PBYI Puma Biotechnology, Inc.
Puma Biotechnology, Inc. (PBYI) Institutional Ownership
What the institutions did with PBYI last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| ACORN CAPITAL ADVISORS, LLC | 4.1M | 10.7% |
| BlackRock, Inc. | 3.8M | 9.8% |
| AMERICAN CENTURY COMPANIES INC | 2.3M | 6.0% |
| ACADIAN ASSET MANAGEMENT LLC | 2.1M | 5.3% |
| RENAISSANCE TECHNOLOGIES LLC | 1.8M | 4.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.8M | 4.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.8M | 4.7% |
| LSV ASSET MANAGEMENT | 1.6M | 4.2% |
| DIMENSIONAL FUND ADVISORS LP | 1.5M | 3.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.3M | 3.5% |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 1.1M | 2.9% |
| STATE STREET CORP | 952.2K | 2.5% |
| KENNEDY CAPITAL MANAGEMENT LLC | 873.3K | 2.3% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 791.6K | 2.0% |
| RITHOLTZ WEALTH MANAGEMENT | 749.8K | 1.9% |
| AQR CAPITAL MANAGEMENT LLC | 725.2K | 1.9% |
| GOLDMAN SACHS GROUP INC | 669.2K | 1.7% |
| NORTHERN TRUST CORP | 652.4K | 1.7% |
| Connor, Clark & Lunn Investment Management Ltd. | 642.9K | 1.7% |
| UBS Group AG | 636.8K | 1.6% |
| MILLENNIUM MANAGEMENT LLC | 602.2K | 1.6% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 532.5K | 1.4% |
| SEI INVESTMENTS CO | 418.7K | 1.1% |
| GLOBEFLEX CAPITAL L P | 382.8K | 1.0% |
| Bank of New York Mellon Corp | 360.7K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| MILLENNIUM MANAGEMENT LLC | Reduced | 1.5M | 602.2K | -875.3K |
| LSV ASSET MANAGEMENT | Increased | 1.2M | 1.6M | +435.1K |
| AMERICAN CENTURY COMPANIES INC | Increased | 1.9M | 2.3M | +403.7K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.0M | 1.3M | +322.1K |
| Invesco Ltd. | Increased | 95.0K | 301.0K | +206.0K |
| BlackRock, Inc. | Increased | 3.6M | 3.8M | +205.8K |
| Connor, Clark & Lunn Investment Management Ltd. | Reduced | 782.8K | 642.9K | -139.9K |
| TWO SIGMA INVESTMENTS, LP | Increased | 13.0K | 140.6K | +127.6K |
| WELLINGTON MANAGEMENT GROUP LLP | New | 0 | 126.1K | +126.1K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 1.9M | 1.8M | -106.2K |
| UBS Group AG | Increased | 534.2K | 636.8K | +102.5K |
| MORGAN STANLEY | Reduced | 359.7K | 265.7K | -94.1K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 1.7M | 1.8M | +91.0K |
| SEI INVESTMENTS CO | Reduced | 508.2K | 418.7K | -89.5K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.4M | 1.5M | +81.9K |
| AQR CAPITAL MANAGEMENT LLC | Reduced | 800.2K | 725.2K | -75.0K |
| Trexquant Investment LP | New | 0 | 72.2K | +72.2K |
| CANADA PENSION PLAN INVESTMENT BOARD | Increased | 22.8K | 73.5K | +50.7K |
| FRANKLIN RESOURCES INC | Reduced | 215.4K | 172.0K | -43.4K |
| PRUDENTIAL FINANCIAL INC | Reduced | 253.0K | 213.6K | -39.4K |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | Increased | 272.9K | 309.1K | +36.2K |
| State of Wyoming | Reduced | 75.8K | 39.8K | -36.0K |
| D. E. Shaw & Co., Inc. | Reduced | 351.2K | 316.3K | -34.9K |
| STATE STREET CORP | Increased | 917.6K | 952.2K | +34.6K |
| GLOBEFLEX CAPITAL L P | Increased | 349.7K | 382.8K | +33.2K |
| Vise Technologies, Inc. | Increased | 40.3K | 72.0K | +31.7K |
| OpenArc Corporate Advisory, LLC | Reduced | 89.5K | 59.5K | -30.0K |
| CITADEL ADVISORS LLC | Sold Out | 30.0K | 0 | -30.0K |
| VIRTUS ADVISERS, LLC | Sold Out | 29.3K | 0 | -29.3K |
| Engineers Gate Manager LP | Sold Out | 28.6K | 0 | -28.6K |
| Y-Intercept (Hong Kong) Ltd | New | 0 | 26.2K | +26.2K |
| WINTON GROUP Ltd | Reduced | 66.3K | 40.5K | -25.8K |
| MARTINGALE ASSET MANAGEMENT L P | New | 0 | 25.4K | +25.4K |
| XTX Topco Ltd | Increased | 15.1K | 40.3K | +25.2K |
| RITHOLTZ WEALTH MANAGEMENT | Reduced | 774.3K | 749.8K | -24.5K |
| PANAGORA ASSET MANAGEMENT INC | Increased | 194.9K | 217.5K | +22.7K |
| EVERGREEN CAPITAL MANAGEMENT LLC | Reduced | 96.0K | 73.7K | -22.3K |
| WELLS FARGO & COMPANY/MN | Increased | 16.3K | 37.6K | +21.3K |
| Russell Investments Group, Ltd. | Increased | 251.7K | 272.2K | +20.6K |
| STATE OF WISCONSIN INVESTMENT BOARD | Reduced | 208.6K | 188.2K | -20.4K |
| FMR LLC | Increased | 191.8K | 211.4K | +19.6K |
| CITIGROUP INC | Increased | 3.4K | 21.7K | +18.2K |
| LAZARD ASSET MANAGEMENT LLC | Sold Out | 18.0K | 0 | -18.0K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 1.8M | 1.8M | +18.0K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 251.7K | 269.1K | +17.4K |
| Vanguard Global Advisers, LLC | Increased | 29.2K | 46.3K | +17.1K |
| Spark Investment Management LLC | New | 0 | 17.0K | +17.0K |
| Quadrature Capital Ltd | Sold Out | 16.7K | 0 | -16.7K |
| KENNEDY CAPITAL MANAGEMENT LLC | Reduced | 889.6K | 873.3K | -16.3K |
| Empowered Funds, LLC | Increased | 204.0K | 220.3K | +16.3K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Increased | 775.3K | 791.6K | +16.3K |
| EntryPoint Capital, LLC | Reduced | 53.5K | 37.4K | -16.1K |
| Lido Advisors, LLC | New | 0 | 15.0K | +15.0K |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | Reduced | 1.1M | 1.1M | -14.4K |
| Prospera Financial Services Inc | Reduced | 173.1K | 158.8K | -14.3K |
| Ashton Thomas Private Wealth, LLC | Sold Out | 13.5K | 0 | -13.5K |
| HRT FINANCIAL LP | Sold Out | 13.1K | 0 | -13.1K |
| FEDERATED HERMES, INC. | Increased | 237.7K | 250.8K | +13.1K |
| Bank of New York Mellon Corp | Increased | 347.9K | 360.7K | +12.9K |
| Creative Planning | Increased | 23.1K | 35.7K | +12.6K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.