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MeiraGTx Holdings plc

MGTX
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001735438

In the last 90 days, MeiraGTx Holdings plc insiders filed 0 open-market purchases and 3 sales; 158 institutions reported holding it in 13F filings for Q2 2026, worth $1.07B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by MeiraGTx Holdings plc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
3 filings
3 insiders, $1.97M in total
Insiders trading
3
Net value
−$1.97M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for MeiraGTx Holdings plc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for MeiraGTx Holdings plc
NameTitleLast reported holdingLast filingFilings, past year
Sebulsky AlanDirector–Sep 24, 20261
Forbes AlexandriaPRESIDENT & CEO1,325,695Aug 18, 20269
Giroux RichardCFO & COO908,530Jul 21, 20268
Naylor StuartCHIEF SCI OFCR, OPHTHALMOLOGY640,846Jul 7, 20266
Zeldin Robert KCHIEF MEDICAL OFFICER146,204Jun 29, 20264
Wollin Robert JGENERAL COUNSEL AND SECRETARY57,377Jun 29, 20265
Edelman JosephDirector, 10% Owner10,786,658IndirectJun 15, 20263
Perceptive Advisors LLCDirector, 10% Owner10,786,658IndirectJun 15, 20263
Perceptive Life Sciences Master Fund LtdDirector, 10% Owner10,786,658IndirectJun 15, 20263
Shenk Thomas EDirector–Jun 15, 20261
Seligman NicoleDirector–Jun 15, 20261
Mendoza NeilDirector–Jun 15, 20261
Harris Keith R.Director200,000Jun 15, 20262
Hukkelhoven EllenDirector–Jun 15, 20261
Yu DebraDirector–Jun 15, 20261
Fleck Penny ReneeCHIEF DEVELOPMENT OFFICER–May 14, 20261
Indyk MartinDirector35,000Jun 6, 20240
Johnson & Johnson Innovation - JJDC, Inc.10% Owner0Sep 18, 20230
Levine Arnold JDirector–Jun 9, 20220
Marcus Joel SDirector–Jun 9, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Aug 18, 2026 (view filing)9:03 PM ETAug 18Same dayForbes AlexandriaPRESIDENT & CEOSSale−62.0K$13.86−$859.3K−4.5%1.33M after10b5-1
Jul 21, 2026 (view filing)9:12 PM ETJul 21Same dayGiroux RichardCFO & COOSSale−56.0K$12.51−$700.6K−5.8%908.5K after10b5-1
Jul 7, 2026 (view filing)9:05 PM ETJul 7Same dayNaylor StuartCHIEF SCI OFCR, OPHTHALMOLOGYSSale−27.7K$14.80−$409.5K−4.1%640.8K after2 lots10b5-1
May 19, 2026 (view filing)May 19Same dayForbes AlexandriaPRESIDENT & CEOSSale−62.0K$9.17−$568.5K−4.3%1.39M after10b5-1
Apr 21, 2026 (view filing)Apr 21Same dayGiroux RichardCFO & COOSSale−56.0K$10.22−$572.3K−5.4%971.5K after10b5-1
Apr 7, 2026 (view filing)Apr 7Same dayNaylor StuartCHIEF DEV. OFFICERSSale−27.7K$9.36−$258.9K−4.0%668.5K after10b5-1
Mar 24, 2026 (view filing)Mar 24Same dayForbes AlexandriaPRESIDENT & CEOSSale−62.0K$7.41−$459.4K−4.1%1.45M after10b5-1
Oct 21, 2025 (view filing)Oct 21Same dayGiroux RichardCFO & COOSSale−24.0K$8.87−$212.9K−2.8%829.5K after10b5-1
Oct 7, 2025 (view filing)Oct 7Same dayForbes AlexandriaPRESIDENT & CEOSSale−47.5K$8.39−$398.5K−3.5%1.31M after10b5-1
Jul 22, 2025 (view filing)Jul 22Same dayGiroux RichardCFO & COOSSale−24.0K$8.52−$204.5K−2.7%853.5K after10b5-1
Jul 8, 2025 (view filing)Jul 8Same dayForbes AlexandriaPRESIDENT & CEOSSale−47.5K$7.97−$378.6K−3.4%1.36M after10b5-1
Apr 22, 2025 (view filing)Apr 22Same dayGiroux RichardCFO & COOSSale−24.0K$6.00−$144.0K−2.6%882.5K after10b5-1
Apr 8, 2025 (view filing)Apr 8Same dayForbes AlexandriaPRESIDENT & CEOSSale−47.5K$5.34−$253.7K−3.3%1.41M after10b5-1
Jan 21, 2025 (view filing)Jan 21Same dayGiroux RichardCFO & COOSSale−24.0K$6.29−$151.0K−2.7%849.9K after10b5-1
Jan 10, 2025 (view filing)Jan 7-83 daysForbes AlexandriaPRESIDENT & CEOSSale−47.5K$6.43−$305.3K−3.3%1.38M after2 lots10b5-1
Aug 14, 2024 (view filing)6:54 PM ETAug 122 daysEdelman Joseph and 2 othersDirector, 10% OwnerPPurchase+1.25M$4.00+$5.00M+11.1%12.5M after
May 15, 2023 (view filing)8:12 PM ETMay 510 daysLatePerceptive Advisors LLC and 2 othersDirector, 10% OwnerPPurchase+4.35M$5.75+$25.0M+62.7%11.3M after
Jun 6, 2022 (view filing)Jun 33 daysZeldin Robert KCHIEF MEDICAL OFFICERPPurchase+5.00K$7.90+$39.5KNew position5.00K after2 lots
May 26, 2022 (view filing)May 251 dayWollin Robert JGENERAL COUNSEL AND SECRETARYPPurchase+1.00K$7.94+$7.94KNew position1.00K after
Nov 18, 2021 (view filing)Nov 16-172 daysForbes AlexandriaPresident and CEOSSale−30.0K$19.92−$597.5K−2.7%1.08M after3 lots
Oct 21, 2021 (view filing)Oct 19-202 daysGiroux RichardCFO & COOSSale−22.0K$20.99−$461.8K−2.6%819.2K after3 lots
Oct 20, 2021 (view filing)Oct 182 daysForbes AlexandriaPresident and CEOSSale−30.0K$17.36−$520.7K−2.6%1.11M after2 lots
Oct 20, 2021 (view filing)Oct 182 daysNaylor StuartChief Development OfficerSSale−12.0K$17.95−$215.4K−2.9%402.0K after
Jul 21, 2021 (view filing)Jul 201 dayNaylor StuartChief Development OfficerSSale−9.39K$15.06−$141.4K−2.2%414.0K after
Jul 15, 2021 (view filing)Jul 132 daysNaylor StuartChief Development OfficerSSale−2.61K$15.04−$39.3K−0.6%423.4K after