13F Insight
DOSSIER · 13F Holders · Q1 2026Defensive growthQuality

GH RESEARCH PLC

56 institutions still hold GH RESEARCH PLC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G3855L106·56 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 3.2%
vs prior quarter
13F value held
$649M
70.0% inst. owned
of float
Holders
56
-38 QoQ
filers reporting
Activity
+43 / −71
+805 added · −756 reduced
this quarter
Concentration
23.31%
Lynx1 Capital Management LP #1
top holder share
AI Holders Summary · Q1 2026

56 institutions reported GH RESEARCH PLC in Q1 2026. Lynx1 Capital Management LP leads at 23.3% of the visible book. -38 net institutions QoQ — distribution reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Lynx1 Capital Management LP
CIK 0001910456
$151M10.8M23.92%Q1 202602
BVF INC/IL
CIK 0001056807
$112M8.8M3.77%Q4 202503
RA CAPITAL MANAGEMENT, L.P.
CIK 0001346824
$108M7.7M1.14%Q1 202604
RTW INVESTMENTS, LP
CIK 0001493215
$83M5.9M0.83%Q1 202605
FMR LLC
CIK 0000315066
$72M5.1M0.00%Q1 202606
Avoro Capital Advisors LLC
CIK 0001633313
$25M1.8M0.25%Q1 202607
TORONTO DOMINION BANK
CIK 0000947263
$20M1.4M0.03%Q1 202608
Troluce Capital Advisors LLC
CIK 0001910321
$14M990K0.85%Q1 202609
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$13M938K0.01%Q1 202610
Jefferies Financial Group Inc.
CIK 0000096223
$10M712K0.07%Q1 202611
5AM Venture Management, LLC
CIK 0001799883
$7M573K2.29%Q4 202512
BlackRock, Inc.
CIK 0002012383
$6M456K0.00%Q1 202613
UBS Group AG
CIK 0001610520
$6M412K0.00%Q1 202614
Squadron Capital Management LLC
CIK 0002050709
$4M315K1.70%Q4 202515
BOOTHBAY FUND MANAGEMENT, LLC
CIK 0001549230
$4M283K0.05%Q1 202616
MARSHALL WACE, LLP
CIK 0001318757
$3M241K0.00%Q4 202517
CenterBook Partners LP
CIK 0001872738
$3M217K0.16%Q1 202618
HighVista Strategies LLC
CIK 0001335325
$3M213K0.83%Q1 202619
Alyeska Investment Group, L.P.
CIK 0001453072
$3M205K0.01%Q4 202520
Trexquant Investment LP
CIK 0001633445
$981,50070K0.01%Q1 2026
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