MeiraGTx Holdings plc (MGTX) Insider Trading

Over the last 3 months, MGTX insiders made 0 open-market buys and 3 sales, a net sale of -$1.4M (SEC Form 4). Over the last 6 months, 97 institutions increased and 77 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
3
Net (3m)
-$1.4M
Insider trades by month Buys Sells
Apr
Jul
Oct
Mar
Apr
May
Context3-month price +56%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Jun 29, 2026Forbes Alexandriadirector, officer: PRESIDENT & CEOGrant980,000—
Jun 29, 2026Giroux Richardofficer: CFO & COOGrant980,000—
Jun 29, 2026Naylor Stuartofficer: CHIEF SCI OFCR, OPHTHALMOLOGYGrant70,000—
Jun 29, 2026Wollin Robert Jofficer: GENERAL COUNSEL AND SECRETARYGrant100,000—
Jun 29, 2026Zeldin Robert Kofficer: CHIEF MEDICAL OFFICERGrant100,000—
Jun 15, 2026SHENK THOMAS EdirectorGrant69,662—
Jun 15, 2026Harris Keith R.directorGrant106,441—
Jun 15, 2026Hukkelhoven EllendirectorGrant60,000—
Jun 15, 2026Yu DebradirectorGrant60,000—
Jun 15, 2026PERCEPTIVE ADVISORS LLCdirector, 10 percent owner: Grant60,000—
Jun 15, 2026Mendoza NeildirectorGrant66,641—
Jun 15, 2026Seligman NicoledirectorGrant60,000—
Jun 10, 2026Harris Keith R.directorOption75,000—
May 19, 2026Forbes Alexandriadirector, officer: PRESIDENT & CEOSell62,000$9.17
May 14, 2026Fleck Penny Reneeofficer: CHIEF DEVELOPMENT OFFICERGrant100,000$9.97
Apr 28, 2026Zeldin Robert Kofficer: CHIEF MEDICAL OFFICERTax7,814$7.73
Apr 23, 2026PERCEPTIVE ADVISORS LLCdirector, 10 percent owner: Grant555,555$9.00
Apr 23, 2026PERCEPTIVE ADVISORS LLCdirector, 10 percent owner: Grant400,000$15.00
Apr 23, 2026PERCEPTIVE ADVISORS LLCdirector, 10 percent owner: Grant300,000$20.00
Apr 21, 2026Giroux Richardofficer: CFO & COOSell56,000$10.22
Apr 7, 2026Naylor Stuartofficer: CHIEF DEV. OFFICERSell27,661$9.36
Mar 24, 2026Forbes Alexandriadirector, officer: PRESIDENT & CEOSell62,000$7.41
Feb 23, 2026Zeldin Robert Kofficer: CHIEF MEDICAL OFFICERTax2,952$7.45
Feb 23, 2026Forbes Alexandriadirector, officer: PRESIDENT & CEOTax33,048$7.45
Feb 23, 2026Zeldin Robert Kofficer: CHIEF MEDICAL OFFICEROption7,500—
Feb 23, 2026Forbes Alexandriadirector, officer: PRESIDENT & CEOOption62,500—
Feb 23, 2026Giroux Richardofficer: CFO & COOTax31,726$7.45
Feb 23, 2026Giroux Richardofficer: CFO & COOOption60,000—
Feb 23, 2026Naylor Stuartofficer: CHIEF DEV. OFFICERTax11,750$7.45
Feb 23, 2026Naylor Stuartofficer: CHIEF DEV. OFFICEROption25,000—

Source: MGTX SEC Form 4 filings, latest Jun 29, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their MGTX positions over the last 6 months (SEC Form 13F).

Increased
97
New positions
37
Reduced
77
Sold out
27
Largest moves
InstitutionActionSharesFiled
PERCEPTIVE ADVISORS LLCIncreased20.7MMay 29, 2026
SANOFIUnchanged12.2MFeb 11, 2026
SANOFIUnchanged12.2MMay 7, 2026
PERCEPTIVE ADVISORS LLCReduced10.3MFeb 17, 2026
RUBRIC CAPITAL MANAGEMENT LPIncreased7.0MMay 15, 2026
JOHNSON & JOHNSONReduced6.6MMay 13, 2026
JOHNSON & JOHNSONUnchanged6.6MMar 18, 2026
RUBRIC CAPITAL MANAGEMENT LPIncreased6.2MFeb 13, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Reduced4.0MFeb 17, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Unchanged4.0MMay 15, 2026
MILLENNIUM MANAGEMENT LLCIncreased3.5MMay 15, 2026
PROSIGHT MANAGEMENT, LPReduced3.2MFeb 13, 2026
MILLENNIUM MANAGEMENT LLCIncreased3.2MFeb 17, 2026
BLACKROCK, INC.Increased3.2MMay 13, 2026
BLACKROCK, INC.Increased3.1MFeb 12, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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