SEC Form 4
MeiraGTx Holdings plc (MGTX) insider trading
In the 12 months to Oct 26, 2026, 3 MGTX insiders reported open-market sales of $4.7M across 9 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $4.7M
- 9 filings · 3 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 9 of 9
- All $4.7M sold was pre-arranged
Who traded MGTX, and when
- Sale
- Sale, pre-arranged (10b5-1)
MGTX daily close from Oct 27, 2025 to Oct 26, 2026, between $6.99 and $14.97, last $9.19. 9 sale and 0 purchase filings by 3 insiders, marked at their filing dates. Alexandria Forbes, PRESIDENT & CEO: sold $1.9M across 3 filings, first filed Mar 24, 2026, last Aug 18, 2026. Richard Giroux, CFO & COO: sold $1.8M across 3 filings, first filed Apr 21, 2026, last Oct 20, 2026. Stuart Naylor, CHIEF DEV. OFFICER → CHIEF SCI OFCR, OPHTHALMOLOGY: sold $962.7K across 3 filings, first filed Apr 7, 2026, last Oct 6, 2026.
Largest mark · tap a row for others
Alexandria Forbes · PRESIDENT & CEO
Sale $859,320
62,000 shares
Filed Aug 18, 2026
Pre-arranged (10b5-1) · close on filing date $13.89
Alexandria Forbes · PRESIDENT & CEO
PRESIDENT & CEO
$1.9M soldRichard Giroux · CFO & COO
CFO & COO
$1.8M soldStuart Naylor · CHIEF DEV. OFFICER → CHIEF SCI OFCR, OPHTHALMOLOGY
CHIEF DEV. OFFICER → CHIEF SCI OFCR, OPHTHALMOLOGY
$962.7K soldOpen-market trades
9 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Alexandria Forbes | PRESIDENT & CEO | $1.9M | — | 3 | 100% of sales | |
| Richard Giroux | CFO & COO | $1.8M | — | 3 | 100% of sales | |
| Stuart Naylor | CHIEF DEV. OFFICER → CHIEF SCI OFCR, OPHTHALMOLOGY | $962.7K | — | 3 | 100% of sales |
| Filed | Insider | Type | Shares | Value | Held after | Source |
|---|---|---|---|---|---|---|
traded | Richard Giroux CFO & COO | SalePre-arranged (10b5-1) | 56,000 ordinary shares | $557.2K | 852,530 | |
traded | Stuart Naylor CHIEF SCI OFCR, OPHTHALMOLOGY | SalePre-arranged (10b5-1) | 27,659 ordinary shares | $294.3K | 613,187 | |
traded | Alexandria Forbes PRESIDENT & CEO | SalePre-arranged (10b5-1) | 62,000 ordinary shares | $859.3K | 1,325,695 | |
traded | Richard Giroux CFO & COO | SalePre-arranged (10b5-1) | 56,000 ordinary shares | $700.6K | 908,530 | |
traded | Stuart Naylor CHIEF SCI OFCR, OPHTHALMOLOGY | SalePre-arranged (10b5-1) | 27,659 ordinary shares | $409.5K | 665,958 | |
traded | Alexandria Forbes PRESIDENT & CEO | SalePre-arranged (10b5-1) | 62,000 ordinary shares | $568.5K | 1,387,695 | |
traded | Richard Giroux CFO & COO | SalePre-arranged (10b5-1) | 56,000 ordinary shares | $572.3K | 971,530 | |
traded | Stuart Naylor CHIEF DEV. OFFICER | SalePre-arranged (10b5-1) | 27,661 ordinary shares | $258.9K | 668,505 | |
traded | Alexandria Forbes PRESIDENT & CEO | SalePre-arranged (10b5-1) | 62,000 ordinary shares | $459.4K | 1,449,695 |
Shares are as filed (ordinary shares or ADS); values are as converted to US$ in the filing.
GET /stocks/filings/vX/form-4?tickers=MGTX&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"MGTX"
],
"issuer_cik": "0001735438",
"owner_cik": "0001742734",
"accession_number": "0001742734-26-000022",
"form_type": "4",
"filing_date": "2026-10-20",
"period_of_report": "2026-10-20",
"issuer_name": "MeiraGTx Holdings plc",
"issuer_trading_symbol": "MGTX",
"owner_name": "Giroux Richard",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "CFO & COO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Ordinary Shares",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-20",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 56000,
"transaction_price_per_share": 9.95,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 852530,
"transaction_value": 557200,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2025."
},
{
"id": "F2",
"description": "The price reported reflects the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $9.5188 to $10.12, inclusive."
},
{
"id": "F3",
"description": "The reporting person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."
}
]
},
{
"tickers": [
"MGTX"
],
"issuer_cik": "0001735438",
"owner_cik": "0001742771",
"accession_number": "0001742771-26-000014",
"form_type": "4",
"filing_date": "2026-10-06",
"period_of_report": "2026-10-06",
"issuer_name": "MeiraGTx Holdings plc",
"issuer_trading_symbol": "MGTX",
"owner_name": "Naylor Stuart",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "CHIEF SCI OFCR, OPHTHALMOLOGY",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Ordinary Shares",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-06",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 27659,
"transaction_price_per_share": 10.64,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 613187,
"transaction_value": 294291.76,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 9, 2025."
},
{
"id": "F2",
"description": "The price reported reflects the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $10.53 to $10.88, inclusive."
},
{
"id": "F3",
"description": "The reporting person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 36 records
- Option exercises16 records
- Tax withholding15 records
- Grants and awards1 record
- Gifts3 records
- Other1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Role
- The title on each filing. Someone whose title changed shows more than one.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has MeiraGTx Holdings plc's CEO sold stock?
Yes. Alexandria Forbes (CEO) sold 186,000 shares ($1.9M) between Mar 2026 and Aug 2026, all under a pre-arranged 10b5-1 plan.
How current is MGTX’s insider data?
These are MGTX Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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