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GH Research
GHRS

38 hedge funds and large institutions have $531M invested in GH Research in 2025 Q2 according to their latest regulatory filings, with 7 funds opening new positions, 14 increasing their positions, 10 reducing their positions, and 5 closing their positions.

New
Increased
Maintained
Reduced
Closed

40% more first-time investments, than exits

New positions opened: 7 | Existing positions closed: 5

40% more repeat investments, than reductions

Existing positions increased: 14 | Existing positions reduced: 10

15.01% more ownership

Funds ownership: 68.71% → 83.71% (+15%)

13% more capital invested

Capital invested by funds: $470M → $531M (+$60.8M)

6% more funds holding

Funds holding: 36 → 38 (+2)

33% less funds holding in top 10

Funds holding in top 10: 3 → 2 (-1)

Holders
38
Holders Change
+2
Holders Change %
+5.56%
% of All Funds
0.5%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.03%
New
7
Increased
14
Reduced
10
Closed
5
Calls
$10K
Puts
–
Net Calls
+$10K
Net Calls Change
-$24K

Top Buyers

Rank Fund Capital Flow
1
Fidelity Investments
Fidelity Investments
Massachusetts
+$9.24M
2
RCM
RA Capital Management
Massachusetts
+$8.03M
3
LCM
Lynx1 Capital Management
Puerto Rico
+$3.32M
4
Millennium Management
Millennium Management
New York
+$2.23M
5
SC
Stempoint Capital
New York
+$1.11M

Top Sellers

Rank Fund Capital Flow
1
DM
Deerfield Management
New York
-$10.2M
2
Alyeska Investment Group
Alyeska Investment Group
Illinois
-$2.19M
3
TCA
Troluce Capital Advisors
Puerto Rico
-$765K
4
Walleye Capital
Walleye Capital
New York
-$584K
5
PEAK6
PEAK6
Illinois
-$485K
Name Holding Trade Value Shares
Change 		Change in
Stake
PEAK6
26
PEAK6
Illinois
$244K -$485K -44,213 -69%
BNP Paribas Financial Markets
27
BNP Paribas Financial Markets
France
$207K +$116K +10,600 +165%
BFM
28
Boothbay Fund Management
New York
$169K -$176K -16,081 -54%
VIA
29
Virtus Investment Advisers
Connecticut
$89.3K +$80.3K +7,329 New
JP Morgan Chase
30
JP Morgan Chase
New York
$79.2K +$71.3K +6,500 New
Osaic Holdings
31
Osaic Holdings
Arizona
$75.3K +$26.3K +2,400 +64%
LWCFA
32
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$24.4K – – –
Royal Bank of Canada
33
Royal Bank of Canada
Ontario, Canada
$23K +$8.35K +762 +69%
Wells Fargo
34
Wells Fargo
California
$15.2K – – –
Bank of America
35
Bank of America
North Carolina
$2.72K +$767 +70 +46%
GRP
36
Global Retirement Partners
California
$1.34K +$1.21K +110 New
Group One Trading
37
Group One Trading
Illinois
$975 -$998 -91 -53%
DM
38
Deerfield Management
New York
– -$10.2M -925,000 Closed
Walleye Capital
39
Walleye Capital
New York
– -$584K -52,940 Closed
Citadel Advisors
40
Citadel Advisors
Florida
– -$172K -15,586 Closed
XT
41
XTX Topco
Cayman Islands
– -$169K -15,354 Closed
TIM
42
Tortoise Investment Management
New York
– -$19.6K -1,781 Closed
Simplex Trading
43
Simplex Trading
Illinois
– +$88 +8 +47%
1
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GHRS Hedge Fund Activity: Q2 2025 in Review

38 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in GH Research (GHRS) for Q2 2025, worth a combined $531M — up 13% from $470M a quarter earlier.

Buyers outnumbered sellers: 7 funds opened new GHRS positions and 5 closed out — a net gain of 2 holders — while 14 added to existing stakes and 10 trimmed.

The largest buyer was Fidelity Investments, adding an estimated $9.24M. The largest seller was Deerfield Management, exiting entirely with an estimated $10.2M sold.

  • 38 institutional investors held GH Research (GHRS) as of Q2 2025, up from 36 in Q1 2025.
  • Funds reported $531M of GH Research stock for Q2 2025, up 13% quarter-over-quarter.
  • 7 funds opened new GH Research positions in Q2 2025 and 5 closed out, a net change of +2 holders.
  • The largest GH Research buyer in Q2 2025 was Fidelity Investments, an estimated $9.24M added.
  • The largest GH Research seller in Q2 2025 was Deerfield Management, an estimated $10.2M sold.

Based on aggregated 13F filings for Q2 2025.