6-K 1 ef20062484_6k.htm 6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER

THE SECURITIES EXCHANGE ACT OF 1934

For the month of January 2026.

Commission File Number: 001-40530

GH Research PLC

(Exact name of registrant as specified in its charter)

Joshua Dawson House

Dawson Street

Dublin 2

D02 RY95

Ireland

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F

☒

Form 40-F

GH Research PLC announces the presentation of posters related to its GH001-TRD-201 and GH001-BD-202 clinical trials at the 64^th American College of Neuropsychopharmacology (ACNP) annual meeting (the “Congress”), which is scheduled to take place from January 12-15, 2026, in Paradise Island, Bahamas.

A copy of the poster to be presented by Sanjay J. Mathew during the Congress is attached hereto as Exhibit 99.1.

A copy of the poster to be presented by Lisa Harding during the Congress is attached hereto as Exhibit 99.2.

A copy of the poster to be presented by Andreas Reif during the Congress is attached hereto as Exhibit 99.3.

EXHIBIT INDEX

99.1	Poster to be presented by Sanjay J. Mathew with Title: Suicidal Ideation and Behavior in Patients with Treatment-Resistant Depression Treated with GH001

99.2	Poster to be presented by Lisa Harding with Title: Rapid Antidepressant Effects of Inhaled GH001 in Treatment-Resistant Depression: Results from a Phase 2b, Double-Blind, Randomized Controlled Trial with 6-Month Follow-Up

99.3	Poster to be presented by Andreas Reif with Title: Results of a Phase 2a Clinical Trial of Inhaled Mebufotenin (GH001) in Patients with Bipolar II Disorder and a Current Major Depressive Episode

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	GH Research PLC
Date: January 8, 2025

	By:	/s/ Julie Ryan
	Name:	Julie Ryan
	Title:	Vice President, Finance

SEC Form 6-K filed by GH Research PLC