MGTX — MeiraGTx Holdings plc
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2018-06-08.
Performance
Technicals
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Measured signals that fired on MGTX
| date | signal | measured base rate |
|---|---|---|
| 2026-08-19 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-08-05 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-06-23 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-06-18 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-04-06 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-03-26 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-18 | Forbes Alexandria PRESIDENT & CEO | Open-market sale 10b5-1 plan | 62.0K | 13.86 | 859.3K |
| 2026-07-21 | Giroux Richard CFO & COO | Open-market sale 10b5-1 plan | 56.0K | 12.51 | 700.6K |
| 2026-07-07 | Naylor Stuart CHIEF SCI OFCR, OPHTHALMOLOGY | Open-market sale 10b5-1 plan | 25.1K | 14.90 | 374.2K |
| 2026-07-07 | Naylor Stuart CHIEF SCI OFCR, OPHTHALMOLOGY | Open-market sale 10b5-1 plan | 2.5K | 13.86 | 35.3K |
| 2026-06-10 | Harris Keith R. Director | Option exercise | 75.0K | — | — |
| 2026-05-27 | Giroux Richard CFO & COO | Gift | 7.0K | 0.00 | 0 |
| 2026-05-19 | Forbes Alexandria PRESIDENT & CEO | Open-market sale 10b5-1 plan | 62.0K | 9.17 | 568.5K |
| 2026-04-21 | Giroux Richard CFO & COO | Open-market sale 10b5-1 plan | 56.0K | 10.22 | 572.3K |
| 2026-04-17 | PERCEPTIVE ADVISORS LLC Director | Grant or award | 555.6K | 9.00 | 5.0M |
| 2026-04-17 | EDELMAN JOSEPH Director | Grant or award | 555.6K | 9.00 | 5.0M |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| Sanofi | 105.6M | 12.2M |
| PERCEPTIVE ADVISORS LLC | 89.3M | 10.3M |
| Rubric Capital Management LP | 60.6M | 7.0M |
| JOHNSON & JOHNSON | 57.5M | 6.6M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 34.6M | 4.0M |
| MILLENNIUM MANAGEMENT LLC | 30.0M | 3.5M |
| BlackRock, Inc. | 27.4M | 3.2M |
| Prosight Management, LP | 22.8M | 2.6M |
| 683 Capital Management, LLC | 21.2M | 2.5M |
| Opaleye Management Inc. | 18.4M | 2.1M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Meiragtx Holdings Plc (MGTX) filed form 8-K · 2026-08-13 · SEC EDGAR
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