MeiraGTx Holdings plc (MGTX) Insider Trading

Over the last 3 months, MGTX insiders made 0 open-market buys and 4 sales, a net sale of -$1.9M (SEC Form 4). Over the last 6 months, 99 institutions increased and 76 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
4
Net (3m)
-$1.9M
Insider trades by month Buys Sells
Apr
Jul
Oct
Mar
Apr
May
Context3-month price +26.7%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
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: Grant400,000$15.00
Apr 23, 2026PERCEPTIVE ADVISORS LLCdirector, 10 percent owner: Grant555,555$9.00
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 OFFICEROption7,500—
Feb 23, 2026Forbes Alexandriadirector, officer: PRESIDENT & CEOOption62,500—
Feb 23, 2026Zeldin Robert Kofficer: CHIEF MEDICAL OFFICERTax2,952$7.45
Feb 23, 2026Wollin Robert Jofficer: GENERAL COUNSEL AND SECRETARYOption11,250—
Feb 23, 2026Wollin Robert Jofficer: GENERAL COUNSEL AND SECRETARYTax5,949$7.45
Feb 23, 2026Naylor Stuartofficer: CHIEF DEV. OFFICEROption25,000—
Feb 23, 2026Naylor Stuartofficer: CHIEF DEV. OFFICERTax11,750$7.45
Feb 23, 2026Giroux Richardofficer: CFO & COOTax31,726$7.45
Feb 23, 2026Giroux Richardofficer: CFO & COOOption60,000—
Feb 23, 2026Forbes Alexandriadirector, officer: PRESIDENT & CEOTax33,048$7.45
Jan 21, 2026Wollin Robert Jofficer: GENERAL COUNSEL AND SECRETARYTax27,206$7.42
Jan 21, 2026Giroux Richardofficer: CFO & COOTax163,916$7.42
Jan 21, 2026Giroux Richardofficer: CFO & COOOption310,000—
Jan 21, 2026Naylor Stuartofficer: CHIEF DEV. OFFICERTax35,250$7.42
Jan 21, 2026Zeldin Robert Kofficer: CHIEF MEDICAL OFFICEROption35,000—
Jan 21, 2026Naylor Stuartofficer: CHIEF DEV. OFFICEROption75,000—
Jan 21, 2026Wollin Robert Jofficer: GENERAL COUNSEL AND SECRETARYOption50,000—
Jan 21, 2026Zeldin Robert Kofficer: CHIEF MEDICAL OFFICERTax13,951$7.42
Jan 21, 2026Forbes Alexandriadirector, officer: PRESIDENT & CEOOption310,000—
Jan 21, 2026Forbes Alexandriadirector, officer: PRESIDENT & CEOTax163,916$7.42
Jan 8, 2026Naylor Stuartofficer: CHIEF DEV. OFFICERTax17,625$7.73

Source: MGTX SEC Form 4 filings, latest May 19, 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
99
New positions
35
Reduced
76
Sold out
26
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 & JOHNSONUnchanged6.6MMay 13, 2026
JOHNSON & JOHNSONUnchanged6.6MMar 18, 2026
RUBRIC CAPITAL MANAGEMENT LPIncreased6.2MFeb 13, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Unchanged4.0MMay 15, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Reduced4.0MFeb 17, 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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