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MeiraGTx Holdings plc (MGTX)

MeiraGTx Holdings plc (MGTX) Insider Trading

Directors, officers and holders of more than 10% of MGTX report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 154 transactions on file: 0 with code P, 10 with code S and 40 with other codes.

DateInsiderCodeShares
Oct 20, 2026Giroux RichardS Sale56,000
Oct 6, 2026Naylor StuartS Sale27,659
Sep 23, 2026SEBULSKY ALANA Award100,000
Aug 18, 2026Forbes AlexandriaS Sale62,000
Jul 21, 2026Giroux RichardS Sale56,000
Jul 7, 2026Naylor StuartS Sale2,547
Jul 7, 2026Naylor StuartS Sale25,112
Jun 25, 2026Naylor StuartA Award70,000
Jun 25, 2026Wollin Robert JA Award100,000
Jun 25, 2026Zeldin Robert KA Award100,000
Jun 25, 2026Forbes AlexandriaA Award980,000
Jun 25, 2026Giroux RichardA Award980,000
Jun 11, 2026Hukkelhoven EllenA Award60,000
Jun 11, 2026PERCEPTIVE ADVISORS LLCA Award60,000
Jun 11, 2026Yu DebraA Award60,000
Jun 11, 2026Mendoza NeilA Award66,641
Jun 11, 2026Harris Keith R.A Award106,441
Jun 11, 2026SHENK THOMAS EA Award69,662
Jun 11, 2026Seligman NicoleA Award60,000
Jun 10, 2026Harris Keith R.M Exercise75,000
Jun 10, 2026Harris Keith R.M Exercise75,000
May 27, 2026Giroux RichardG Gift7,000
May 19, 2026Forbes AlexandriaS Sale62,000
May 13, 2026Fleck Penny ReneeA Award100,000
May 13, 2026Fleck Penny ReneeA Award100,000
Apr 21, 2026Giroux RichardS Sale56,000
Apr 17, 2026PERCEPTIVE ADVISORS LLCA Award555,555
Apr 7, 2026Naylor StuartS Sale27,661
Mar 25, 2026PERCEPTIVE ADVISORS LLCA Award300,000
Mar 25, 2026PERCEPTIVE ADVISORS LLCA Award400,000
Mar 25, 2026PERCEPTIVE ADVISORS LLCD Disposition400,000
Mar 25, 2026PERCEPTIVE ADVISORS LLCD Disposition300,000
Mar 24, 2026Forbes AlexandriaS Sale62,000
Feb 21, 2026Zeldin Robert KF Tax Payment2,952
Feb 21, 2026Zeldin Robert KM Exercise7,500
Feb 21, 2026Forbes AlexandriaF Tax Payment33,048
Feb 21, 2026Forbes AlexandriaM Exercise62,500
Feb 21, 2026Giroux RichardF Tax Payment31,726
Feb 21, 2026Giroux RichardM Exercise60,000
Feb 21, 2026Naylor StuartF Tax Payment11,750
Feb 21, 2026Naylor StuartM Exercise25,000
Feb 21, 2026Forbes AlexandriaM Exercise62,500
Feb 21, 2026Giroux RichardM Exercise60,000
Feb 21, 2026Naylor StuartM Exercise25,000
Feb 21, 2026Zeldin Robert KM Exercise7,500
Feb 21, 2026Wollin Robert JM Exercise11,250
Feb 21, 2026Wollin Robert JF Tax Payment5,949
Feb 21, 2026Wollin Robert JM Exercise11,250
Jan 17, 2026Zeldin Robert KM Exercise35,000
Jan 17, 2026Zeldin Robert KF Tax Payment13,951

The full Form 4 history is on the MGTX company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.