Security record · archived quarter
MGTX
MeiraGTx Holdings plc · Healthcare · Biotechnology
57Tracked holders
0Δ holders
17.52MShares held
$139.25MReported value
+0New positions
−0Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +10.4% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 63 | +4 | 21.97M | $296.37M | +8 | −4 |
| Q1 2026 | 61 | +4 | 17.36M | $150.28M | +6 | −2 |
| Q4 2025 | 57 | 0 | 17.52M | $139.25M | — | — |
| Q3 2025 | 15 | +1 | 13.50M | $111.10M | +1 | — |
| Q2 2025 | 11 | 0 | 11.90M | $77.60M | +1 | −1 |
| Q1 2025 | 8 | 0 | 7.28M | $49.35M | +1 | −1 |
| Q4 2024 | 8 | 0 | 6.77M | $41.23M | — | — |
| Q3 2024 | 7 | -1 | 6.26M | $26.11M | — | −1 |
| Q2 2024 | 8 | — | 6.33M | $26.64M | — | — |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Adage Capital Partners ✦ | 4.00M | -4.4% | $31.80M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 2 | Millennium Management ✦ | 3.18M | +24.0% | $25.25M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 3.07M | +10.7% | $24.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 3.07M | +10.7% | $24.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 3.07M | +10.7% | $24.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 3.07M | +10.7% | $24.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 3.07M | +10.7% | $24.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 3.07M | +10.7% | $24.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 3.07M | +10.7% | $24.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 3.07M | +10.7% | $24.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 3.07M | +10.7% | $24.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 3.07M | +10.7% | $24.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | Morgan Stanley ✦ | 1.83M | +47.3% | $14.54M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | Morgan Stanley ✦ | 1.83M | +47.3% | $14.54M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | Morgan Stanley ✦ | 1.83M | +47.3% | $14.54M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | Morgan Stanley ✦ | 1.83M | +47.3% | $14.54M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 17 | Morgan Stanley ✦ | 1.83M | +47.3% | $14.54M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 18 | Morgan Stanley ✦ | 1.83M | +47.3% | $14.54M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 19 | Morgan Stanley ✦ | 1.83M | +47.3% | $14.54M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | State Street Global Advisors ✦ (passive) | 729.45K | +7.1% | $5.80M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 21 | Geode Capital Management ✦ (passive) | 573.78K | +3.3% | $4.56M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 22 | Geode Capital Management ✦ (passive) | 573.78K | +3.3% | $4.56M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 23 | The Vanguard Group ✦ (passive) | 494.75K | +6.6% | $3.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 24 | The Vanguard Group ✦ (passive) | 494.75K | +6.6% | $3.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 25 | The Vanguard Group ✦ (passive) | 494.75K | +6.6% | $3.93M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 26 | Goldman Sachs Group ✦ | 456.74K | +75.5% | $3.63M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | Goldman Sachs Group ✦ | 456.74K | +75.5% | $3.63M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 28 | D. E. Shaw & Co. ✦ | 381.76K | +120.4% | $3.04M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | D. E. Shaw & Co. ✦ | 381.76K | +120.4% | $3.04M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | Northern Trust Corp | 258.21K | — | $2.05M | 0.0% | n/c | 1 | SEC ↗ |
| 31 | Northern Trust Corp | 258.21K | — | $2.05M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Northern Trust Corp | 258.21K | — | $2.05M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | UBS Group AG | 222.01K | — | $1.77M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | UBS Group AG | 222.01K | — | $1.77M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | UBS Group AG | 222.01K | — | $1.77M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | UBS Group AG | 222.01K | — | $1.77M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Bank Of America Corp /De/ | 208.45K | — | $1.66M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Bank Of America Corp /De/ | 208.45K | — | $1.66M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Bank Of America Corp /De/ | 208.45K | — | $1.66M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Bank Of America Corp /De/ | 208.45K | — | $1.66M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Citadel Advisors ✦ | 143.44K | -30.0% | $1.14M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 42 | Citadel Advisors ✦ | 143.44K | -30.0% | $1.14M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 43 | Nuveen, LLC | 131.14K | — | $1.04M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Nuveen, LLC | 131.14K | — | $1.04M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Wellington Management ✦ | 130.61K | -7.8% | $1.04M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 46 | Wellington Management ✦ | 130.61K | -7.8% | $1.04M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 47 | Wellington Management ✦ | 130.61K | -7.8% | $1.04M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 48 | Bnp Paribas Financial Markets | 128.00K | — | $1.02M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Blair William & Co/Il | 125.40K | — | $996,930 | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Charles Schwab Investment… | 111.42K | — | $885,805 | 0.0% | n/c | 1 | SEC ↗ |
