PBYI · Puma Biotechnology, Inc. · Holdings
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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.
Institutional Ownership Trend
Holder Concentration
Across 161 13F filersWho Holds PBYI
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 160 filers, like-for-like change +2.2%; actively managed books +0.9%; index-like books +5.7%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 47.7% | 82 | -0.3% |
| Exempt adviser | 0.1% | 1 | new |
| Adviser | 2.0% | 5 | +25.7% |
| Bank | 7.5% | 14 | +6.5% |
| Insurer | 0.6% | 1 | -15.6% |
| Broker-dealer | 0.1% | 2 | -6.7% |
| Benefit plan | 1.5% | 4 | +1.3% |
| Non-US | 0.3% | 5 | +74.6% |
| Holding company | 14.3% | 8 | +3.1% |
| Unknown | 25.9% | 38 | +3.3% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 27.6% | 21 | +5.7% |
| Systematic-like | 8.1% | 12 | -21.3% |
| Concentrated | 11.3% | 27 | +0.3% |
| Diversified active | 53.0% | 100 | +5.6% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 54.1% | 93 | +5.6% |
| Medium turnover | 27.0% | 38 | +5.1% |
| High turnover | 8.2% | 18 | -21.7% |
| Unknown | 10.7% | 11 | +2.5% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 10.9% | 14 | +3.5% |
| Medium horizon | 22.6% | 28 | +3.9% |
| Long horizon | 65.0% | 113 | +1.2% |
| Unknown | 1.5% | 5 | +12.8% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 13.1% | 30 | -0.9% |
| $1B to $10B | 8.0% | 39 | -1.8% |
| $10B to $100B | 23.7% | 40 | +2.7% |
| $100B or more | 55.2% | 51 | +3.4% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 6.8% | 44 | -4.2% |
| Pooled investment vehicles | 8.4% | 9 | -21.0% |
| Registered funds and BDCs | 20.2% | 10 | +7.8% |
| Pension and profit sharing plans | 0.0% | 1 | 0.0% |
| Insurance companies | 0.1% | 2 | +45.4% |
| Governments and sovereign funds | 0.9% | 3 | +40.1% |
| Other investment advisers | 0.1% | 3 | +93.3% |
| Diversified | 11.1% | 10 | +6.2% |
| Unknown | 52.3% | 78 | +4.5% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 13.0% | 17 | -16.0% |
| Private equity funds | 0.4% | 6 | -7.0% |
| Venture capital funds | 0.0% | 1 | +4.4% |
| Real estate funds | 0.0% | 2 | -79.4% |
| Securitized asset funds | 0.0% | 1 | 0.0% |
| Other private funds | 11.6% | 11 | +15.0% |
| Mixed private funds | 0.2% | 3 | +124.3% |
| Private funds, type not stated | 4.2% | 2 | -4.1% |
| No private funds | 18.4% | 40 | +6.1% |
| Unknown | 52.3% | 77 | +4.4% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 95.7% | 138 | +2.2% |
| Outside the US | 4.3% | 22 | +1.7% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 1 holder with no observed 2026-03-31 13F and 3 holders with no observed 2026-06-30 13F.
Conviction and Crowding
160 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $124,475 (1 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 42.0% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies PBYI's active holders also own, quarter ended Jun 30, 2026Shareholder Targets
13F filers that own its peers but not PBYI, quarter ended Jun 30, 2026Found through its holder-overlap peers: AEM, MAR, JNJ, MRK, NVDA, AMZN, AAPL, MSFT, META, BMY, ABBV, XOM, MO, T, GOOGL, BA, AMAT, BRK-B, KO, JPM. 7,185 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | NORGES BANK Non-US, Index-like | $335,927,585,220 18 held | NVDA, GOOGL, AAPL |
| 2 | Capital Research Global Investors Adviser, Diversified active | $232,942,202,371 18 held | NVDA, GOOGL, MSFT |
| 3 | Capital World Investors Adviser, Diversified active | $169,258,120,872 18 held | GOOGL, META, NVDA |
| 4 | Berkshire Hathaway Inc Insurer, Concentrated | $136,222,385,302 3 held | AAPL, GOOGL, KO |
| 5 | Amundi Holding company, Index-like | $129,091,061,039 20 held | NVDA, AAPL, GOOGL |
