DOSSIER · 13F Holders · Q2 2026
PBYI

PUMA BIOTECHNOLOGY INC

172 institutions still hold PUMA BIOTECHNOLOGY INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 74587V107·172 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$235M
visible holders
Holders
172
filers reporting
Concentration
14.26%
ACORN CAPITAL ADVISORS, LLC #1
top holder share
AI Holders Summary · Q2 2026

172 institutions reported PBYI in Q2 2026. ACORN CAPITAL ADVISORS, LLC leads at 14.3% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
ACORN CAPITAL ADVISORS, LLC
CIK 0002054410
$34M4.1M9.14%Q2 2026
02
BlackRock, Inc.
CIK 0002012383
$31M3.8M0.00%Q2 2026
03
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$19M2.3M0.01%Q2 2026
04
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$15M1.8M0.02%Q2 2026
05
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$15M1.8M0.00%Q2 2026
06
Vanguard Portfolio Management
CIK 0002100121· Index
$15M1.8M0.00%Q2 2026
07
ACADIAN ASSET MANAGEMENT LLC
CIK 0000916542
$13M2.0M0.02%Q1 2026
08
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$12M1.5M0.00%Q2 2026
09
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$11M1.3M0.00%Q2 2026
10
O'SHAUGHNESSY ASSET MANAGEMENT, LLC
CIK 0001423442
$9M1.1M0.04%Q2 2026
11
STATE STREET CORP
CIK 0000093751
$8M952K0.00%Q2 2026
12
LSV ASSET MANAGEMENT
CIK 0001050470
$8M1.2M0.02%Q1 2026
13
KENNEDY CAPITAL MANAGEMENT LLC
CIK 0000884589
$7M873K0.13%Q2 2026
14
BRIDGEWAY CAPITAL MANAGEMENT, LLC
CIK 0001107261
$6M792K0.11%Q2 2026
15
RITHOLTZ WEALTH MANAGEMENT
CIK 0001698218
$6M750K0.09%Q2 2026
16
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$6M725K0.00%Q2 2026
17
GOLDMAN SACHS GROUP INC
CIK 0000886982
$5M669K0.00%Q2 2026
18
NORTHERN TRUST CORP
CIK 0000073124· Index
$5M652K0.00%Q2 2026
19
Connor, Clark & Lunn Investment Management Ltd.
CIK 0001596800
$5M643K0.01%Q2 2026
20
UBS Group AG
CIK 0001610520
$5M637K0.00%Q2 2026
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Insiders at PUMA BIOTECHNOLOGY INC
Nougues Maximo FHunt Douglas MAuerbach Alan HMoyes Jay MSenderowicz AdrianStuglik Brian MWilson Troy EdwardDorval Allison