Puma Biotechnology, Inc. 13F holders
160 funds reported a position in Puma Biotechnology, Inc. in their 13F for the quarter ended 30 June 2026, together 38.7 million shares worth $313.6 million. Against the quarter before, 19 opened a position, 60 added, 51 trimmed and 15 sold out; together they bought a net 816,534 shares. The largest holders: Acorn Capital Advisors, LLC, BlackRock, Inc. and American Century Companies Inc.
Funds holding160+3 on Q1 2026
Shares they held38.7Mworth $313.6 million
Net bought on the quarter816,534 sharesabout $6.6 million at the funds' values
Funds buying to selling79 to 66opened or added, to cut or sold
Opened 19Added 60Held 29Trimmed 51Sold out 15
What each fund did in PBYI against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in PBYI in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,241 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 34 reported a position in Puma Biotechnology, Inc.: 4 opened one, 13 added, 4 trimmed and 4 sold out, a net 110,774 shares bought.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 5 reported a position in Puma Biotechnology, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Renaissance Technologies, 1.8 million shares worth $14.9 million, 0.0% of its reported book. Sold out: Citadel Advisors. In the quarter, 3 funds added or opened a position and 3 trimmed or sold out; together they sold a net 542,177 shares, about $4.4 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies | 1,836,213 | $14.9 million | 0.0% | -106,200 | trimmed | 30 June 2026 | 13F |
| Geode Capital Management | 1,339,405 | $10.9 million | 0.0% | +322,063 | added | 30 June 2026 | 13F |
| Millennium Management | 602,240 | $4.9 million | 0.0% | -875,279 | trimmed | 30 June 2026 | 13F |
| FMR LLC | 211,444 | $1.7 million | 0.0% | +19,611 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 140,587 | $1.1 million | 0.0% | +127,587 | added | 30 June 2026 | 13F |
| Citadel Advisors | 0 | $0 | 0.0% | -29,959 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| Acorn Capital Advisors, LLC | 4,131,299 | 10.68% | $33.5 million | 9.14% | no change | 13F |
| BlackRock, Inc. | 3,804,736 | 9.84% | $30.9 million | 0.00% | +205,784 | 13F |
| American Century Companies Inc. | 2,319,996 | 6.00% | $18.8 million | 0.01% | +403,650 | 13F |
| Acadian Asset Management LLC | 2,053,523 | 5.31% | $16.6 million | 0.02% | +11,764 | 13F |
| Renaissance Technologies LLC | 1,836,213 | 4.75% | $14.9 million | 0.02% | -106,200 | 13F |
| Vanguard Capital Management LLC | 1,835,643 | 4.75% | $14.9 million | 0.00% | +17,962 | 13F |
| Vanguard Portfolio Management LLC | 1,825,599 | 4.72% | $14.8 million | 0.00% | +90,950 | 13F |
| LSV Asset Management | 1,617,981 | 4.18% | $13.1 million | 0.02% | +435,113 | 13F |
| Dimensional Fund Advisors LP | 1,518,014 | 3.93% | $12.3 million | 0.00% | +81,908 | 13F |
| Geode Capital Management, LLC | 1,339,405 | 3.46% | $10.9 million | 0.00% | +322,063 | 13F |
| O'shaughnessy Asset Management, LLC | 1,123,783 | 2.91% | $9.1 million | 0.04% | -14,386 | 13F |
| State Street Corp. | 952,165 | 2.46% | $7.7 million | 0.00% | +34,575 | 13F |
| Kennedy Capital Management LLC | 873,253 | 2.26% | $7.1 million | 0.12% | -16,348 | 13F |
| Bridgeway Capital Management, LLC | 791,616 | 2.05% | $6.4 million | 0.11% | +16,275 | 13F |
| Ritholtz Wealth Management | 749,798 | 1.94% | $6.1 million | 0.09% | -24,510 | 13F |
| AQR Capital Management LLC | 725,192 | 1.88% | $5.9 million | 0.00% | -75,002 | 13F |
