PBYI · Puma Biotechnology, Inc. · Shareholders & Ownership
Every disclosed holder of PBYI in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns PBYI
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 38,824,641 | 75.21% |
| Insiders (Forms 3, 4, 5) | 8,328,901 | 16.14% |
| 13D/G-only blocks | 3,940,052 | 7.63% |
| Remaining | 526,472 | 1.02% |
| Registered funds (N-PORT, not summed) | 14,175,861 | 27.46% |
Shares outstanding: 51,620,066, the issuer's latest cover-page count restated onto today's split basis.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of PBYI
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Alan H. Auerbach
13D
CIK 1358285 · Unknown · Oct 4, 2026
Item 4 purpose: none of the classified purposes
not summed
|
8,648,958 | ||
| 1.1 |
AUERBACH ALAN H
Insider
CIK 1358285 · Jul 6, 2026
Director, President and CEO, 10% Owner, issuer-wide
|
7,261,671 | ||
| 2 |
ACORN CAPITAL ADVISORS, LLC
13F
CIK 2054410 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,131,299 | ||
| 3 |
|
3,940,052 | ||
| 4 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,804,736 | ||
| 4.1 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
1,177,097 | ||
| 4.2 |
iShares Russell 2000 Value ETF
Fund
S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
336,311 | ||
| 4.3 |
BlackRock Advantage Small Cap Core Fund
Fund
S000039982 · Registered fund · Aug 31, 2026
BlackRock Funds, not summed
|
206,044 | ||
| 4.4 |
iShares Micro-Cap ETF
Fund
S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
147,162 | ||
| 4.5 |
Master Small Cap Index Series
Fund
S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
|
82,746 | ||
| 5 |
AMERICAN CENTURY COMPANIES INC
13F
CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,319,996 | ||
| 6 |
ACADIAN ASSET MANAGEMENT LLC
13F
CIK 916542 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,053,523 | ||
| 7 |
Avantis U.S. Small Cap Value ETF
Fund
S000066459 · Registered fund · May 31, 2026
American Century ETF Trust, not summed
|
1,924,360 | ||
| 8 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,836,213 | ||
| 9 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,835,643 | ||
| 10 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,825,599 | ||
| 11 |
LSV ASSET MANAGEMENT
13F
CIK 1050470 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,617,981 | ||
| 11.1 |
LSV Small Cap Value Fund
Fund
S000039922 · Registered fund · Jul 31, 2026
ADVISORS' INNER CIRCLE FUND, not summed
|
199,600 | ||
| 12 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,518,014 | ||
| 12.1 |
U.S. Targeted Value Portfolio
Fund
S000000970 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
221,297 | ||
| 12.2 |
U.S. SMALL CAP PORTFOLIO
Fund
S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
220,843 | ||
| 12.3 |
Dimensional U.S. Targeted Value ETF
Fund
S000070901 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
172,951 | ||
| 12.4 |
Dimensional U.S. Small Cap ETF
Fund
S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
170,404 | ||
| 12.5 |
U.S. SMALL CAP VALUE PORTFOLIO
Fund
S000000987 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
142,253 | ||
| 13 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,343,121 | ||
| 14 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,339,405 | ||
| 15 |
O'SHAUGHNESSY ASSET MANAGEMENT, LLC
13F
CIK 1423442 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,123,783 | ||
| 16 |
|
952,165 | ||
| 16.1 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
14,900 | ||
| 16.2 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
1,023 | ||
| 17 |
KENNEDY CAPITAL MANAGEMENT LLC
13F
CIK 884589 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
873,253 | ||
| 18 |
BRIDGEWAY CAPITAL MANAGEMENT, LLC
13F
CIK 1107261 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
791,616 | ||
| 18.1 |
Small-Cap Value Fund
Fund
S000004427 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
|
249,200 | ||
| 18.2 |
Ultra-Small Company Fund
Fund
S000004423 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
|
173,000 | ||
| 18.3 |
Ultra-Small Company Market Fund
Fund
S000004424 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
|
73,300 | ||
| 18.4 |
Omni Small-Cap Value Fund
Fund
S000033567 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
|
68,000 | ||
| 19 |
VANGUARD EXPLORER FUND
Fund
S000002578 · Registered fund · Jul 31, 2026
VANGUARD EXPLORER FUND, not summed
|
777,390 | ||
| 20 |
RITHOLTZ WEALTH MANAGEMENT
13F
CIK 1698218 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
749,798 | ||
| 21 |
AQR CAPITAL MANAGEMENT LLC
13F
CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
725,192 | ||
| 21.1 |
AQR Small Cap Multi-Style Fund
Fund
S000040064 · Registered fund · Jun 30, 2026
AQR Funds, not summed
|
115,961 | ||
| 21.2 |
AQR Small Cap Momentum Style Fund
Fund
S000025644 · Registered fund · Mar 31, 2026
AQR Funds, not summed
|
15,121 | ||
| 22 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
669,156 | ||
| 22.1 |
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund
S000048296 · Registered fund · Aug 31, 2026
Goldman Sachs ETF Trust, not summed
|
74,498 | ||
| 22.2 |
Goldman Sachs Small Cap Value Insights Fund
Fund
S000014929 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
72,534 | ||
| 22.3 |
Goldman Sachs Small Cap Equity Insights Fund
Fund
S000009329 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
63,845 | ||
| 22.4 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Aug 31, 2026
GOLDMAN SACHS TRUST, not summed
|
59,791 | ||
| 22.5 |
Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund
Fund
S000009355 · Registered fund · Jun 30, 2026
Goldman Sachs Variable Insurance Trust, not summed
|
28,220 | ||
| 23 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
652,386 | ||
| 23.1 |
Small Cap Value Fund
Fund
S000001246 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
267,945 | ||
| 23.2 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
21,215 | ||
| 24 |
Connor, Clark & Lunn Investment Management Ltd.
13F
CIK 1596800 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
642,946 | ||
| 25 |
|
636,761 | ||
| 26 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
602,240 | ||
| 27 |
VANGUARD STRATEGIC EQUITY FUND
Fund
S000002593 · Registered fund · Jun 30, 2026
VANGUARD HORIZON FUNDS, not summed
|
540,434 | ||
| 28 |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F
CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
532,450 | ||
| 29 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
437,741 | ||
| 30 |
SEI INVESTMENTS CO
13F
CIK 350894 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
418,669 | ||
| 30.1 |
SIIT SMALL CAP FUND
Fund
S000006772 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
|
37,000 | ||
| 30.2 |
SIIT EXTENDED MARKET INDEX FUND
Fund
S000035814 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
|
4,200 | ||
| 31 |
GLOBEFLEX CAPITAL L P
13F
CIK 921531 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
382,807 | ||
| 32 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
360,734 | ||
| 33 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
316,343 | ||
| 34 |
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM
13F
CIK 938076 · Pension or benefit plan · Jun 30, 2026
carried, not yet filed for the newest quarter
|
309,106 | ||
| 35 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
301,002 | ||
| 35.1 |
Invesco RAFI US 1500 Small-Mid ETF
Fund
S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
55,097 | ||
| 35.2 |
Invesco Russell 2000 Dynamic Multifactor ETF
Fund
S000064608 · Registered fund · May 31, 2026
Invesco Exchange-Traded Self-Indexed Fund Trust, not summed
|
4,661 | ||
| 35.3 |
Invesco Nasdaq Biotechnology ETF
Fund
S000072469 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
2,680 | ||
| 36 |
Russell Investments Group, Ltd.
13F
CIK 1692234 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
272,234 | ||
| 36.1 |
Tax-Managed U.S. Mid & Small Cap Fund
Fund
S000001571 · Registered fund · Jul 31, 2026
RUSSELL INVESTMENT CO, not summed
|
248,058 | ||
| 37 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
269,070 | ||
| 38 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
265,670 | ||
| 39 |
FEDERATED HERMES, INC.
13F
CIK 1056288 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
250,766 | ||
| 40 |
|
230,637 | ||
| 41 |
VANGUARD RUSSELL 2000 INDEX FUND
Fund
S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
|
221,052 | ||
| 42 |
Empowered Funds, LLC
13F
CIK 1592828 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
220,316 | ||
| 42.1 |
EA Bridgeway Omni Small-Cap Value ETF
Fund
S000078089 · Registered fund · Jun 30, 2026
EA Series Trust, not summed
|
220,316 | ||
| 43 |
PANAGORA ASSET MANAGEMENT INC
13F
CIK 883677 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
217,545 | ||
| 44 |
PRUDENTIAL FINANCIAL INC
13F
CIK 1137774 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
213,599 | ||
| 45 |
FMR LLC
13F
CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
211,444 | ||
| 45.1 |
Fidelity Small Cap Index Fund
Fund
S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
|
484,010 | ||
| 45.2 |
Fidelity Enhanced Small Cap Core ETF
Fund
S000081807 · Registered fund · Jun 30, 2026
Fidelity Covington Trust, not summed
|
177,567 | ||
| 45.3 |
Fidelity Extended Market Index Fund
Fund
S000006021 · Registered fund · Aug 31, 2026
Fidelity Concord Street Trust, not summed
|
163,465 | ||
| 45.4 |
Strategic Advisers Fidelity U.S. Total Stock Fund
Fund
S000061481 · Registered fund · Aug 31, 2026
Fidelity Rutland Square Trust II, not summed
|
142,558 | ||
| 45.5 |
Strategic Advisers U.S. Total Stock Fund
Fund
S000084926 · Registered fund · Aug 31, 2026
Fidelity Rutland Square Trust II, not summed
|
106,884 | ||
| 46 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
211,339 | ||
| 47 |
|
196,841 | ||
| 48 |
STATE OF WISCONSIN INVESTMENT BOARD
13F
CIK 854157 · Pension or benefit plan · Jun 30, 2026
carried, not yet filed for the newest quarter
|
188,232 | ||
| 49 |
FRANKLIN RESOURCES INC
13F
CIK 38777 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
172,010 | ||
| 49.1 |
Putnam Dynamic Asset Allocation Growth Fund
Fund
S000000780 · Registered fund · Jun 30, 2026
Putnam Asset Allocation Funds, not summed
|
18,340 | ||
| 49.2 |
Putnam Dynamic Asset Allocation Balanced Fund
Fund
S000000778 · Registered fund · Jun 30, 2026
Putnam Asset Allocation Funds, not summed
|
12,518 | ||
| 49.3 |
Franklin U.S. Small Cap Multifactor Index ETF
Fund
S000057202 · Registered fund · Jun 30, 2026
Franklin Templeton ETF Trust, not summed
|
3,276 | ||
| 49.4 |
Putnam Dynamic Asset Allocation Conservative Fund
Fund
S000000779 · Registered fund · Jun 30, 2026
Putnam Asset Allocation Funds, not summed
|
1,977 | ||
| 49.5 |
Putnam VT Global Asset Allocation Fund
Fund
S000003896 · Registered fund · Jun 30, 2026
Putnam Variable Trust, not summed
|
614 | ||
| 50 |
Prospera Financial Services Inc
13F
CIK 1541625 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
158,762 |
30 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 278 holders
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