MeiraGTx Holdings PLC
Ownership
Ownership Structure
Who owns MeiraGTx Holdings PLC (MGTX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 56.0% of the shares are freely tradable; institutional investors hold 60.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Sanofi | 12.70 | 12,197,737 | +0.0 | 06/30/2026 |
| Perceptive Advisors LLC | 11.23 | 10,786,658 | +4.5 | 06/30/2026 |
| Rubric Capital Management LP | 9.47 | 9,100,000 | +30.0 | 06/30/2026 |
| Johnson & Johnson | 6.91 | 6,641,064 | +0.0 | 06/30/2026 |
| BlackRock Inc | 4.95 | 4,757,178 | +50.2 | 06/30/2026 |
| Adage Capital Partners Gp LLC | 4.58 | 4,400,000 | +10.0 | 06/30/2026 |
| Opaleye Management Inc | 3.70 | 3,550,000 | +67.2 | 06/30/2026 |
| Millennium Management LLC | 3.09 | 2,971,752 | -14.3 | 06/30/2026 |
| 683 Capital Management LLC | 2.55 | 2,450,000 | -4.3 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Russell 2000 ETF | 1.61 | 1,543,653 | -1.1 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Forbes Alexandria | PRESIDENT & CEO | 1,325,695 | 12,594,103 $ | Aug 18, 2026 | direct |
| Giroux Richard | CFO & COO | 852,530 | 8,099,035 $ | Oct 20, 2026 | direct |
| Naylor Stuart | CHIEF SCI OFCR, OPHTHALMOLOGY | 613,187 | 5,825,277 $ | Oct 6, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 20, 2026 | Giroux Richard | CFO & COO | Sell | 56,000 | 9.95 | 557,200 |
| Oct 6, 2026 | Naylor Stuart | CHIEF SCI OFCR, OPHTHALMOLOGY | Sell | 27,659 | 10.64 | 294,292 |
| Aug 18, 2026 | Forbes Alexandria | PRESIDENT & CEO | Sell | 62,000 | 13.86 | 859,320 |
| Jul 21, 2026 | Giroux Richard | CFO & COO | Sell | 56,000 | 12.51 | 700,560 |
| Apr 21, 2026 | Richard Giroux | CFO | Sell | 56,000 | 10.22 | 572,320 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 3, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.