PBYI
Puma Biotechnology Inc
NASDAQ: PBYI · HEALTHCARE · BIOTECHNOLOGY
$10.62
-2.75% today
Updated 2026-10-28
Market cap
$568.85M
P/E ratio
21.61
P/S ratio
2.46x
EPS (TTM)
$0.51
Dividend yield
—
52W range
$5 – $12
Volume
0.3M
Puma Biotechnology Inc (PBYI) Insider transactions
Net insider activity
Net buying (2,043,677 shares)
Buy transactions
48
Sell transactions
52
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-09-14 | WILSON, TROY EDWARD | Director | Sale | 5,000 | $9.10 | $45500.00 |
| 2026-09-14 | CESANO, ALESSANDRA | Director | Sale | 50,000 | — | — |
| 2026-09-14 | CESANO, ALESSANDRA | Director | Sale | 62,150 | $9.12 | $566994.45 |
| 2026-09-14 | CESANO, ALESSANDRA | Director | Buy | 50,000 | $2.93 | $146500.00 |
| 2026-07-06 | NOUGUES, MAXIMO F | Chief Financial Officer | Sale | 9,386 | $8.26 | $77556.52 |
| 2026-07-06 | HUNT, DOUGLAS M | See Remarks | Sale | 8,460 | $8.26 | $69904.98 |
| 2026-07-06 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Sale | 44,058 | $8.26 | $364051.25 |
| 2026-06-12 | WILSON, TROY EDWARD | Director | Sale | 10,800 | $7.20 | $77748.12 |
| 2026-06-12 | STUGLIK, BRIAN M | Director | Sale | 8,100 | $7.20 | $58311.09 |
| 2026-06-12 | SENDEROWICZ, ADRIAN | Director | Sale | 27,000 | $7.20 | $194310.90 |
| 2026-06-12 | MOYES, JAY M | Director | Sale | 22,000 | $7.22 | $158796.00 |
| 2026-06-12 | DORVAL, ALLISON | Director | Sale | 11,610 | $7.20 | $83579.23 |
| 2026-06-11 | WILSON, TROY EDWARD | Director | Buy | 27,000 | — | — |
| 2026-06-11 | STUGLIK, BRIAN M | Director | Buy | 27,000 | — | — |
| 2026-06-11 | SENDEROWICZ, ADRIAN | Director | Buy | 27,000 | — | — |
| 2026-06-11 | MOYES, JAY M | Director | Buy | 27,000 | — | — |
| 2026-06-11 | MILLER, MICHAEL PATRICK | Director | Buy | 27,000 | — | — |
| 2026-06-11 | DORVAL, ALLISON | Director | Buy | 27,000 | — | — |
| 2026-06-11 | CESANO, ALESSANDRA | Director | Buy | 27,000 | — | — |
| 2026-02-18 | NOUGUES, MAXIMO F | Chief Financial Officer | Buy | 66,541 | — | — |
| 2026-02-18 | NOUGUES, MAXIMO F | Chief Financial Officer | Buy | 46,739 | — | — |
| 2026-02-18 | HUNT, DOUGLAS M | See Remarks | Buy | 70,321 | — | — |
| 2026-02-18 | HUNT, DOUGLAS M | See Remarks | Buy | 49,394 | — | — |
| 2026-02-18 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Buy | 227,474 | — | — |
| 2026-02-18 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Buy | 159,778 | — | — |
| 2026-01-07 | NOUGUES, MAXIMO F | Chief Financial Officer | Sale | 6,405 | $5.88 | $37654.99 |
| 2026-01-07 | HUNT, DOUGLAS M | See Remarks | Sale | 5,014 | $5.88 | $29477.31 |
| 2026-01-07 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Sale | 18,012 | $5.88 | $105892.55 |
| 2026-01-06 | NOUGUES, MAXIMO F | Chief Financial Officer | Sale | 4,540 | $5.84 | $26531.76 |
| 2026-01-06 | HUNT, DOUGLAS M | See Remarks | Sale | 3,973 | $5.84 | $23218.21 |
| 2026-01-06 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Sale | 16,938 | $5.84 | $98985.67 |
| 2025-11-11 | MILLER, MICHAEL PATRICK | Director | Sale | 20,000 | $4.86 | $97228.00 |
| 2025-07-18 | CESANO, ALESSANDRA | Director | Sale | 27,000 | $3.37 | $90909.00 |
| 2025-07-09 | NOUGUES, MAXIMO F | Chief Financial Officer | Sale | 3,935 | $3.54 | $13910.23 |
| 2025-07-09 | HUNT, DOUGLAS M | See Remarks | Sale | 3,443 | $3.54 | $12171.01 |
| 2025-07-09 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Sale | 21,580 | $3.54 | $76285.30 |
| 2025-07-08 | NOUGUES, MAXIMO F | Chief Financial Officer | Sale | 5,587 | $3.53 | $19738.87 |
| 2025-07-08 | HUNT, DOUGLAS M | See Remarks | Sale | 4,374 | $3.53 | $15453.34 |
| 2025-07-08 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Sale | 25,592 | $3.53 | $90416.54 |
| 2025-06-13 | WILSON, TROY EDWARD | Director | Sale | 10,800 | $3.40 | $36720.00 |
| 2025-06-13 | STUGLIK, BRIAN M | Director | Sale | 8,100 | $3.39 | $27459.00 |
