GH Research
GHRS
54 hedge funds and large institutions have $669M invested in GH Research in 2026 Q1 according to their latest regulatory filings, with 12 funds opening new positions, 19 increasing their positions, 13 reducing their positions, and 10 closing their positions.
5,300% more call options, than puts
Call options by funds: $162K | Put options by funds: $3K
46% more repeat investments, than reductions
Existing positions increased: 19 | Existing positions reduced: 13
20% more first-time investments, than exits
New positions opened: 12 | Existing positions closed: 10
13% more capital invested
Capital invested by funds: $591M → $669M (+$77.2M)
2% more funds holding
Funds holding: 53 → 54 (+1)
12.84% less ownership
Funds ownership: 89.5% → 76.66% (-13%)
33% less funds holding in top 10
Funds holding in top 10: 3 → 2 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Toronto Dominion Bank
Toronto, Ontario,
Ontario, Canada
|
+$21.5M |
| 2 |
Millennium Management
New York
|
+$9.85M |
| 3 |
TCA
Troluce Capital Advisors
Dorado,
Puerto Rico
|
+$9.47M |
| 4 |
LCM
Lynx1 Capital Management
San Juan,
Puerto Rico
|
+$5.48M |
| 5 |
FCMV
Foresite Capital Management VI
Larkspur,
California
|
+$4.84M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CAM
Cormorant Asset Management
Boston,
Massachusetts
|
-$16.5M |
| 2 |
Verition Fund Management
Greenwich,
Connecticut
|
-$8.56M |
| 3 |
BI
BVF Inc
San Francisco,
California
|
-$2.73M |
| 4 |
Alyeska Investment Group
Chicago,
Illinois
|
-$2.6M |
| 5 |
Marshall Wace
London,
United Kingdom
|
-$2.3M |
GHRS Hedge Fund Activity: Q1 2026 in Review
54 of the 8,191 institutional investors tracked by Wall St. Rank reported a position in GH Research (GHRS) for Q1 2026, worth a combined $669M — up 13% from $591M a quarter earlier.
Buyers outnumbered sellers: 12 funds opened new GHRS positions and 10 closed out — a net gain of 2 holders — while 19 added to existing stakes and 13 trimmed.
The largest buyer was Toronto Dominion Bank, opening a new position worth an estimated $21.5M. The largest seller was Cormorant Asset Management, exiting entirely with an estimated $16.5M sold.
- 54 institutional investors held GH Research (GHRS) as of Q1 2026, up from 53 in Q4 2025.
- Funds reported $669M of GH Research stock for Q1 2026, up 13% quarter-over-quarter.
- 12 funds opened new GH Research positions in Q1 2026 and 10 closed out, a net change of +2 holders.
- The largest GH Research buyer in Q1 2026 was Toronto Dominion Bank, an estimated $21.5M added.
- The largest GH Research seller in Q1 2026 was Cormorant Asset Management, an estimated $16.5M sold.
Based on aggregated 13F filings for Q1 2026.