Form4insider filings, from the source

Company · CIK 0001735438 · SIC 2836 — Biological Products, (No Diagnostic Substances) · Nasdaq

MeiraGTx Holdings plc · MGTX

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $38.8M · 2sales $2.0M · 3net $36.8M
$10k$10k$1M$1M$100M$100MbuyssalesJun 2018Oct 2019Mar 2021Jul 2022Nov 2023Apr 2025Aug 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 18, 2026 SForm 4 →Aug 18, 9:03 pm EDTAlexandria ForbesPRESIDENT & CEO, Director62,000$13.86$859,3201,325,695−4.47%10b5-1
Jul 21, 2026 SForm 4 →Jul 21, 9:12 pm EDTRichard GirouxCFO & COO56,000$12.51$700,560908,530−5.81%10b5-1
Jul 7, 2026 SForm 4 →Jul 7, 9:05 pm EDTStuart NaylorCHIEF SCI OFCR, OPHTHALMOLOGY27,659$14.80$409,470640,846−4.14%10b5-1
Jun 10, 2026 MForm 4 →Jun 10, 8:01 pm EDTKeith R. HarrisDirector75,000——200,000—
Mar 1, 2019 PForm 4 →Mar 5, 5:22 pm ESTPERCEPTIVE LIFE SCIENCES MASTER FUND LTD +210% Owner1,304,348$13.80$18,000,0026,007,746+27.7% plan?
Jun 8, 2018 PForm 4 →Jun 12, 4:05 pm EDTPERCEPTIVE ADVISORS LLC +2Director, 10% Owner1,383,333$15.01$20,760,9954,703,398+41.7% plan?

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 23, 2026 AForm 4 →Sep 24, 9:05 pm EDTAlan SebulskyDirector100,000——100,000—
Jun 25, 2026 AForm 4 →Jun 29, 9:19 pm EDTRobert K ZeldinCHIEF MEDICAL OFFICER100,000——100,000—
Jun 25, 2026 AForm 4 →Jun 29, 9:18 pm EDTRobert J WollinGENERAL COUNSEL AND SECRETARY100,000——100,000—
Jun 25, 2026 AForm 4 →Jun 29, 9:17 pm EDTStuart NaylorCHIEF SCI OFCR, OPHTHALMOLOGY70,000——70,000—
Jun 25, 2026 AForm 4 →Jun 29, 9:17 pm EDTRichard GirouxCFO & COO980,000——980,000—
Jun 25, 2026 AForm 4 →Jun 29, 9:16 pm EDTAlexandria ForbesPRESIDENT & CEO, Director980,000——980,000—
Jun 11, 2026 AForm 4 →Jun 15, 8:56 pm EDTDebra YuDirector60,000——60,000—
Jun 11, 2026 AForm 4 →Jun 15, 8:55 pm EDTThomas E ShenkDirector69,662——69,662—
Jun 11, 2026 AForm 4 →Jun 15, 8:55 pm EDTNicole SeligmanDirector60,000——60,000—
Jun 11, 2026 AForm 4 →Jun 15, 8:54 pm EDTNeil MendozaDirector66,641——66,641—
Jun 11, 2026 AForm 4 →Jun 15, 8:53 pm EDTEllen HukkelhovenDirector60,000——60,000—
Jun 11, 2026 AForm 4 →Jun 15, 8:53 pm EDTKeith R. HarrisDirector106,441——106,441—
Jun 11, 2026 AForm 4 →Jun 15, 4:30 pm EDTPERCEPTIVE ADVISORS LLC +2Director, 10% Owner60,000——60,000—
Jun 10, 2026 MForm 4 →Jun 10, 8:01 pm EDTKeith R. HarrisDirector75,000——0—
Feb 19, 2019 AForm 4 →Feb 21, 6:09 pm ESTMartin IndykDirector50,000——50,000—
Dec 29, 2018 AForm 4 →Jan 2, 2019, 4:18 pm ESTRichard GirouxChief Operating Officer105,000——105,000—
Dec 29, 2018 AForm 4 →Jan 2, 2019, 4:18 pm ESTAlexandria ForbesPresident & CEO, Director130,000——130,000—
Dec 29, 2018 AForm 4 →Jan 2, 2019, 4:15 pm ESTKatherine BreedisChief Financial Officer10,000——10,000—
Dec 29, 2018 AForm 4 →Jan 2, 2019, 4:15 pm ESTStuart NaylorChief Development Officer, Director100,000——100,000—
Oct 2, 2018 AForm 4 →Oct 4, 4:16 pm EDTKatherine BreedisChief Financial Officer40,000——40,000—