC | $145.7M | 10,786,658 | 2.19% | 31q | +4.5%+$6.2M |
| Rubric Capital Management LP | $122.9M | 9,100,000 | 1.13% | 6q | +30.0%+$28.4M |
| JOHNSON & JOHNSON | $89.7M | 6,641,064 | 11.23% | 20q | HELD |
| BlackRock, Inc. | $64.3M | 4,757,178 | 0.00% | 8q | +50.2%+$21.5M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $59.4M | 4,400,000 | 0.08% | 30q | +10.0%+$5.4M |
| Opaleye Management Inc. | $48.0M | 3,550,000 | 4.34% | 3q | +67.2%+$19.3M |
| MILLENNIUM MANAGEMENT LLC | $40.1M | 2,971,752 | 0.01% | 5q | -14.3%-$6.7M |
| 683 Capital Management, LLC | $31.1M | 2,300,000 | 1.53% | 31q | -6.1%-$2.0M |
| Woodline Partners LP | $20.3M | 1,500,135 | 0.06% | 4q | +399.5%+$16.2M |
| STATE STREET CORP | $18.8M | 1,393,222 | 0.00% | 31q | +84.9%+$8.6M |
| MORGAN STANLEY | $17.7M | 1,312,703 | 0.00% | 33q | -17.4%-$3.7M |
| Knoll Capital Management, LLC | $16.9M | 1,250,000 | 7.88% | 8q | HELD |
| KENNEDY CAPITAL MANAGEMENT LLC | $14.9M | 1,105,421 | 0.26% | 10q | +28.8%+$3.3M |
| Long Focus Capital Management, LLC | $14.6M | 1,080,300 | 0.37% | 7q | +105.9%+$7.5M |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $13.7M | 1,015,106 | 0.05% | 3q | +7324.2%+$13.5M |
| D. E. Shaw & Co., Inc. | $11.5M | 852,902 | 0.01% | 4q | +100.6%+$5.8M |
| HEIGHTS CAPITAL MANAGEMENT, INC | $11.5M | 850,000 | 2.65% | new | NEW |
| GEODE CAPITAL MANAGEMENT, LLC | $11.5M | 849,082 | 0.00% | 31q | +45.2%+$3.6M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $9.8M | 723,563 | 0.00% | 2q | +82.1%+$4.4M |
| J. Goldman & Co LP | $9.3M incl. $1.1M options CALL | 601,972 | 0.24% | 10q | +191.9%+$6.1M |
| CITADEL ADVISORS LLC | $8.8M | 650,489 | 0.00% | 28q | +460.8%+$7.2M |
| Erste Asset Management GmbH | $8.7M | 691,200 | 0.07% | 19q | -4.0%-$357.4K |
| Nuveen, LLC | $8.6M | 639,459 | 0.00% | 6q | +382.8%+$6.8M |
| Jupiter Topco LLC | $6.4M | 475,757 | 0.00% | new | FIRST |
| PFM Health Sciences, LP | $6.2M | 455,286 | 0.53% | new | NEW |
| Hennion & Walsh Asset Management, Inc. | $5.7M | 421,979 | 0.16% | 5q | +18.9%+$908.2K |
| NORTHERN TRUST CORP | $5.5M | 409,855 | 0.00% | 31q | +50.7%+$1.9M |
| PANAGORA ASSET MANAGEMENT INC | $4.7M | 350,174 | 0.01% | new | NEW |
| GOLDMAN SACHS GROUP INC | $4.4M | 327,416 | 0.00% | 30q | -25.8%-$1.5M |
| BANK OF AMERICA CORP /DE/ | $3.9M | 289,720 | 0.00% | 31q | +18.3%+$604.9K |
| Point72 Asset Management, L.P. | $2.7M | 202,393 | 0.00% | 2q | +185.2%+$1.8M |
| Ghisallo Capital Management LLC | $2.7M | 200,000 | 0.05% | new | NEW |
| AQR CAPITAL MANAGEMENT LLC | $2.7M | 196,583 | 0.00% | 6q | +77.1%+$1.2M |
