Massivemarkets

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

MGTX daily closelast $9.19

Alexandria Forbes · PRESIDENT & CEO

$1.9M sold

Richard Giroux · CFO & COO

$1.8M sold

Stuart Naylor · CHIEF DEV. OFFICER → CHIEF SCI OFCR, OPHTHALMOLOGY

$962.7K sold
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Open-market trades

9 filings in the last 12 months
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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Track MGTX insider trades with your agent

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for MGTX every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

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