GH ResearchGHRS
13F holders, Q1 2025 (March 31)36holders +5
14new positions
8sold out
1famous investor
$11.03avg. 13F price*
At the end of Q1 2025, 36 institutions reported holding GH Research PLC (GHRS) in their 13F filings, up 5 from Q4 2024. 14 opened new positions and 8 sold out. The largest holders were BVF Inc. ($97.4M), Ra Capital Management, L.P. ($76.6M) and Lynx1 Capital Management LP ($71.1M). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- GH Research PLC
- CUSIP
- G3855L106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 14 | $70.7M |
| Exits | 8 | $2.1M |
All 13F filers, Q4 2024 → Q1 2025: 14,049,238 shares bought and 2,132,158 shares sold, net +11,917,080 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 36 holders
| BVF Inc. | 3.97% | Reduce -15.1% | 8,827,712 | $97.4M |
| Ra Capital Management, L.P. | 1.28% | Add +3.9% | 6,944,648 | $76.6M |
| Lynx1 Capital Management LP | 25.45% | Add +32.6% | 6,443,940 | $71.1M |
| RTW Investments, LP | 0.93% | Add +65.3% | 5,499,769 | $60.7M |
| FMR LLC | 0.00% | Add +70.8% | 4,249,580 | $46.9M |
| Cormorant Asset Management, LP | 1.68% | Add +238.8% | 2,009,482 | $22.2M |
| Deep Track Capital, LP | 0.71% | New | 2,000,000 | $22.1M |
| Toronto Dominion Bank | 0.06% | New | 1,967,293 | $21.7M |
| Deerfield Management Company, L.P. | 0.23% | New | 925,000 | $10.2M |
| Jefferies Financial Group Inc. | 0.15% | New | 750,000 | $8.3M |
| Verition Fund Management LLC | 0.04% | Reduce -26.9% | 670,605 | $7.4M |
| 5AM Venture Management, LLC | 2.39% | No change | 572,665 | $6.3M |
| Alyeska Investment Group, L.P. | 0.02% | New | 454,975 | $5.0M |
| UBS Group AG | 0.00% | Add +2010.2% | 447,934 | $4.9M |
| Morgan Stanley | 0.00% | Add +4.4% | 277,251 | $3.1M |
| Troluce Capital Advisors LLC | 1.64% | New | 155,597 | $1.7M |
| Geode Capital Management, LLC | 0.00% | Reduce -7.3% | 67,215 | $741K |
| PEAK6 LLC | 0.03% | Add +8.5% | 64,213 | $708K |
| Walleye Capital LLC | 0.01% | New | 52,940 | $584K |
| BlackRock, Inc. | 0.00% | Reduce -6.9% | 43,971 | $485K |
| Northern Trust Corp. | 0.00% | Reduce -3.7% | 39,331 | $434K |
| AdvisorShares Investments LLC | 0.07% | Reduce -7.7% | 33,256 | $358K |
| Quadrature Capital Ltd | 0.01% | New | 31,625 | $348K |
| Boothbay Fund Management, LLC | 0.01% | New | 29,914 | $330K |
| Citadel Advisors | 0.00% | New | 15,586 | $172K |
| XTX Topco Ltd | 0.01% | New | 15,354 | $169K |
| Palumbo Wealth Management LLC | 0.05% | New | 12,869 | $142K |
| BNP Paribas Financial Markets | 0.00% | Add +1.6% | 6,410 | $71K |
| Osaic Holdings, Inc. | 0.00% | Reduce -25.3% | 3,775 | $42K |
| Tortoise Investment Management, LLC | 0.00% | No change | 1,781 | $20K |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 0.00% | No change | 2,000 | $19K |
| Wells Fargo & Company | 0.00% | No change | 1,250 | $14K |
| Royal Bank of Canada | 0.00% | Add +10.0% | 1,100 | $12K |
| Group One Trading LLC | 0.00% | New | 171 | $2K |
| Bank of America Corp. | 0.00% | Reduce -9.5% | 153 | $2K |
| Simplex Trading, LLC | 0.00% | New | 17 | $0 |
"% of holder's portfolio" is GHRS's weight in each manager's 13F, not the share of GH Research PLC the manager owns.