| Privium Fund Management B.V. | $2.6M | 196,112 | 0.49% | 10q | -7.5%-$216.2K |
| JPMORGAN CHASE & CO | $2.6M | 205,212 | 0.00% | 31q | +743.2%+$2.3M |
| UBS Group AG | $2.5M | 184,574 | 0.00% | 29q | -39.1%-$1.6M |
| Squarepoint Ops LLC | $2.2M | 162,412 | 0.00% | 2q | +773.9%+$1.9M |
| Y-Intercept (Hong Kong) Ltd | $2.0M | 148,065 | 0.04% | new | NEW |
| Russell Investments Group, Ltd. | $2.0M | 147,329 | 0.00% | 19q | +51.6%+$677.7K |
| WELLINGTON MANAGEMENT GROUP LLP | $1.9M | 142,923 | 0.00% | 11q | +13.1%+$224.2K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $1.9M | 142,434 | 0.00% | 30q | +42.2%+$570.7K |
| Bank of New York Mellon Corp | $1.9M | 138,352 | 0.00% | 30q | +38.2%+$516.8K |
| BLAIR WILLIAM & CO/IL | $1.7M | 125,478 | 0.00% | 19q | HELD |
| Voleon Capital Management LP | $1.6M | 117,790 | 0.03% | 3q | +426.8%+$1.3M |
| Swiss National Bank | $1.5M | 111,400 | 0.00% | new | NEW |
| BARCLAYS PLC | $1.3M | 98,955 | 0.00% | 30q | +159.5%+$821.6K |
| Invesco Ltd. | $1.3M | 94,540 | 0.00% | 13q | HELD |
| ALPS ADVISORS INC | $1.3M | 93,186 | 0.01% | new | NEW |
| Prosight Management, LP | $1.2M | 90,000 | 0.21% | 18q | -96.6%-$34.3M |
| Aquatic Capital Management LLC | $1.2M | 87,064 | 0.04% | 2q | +9103.4%+$1.2M |
| RHUMBLINE ADVISERS | $1.2M | 86,848 | 0.00% | 30q | +55.8%+$420.0K |
| TOCQUEVILLE ASSET MANAGEMENT L.P. | $1.0M | 77,700 | 0.01% | 19q | +13.9%+$128.3K |
| DAVENPORT & Co LLC | $977.7K | 72,370 | 0.00% | 19q | +4.6%+$42.8K |
| Engineers Gate Manager LP | $933.4K | 69,092 | 0.01% | 3q | +157.8%+$571.4K |
| Fort Sheridan Advisors LLC | $897.6K | 66,441 | 0.10% | 30q | -0.6%-$5.7K |
| Quantinno Capital Management LP | $893.5K | 66,134 | 0.00% | 5q | +17.3%+$131.5K |
| Trexquant Investment LP | $883.5K | 65,393 | 0.01% | 3q | -33.0%-$435.4K |
| AMERIPRISE FINANCIAL INC | $869.6K | 64,368 | 0.00% | new | NEW |
| FRANKLIN RESOURCES INC | $825.1K | 61,071 | 0.00% | new | NEW |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $818.0K | 60,550 | 0.00% | 4q | +2374.5%+$785.0K |
| RAYMOND JAMES FINANCIAL INC | $817.2K | 60,490 | 0.00% | 3q | +12.3%+$89.6K |
| DEUTSCHE BANK AG\ | $804.8K | 59,573 | 0.00% | 32q | +97.2%+$396.6K |
| AlphaCentric Advisors LLC | $735.9K | 54,469 | 0.62% | 3q | +1.4%+$10.5K |
| WELLS FARGO & COMPANY/MN | $728.3K | 53,909 | 0.00% | 14q | +224.9%+$504.1K |
| SIMPLEX TRADING, LLC | $689.0K CALL+PUT | options only | 0.00% | 24q | OPTIONS |
| VANGUARD FIDUCIARY TRUST CO | $677.7K | 50,162 | 0.00% | 2q | +49.0%+$222.9K |
| BROWN ADVISORY INC | $675.5K | 50,000 | 0.00% | 5q | HELD |
