GH Research
GHRS
47 hedge funds and large institutions have $618M invested in GH Research in 2025 Q3 according to their latest regulatory filings, with 14 funds opening new positions, 18 increasing their positions, 10 reducing their positions, and 5 closing their positions.
180% more first-time investments, than exits
New positions opened: 14 | Existing positions closed: 5
80% more repeat investments, than reductions
Existing positions increased: 18 | Existing positions reduced: 10
24% more funds holding
Funds holding: 38 → 47 (+9)
16% more capital invested
Capital invested by funds: $531M → $618M (+$87.2M)
1.88% more ownership
Funds ownership: 83.71% → 85.59% (+1.9%)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
56% less call options, than puts
Call options by funds: $186K | Put options by funds: $425K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
LCM
Lynx1 Capital Management
San Juan,
Puerto Rico
|
+$25.9M |
| 2 |
Millennium Management
New York
|
+$9.23M |
| 3 |
SC
Stempoint Capital
New York
|
+$6.22M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
+$3.29M |
| 5 |
HS
HighVista Strategies
Boston,
Massachusetts
|
+$2.65M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Toronto Dominion Bank
Toronto, Ontario,
Ontario, Canada
|
-$24M |
| 2 |
DTC
Deep Track Capital
Greenwich,
Connecticut
|
-$10.5M |
| 3 |
Morgan Stanley
New York
|
-$3.87M |
| 4 |
CAM
Cormorant Asset Management
Boston,
Massachusetts
|
-$1.3M |
| 5 |
Alyeska Investment Group
Chicago,
Illinois
|
-$699K |
GHRS Hedge Fund Activity: Q3 2025 in Review
47 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in GH Research (GHRS) for Q3 2025, worth a combined $618M — up 16% from $531M a quarter earlier.
Buyers outnumbered sellers: 14 funds opened new GHRS positions and 5 closed out — a net gain of 9 holders — while 18 added to existing stakes and 10 trimmed.
The largest buyer was Lynx1 Capital Management, adding an estimated $25.9M. The largest seller was Toronto Dominion Bank, exiting entirely with an estimated $24M sold.
- 47 institutional investors held GH Research (GHRS) as of Q3 2025, up from 38 in Q2 2025.
- Funds reported $618M of GH Research stock for Q3 2025, up 16% quarter-over-quarter.
- 14 funds opened new GH Research positions in Q3 2025 and 5 closed out, a net change of +9 holders.
- The largest GH Research buyer in Q3 2025 was Lynx1 Capital Management, an estimated $25.9M added.
- The largest GH Research seller in Q3 2025 was Toronto Dominion Bank, an estimated $24M sold.
Based on aggregated 13F filings for Q3 2025.