GH Research PLC
GHRS- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001855129
No open-market purchases or sales by GH Research PLC insiders were filed in the last 90 days; 63 institutions reported holding it in 13F filings for Q2 2026, worth $1.38B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in GH Research PLC as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 54
- +2 vs. Q4 2025
- Shares held
- 47.6M
- +987.2K (+2.1%) vs. Q4 2025
- Total value
- $668.5M
- +$77.2M (+13.1%) vs. Q4 2025
- New holders
- 12
- 19 more added
- Sold out
- 10
- 13 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting GHRS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 63 | $1.38B |
| Q1 2026 | 54 | $668.5M |
| Q4 2025 | 53 | $591.4M |
| Q3 2025 | 47 | $618.1M |
| Q2 2025 | 38 | $530.9M |
| Q1 2025 | 36 | $470.1M |
| Q4 2024 | 31 | $214.9M |
| Q3 2024 | 28 | $204.2M |
| Q2 2024 | 28 | $354.8M |
| Q1 2024 | 32 | $315.5M |
| Q4 2023 | 35 | $171.7M |
| Q3 2023 | 29 | $291.5M |
| Q2 2023 | 34 | $351.6M |
| Q1 2023 | 29 | $237.2M |
| Q4 2022 | 32 | $299.5M |
| Q3 2022 | 34 | $367.2M |
| Q2 2022 | 35 | $325.0M |
| Q1 2022 | 33 | $587.1M |
| Q4 2021 | 30 | $701.0M |
| Q3 2021 | 30 | $625.2M |
| Q2 2021 | 34 | $593.7M |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding GH Research PLC; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Lynx1 Capital Management LP | 10,763,288 | $151.3M | 23.92% | +356,713+3.4% | Added |
| BVF Inc | 8,650,158 | $121.6M | 3.87% | −177,554−2.0% | Reduced |
| Ra Capital Management, L.P. | 7,676,697 | $107.9M | 1.14% | 00.0% | Unchanged |
| RTW Investments, LP | 5,933,815 | $83.4M | 0.83% | 00.0% | Unchanged |
| FMR LLC | 5,136,045 | $72.2M | 0.00% | 00.0% | Unchanged |
| Avoro Capital Advisors LLC | 1,800,000 | $25.3M | 0.25% | 00.0% | Unchanged |
| Toronto Dominion Bank | 1,397,873 | $19.7M | 0.04% | +1,397,873 | New |
| Troluce Capital Advisors LLC | 990,472 | $13.9M | 1.47% | +617,260+165.4% | Added |
| Millennium Management LLC | 937,898 | $13.2M | 0.01% | +641,972+216.9% | Added |
| Jefferies Financial Group Inc. | 712,300 | $10.0M | 0.12% | 00.0% | Unchanged |
| 5AM Venture Management, LLC | 572,665 | $8.05M | 2.24% | 00.0% | Unchanged |
| BlackRock, Inc. | 455,618 | $6.41M | 0.00% | +21,217+4.9% | Added |
| UBS Group AG | 412,416 | $5.80M | 0.00% | +49,035+13.5% | Added |
| Squadron Capital Management LLC | 325,000 | $4.57M | 1.83% | +10,000+3.2% | Added |
| Foresite Capital Management VI LLC | 315,492 | $4.44M | 0.96% | +315,492 | New |
| Boothbay Fund Management, LLC | 282,891 | $3.98M | 0.09% | +170,707+152.2% | Added |
| CenterBook Partners LP | 216,574 | $3.05M | 0.16% | −66,867−23.6% | Reduced |
| HighVista Strategies LLC | 213,212 | $3.00M | 0.83% | −27,312−11.4% | Reduced |
| Marshall Wace, LLP | 91,108 | $1.28M | 0.00% | −149,656−62.2% | Reduced |
| Occam Crest Management LP | 80,000 | $1.12M | 0.71% | +80,000 | New |
| Trexquant Investment LP | 69,808 | $981.5K | 0.01% | +15,032+27.4% | Added |
| AdvisorShares Investments LLC | 67,034 | $942.5K | 0.17% | −78−0.1% | Reduced |
