MeiraGTx (MGTX) CFO sells 56,000 shares under 10b5-1 plan

Rhea-AI Filing Summary

MeiraGTx Holdings plc CFO & COO Richard Giroux reported an open-market sale of 56,000 Ordinary Shares at a weighted average price of $10.22 per share. The sale was executed as a single economic event across multiple trades at prices ranging from $9.96 to $10.60.

Following this transaction, Giroux directly holds 971,530 Ordinary Shares. He also reports indirect ownership of 85,000 shares through Aigle Healthcare Partners III LLC and 5,152 shares held by his spouse. The sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on November 18, 2025.

Insider Trade Summary 10b5-1

Net Seller: 56,000 shares ($572,320)

Net Sell 3 txns

Insider Giroux Richard

Role CFO & COO

Sold 56,000 shs ($572K)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	56,000	$10.22	$572K
holding	Ordinary Shares	--	--	--
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Ordinary Shares — 971,530 shares (Direct, null); Ordinary Shares — 5,152 shares (Indirect, By Spouse)

Footnotes (1)

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2025. The price reported reflects the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $9.96 to $10.60, inclusive. The reporting person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

Key Figures

Shares sold: 56,000 shares Weighted average sale price: $10.22 per share Price range of sales: $9.96–$10.60 per share +4 more

7 metrics

Shares sold 56,000 shares Open-market sale of Ordinary Shares

Weighted average sale price $10.22 per share Average price for 56,000-share sale

Price range of sales $9.96–$10.60 per share Range of individual trade prices

Direct holdings after transaction 971,530 shares Ordinary Shares held directly by CFO after sale

Indirect holdings via Aigle Healthcare Partners III LLC 85,000 shares Ordinary Shares held indirectly through LLC

Indirect holdings via spouse 5,152 shares Ordinary Shares held indirectly by spouse

Rule 10b5-1 plan adoption date November 18, 2025 Date trading plan for the sale was adopted

Key Terms

Rule 10b5-1 trading plan, weighted average sales price, open-market sale, Ordinary Shares, +1 more

5 terms

Rule 10b5-1 trading plan regulatory

"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2025."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average sales price financial

"The price reported reflects the weighted average sales price."

open-market sale financial

"transaction_action: open-market sale"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Ordinary Shares financial

"security_title: Ordinary Shares"

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.

indirect ownership financial

"ownership_type: indirect"

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).

X

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^*

Giroux Richard

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/21/2026

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	04/21/2026		S(1)		56,000	D	$10.22(2)(3)	971,530	D
Ordinary Shares								5,152	I	By Spouse
Ordinary Shares								85,000	I	By Aigle Healthcare Partners III LLC

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

Explanation of Responses:

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2025.

2. The price reported reflects the weighted average sales price. The shares were sold in multiple transactions at prices ranging from $9.96 to $10.60, inclusive.

3. The reporting person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

	/s/ Richard Giroux	04/21/2026
	** 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) CFO Richard Giroux report in this Form 4?

He reported an open-market sale of 56,000 MeiraGTx Ordinary Shares at a weighted average price of $10.22 per share. The filing also details his remaining direct and indirect shareholdings after the transaction.

How many MeiraGTx (MGTX) shares does the CFO hold after the reported sale?

After selling 56,000 Ordinary Shares, Richard Giroux directly holds 971,530 MeiraGTx Ordinary Shares. He also reports indirect ownership of 85,000 shares via Aigle Healthcare Partners III LLC and 5,152 shares held by his spouse.

At what prices were the MeiraGTx (MGTX) shares sold by the CFO?

The 56,000 Ordinary Shares were sold at a weighted average price of $10.22 per share. Individual trades occurred at prices ranging from $9.96 to $10.60, according to the pricing footnote in the filing.

Was the MeiraGTx (MGTX) CFO’s share sale pre-planned under Rule 10b5-1?

Yes. The filing states the sales were effected under a Rule 10b5-1 trading plan adopted by Richard Giroux on November 18, 2025. Such plans pre-schedule trades, reducing the significance of trade timing decisions.

What indirect MeiraGTx (MGTX) holdings are disclosed for the CFO in this Form 4?

The filing lists 85,000 Ordinary Shares held indirectly through Aigle Healthcare Partners III LLC and 5,152 Ordinary Shares held by his spouse. These positions are reported as indirect ownership interests separate from his direct holdings.