Who owns PUMA BIOTECHNOLOGY, INC.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of PBYI from SEC Form 13F filings across 160 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 160 institutions disclosed 38.7M shares of PUMA BIOTECHNOLOGY, INC. worth $313.6M — about 75.9% of shares outstanding; the largest disclosed holder is ACORN CAPITAL ADVISORS, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
160
13F holders
$313.6M
value, 2026 filers
75.9%
of shares outstanding (38.7M sh)
22
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of PBYI's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | ACORN CAPITAL ADVISORS, LLC | 4.1M | $33.5M | 9.1% | 8.1% | 0.0% |
| 2 | BlackRock, Inc. | 3.8M | $30.9M | 0.0% | 7.5% | +5.7% |
| 3 | AMERICAN CENTURY COMPANIES INC | 2.3M | $18.8M | 0.0% | 4.6% | +21.1% |
| 4 | ACADIAN ASSET MANAGEMENT LLC | 2.1M | $16.6M | 0.0% | 4% | +0.6% |
| 5 | RENAISSANCE TECHNOLOGIES LLC | 1.8M | $14.9M | 0.0% | 3.6% | -5.5% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 1.8M | $14.9M | 0.0% | 3.6% | +1.0% |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.8M | $14.8M | 0.0% | 3.6% | +5.2% |
| 8 | LSV ASSET MANAGEMENT | 1.6M | $13.1M | 0.0% | 3.2% | +36.8% |
| 9 | DIMENSIONAL FUND ADVISORS LP | 1.5M | $12.3M | 0.0% | 3% | +5.7% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 1.3M | $10.9M | 0.0% | 2.6% | +31.7% |
| 11 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 1.1M | $9.1M | 0.0% | 2.2% | -1.3% |
| 12 | STATE STREET CORP | 952,165 | $7.7M | 0.0% | 1.9% | +3.8% |
| 13 | KENNEDY CAPITAL MANAGEMENT LLC | 873,253 | $7.1M | 0.1% | 1.7% | -1.8% |
| 14 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 791,616 | $6.4M | 0.1% | 1.6% | +2.1% |
| 15 | RITHOLTZ WEALTH MANAGEMENT | 749,798 | $6.1M | 0.1% | 1.5% | -3.2% |
| 16 | AQR CAPITAL MANAGEMENT LLC | 725,192 | $5.9M | 0.0% | 1.4% | -9.4% |
| 17 | GOLDMAN SACHS GROUP INC | 669,156 | $5.4M | 0.0% | 1.3% | -0.1% |
| 18 | NORTHERN TRUST CORP | 652,386 | $5.3M | 0.0% | 1.3% | +1.7% |
| 19 | Connor, Clark & Lunn Investment Management Ltd. | 642,946 | $5.2M | 0.0% | 1.3% | -17.9% |
| 20 | UBS Group AG | 636,761 | $5.2M | 0.0% | 1.3% | +19.2% |
| 21 | MILLENNIUM MANAGEMENT LLC | 602,240 | $4.9M | 0.0% | 1.2% | -59.2% |
| 22 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 532,450 | $4.3M | 0.0% | 1% | -1.1% |
| 23 | SEI INVESTMENTS CO | 418,669 | $3.4M | 0.0% | 0.8% | -17.6% |
| 24 | GLOBEFLEX CAPITAL L P | 382,807 | $3.1M | 0.4% | 0.8% | +9.5% |
| 25 | Bank of New York Mellon Corp | 360,734 | $2.9M | 0.0% | 0.7% | +3.7% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.