MeiraGTx (MGTX) director converts 75,000 RSUs, boosting holdings to 200,000 shares

Rhea-AI Filing Summary

MeiraGTx Holdings plc director Harris Keith R. exercised equity awards to acquire additional stock. He converted 75,000 restricted share units into 75,000 ordinary shares through an exercise or conversion of a derivative security, with no reported purchase price.

Following this transaction, his direct holdings in ordinary shares increased to 200,000 shares. The related derivative position in these 75,000 restricted share units is now shown as fully converted, reflecting a routine compensation-related equity settlement rather than an open-market trade.

Insider Trade Summary

75,000 shares exercised/converted

Mixed 2 txns

Insider Harris Keith R.

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Share Units	75,000	$0.00	--
Exercise	Ordinary Shares	75,000	$0.00	--

Holdings After Transaction: Restricted Share Units — 0 shares (Direct, null); Ordinary Shares — 200,000 shares (Direct, null)

Footnotes (1)

1. Each restricted share unit converts into one ordinary share upon vesting. The restricted share units vest in a single annual installment upon the earlier of (i) June 12, 2026 or (ii) the day immediately prior to the date of the Issuer's annual meeting of shareholders in 2026.

Key Figures

RSUs exercised: 75,000 units Ordinary shares acquired: 75,000 shares Shares held after: 200,000 shares +1 more

4 metrics

RSUs exercised 75,000 units Restricted share units converted into ordinary shares

Ordinary shares acquired 75,000 shares Shares received from RSU conversion

Shares held after 200,000 shares Total direct ordinary shares following transaction

RSU conversion price $0.00 per unit Reported transaction price and exercise price

Key Terms

Restricted Share Units, Exercise or conversion of derivative security, Ordinary Shares, derivative security

4 terms

Restricted Share Units financial

"The restricted share units vest in a single annual installment upon the earlier of (i) June 12, 2026 or (ii) the day immediately prior to the date of the Issuer's annual meeting of shareholders in 2026."

Restricted share units (RSUs) are a promise from a company to give an employee or service provider actual shares or cash equal to the shares after certain conditions are met, typically staying with the company for a set time or hitting performance targets. Think of them like a time-locked gift card that becomes usable only after you’ve earned it. For investors, RSUs matter because they align employee incentives with company performance and can increase the number of shares outstanding over time, diluting existing ownership and affecting earnings per share.

Exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

Ordinary Shares financial

"Each restricted share unit converts into one ordinary share upon vesting."

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

derivative security financial

"transaction_action: derivative exercise/conversion"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Harris Keith R.

(Last) (First) (Middle)

655 THIRD AVENUE

SUITE 1115

(Street)

NEW YORK NEW YORK 10017

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MeiraGTx Holdings plc [ MGTX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/10/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares	06/10/2026		M		75,000	A	(1)	200,000	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Share Units	(1)	06/10/2026		M			75,000	(2)	(2)	Ordinary Shares	75,000	$0	0	D

Explanation of Responses:

1. Each restricted share unit converts into one ordinary share upon vesting.

2. The restricted share units vest in a single annual installment upon the earlier of (i) June 12, 2026 or (ii) the day immediately prior to the date of the Issuer's annual meeting of shareholders in 2026.

	/s/ Richard Giroux, Attorney-in-Fact for Keith R. Harris	06/10/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did MeiraGTx (MGTX) director Harris Keith R. do in this Form 4?

He exercised equity awards to acquire 75,000 ordinary shares. These came from converting 75,000 restricted share units, increasing his direct ordinary share holdings to 200,000 shares, with no open-market buying or selling reported in this filing.

How many MeiraGTx (MGTX) shares does Harris Keith R. hold after the transaction?

After the reported transactions, he holds 200,000 ordinary shares directly. This reflects the addition of 75,000 shares received from converting restricted share units into ordinary shares, as disclosed in the Form 4 data.

Was the MeiraGTx (MGTX) Form 4 a market buy or sell of shares?

The Form 4 shows a derivative exercise, not an open-market trade. Harris Keith R. converted 75,000 restricted share units into 75,000 ordinary shares, with no transaction marked as a market purchase or sale in the filing data.

What derivative security did Harris Keith R. exercise in MeiraGTx (MGTX)?

He exercised 75,000 restricted share units that each convert into one ordinary share upon vesting. After this conversion, the filing shows zero restricted share units remaining from this specific award and 75,000 additional ordinary shares held.

How is the MeiraGTx (MGTX) RSU award for Harris Keith R. structured?

Each restricted share unit converts into one ordinary share upon vesting. The footnotes state these RSUs vest in a single annual installment tied to a 2026 date or the day before the 2026 annual shareholder meeting, whichever occurs first.