GH Research director reports initial share and option holdings

GH Research PLC director Michael Forer reported his initial holdings, consisting of ordinary shares and multiple option grants.

Rhea-AI Filing Summary

GH Research PLC director Michael Forer reported his initial holdings, consisting of ordinary shares and multiple option grants. He holds 45,509 ordinary shares directly. He also holds fully vested share options over 6,633, 5,508 and 5,532 ordinary shares, each with an exercise price of 0.0250 per share and expirations in 2030 and 2031.

Additional option awards cover 50,000 ordinary shares expiring in 2031 and 4,667 ordinary shares expiring in 2032, also at an exercise price of 0.0250. Some of these options are fully vested and exercisable, while others vest over time or within specified windows under the GH Research PLC Share Option Plan.

Insider Trade Summary

6 transactions reported

Mixed 6 txns

Insider Forer Michael

Role Director

Type	Security	Shares	Price	Value
holding	Share Options (Right to Buy)	--	--	--
holding	Share Options (Right to Buy)	--	--	--
holding	Share Options (Right to Buy)	--	--	--
holding	Share Options (Right to Buy)	--	--	--
holding	Share Options (Right to Buy)	--	--	--
holding	Ordinary Shares	--	--	--

Holdings After Transaction: Share Options (Right to Buy) — 72,340 contracts (Direct); Ordinary Shares — 45,509 shares (Direct)

Footnotes (5)

1. F1. The share options are fully vested and exercisable.
2. F2. The share options are fully vested and, subject to the rules of the GH Research PLC Share Option Plan, may be exercised between the second and seventh anniversary of June 22, 2024.
3. F3. The share options are fully vested and, subject to the rules of the GH Research PLC Share Option Plan, may be exercised between the second and seventh anniversary of July 6, 2024.
4. F4. The share options vested as to 25% on December 9, 2025, and the remaining share options vest in equal monthly installments for three years thereafter.
5. F5. The share options are fully vested and, subject to the rules of the GH Research PLC Share Option Plan, may be exercised between the second and seventh anniversary of September 3, 2025.

Key Figures

Direct ordinary shares held: 45,509 shares Option grant 1 underlying shares: 6,633 shares Option grant 2 underlying shares: 5,508 shares +4 more

7 metrics

Direct ordinary shares held 45,509 shares Total ordinary shares following reported holdings

Option grant 1 underlying shares 6,633 shares Share options expiring 2030-09-26

Option grant 2 underlying shares 5,508 shares Share options expiring 2031-06-22

Option grant 3 underlying shares 5,532 shares Share options expiring 2031-07-06

Largest option grant underlying shares 50,000 shares Share options expiring 2031-12-09

Additional option grant shares 4,667 shares Share options expiring 2032-09-03

Option exercise price 0.0250 per share Exercise price for all reported option grants

Key Terms

Share Options (Right to Buy), Ordinary Shares, GH Research PLC Share Option Plan, fully vested and exercisable, +1 more

5 terms

Share Options (Right to Buy) financial

"security_title: "Share Options (Right to Buy)""

Ordinary Shares financial

"underlying_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.

GH Research PLC Share Option Plan financial

"subject to the rules of the GH Research PLC Share Option Plan"

fully vested and exercisable financial

"The share options are fully vested and exercisable."

vest in equal monthly installments financial

"the remaining share options vest in equal monthly installments for three years"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did GH Research PLC (GHRS) director Michael Forer report on this Form 3?

He reported his initial ownership in GH Research PLC, including 45,509 ordinary shares held directly and several grants of share options over additional ordinary shares, all at an exercise price of 0.0250 per share with various future expiration dates.

How many GH Research PLC (GHRS) ordinary shares does Michael Forer directly hold?

He directly holds 45,509 ordinary shares of GH Research PLC. This position is separate from his share options, which give him rights to buy additional ordinary shares under specified terms and expiration dates described in the filing data and related footnotes.

What share option grants does Michael Forer have in GH Research PLC (GHRS)?

He holds multiple share option grants over 6,633, 5,508, 5,532, 50,000 and 4,667 underlying ordinary shares. Each grant carries an exercise price of 0.0250 per share and has different expiration dates between 2030 and 2032, as detailed in the filing.

Are Michael Forer’s GH Research PLC (GHRS) share options fully vested?

Several grants are fully vested and exercisable, as stated in the footnotes. One grant vested 25% on December 9, 2025, with the remaining options vesting in equal monthly installments over three years, reflecting a mix of already vested and time-based vesting awards.

When can Michael Forer exercise his GH Research PLC (GHRS) share options?

Certain options may be exercised between the second and seventh anniversaries of June 22, 2024, July 6, 2024, and September 3, 2025, subject to the GH Research PLC Share Option Plan. Other grants follow their own vesting schedules before reaching their stated expiration dates.

What is the exercise price of Michael Forer’s GH Research PLC (GHRS) share options?

Each of his reported share option grants has an exercise price of 0.0250 per underlying ordinary share. This price applies across the different grants, which cover various numbers of shares and have distinct vesting conditions and expiration dates extending through 2032.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/02/2026 - 05:35 PM Learn about SEC filing dates

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Forer Michael

(Last) (First) (Middle)

C/O GH RESEARCH PLC, JOSHUA DAWSON HOUSE

DAWSON STREET

(Street)

DUBLIN D02 RY95

(City) (State) (Zip)

IRELAND

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
GH Research PLC [ GHRS ]

3a. Foreign Trading Symbol

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

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

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

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Ordinary Shares	45,509	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Share Options (Right to Buy)	(1)	09/26/2030	Ordinary Shares	6,633	$0.025	D
Share Options (Right to Buy)	(2)	06/22/2031	Ordinary Shares	5,508	$0.025	D
Share Options (Right to Buy)	(3)	07/06/2031	Ordinary Shares	5,532	$0.025	D
Share Options (Right to Buy)	(4)	12/09/2031	Ordinary Shares	50,000	$0.025	D
Share Options (Right to Buy)	(5)	09/03/2032	Ordinary Shares	4,667	$0.025	D

Explanation of Responses:

1. The share options are fully vested and exercisable.

2. The share options are fully vested and, subject to the rules of the GH Research PLC Share Option Plan, may be exercised between the second and seventh anniversary of June 22, 2024.

3. The share options are fully vested and, subject to the rules of the GH Research PLC Share Option Plan, may be exercised between the second and seventh anniversary of July 6, 2024.

4. The share options vested as to 25% on December 9, 2025, and the remaining share options vest in equal monthly installments for three years thereafter.

5. The share options are fully vested and, subject to the rules of the GH Research PLC Share Option Plan, may be exercised between the second and seventh anniversary of September 3, 2025.

	/s/ Michael Forer	04/01/2026
	** 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 5 (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 3: SEC 1473 (03-26)