| 6 | Capital International Investors Adviser, Diversified active | $111,530,612,836 17 held | GOOGL, MSFT, NVDA |
| 7 | AMERIPRISE FINANCIAL INC Adviser, Diversified active | $100,583,542,057 20 held | NVDA, GOOGL, AAPL |
| 8 | Fisher Asset Management, LLC Adviser, Diversified active | $94,774,253,485 20 held | NVDA, AAPL, GOOGL |
| 9 | HSBC HOLDINGS PLC Unknown, Index-like | $71,993,750,123 20 held | NVDA, GOOGL, AAPL |
| 10 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Registered adviser, Diversified active | $65,266,849,527 19 held | NVDA, GOOGL, AAPL |
Fund Ownership of PBYI by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 10.74% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 2.67% | 1,379,276 |
| Index ETFs | 8.07% | 4,166,713 |
| Active ETFs | 1.81% | 933,839 |
| Active funds | 9.64% | 4,975,799 |
| Unclassified | 4.36% | 2,249,078 |
| All registered funds | 26.55% | 13,704,705 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Small ACORN CAPITAL ADVISORS, LLC | $33,504,834 | 10.41% | 4,131,299 | Shares | 2026-08-14 | |
| Mega BlackRock, Inc. Holding company | $30,856,406 | 9.58% | 3,804,736 | Shares | 2026-08-07 | |
| Mega AMERICAN CENTURY COMPANIES INC | $18,815,167 | 5.84% | 2,319,996 | Shares | 2026-08-12 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $16,654,071 | 5.17% | 2,053,523 | Shares | 2026-08-13 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $15,448,427 | 4.80% | 1,555,733 | Shares | 2026-11-04 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $14,891,687 | 4.62% | 1,836,213 | Shares | 2026-08-13 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $14,887,064 | 4.62% | 1,835,643 | Shares | 2026-08-13 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $14,805,607 | 4.60% | 1,825,599 | Shares | 2026-08-13 | |
| Large LSV ASSET MANAGEMENT Registered adviser | $13,121,825 | 4.08% | 1,617,981 | Shares | 2026-08-06 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $10,862,574 | 3.37% | 1,339,405 | Shares | 2026-08-12 | |
| Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC Registered adviser | $9,113,880 | 2.83% | 1,123,783 | Shares | 2026-08-13 | |
| Mega STATE STREET CORP Bank | $7,722,058 | 2.40% | 952,165 | Shares | 2026-09-22 | |
| Mid RITHOLTZ WEALTH MANAGEMENT Registered adviser | $7,350,543 | 2.28% | 740,236 | Shares | 2026-11-05 | |
| Mid KENNEDY CAPITAL MANAGEMENT LLC Registered adviser | $7,082,081 | 2.20% | 873,253 | Shares | 2026-08-14 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC Registered adviser | $6,420,005 | 1.99% | 791,616 | Shares | 2026-08-14 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $5,881,304 | 1.83% | 725,192 | Shares | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $5,426,855 | 1.69% | 669,156 | Shares | 2026-08-14 | |
| Mega NORTHERN TRUST CORP Bank | $5,290,849 | 1.64% | 652,386 | Shares | 2026-08-13 | |
| Large Connor, Clark & Lunn Investment Management Ltd. Registered adviser | $5,214,292 | 1.62% | 642,946 | Shares | 2026-08-13 | |
| Mega UBS Group AG Bank | $5,164,131 | 1.60% | 636,761 | Shares | 2026-08-13 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $4,884,166 | 1.52% | 602,240 | Shares | 2026-08-14 | |
| Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser | $4,318,169 | 1.34% | 532,450 | Shares | 2026-08-13 | |
| Mega SEI INVESTMENTS CO Holding company | $3,395,405 | 1.05% | 418,669 | Shares | 2026-08-14 | |
| Mega Bank of New York Mellon Corp Bank | $3,230,357 | 1.00% | 325,313 | Shares | 2026-11-05 | |
| Small GLOBEFLEX CAPITAL L P Registered adviser | $3,104,564 | 0.96% | 382,807 | Shares | 2026-08-12 | |
| Mega D. E. Shaw & Co., Inc. | $2,565,541 | 0.80% | 316,343 | Shares | 2026-08-14 | |
| Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM Benefit plan | $2,506,849 | 0.78% | 309,106 | Shares | 2026-08-10 | |
| Mega Invesco Ltd. Adviser | $2,441,124 | 0.76% | 301,002 | Shares | 2026-08-14 | |
| Mega Russell Investments Group, Ltd. | $2,207,817 | 0.69% | 272,234 | Shares | 2026-08-06 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $2,182,157 | 0.68% | 269,070 | Shares | 2026-08-13 | |
| Mega MORGAN STANLEY Holding company | $2,154,580 | 0.67% | 265,670 | Shares | 2026-08-13 | |
| Large FEDERATED HERMES, INC. Adviser | $2,033,712 | 0.63% | 250,766 | Shares | 2026-08-12 | |
| Large Empowered Funds, LLC Registered adviser | $1,786,762 | 0.55% | 220,316 | Shares | 2026-08-17 | |
| Large PANAGORA ASSET MANAGEMENT INC Registered adviser | $1,764,289 | 0.55% | 217,545 | Shares | 2026-08-06 | |
| Large PRUDENTIAL FINANCIAL INC Insurer | $1,732,287 | 0.54% | 213,599 | Shares | 2026-08-12 | |
| Mega FMR LLC Holding company | $1,714,810 | 0.53% | 211,444 | Shares | 2026-08-13 | |
| Mega JPMORGAN CHASE & CO Bank | $1,713,958 | 0.53% | 211,339 | Shares | 2026-08-12 | |
| Large STATE OF WISCONSIN INVESTMENT BOARD Benefit plan | $1,526,561 | 0.47% | 188,232 | Shares | 2026-08-14 | |
| Small Haven Private, LLC Registered adviser | $1,456,731 | 0.45% | 146,700 | Shares | 2026-10-27 | |
| Mega FRANKLIN RESOURCES INC Adviser | $1,394,999 | 0.43% | 172,010 | Shares | 2026-08-13 | |
| Mid Prospera Financial Services Inc | $1,287,559 | 0.40% | 158,762 | Shares | 2026-07-15 | |
| Mid OpenArc Corporate Advisory, LLC Registered adviser | $1,187,866 | 0.37% | 119,624 | Shares | 2026-10-21 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $1,140,160 | 0.35% | 140,587 | Shares | 2026-08-14 | |
| Small SummerHaven Investment Management, LLC | $1,135,147 | 0.35% | 114,315 | Shares | 2026-10-19 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $1,055,970 | 0.33% | 130,206 | Shares | 2026-08-11 | |
| Small Round Rock Advisors LLC Registered adviser | $1,045,476 | 0.32% | 128,912 | Shares | 2026-08-12 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $1,040,050 | 0.32% | 128,243 | Shares | 2026-08-14 | |
| Mega WELLINGTON MANAGEMENT GROUP LLP Holding company | $1,022,596 | 0.32% | 126,091 | Shares | 2026-08-14 | |
| Large STRS OHIO Benefit plan | $1,006,902 | 0.31% | 101,400 | Shares | 2026-10-30 | |
| Mega Creative Planning Registered adviser | $753,994 | 0.23% | 75,931 | Shares | 2026-11-02 | |
| Mid EVERGREEN CAPITAL MANAGEMENT LLC Registered adviser | $731,562 | 0.23% | 73,672 | Shares | 2026-10-23 | |
| Mega Nuveen, LLC | $667,436 | 0.21% | 82,298 | Shares | 2026-08-11 | |
| Large Vise Technologies, Inc. | $663,304 | 0.21% | 66,798 | Shares | 2026-10-29 | |
| Mega CANADA PENSION PLAN INVESTMENT BOARD Non-US | $596,085 | 0.19% | 73,500 | Shares | 2026-08-14 | |
| Large Trexquant Investment LP Registered adviser | $585,728 | 0.18% | 72,223 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $520,662 | 0.16% | 64,200 | Call | 2026-08-14 | |
| Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. Adviser | $496,778 | 0.15% | 61,255 | Shares | 2026-08-14 | |
| Small D'Orazio & Associates, Inc. Registered adviser | $480,065 | 0.15% | 48,345 | Shares | 2026-11-04 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $466,406 | 0.14% | 57,510 | Shares | 2026-08-12 | |
| Mid Kathmere Capital Management, LLC Registered adviser | $396,534 | 0.12% | 39,933 | Shares | 2026-10-20 | |
| Mega Vanguard Global Advisers, LLC Registered adviser | $375,225 | 0.12% | 46,267 | Shares | 2026-08-13 | |
| Small Baron Wealth Management LLC Registered adviser | $354,649 | 0.11% | 35,715 | Shares | 2026-10-27 | |
| Mega DEUTSCHE BANK AG\ Non-US | $350,287 | 0.11% | 43,192 | Shares | 2026-08-07 | |
