GH Research (GHRS) executive details direct shares and option grants

Rhea-AI Filing Summary

GH Research PLC executive Halle Magnus Clemensen, Managing Director for Ireland, filed an initial ownership report showing direct holdings of 118,354 Ordinary Shares. He also holds three grants of Share Options (Right to Buy) over 17,500, 150,000 and 50,000 underlying Ordinary Shares, each with an exercise price of 0.0250 per share and expirations in 2030, 2031 and 2032, respectively. For these options, 25% vests on specified initial dates, with the remainder vesting in equal monthly installments over three years.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider Halle Magnus Clemensen

Role Managing Director, Ireland

Type	Security	Shares	Price	Value
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) — 17,500 shares (Direct); Ordinary Shares — 118,354 shares (Direct)

Footnotes (1)

1. The share options vested as to 25% on April 27, 2024, and the remaining share options vest in equal monthly installments for three years thereafter. The share options vested as to 25% on November 25, 2025, and the remaining share options vest in equal monthly installments for three years thereafter. The share options vest as to 25% on May 16, 2026, and the remaining share options vest in equal monthly installments for three years thereafter.

Key Figures

Ordinary Shares held: 118,354 shares Option grant 1 underlying shares: 17,500 shares Option grant 2 underlying shares: 150,000 shares +3 more

6 metrics

Ordinary Shares held 118,354 shares Direct ownership following reported holdings

Option grant 1 underlying shares 17,500 shares Share Options (Right to Buy), expire on 2030-04-27

Option grant 2 underlying shares 150,000 shares Share Options (Right to Buy), expire on 2031-11-25

Option grant 3 underlying shares 50,000 shares Share Options (Right to Buy), expire on 2032-05-16

Option exercise price 0.0250 per share Exercise price for all reported share options

Initial vesting portion 25% Portion of each option grant vesting on its initial vesting date

Key Terms

Share Options (Right to Buy), Ordinary Shares, exercise price, vesting, +1 more

5 terms

Share Options (Right to Buy) financial

"security_title: "Share Options (Right to Buy)" over Ordinary Shares"

Ordinary Shares financial

"underlying_security_title and direct holding of 118,354 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.

exercise price financial

"conversion_or_exercise_price of 0.0250 per share for the options"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

vesting financial

"share options vested as to 25% and remaining options vest in equal monthly installments"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

expiration date financial

"option expiration dates on 2030-04-27, 2031-11-25 and 2032-05-16"

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

Understanding Insider Trading Forms →

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^*

Halle Magnus Clemensen

(Last) (First) (Middle)

C/O GH RESEARCH PLC, JOSHUA DAWSON HOUSE

DAWSON STREET

(Street)

DUBLIN IRELAND 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)

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

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	118,354	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)	04/27/2030	Ordinary Shares	17,500	$0.025	D
Share Options (Right to Buy)	(2)	11/25/2031	Ordinary Shares	150,000	$0.025	D
Share Options (Right to Buy)	(3)	05/16/2032	Ordinary Shares	50,000	$0.025	D

Explanation of Responses:

1. The share options vested as to 25% on April 27, 2024, and the remaining share options vest in equal monthly installments for three years thereafter.

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

3. The share options vest as to 25% on May 16, 2026, and the remaining share options vest in equal monthly installments for three years thereafter.

	/s/ Magnus Halle	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)

FAQ

What does GHRS Form 3 show about Halle Magnus Clemensen’s holdings?

The Form 3 shows Halle Magnus Clemensen directly holds 118,354 Ordinary Shares of GH Research PLC. It also reports several share option grants giving him the right to buy additional Ordinary Shares at a fixed exercise price of 0.0250 per share.

How many share options does Halle Magnus Clemensen hold in GHRS?

He holds three blocks of share options over 17,500, 150,000 and 50,000 underlying Ordinary Shares. All these options carry an exercise price of 0.0250 per share and have expiration dates in 2030, 2031 and 2032, respectively.

What is the vesting schedule for Halle Magnus Clemensen’s GHRS share options?

Each option grant vests 25% on its specified initial date, then the remaining 75% vests in equal monthly installments over three years. Footnotes describe this pattern for the April 27, 2024, November 25, 2025 and May 16, 2026 grants.

What is the exercise price of the GHRS share options reported on Form 3?

All reported share options have an exercise price of 0.0250 per Ordinary Share. This means Clemensen can purchase GH Research PLC Ordinary Shares at that fixed price if and when the options are vested and exercised before their respective expiration dates.

Are the GHRS holdings on this Form 3 direct or indirect for Halle Magnus Clemensen?

The Form 3 classifies all reported positions as direct ownership. Both the 118,354 Ordinary Shares and the three share option grants are listed with direct ownership type, indicating they are held in Clemensen’s own name rather than through another entity.