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

FIBROGEN INC

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

CUSIP 31572Q881·38 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 5.2%
vs prior quarter
13F value held
$8M
79.0% inst. owned
of float
Holders
38
+134 QoQ
filers reporting
Activity
+60 / −74
+976 added · −973 reduced
this quarter
Concentration
35.39%
ARMISTICE CAPITAL, LLC #1
top holder share
AI Holders Summary · Q1 2026

38 institutions reported KYNB in Q1 2026. ARMISTICE CAPITAL, LLC leads at 35.4% of the visible book. +134 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
ARMISTICE CAPITAL, LLC
CIK 0001601086
$3M400K0.05%Q1 202602
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$1M157K0.00%Q1 202603
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$606,13289K0.00%Q1 202604
BlackRock, Inc.
CIK 0002012383
$571,76584K0.00%Q1 202605
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$335,68550K0.00%Q1 202606
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$311,93546K0.00%Q1 202607
MARSHALL WACE, LLP
CIK 0001318757
$285,36633K0.00%Q4 202508
HighTower Advisors, LLC
CIK 0001462245
$269,46440K0.00%Q1 202609
TWO SIGMA ADVISERS, LP
CIK 0001478735
$200,26323K0.00%Q4 202510
UBS Group AG
CIK 0001610520
$187,06728K0.00%Q1 202611
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$186,32127K0.00%Q1 202612
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$162,32724K0.00%Q1 202613
Birchview Capital, LP
CIK 0001618205
$152,99723K0.09%Q1 202614
CITADEL ADVISORS LLC
CIK 0001423053
$147,11717K0.00%Q4 202515
WOLVERINE TRADING, LLC
CIK 0000927337
$142,00012K0.00%Q3 202516
STATE STREET CORP
CIK 0000093751
$137,52620K0.00%Q1 202617
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$82,90612K0.00%Q1 202618
ADAR1 Capital Management, LLC
CIK 0001940272
$70,98010K0.00%Q1 202619
GROUP ONE TRADING LLC
CIK 0000932540
$30,4564K0.00%Q1 202620
Vanguard Global Advisers, LLC
CIK 0001811242· Index
$9,6551K0.00%Q1 2026
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