Company: GHRS
Filing Date: 2025-06-20
Form Type: 6-K
Source: 0001140361-25-023162
Chunk: 0

Company: GH Research PLC
Filing Date: 2025-06-20
Form: 6-K
Chunk 0
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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 June, 2025. 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 |

INFORMATION CONTAINED IN THIS REPORT ON FORM 6-K On June 20, 2025, GH Research PLC (the “Company”) announced that, in June, it submitted its complete response to the previously announced clinical hold of its Investigational New Drug Application (“IND”) for GH001 to the U.S. Food and Drug Administration (“FDA”). A copy of the press release is exhibited hereto as Exhibit 99.1. The fact that this press release is being made available and furnished herewith should not be deemed an admission as to the materiality of any information contained in the materials. The information contained in the press release is being provided as of June 20, 2025, and the Company does not undertake any obligation to update the press release in the future or to update forward-looking statements to reflect subsequent actual results.

1 EXHIBIT INDEX

2 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.

| Date: June 20, 2025 | GH Research PLC |                         |
|:--------------------|:----------------|:------------------------|
|                     | By:             | /s/ Julie Ryan          |
|                     | Name:           | Julie Ryan              |
|                     | Title:          | Vice President, Finance |

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