Company · Ownership research

MeiraGTx Holdings plc MGTX

CIK 0001735438

Form 4 transactions dated Nov 1, 2023 to Nov 9, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 65 rows; the complete set is available through the API.

Insider filings on file run through Oct 20, 2026.

Some filings are submitted jointly by several insiders. The SEC form does not apportion the reported figures between them, so results include every joint filer.

Insider purchases & sales

Purchased: $5.00M
Sold: $6.73M

Nov 1, 2023 – Oct 20, 2026
Available records · partial months are marked ·

20269 of 9 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Oct 20, 2026	Giroux Richard CFO & COO	Sale10b5-1 footnote	$557.20K 56,000 shares sold	6.16% sold Direct holding	▾
Oct 6, 2026	Naylor Stuart CHIEF SCI OFCR, OPHTHALMOLOGY	Sale10b5-1 footnote	$294.29K 27,659 shares sold	4.32% sold Direct holding	▾
Aug 18, 2026	Forbes Alexandria PRESIDENT & CEO · Director	Sale10b5-1 footnote	$859.32K 62,000 shares sold	4.47% sold Direct holding	▾
Jul 21, 2026	Giroux Richard CFO & COO	Sale10b5-1 footnote	$700.56K 56,000 shares sold	5.81% sold Direct holding	▾
Jul 7, 2026	Naylor Stuart CHIEF SCI OFCR, OPHTHALMOLOGY	Sale10b5-1 footnote	$409.47K 27,659 shares sold	4.14% sold Direct holding	▾
May 19, 2026	Forbes Alexandria PRESIDENT & CEO · Director	Sale10b5-1 footnote	$568.54K 62,000 shares sold	4.28% sold Direct holding	▾
Apr 21, 2026	Giroux Richard CFO & COO	Sale10b5-1 footnote	$572.32K 56,000 shares sold	5.45% sold Direct holding	▾
Apr 7, 2026	Naylor Stuart CHIEF DEV. OFFICER	Sale10b5-1 footnote	$258.91K 27,661 shares sold	3.97% sold Direct holding	▾
Mar 24, 2026	Forbes Alexandria PRESIDENT & CEO · Director	Sale10b5-1 footnote	$459.42K 62,000 shares sold	4.10% sold Direct holding	▾

Showing 9 / 9 record groups in 2026. The complete set is available through the API.

MeiraGTx Holdings plc · MGTX

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 9 of 9 purchase / sale groups and 30 of 65 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"MGTX","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.