MGTX
MeiraGTx Holdings plc · Healthcare · Biotechnology
Momentum inputs (comparable managers):
holder breadth -12.5% ·
share flow -1.0% ·
net new positions -14.3%
· formula
Broad distribution: falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | +1 | 225.36K | $2.48M | +1 | n/a |
| 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 | n/a | n/a |
| Q3 2025 | 15 | +1 | 13.50M | $111.10M | +1 | n/a |
| 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 | n/a | n/a |
| Q3 2024 | 7 | -1 | 6.26M | $26.11M | n/a | −1 |
| Q2 2024 | 8 | n/a | 6.33M | $26.64M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Adage Capital Partners ✦ | 5.23M | 0.0% | $21.81M | 0.0% | Held | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 490.24K | -1.1% | $2.04M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 3 | Citadel Advisors ✦ | 200.83K | -7.9% | $837,473 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 4 | Wellington Management ✦ | 149.75K | -11.4% | $624,445 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 5 | Millennium Management ✦ | 90.56K | +45.2% | $377,644 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | D. E. Shaw & Co. ✦ | 87.64K | +26.8% | $365,438 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | T. Rowe Price ✦ | 12.72K | +7.7% | $54,000 | 0.0% | ▲ Add | 2 | 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
| Renaissance Technologies | $301,436 | was 0.0% |
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.
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)
Officer · 56.00K sh · $557,200
Officer · 27.66K sh · $294,292
Officer, Director · 62.00K sh · $859,320
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology