Richard Giroux - 21 Jul 2026 Form 4 Insider Report for MeiraGTx Holdings plc (MGTX)

Reporting relationship: CFO & COO
Issuer ticker: MGTX
Reported as of: 21 Jul 2026
Net transaction value: -$700,560
SEC form: 4
Accepted by SEC: 21 Jul 2026, 21:12:20 UTC
Prior SEC filing: 29 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Richard Giroux

Key filing fact

Richard Giroux filed Form 4 for MeiraGTx Holdings plc (MGTX) on 21 Jul 2026.

Key facts

This page summarizes Richard Giroux's Form 4 filing for MeiraGTx Holdings plc (MGTX).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 21 Jul 2026, 21:12.

Change

Previous filing in this sequence was filed on 29 Jun 2026.
Current net transaction value: -$700,560.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001742734 Primary reporting owner

Giroux Richard

Relationship: CFO & COO
Address: 655 THIRD AVENUE, SUITE 1115, NEW YORK
Signature: /s/ Richard Giroux
Signature date: 21 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MGTX transaction

Ordinary Shares

Sale

Transaction value: $700,560
Shares: -56,000
Change %: -5.8%
Price: $12.51
Shares after: 908,530
Date: 21 Jul 2026
Ownership: Direct
Footnotes: F1, F2, F3

MGTX holding

Ordinary Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 5,152
Date: 21 Jul 2026
Ownership: By Spouse

MGTX holding

Ordinary Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 85,000
Date: 21 Jul 2026
Ownership: By Aigle Healthcare Partners III LLC

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 3 footnotes

Footnote F1

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.

Footnote F2

The price reported reflects the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $12.00 to $12.63, inclusive.

Footnote F3

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.