| Large Man Group plc | $336,613 | 0.10% | 41,506 | Shares | 2026-08-14 | |
| Mid WINTON GROUP Ltd | $328,527 | 0.10% | 40,509 | Shares | 2026-08-07 | |
| Mid XTX Topco Ltd | $326,800 | 0.10% | 40,296 | Shares | 2026-08-14 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $304,984 | 0.09% | 37,606 | Shares | 2026-08-14 | |
| Small EntryPoint Capital, LLC Registered adviser | $303,200 | 0.09% | 37,386 | Shares | 2026-08-13 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $294,741 | 0.09% | 36,343 | Shares | 2026-08-14 | |
| Mega LPL Financial LLC Broker-dealer | $280,095 | 0.09% | 34,537 | Shares | 2026-08-07 | |
| Large Universal- Beteiligungs- und Servicegesellschaft mbH | $279,673 | 0.09% | 34,485 | Shares | 2026-08-06 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $257,468 | 0.08% | 31,747 | Shares | 2026-08-14 | |
| Mega ENVESTNET ASSET MANAGEMENT INC Registered adviser | $236,730 | 0.07% | 29,190 | Shares | 2026-09-23 | |
| Small C2C Wealth Management, LLC Registered adviser | $234,546 | 0.07% | 23,620 | Shares | 2026-10-20 | |
| Mid MARTINGALE ASSET MANAGEMENT L P Registered adviser | $205,702 | 0.06% | 25,364 | Shares | 2026-08-13 | |
| Mid Metis Global Partners, LLC Registered adviser | $204,891 | 0.06% | 25,264 | Shares | 2026-08-10 | |
| Large MetLife Investment Management, LLC Registered adviser | $201,720 | 0.06% | 24,873 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $195,451 | 0.06% | 24,100 | Put | 2026-08-14 | |
| Mid BAILARD, INC. Registered adviser | $179,733 | 0.06% | 18,100 | Shares | 2026-10-13 | |
| Mid PRELUDE CAPITAL MANAGEMENT, LLC Registered adviser | $174,754 | 0.05% | 21,548 | Shares | 2026-08-14 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $173,229 | 0.05% | 21,360 | Shares | 2026-08-14 | |
| Small One Wealth Advisors, LLC Registered adviser | $170,950 | 0.05% | 21,079 | Shares | 2026-08-06 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $165,306 | 0.05% | 20,383 | Shares | 2026-08-14 | |
| Large Lido Advisors, LLC Registered adviser | $149,208 | 0.05% | 15,026 | Shares | 2026-11-04 | |
| Mega JANE STREET GROUP, LLC | $141,925 | 0.04% | 17,500 | Call | 2026-08-14 | |
| Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $139,993 | 0.04% | 14,098 | Shares | 2026-10-13 | |
| Micro Spark Investment Management LLC Registered adviser | $137,870 | 0.04% | 17,000 | Shares | 2026-08-10 | |
| Small PERKINS CAPITAL MANAGEMENT INC Registered adviser | $133,062 | 0.04% | 13,400 | Shares | 2026-11-02 | |
| Large Police & Firemen's Retirement System of New Jersey | $127,481 | 0.04% | 15,719 | Shares | 2026-07-23 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $125,510 | 0.04% | 15,476 | Shares | 2026-08-14 | |
| Large Mariner, LLC Registered adviser | $120,587 | 0.04% | 14,869 | Shares | 2026-08-13 | |
| Small Abel Hall, LLC | $114,393 | 0.04% | 11,520 | Shares | 2026-10-19 | |
| Mid Caprock Group, LLC | $112,420 | 0.03% | 13,862 | Shares | 2026-07-27 | |
| Mid TOCQUEVILLE ASSET MANAGEMENT L.P. Registered adviser | $107,960 | 0.03% | 13,312 | Shares | 2026-08-10 | |
| Mid State of Alaska, Department of Revenue | $107,580 | 0.03% | 10,834 | Shares | 2026-10-15 | |
| Mid Ethic Inc. Registered adviser | $102,358 | 0.03% | 10,308 | Shares | 2026-11-03 | |
| Large OSAIC HOLDINGS, INC. Holding company | $98,690 | 0.03% | 12,169 | Shares | 2026-08-14 | |
| Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Non-US | $97,774 | 0.03% | 12,056 | Shares | 2026-09-09 | |
| Small R Squared Ltd | $97,247 | 0.03% | 11,991 | Shares | 2026-08-05 | |
| Mid IFP Advisors, Inc Registered adviser | $94,037 | 0.03% | 9,470 | Shares | 2026-10-16 |
Showing the top 100 of 161 holders. Create a free account to see every holder, past quarters, search, filters and CSV export.