FMR LLC and Abigail P. Johnson filed Amendment No. 2 to Schedule 13G with the SEC on November 5, 2026, disclosing beneficial ownership of common stock in GH Research PLC as of September 30, 2026.

Key Highlights

  • Aggregate beneficial ownership: FMR LLC reported 6,482,945 shares of GH Research PLC common stock beneficially owned, representing 9.4% of the class.
  • Sole voting power: FMR LLC holds sole voting power over 6,482,945 shares, with no shared voting power reported.
  • Sole dispositive power: Both FMR LLC and Abigail P. Johnson each report sole dispositive power over 6,482,945 shares.
  • Abigail P. Johnson: Reports 0 shares under sole or shared voting power, but 6,482,945 shares under sole dispositive power, also representing 9.4% of the class.
  • Triggering event date: The date of the event requiring this filing was September 30, 2026.
  • Third-party interest: According to the filing, one or more other persons have the right to receive or direct the receipt of dividends or sale proceeds, but no single other person's interest exceeds 5% of total outstanding common stock.

FMR LLC and Abigail P. Johnson Disclose Ownership Position in GH Research PLC

FMR LLC, a Delaware-organized holding company with principal offices at 245 Summer Street, Boston, Massachusetts 02210, filed Amendment No. 2 to Schedule 13G with respect to its holdings in GH Research PLC (NASDAQ:GHRS), an Irish company whose principal executive offices are listed at Joshua Dawson House, Dawson Street, Dublin 2. The filing was signed on November 4, 2026, and covers a triggering event dated September 30, 2026. FMR LLC is identified in the filing as a parent holding company or control person, classified as type "HC."

According to the filing, FMR LLC beneficially owns 6,482,945 shares of GH Research PLC common stock, representing 9.4% of the class, with sole voting power and sole dispositive power over all such shares and no shared voting or dispositive power reported. Abigail P. Johnson, a United States citizen, is also listed as a reporting person, classified as type "IN." She reports beneficial ownership of the same 6,482,945 shares at 9.4% of the class, with sole dispositive power over those shares but zero sole or shared voting power reported for her individually.

The filing notes that subsidiaries of FMR LLC acquired the securities and directs readers to Exhibit 99 for the identity and classification of relevant subsidiaries. The filing was signed by Stephanie J. Brown under a Power of Attorney on behalf of both FMR LLC and Abigail P. Johnson. Both reporting persons certified that the securities "were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer."

What Was Disclosed

FMR LLC and Abigail P. Johnson filed an amended Schedule 13G disclosing combined beneficial ownership of 6,482,945 shares, or 9.4%, of GH Research PLC common stock as of September 30, 2026, with no shared voting or dispositive power reported by either party.