Keith R. Harris

CIK: 0001742703

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)2 (40.0%)

Derivative conversions

Awards (A)3 (60.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MGTX

MeiraGTx Holdings plc

Director

Discretionary Trading P&L

Holdings

Transaction History (5 total)

MGTX
MeiraGTx Holdings plc
Jun 11, 2026
Award(A)
Restricted Share Units
Direct
106.4K shares-
MGTX
MeiraGTx Holdings plc
Jun 10, 2026
Exercise(M)
Direct
75K shares-
MGTX
MeiraGTx Holdings plc
Jun 12, 2025
Award(A)
Restricted Share Units
Direct
75K shares-
MGTX
MeiraGTx Holdings plc
Jun 12, 2025
Award(A)
Restricted Share Units
Direct
45K shares-
MGTX
MeiraGTx Holdings plc
Jun 6, 2025
Exercise(M)
Direct
75K shares-

		Type	Shares	Price		Ownership
Jun 11, 2026	MGTX MeiraGTx Holdings plc	Award(A) Restricted Share Units	106,441	-	-	Direct
Jun 10, 2026	MGTX MeiraGTx Holdings plc	Exercise(M)	75,000	-	$0	Direct
Jun 12, 2025	MGTX MeiraGTx Holdings plc	Award(A) Restricted Share Units	75,000	-	-	Direct
Jun 12, 2025	MGTX MeiraGTx Holdings plc	Award(A) Restricted Share Units	45,000	-	-	Direct
Jun 6, 2025	MGTX MeiraGTx Holdings plc	Exercise(M)	75,000	-	-	Direct

1-5 of 5 transactions

About Harris Keith R.

Harris Keith R. (SEC CIK 0001742703) files insider reports with the SEC as Director of MeiraGTx Holdings plc (MGTX).

Signal8 holds 5 ownership filings by Harris Keith R., all Form 4s, filed between Jun 9, 2025 and Jun 15, 2026. Those filings report 5 transactions, from Jun 6, 2025 to Jun 11, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Harris Keith R.'s filings is in NEW YORK, NY.

Recent filings by Harris Keith R.

Jun 11, 2026: Grant or award of MGTX derivative securities (Form 4, code A).
Jun 10, 2026: Option exercise of MGTX shares (Form 4, code M).
Jun 12, 2025: Grants or awards of MGTX derivative securities (2 lines, Form 4, code A).
Jun 6, 2025: Option exercise of MGTX shares (Form 4, code M).

Other insiders filing for MeiraGTx Holdings plc (MGTX)

Giroux Richard, CFO & COO
Naylor Stuart, CHIEF SCI OFCR, OPHTHALMOLOGY
SEBULSKY ALAN, Director
Forbes Alexandria, PRESIDENT & CEO
Zeldin Robert K, CHIEF MEDICAL OFFICER
Wollin Robert J, GENERAL COUNSEL AND SECRETARY

How to read Form 4 transaction codes