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PBYI · Puma Biotechnology, Inc.

$8.13 +0.14 (+1.75%) At close · Aug 6
Market Cap
$413.30M
Shares
50.90M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Pick a completed quarter in the Quarter selector below to see a single quarter with position changes.
Holders: 157
Total Value: $211,764,337
Total Shares: 36,165,798
Showing 1–100 of 158 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 157 13F filers
Top Holder
12.5%
Jun 2023 → Mar 2026 · range 12.5% – 21.1%
of institutional value
Top 5
40.7%
Jun 2023 → Mar 2026 · range 40.7% – 67.3%
of institutional value
Top 10
58.9%
Jun 2023 → Mar 2026 · range 58.9% – 80.1%
of institutional value
HHI
501
Jun 2023 → Mar 2026 · range 501 – 1,097
Broadly held
Showing 100 of 158
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1401667 CUSIP 74587V107 13F (30d) 40 filings 40 filers Visit website Investor relations