| PRICE T ROWE ASSOCIATES INC /MD/ | $668.0K | 49,380 | 0.00% | 9q | +57.1%+$242.8K |
| STATE OF WISCONSIN INVESTMENT BOARD | $664.7K | 49,200 | 0.00% | 29q | +375.6%+$524.9K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $654.9K | 48,474 | 0.00% | 8q | +31.3%+$156.2K |
| MARTINGALE ASSET MANAGEMENT L P | $646.5K | 47,854 | 0.02% | new | NEW |
| SEI INVESTMENTS CO | $643.1K | 47,600 | 0.00% | 2q | -52.2%-$702.9K |
| VANGUARD ASSET MANAGEMENT, Ltd | $545.0K | 40,339 | 0.00% | new | NEW |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $543.0K | 40,193 | 0.00% | new | NEW |
| MetLife Investment Management, LLC | $476.6K | 35,278 | 0.00% | 30q | +55.4%+$169.9K |
| ALLIANCEBERNSTEIN L.P. | $473.6K | 54,690 | 0.00% | 29q | HELD |
| EntryPoint Capital, LLC | $466.2K | 34,510 | 0.11% | 2q | +8.1%+$34.8K |
| Virtus Investment Advisers, LLC | $460.9K | 34,119 | 0.11% | 3q | +11.6%+$47.9K |
| Legal & General Group Plc | $442.5K | 32,780 | 0.00% | 31q | +760.1%+$391.1K |
| CITIGROUP INC | $442.2K | 32,733 | 0.00% | 31q | +509.3%+$369.6K |
| LETKO, BROSSEAU & ASSOCIATES INC | $432.3K | 32,000 | 0.01% | 12q | HELD |
| AXQ CAPITAL, LP | $421.4K | 31,189 | 0.05% | new | NEW |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $414.8K | 30,700 | 0.00% | new | NEW |
| TWO SIGMA INVESTMENTS, LP | $388.7K | 28,769 | 0.00% | new | NEW |
| HSBC HOLDINGS PLC | $379.1K | 28,898 | 0.00% | 10q | -27.4%-$142.9K |
| XTX Topco Ltd | $378.4K | 28,007 | 0.00% | 4q | -35.4%-$207.4K |
| PRUDENTIAL FINANCIAL INC | $378.2K | 27,995 | 0.00% | new | NEW |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $374.0K | 27,684 | 0.00% | 9q | +28.7%+$83.3K |
| Beacon Pointe Advisors, LLC | $361.6K | 26,763 | 0.00% | 4q | HELD |
| CreativeOne Wealth, LLC | $357.0K | 26,424 | 0.01% | 14q | HELD |
| Mitsubishi UFJ Asset Management Co., Ltd. | $331.4K | 24,528 | 0.00% | 3q | +11.3%+$33.7K |
| SkyView Investment Advisors, LLC | $324.0K | 24,000 | 0.25% | 9q | HELD |
| DIVERSIFIED TRUST CO | $323.2K | 23,922 | 0.01% | new | NEW |
| IEQ CAPITAL, LLC | $301.7K | 22,330 | 0.00% | new | NEW |
| STRS OHIO | $299.9K | 22,200 | 0.00% | 3q | +692.9%+$262.1K |
| NEW YORK STATE COMMON RETIREMENT FUND | $284.6K | 21,063 | 0.00% | 31q | +190.0%+$186.4K |
| Creative Planning | $276.4K | 20,459 | 0.00% | 6q | +32.3%+$67.5K |
| CIBC Bancorp USA Inc. | $247.5K | 18,319 | 0.00% | 2q | +6.0%+$14.1K |
| State of New Jersey Common Pension Fund D | $242.6K | 17,957 | 0.00% | new | NEW |
Showing the largest 100 of 159 reported holders.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-09-23 | 2026-09-22 | Directors or officers departed or appointed | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-18 | Forbes Alexandria | PRESIDENT & CEO | Sold | 62,000 | $859.3K |
| 2026-07-21 | Giroux Richard | CFO & COO | Sold | 56,000 | $700.6K |
| 2026-05-19 | Forbes Alexandria | PRESIDENT & CEO | Sold | 62,000 | $568.5K |
| 2026-10-20 | Giroux Richard | CFO & COO | Sold | 56,000 | $557.2K |
| 2026-07-07 | Naylor Stuart | CHIEF SCI OFCR, OPHTHALMOLOGY | Sold | 27,659 | $409.5K ×2 |
| 2026-10-06 | Naylor Stuart | CHIEF SCI OFCR, OPHTHALMOLOGY | Sold | 27,659 | $294.3K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 30 | $83.7M | 7,606,213 | 6 | 12 | 3 | 0.0% |
| Q2 2026 | 159 | $1.1B | 79,212,544 | 37 | 78 | 22 | 0.2% |
| Q1 2026 | 135 | $583.7M | 67,387,836 | 18 | 46 | 38 | 0.1% |
| Q4 2025 | 133 | $519.1M | 65,206,213 | 18 | 43 | 33 | 0.1% |
| Q3 2025 | 124 | $529.4M | 64,175,995 | 25 | 28 | 37 | 0.3% |
| Q2 2025 | 112 | $422.1M | 64,577,527 | 16 | 35 | 36 | 0.1% |
| Q1 2025 | 118 | $408.4M | 59,999,048 | 23 | 42 | 29 | 0.4% |
| Q4 2024 | 102 | $355.8M | 58,134,853 | 11 | 44 | 20 | 0.6% |
| Q3 2024 | 98 | $190.3M | 45,563,982 | 11 | 35 | 27 | 0.2% |
| Q2 2024 | 93 | $172.1M | 40,829,629 | 9 | 36 | 27 | 0.2% |
| Q1 2024 | 96 | $242.1M | 39,848,983 | 19 | 29 | 28 | 0.1% |
| Q4 2023 | 88 | $280.4M | 39,700,000 | 15 | 30 | 22 | 0.6% |
| Q3 2023 | 77 | $186.0M | 37,792,047 | 7 | 16 | 23 | 0.3% |
| Q2 2023 | 78 | $254.7M | 37,877,190 | 6 | 31 | 21 | 0.2% |
| Q1 2023 | 90 | $149.1M | 28,760,928 | 9 | 32 | 27 | 0.3% |
| Q4 2022 | 98 | $193.9M | 29,614,272 | 13 | 35 | 28 | 0.4% |
| Q3 2022 | 95 | $3.0B | 355,371,417 | 7 | 29 | 27 | 0.0% |
| Q2 2022 | 102 | $2.7B | 355,811,487 | 12 | 31 | 33 | 0.0% |
| Q1 2022 | 99 | $4.4B | 320,950,287 | 17 | 27 | 30 | 0.0% |
| Q4 2021 | 96 | $3.8B | 162,556,461 | 29 | 28 | 26 | 0.1% |
| Q3 2021 | 76 | $461.0M | 34,952,065 | 5 | 20 | 30 | 0.1% |
| Q2 2021 | 77 | $536.5M | 34,584,644 | 12 | 31 | 22 | 0.1% |
| Q1 2021 | 77 | $467.3M | 32,815,485 | 4 | 29 | 27 | 0.1% |
| Q4 2020 | 89 | $510.6M | 33,721,484 | 17 | 37 | 18 | 0.0% |
| Q3 2020 | 82 | $384.7M | 29,052,392 | 16 | 18 | 32 | 0.0% |
| Q2 2020 | 76 | $371.7M | 29,682,421 | 6 | 36 | 20 | 0.0% |
| Q1 2020 | 81 | $452.0M | 33,610,164 | 13 | 29 | 23 | 0.0% |
| Q4 2019 | 83 | $482.4M | 24,097,949 | 19 | 37 | 14 | 0.0% |
| Q3 2019 | 79 | $340.9M | 21,375,749 | 22 | 34 | 17 | 0.0% |
| Q2 2019 | 66 | $461.1M | 17,400,955 | 23 | 24 | 8 | 0.0% |
| Q1 2019 | 52 | $286.4M | 16,681,500 | 22 | 21 | 3 | 0.0% |
| Q4 2018 | 36 | $69.8M | 7,237,985 | 2 | 1 | 2 | 0.0% |
