🕵️ Meiragtx Holdings PLC ($MGTX)
SEC insider & ownership activity, last 12 months · CIK 1735438 · every row links its SEC filing
Over the last 12 months insiders sold $4.4M with no open-market buying against it. Forbes Alexandria sold $2.3M through a 10b5-1 trading plan in 4 lots (Oct–Aug). Joseph Edelman trimmed 12.9% → 12.6%; Perceptive Advisors LLC trimmed 12.9% → 12.6%. No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 3 sellers, $4.4M (10 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Forbes Alexandria | 0 | – | 4 | $2.3M | Aug 18, 2026 |
| Giroux Richard | 0 | – | 3 | $1.5M | Jul 21, 2026 |
| Naylor Stuart | 0 | – | 3 | $668K | Jul 7, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Joseph Edelman | 12.6% | 13D | Apr 17, 2026 | filing ↗ | |
| Perceptive Advisors LLC | 12.6% | 13D | Apr 17, 2026 | filing ↗ | |
| Perceptive Life Sciences Master Fund, Ltd. | 12.6% | 13D | Apr 17, 2026 | filing ↗ | |
| Rubric Capital Management LP | 9.8% | 13G | Aug 14, 2026 | filing ↗ | |
| David Rosen | 9.8% | 13G | Aug 14, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Alexandria Forbes | $859K | Aug 18, 2026 | filing ↗ |
| Richard Giroux | $701K | Jul 21, 2026 | filing ↗ |
| Naylor Stuart | $369K | Jul 7, 2026 | filing ↗ |
| Alexandria Forbes | $569K | May 19, 2026 | filing ↗ |
| Richard Giroux | $573K | Apr 21, 2026 | filing ↗ |
| Naylor Stuart | $259K | Apr 7, 2026 | filing ↗ |
| Alexandria Forbes | $459K | Mar 24, 2026 | filing ↗ |
| Richard Giroux | $213K | Oct 21, 2025 | filing ↗ |
| Alexandria Forbes | $399K | Oct 7, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Aug 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 13, 2026 | filing ↗ |
| Material agreement (1.01) | Jun 30, 2026 | filing ↗ |
| Agreement terminated (1.02) | Jun 30, 2026 | filing ↗ |
| New financial obligation (2.03) | Jun 30, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Jun 30, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jun 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 30, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 11, 2026 | filing ↗ |
| Earnings (2.02) | May 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 14, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 20, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 16, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 16, 2026 | filing ↗ |
| Other events (8.01) | Apr 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 16, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 15, 2026 | filing ↗ |
| Agreement terminated (1.02) | Apr 15, 2026 | filing ↗ |
| Acquisition or disposition (2.01) | Apr 15, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 15, 2026 | filing ↗ |
| Other events (8.01) | Apr 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 15, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 25, 2026 | filing ↗ |
| Earnings (2.02) | Mar 25, 2026 | filing ↗ |
| New financial obligation (2.03) | Mar 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 25, 2026 | filing ↗ |
| Material agreement (1.01) | Dec 31, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 31, 2025 | filing ↗ |