| Goldman Sachs Group Inc. | 669,156 | 1.73% | $5.4 million | 0.00% | -563 | 13F |
| Northern Trust Corp. | 652,386 | 1.69% | $5.3 million | 0.00% | +10,633 | 13F |
| Connor, Clark & Lunn Investment Management Ltd. | 642,946 | 1.66% | $5.2 million | 0.01% | -139,852 | 13F |
| UBS Group AG | 636,761 | 1.65% | $5.2 million | 0.00% | +102,534 | 13F |
| Millennium Management LLC | 602,240 | 1.56% | $4.9 million | 0.00% | -875,279 | 13F |
| Arrowstreet Capital, Limited Partnership | 532,450 | 1.38% | $4.3 million | 0.00% | -5,705 | 13F |
| Sei Investments Co. | 418,669 | 1.08% | $3.4 million | 0.00% | -89,513 | 13F |
| Globeflex Capital L P | 382,807 | 0.99% | $3.1 million | 0.40% | +33,156 | 13F |
| Bank of New York Mellon Corp | 360,734 | 0.93% | $2.9 million | 0.00% | +12,853 | 13F |
| D. E. Shaw & Co., Inc. | 316,343 | 0.82% | $2.6 million | 0.00% | -34,892 | 13F |
| State Board of Administration of Florida Retirement System | 309,106 | 0.80% | $2.5 million | 0.00% | +36,216 | 13F |
| Invesco Ltd. | 301,002 | 0.78% | $2.4 million | 0.00% | +205,958 | 13F |
| Russell Investments Group, Ltd. | 272,234 | 0.70% | $2.2 million | 0.00% | +20,581 | 13F |
| Vanguard Fiduciary Trust Co. | 269,070 | 0.70% | $2.2 million | 0.00% | +17,387 | 13F |
| Morgan Stanley | 265,670 | 0.69% | $2.2 million | 0.00% | -94,072 | 13F |
| Federated Hermes, Inc. | 250,766 | 0.65% | $2.0 million | 0.00% | +13,051 | 13F |
| Empowered Funds, LLC | 220,316 | 0.57% | $1.8 million | 0.01% | +16,275 | 13F |
| Panagora Asset Management Inc. | 217,545 | 0.56% | $1.8 million | 0.01% | +22,658 | 13F |
| Prudential Financial Inc. | 213,599 | 0.55% | $1.7 million | 0.00% | -39,440 | 13F |
| JPMorgan Chase & Co. | 211,339 | 0.55% | $1.7 million | 0.00% | -9,385 | 13F |
| FMR LLC | 211,444 | 0.55% | $1.7 million | 0.00% | +19,611 | 13F |
| State of Wisconsin Investment Board | 188,232 | 0.49% | $1.5 million | 0.00% | -20,386 | 13F |
| Franklin Resources Inc. | 172,010 | 0.44% | $1.4 million | 0.00% | -43,381 | 13F |
| Prospera Financial Services Inc | 158,762 | 0.41% | $1.3 million | 0.02% | -14,289 | 13F |
| Haven Private, LLC | 148,448 | 0.38% | $1.2 million | 0.46% | -6,812 | 13F |
| Two Sigma Investments, LP | 140,587 | 0.36% | $1.1 million | 0.00% | +127,587 | 13F |
| First Trust Advisors LP | 130,206 | 0.34% | $1.1 million | 0.00% | +6,693 | 13F |
| Round Rock Advisors LLC | 128,912 | 0.33% | $1.0 million | 0.14% | no change | 13F |
| Charles Schwab Investment Management Inc. | 128,243 | 0.33% | $1.0 million | 0.00% | +12,328 | 13F |
| Wellington Management Group LLP | 126,091 | 0.33% | $1.0 million | 0.00% | new | 13F |
| Strs Ohio | 84,600 | 0.22% | $686,106 | 0.00% | -6,900 | 13F |
| Nuveen, LLC | 82,298 | 0.21% | $667,437 | 0.00% | +3,197 | 13F |
| Evergreen Capital Management LLC | 73,731 | 0.19% | $597,960 | 0.01% | -22,269 | 13F |
| Canada Pension Plan Investment Board | 73,500 | 0.19% | $596,085 | 0.00% | +50,700 | 13F |
The 50 largest of the 160 funds that reported a position in PBYI in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 6 October 2026 | 13D/A | Alan H. Auerbach | 8.6 million | 16.0% | 4 October 2026 | The information set forth or incorporated in Item 3 above is incorporated herein by reference. From time to time, Mr. Auerbach may acquire beneficial ownership of additional shares of Common Stock or other securities of the Issuer by purcha | EDGAR |
| 27 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 17 August 2026 | 692 | $8.83 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.