GHRS GH Research PLC
GH Research PLC (GHRS) Institutional Ownership
What the institutions did with GHRS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| Lynx1 Capital Management LP | 13.3M | 25.8% |
| BVF INC/IL | 8.7M | 16.8% |
| RA CAPITAL MANAGEMENT, L.P. | 7.6M | 14.8% |
| FMR LLC | 6.0M | 11.6% |
| RTW INVESTMENTS, LP | 5.9M | 11.5% |
| Deep Track Capital, LP | 3.3M | 6.5% |
| Avoro Capital Advisors LLC | 1.8M | 3.5% |
| Foresite Capital Management VI LLC | 940.5K | 1.8% |
| Jefferies Financial Group Inc. | 712.3K | 1.4% |
| BlackRock, Inc. | 480.3K | 0.9% |
| UBS Group AG | 477.4K | 0.9% |
| MILLENNIUM MANAGEMENT LLC | 323.4K | 0.6% |
| BRAIDWELL LP | 207.2K | 0.4% |
| BOOTHBAY FUND MANAGEMENT, LLC | 202.1K | 0.4% |
| JANE STREET GROUP, LLC | 170.0K | 0.3% |
| HighVista Strategies LLC | 158.8K | 0.3% |
| Trexquant Investment LP | 153.8K | 0.3% |
| GOLDMAN SACHS GROUP INC | 148.7K | 0.3% |
| XTX Topco Ltd | 87.0K | 0.2% |
| CITADEL ADVISORS LLC | 86.0K | 0.2% |
| AdvisorShares Investments LLC | 71.3K | 0.1% |
| CenterBook Partners LP | 69.4K | 0.1% |
| HRT FINANCIAL LP | 65.4K | 0.1% |
| MORGAN STANLEY | 52.2K | 0.1% |
| Point72 Asset Management, L.P. | 50.9K | 0.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Deep Track Capital, LP | New | 0 | 3.3M | +3.3M |
| Lynx1 Capital Management LP | Increased | 10.8M | 13.3M | +2.5M |
| TORONTO DOMINION BANK | Sold Out | 1.4M | 0 | -1.4M |
| Troluce Capital Advisors LLC | Sold Out | 990.5K | 0 | -990.5K |
| FMR LLC | Increased | 5.1M | 6.0M | +841.0K |
| Foresite Capital Management VI LLC | Increased | 315.5K | 940.5K | +625.0K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 937.9K | 323.4K | -614.5K |
| 5AM Venture Management, LLC | Sold Out | 572.7K | 0 | -572.7K |
| Squadron Capital Management LLC | Sold Out | 325.0K | 0 | -325.0K |
| BRAIDWELL LP | New | 0 | 207.2K | +207.2K |
| JANE STREET GROUP, LLC | New | 0 | 170.0K | +170.0K |
| CenterBook Partners LP | Reduced | 216.6K | 69.4K | -147.1K |
| GOLDMAN SACHS GROUP INC | Increased | 44.8K | 148.7K | +103.9K |
| Trexquant Investment LP | Increased | 69.8K | 153.8K | +84.0K |
| BOOTHBAY FUND MANAGEMENT, LLC | Reduced | 282.9K | 202.1K | -80.8K |
| Occam Crest Management LP | Sold Out | 80.0K | 0 | -80.0K |
| HRT FINANCIAL LP | New | 0 | 65.4K | +65.4K |
| UBS Group AG | Increased | 412.4K | 477.4K | +65.0K |
| HighVista Strategies LLC | Reduced | 213.2K | 158.8K | -54.4K |
| Point72 Asset Management, L.P. | New | 0 | 50.9K | +50.9K |
| MARSHALL WACE, LLP | Reduced | 91.1K | 46.7K | -44.4K |
| Qube Research & Technologies Ltd | New | 0 | 43.9K | +43.9K |
| RA CAPITAL MANAGEMENT, L.P. | Reduced | 7.7M | 7.6M | -39.9K |
| XTX Topco Ltd | Increased | 52.1K | 87.0K | +34.9K |
| DIADEMA PARTNERS LP | Sold Out | 26.8K | 0 | -26.8K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.