| 51 | AQR Capital Management ✦ | 108.01K | +0.2% | $858,711 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 52 | AQR Capital Management ✦ | 108.01K | +0.2% | $858,711 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 53 | AQR Capital Management ✦ | 108.01K | +0.2% | $858,711 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 54 | AQR Capital Management ✦ | 108.01K | +0.2% | $858,711 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 55 | AQR Capital Management ✦ | 108.01K | +0.2% | $858,711 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 56 | Bank of New York Mellon Corp | 101.09K | — | $803,662 | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Bank of New York Mellon Corp | 101.09K | — | $803,662 | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Bank of New York Mellon Corp | 101.09K | — | $803,662 | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Jane Street Group, Llc | 98.24K | — | $781,024 | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Jane Street Group, Llc | 98.24K | — | $781,024 | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Jane Street Group, Llc | 98.24K | — | $781,024 | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Barclays Plc | 95.73K | — | $761,054 | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Barclays Plc | 95.73K | — | $761,054 | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Russell Investments Group, Ltd. | 95.72K | — | $760,964 | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Russell Investments Group, Ltd. | 95.72K | — | $760,964 | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Russell Investments Group, Ltd. | 95.72K | — | $760,964 | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Russell Investments Group, Ltd. | 95.72K | — | $760,964 | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Invesco Ltd. | 90.88K | — | $722,504 | 0.0% | n/c | 1 | SEC ↗ |
| 69 | Invesco Ltd. | 90.88K | — | $722,504 | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Invesco Ltd. | 90.88K | — | $722,504 | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Susquehanna International Group, Llp | 76.90K | — | $611,371 | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Susquehanna International Group, Llp | 76.90K | — | $611,371 | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Quantinno Capital Management LP | 60.76K | — | $483,010 | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Raymond James Financial Inc | 57.23K | — | $454,994 | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Raymond James Financial Inc | 57.23K | — | $454,994 | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Rhumbline Advisers | 56.21K | — | $446,838 | 0.0% | n/c | 1 | SEC ↗ |
| 77 | Alliancebernstein L.P. | 54.59K | — | $433,991 | 0.0% | n/c | 1 | SEC ↗ |
| 78 | Brown Advisory Inc | 50.00K | — | $397,500 | 0.0% | n/c | 1 | SEC ↗ |
| 79 | Wells Fargo & Company/Mn | 49.79K | — | $395,815 | 0.0% | n/c | 1 | SEC ↗ |
| 80 | Hsbc Holdings Plc | 47.58K | — | $377,342 | 0.0% | n/c | 1 | SEC ↗ |
| 81 | Hsbc Holdings Plc | 47.58K | — | $377,342 | 0.0% | n/c | 1 | SEC ↗ |
| 82 | State Of Wisconsin Investment Board | 42.65K | — | $339,028 | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Deutsche Bank Ag\ | 40.71K | — | $323,653 | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Deutsche Bank Ag\ | 40.71K | — | $323,653 | 0.0% | n/c | 1 | SEC ↗ |
| 85 | JPMorgan Chase ✦ | 23.95K | -80.2% | $190,371 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | JPMorgan Chase ✦ | 23.95K | -80.2% | $190,371 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 87 | JPMorgan Chase ✦ | 23.95K | -80.2% | $190,371 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 88 | T. Rowe Price ✦ | 22.78K | 0.0% | $182,000 | 0.0% | Held | 7 | SEC ↗ |
| 89 | Mitsubishi UFJ Asset Management… | 22.58K | — | $176,334 | 0.0% | n/c | 1 | SEC ↗ |
| 90 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 21.01K | — | $166,998 | 0.0% | n/c | 1 | SEC ↗ |
| 91 | Citigroup Inc | 15.55K | — | $123,639 | 0.0% | n/c | 1 | SEC ↗ |
| 92 | Citigroup Inc | 15.55K | — | $123,639 | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Creative Planning | 15.45K | — | $122,796 | 0.0% | n/c | 1 | SEC ↗ |
| 94 | Manufacturers Life Insurance… | 14.90K | — | $118,439 | 0.0% | n/c | 1 | SEC ↗ |
| 95 | Fidelity (FMR) ✦ | 13.82K | +150.3% | $109,909 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 96 | State Board Of Administration Of… | 12.24K | — | $97,284 | 0.0% | n/c | 1 | SEC ↗ |
| 97 | ProShare Advisors LLC | 11.78K | — | $93,650 | 0.0% | n/c | 1 | SEC ↗ |
| 98 | Royal Bank Of Canada | 10.88K | — | $87,000 | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Royal Bank Of Canada | 10.88K | — | $87,000 | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Royal Bank Of Canada | 10.88K | — | $87,000 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 132 holders, 67.36M shares, $581.89M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 18
Forbes Alexandria
Officer, Director · 62.00K sh · $859,320
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 14
SC 13G/A — Rubric Capital Management LP
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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