Who owns GH Research PLC, from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
RA Capital Management, L.P.: 7.1% · 4,897,182 shares — Peter Kolchinsky: 7.1% · 4,897,182 shares — Rajeev Shah: 7.1% · 4,897,182 shares
Lynx1 Capital Management LP: 19.3% · 13,263,288 shares — Weston Nichols: 19.3% · 13,263,288 shares
4 more 5% stakes behind a free account
See every investor who has disclosed crossing 5% of GH Research PLC.
Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of GH Research PLC they hold. Together these 80 managers report 92.20% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| Lynx1 Capital Management LP | $357M | 13,263,288 | 41.19% | 21.38% | June 30, 2026 |
| BVF INC/IL | $233M | 8,650,158 | 5.95% | 13.95% | June 30, 2026 |
78 more institutional holders behind a free account
See every manager reporting GH Research PLC, how much of the company they hold, and how big the position is inside their own portfolio.
Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 4 funds hold 0.09% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| iShares MSCI Ireland ETF | $572K | 0.81% | 0.06% | February 28, 2026 |
| TIFF MULTI-ASSET FUND | $242K | 0.02% | 0.01% | June 30, 2026 |
2 more funds behind a free account
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