| Citadel Advisors LLC | 65,464 | $920.4K | 0.00% | +39,206+149.3% | Added |
| XTX Topco Ltd | 52,090 | $732.4K | 0.01% | +7,644+17.2% | Added |
| Goldman Sachs Group Inc | 44,795 | $629.8K | 0.00% | −36,191−44.7% | Reduced |
| Geode Capital Management, LLC | 40,483 | $569.2K | 0.00% | +4,838+13.6% | Added |
| Northern Trust Corp | 32,685 | $459.6K | 0.00% | −143−0.4% | Reduced |
| Diadema Partners LP | 26,836 | $377.3K | 0.16% | +26,836 | New |
| Morgan Stanley | 25,830 | $363.2K | 0.00% | −25,574−49.8% | Reduced |
| Virtus Investment Advisers, Inc. | 20,920 | $294.1K | 0.08% | +512+2.5% | Added |
| Renaissance Technologies LLC | 20,614 | $289.8K | 0.00% | +20,614 | New |
| Tudor Investment Corp Et Al | 18,560 | $261.0K | 0.00% | +18,560 | New |
| JPMorgan Chase & Co | 18,853 | $245.7K | 0.00% | −28−0.1% | Reduced |
| HighTower Advisors, LLC | 15,600 | $219.3K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 13,507 | $189.9K | 0.01% | +3,400+33.6% | Added |
| State Street Corp | 11,049 | $155.3K | 0.00% | +228+2.1% | Added |
| Lion Point Capital, LP | 10,200 | $143.4K | 0.86% | 00.0% | Unchanged |
| Persistent Asset Partners Ltd | 6,794 | $95.5K | 0.04% | +6,794 | New |
| Advisor Group Holdings, Inc. | 5,925 | $83.3K | 0.00% | −4,100−40.9% | Reduced |
| Barclays PLC | 4,394 | $61.8K | 0.00% | +2,276+107.5% | Added |
| Mirae Asset Global Investments Co., Ltd. | 3,235 | $45.5K | 0.00% | +221+7.3% | Added |
| Royal Bank of Canada | 2,590 | $36.0K | 0.00% | +780+43.1% | Added |
| North Star Investment Management Corp. | 2,200 | $30.9K | 0.00% | +2,200 | New |
| Citigroup Inc | 1,733 | $24.4K | 0.00% | −2,671−60.6% | Reduced |
| GF Fund Management Co. Ltd. | 1,384 | $19.5K | 0.00% | +166+13.6% | Added |
| BNP Paribas Arbitrage, SA | 1,310 | $18.4K | 0.00% | −27−2.0% | Reduced |
| Wells Fargo & Company | 1,250 | $17.6K | 0.00% | 00.0% | Unchanged |
| Archetype Wealth Partners | 1,180 | $17.0K | 0.00% | +1,180 | New |
| Tower Research Capital LLC (TRC) | 665 | $9.35K | 0.00% | −105−13.6% | Reduced |
| Ancora Advisors, LLC | 284 | $3.99K | 0.00% | +284 | New |
| Farther Finance Advisors, LLC | 100 | $1.47K | 0.00% | +100 | New |
| Simplex Trading, LLC | 83 | $1.17K | 0.00% | +35+72.9% | Added |
| Cornerstone Financial Management LLC | 32 | $450 | 0.00% | +32 | New |
| SBI Securities Co., Ltd. | 20 | $281 | 0.00% | 00.0% | Unchanged |
| Cormorant Asset Management, LP | 0 | $0 | 0.00% | −1,300,000−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −673,735−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −204,975−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −50,005−100.0% | Sold out |
| BIT Capital GmbH | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −18,565−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −15,936−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −15,877−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −4,450−100.0% | Sold out |
| Daiwa Securities Group Inc. | 0 | $0 | 0.00% | −207−100.0% | Sold out |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |