Institutional shares held 33.3 Million
68.2K calls
0 puts
Total value of holdings $162M
$332K calls
$0 puts
Market Cap $222M
45,556,000 Shares Out.
Institutional ownership 73.2%
# of Institutions 124


Latest Institutional Activity in PBYI

Top Purchases

Q2 2025
Janus Henderson Group PLC Shares Held: 746K ($3.63M)
Q2 2025
Citadel Advisors LLC Shares Held: 508K ($2.47M)
Q2 2025
Lsv Asset Management Shares Held: 536K ($2.61M)
Q2 2025
O'Shaughnessy Asset Management, LLC Shares Held: 438K ($2.13M)
Q2 2025
Dimensional Fund Advisors LP Shares Held: 1.15M ($5.6M)

Top Sells

Q2 2025
Millennium Management LLC Shares Held: 335K ($1.63M)
Q2 2025
Marshall Wace, LLP Shares Held: 73.4K ($358K)
Q2 2025
Goldman Sachs Group Inc Shares Held: 202K ($984K)
Q2 2025
Franklin Resources Inc Shares Held: 17.7K ($86.2K)
Q2 2025
Virtus ETF Advisers LLC Shares Held: 13.8K ($67.3K)

About PBYI

Puma Biotechnology, Inc., a biopharmaceutical company, focuses on the development and commercialization of products to enhance cancer care in the United States and internationally. The company's drug candidates include PB272 neratinib (oral) for the patients with early stage HER2-overexpressed/amplified breast cancer; PB272 (neratinib, oral) for the use of neratinib in combination with capecitabine for the treatment of adult patients with advanced or metastatic HER2-positive breast cancer; PB272 (neratinib, oral) for HER2 mutation-positive solid tumors. It has a license agreement with Pfizer, Inc.; and sub-license agreement with Specialised Therapeutics Asia Pte Ltd., CANbridge BIOMED Limited, Pint Pharma International SA, Knight Therapeutics, Inc., Pierre Fabre Medicament SAS, and Bixink Therapeutics Co., Ltd. The company was founded in 2010 and is headquartered in Los Angeles, California.


Insider Transactions at PBYI

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
545K Shares
From 11 Insiders
Grant, award, or other acquisition 545K shares
Sell / Disposition
245K Shares
From 10 Insiders
Open market or private sale 245K shares

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