13F Insight
DOSSIER · 13F Holders · Q1 2026Most-boughtAI cap-ex
PEPG

PEPGEN INC

96 institutions still hold PEPGEN INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 713317105·96 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 8.4%
vs prior quarter
13F value held
$104M
46.0% inst. owned
of float
Holders
96
+79 QoQ
filers reporting
Activity
+47 / −95
+839 added · −754 reduced
this quarter
Concentration
34.19%
RA CAPITAL MANAGEMENT, L.P. #1
top holder share
AI Holders Summary · Q1 2026

96 institutions reported PEPG in Q1 2026. RA CAPITAL MANAGEMENT, L.P. leads at 34.2% of the visible book. +79 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
RA CAPITAL MANAGEMENT, L.P.
CIK 0001346824
$36M20.1M0.38%Q1 202602
BVF INC/IL
CIK 0001056807
$12M1.9M0.42%Q4 202503
Commodore Capital LP
CIK 0001831942
$8M4.5M0.46%Q1 202604
VIKING GLOBAL INVESTORS LP
CIK 0001103804
$6M3.5M0.02%Q1 202605
Laurion Capital Management LP
CIK 0001390202
$5M2.8M0.21%Q1 202606
Vivo Capital, LLC
CIK 0001674712
$4M2.3M0.34%Q1 202607
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$4M2.1M0.00%Q1 202608
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$3M1.9M0.00%Q1 202609
AWM Investment Company, Inc.
CIK 0001535264
$3M1.8M0.36%Q1 202610
Kalehua Capital Management LLC
CIK 0002106181
$3M1.7M1.18%Q1 202611
ADAR1 Capital Management, LLC
CIK 0001940272
$3M1.6M0.17%Q1 202612
Woodline Partners LP
CIK 0001784547
$2M1.3M0.01%Q1 202613
Pictet Asset Management Holding SA
CIK 0001993888
$2M1.3M0.00%Q1 202614
BlackRock, Inc.
CIK 0002012383
$2M1.3M0.00%Q1 202615
MARSHALL WACE, LLP
CIK 0001318757
$2M291K0.00%Q4 202516
CITADEL ADVISORS LLC
CIK 0001423053
$2M286K0.00%Q4 202517
MORGAN STANLEY
CIK 0000895421
$2M999K0.00%Q1 202618
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$2M887K0.00%Q1 202619
Ikarian Capital, LLC
CIK 0001778253
$1M747K0.11%Q1 202620
Qube Research & Technologies Ltd
CIK 0001729829
$1M706K0.00%Q1 2026
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