| 2025-06-13 | SENDEROWICZ, ADRIAN | Director | Sale | 27,000 | $3.40 | $91800.00 |
| 2025-06-13 | MOYES, JAY M | Director | Sale | 22,000 | $3.40 | $74800.00 |
| 2025-06-13 | DORVAL, ALLISON | Director | Sale | 11,610 | $3.40 | $39474.00 |
| 2025-06-13 | CESANO, ALESSANDRA | Director | Sale | 12,150 | $3.40 | $41310.00 |
| 2025-06-11 | WILSON, TROY EDWARD | Director | Buy | 27,000 | — | — |
| 2025-06-11 | STUGLIK, BRIAN M | Director | Buy | 27,000 | — | — |
| 2025-06-11 | SENDEROWICZ, ADRIAN | Director | Buy | 27,000 | — | — |
| 2025-06-11 | MOYES, JAY M | Director | Buy | 27,000 | — | — |
| 2025-06-11 | MILLER, MICHAEL PATRICK | Director | Buy | 27,000 | — | — |
| 2025-06-11 | DORVAL, ALLISON | Director | Buy | 27,000 | — | — |
| 2025-06-11 | CESANO, ALESSANDRA | Director | Buy | 27,000 | — | — |
| 2025-02-07 | NOUGUES, MAXIMO F | Chief Financial Officer | Buy | 85,067 | — | — |
| 2025-02-07 | NOUGUES, MAXIMO F | Chief Financial Officer | Buy | 61,456 | — | — |
| 2025-02-07 | LUDWIG, JEFFREY JEROME | Chief Commercial Officer | Buy | 66,221 | — | — |
| 2025-02-07 | LUDWIG, JEFFREY JEROME | Chief Commercial Officer | Buy | 47,841 | — | — |
| 2025-02-07 | HUNT, DOUGLAS M | See Remarks | Buy | 66,604 | — | — |
| 2025-02-07 | HUNT, DOUGLAS M | See Remarks | Buy | 48,117 | — | — |
| 2025-02-07 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Buy | 274,622 | — | — |
| 2025-02-07 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Buy | 198,399 | — | — |
| 2025-01-02 | NOUGUES, MAXIMO F | Chief Financial Officer | Sale | 10,227 | $3.15 | $32232.44 |
| 2025-01-02 | LUDWIG, JEFFREY JEROME | Chief Commercial Officer | Sale | 9,437 | $3.15 | $29742.59 |
| 2025-01-02 | HUNT, DOUGLAS M | See Remarks | Sale | 8,633 | $3.15 | $27208.63 |
| 2025-01-02 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Sale | 33,841 | $3.15 | $106656.68 |
| 2024-08-12 | MILLER, MICHAEL PATRICK | Director | Sale | 23,358 | $3.49 | $81465.70 |
| 2024-07-17 | NOUGUES, MAXIMO F | Chief Financial Officer | Sale | 4,156 | $3.70 | $15381.77 |
| 2024-07-17 | LUDWIG, JEFFREY JEROME | Chief Commercial Officer | Sale | 2,598 | $3.70 | $9615.46 |
| 2024-07-17 | HUNT, DOUGLAS M | See Remarks | Sale | 3,637 | $3.70 | $13460.90 |
| 2024-07-17 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Sale | 21,920 | $3.70 | $81128.11 |
| 2024-07-02 | NOUGUES, MAXIMO F | Chief Financial Officer | Sale | 5,295 | $3.27 | $17306.71 |
| 2024-07-02 | LUDWIG, JEFFREY JEROME | Chief Commercial Officer | Sale | 6,051 | $3.27 | $19777.69 |
| 2024-07-02 | HUNT, DOUGLAS M | See Remarks | Sale | 4,349 | $3.27 | $14214.71 |
| 2024-07-02 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Sale | 18,885 | $3.27 | $61725.62 |
| 2024-06-18 | WILSON, TROY EDWARD | Director | Buy | 27,000 | — | — |
| 2024-06-18 | STUGLIK, BRIAN M | Director | Buy | 27,000 | — | — |
| 2024-06-18 | SENDEROWICZ, ADRIAN | Director | Buy | 27,000 | — | — |
| 2024-06-18 | MOYES, JAY M | Director | Buy | 27,000 | — | — |
| 2024-06-18 | MILLER, MICHAEL PATRICK | Director | Buy | 27,000 | — | — |
| 2024-06-18 | DORVAL, ALLISON | Director | Buy | 27,000 | — | — |
| 2024-06-18 | CESANO, ALESSANDRA | Director | Buy | 27,000 | — | — |
| 2024-06-13 | WILSON, TROY EDWARD | Director | Sale | 27,000 | $3.33 | $89901.90 |
| 2024-06-13 | STUGLIK, BRIAN M | Director | Sale | 9,900 | $3.39 | $33528.33 |
| 2024-06-13 | SENDEROWICZ, ADRIAN | Director | Sale | 27,000 | $3.33 | $89818.20 |
| 2024-06-13 | MOYES, JAY M | Director | Sale | 22,000 | $3.34 | $73466.80 |
| 2024-06-13 | DORVAL, ALLISON | Director | Sale | 11,000 | $3.37 | $37096.40 |
| 2024-03-15 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Buy | 9,047 | — | — |
| 2024-03-15 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Buy | 6,577 | — | — |
| 2024-02-12 | WONG, ALVIN F | Chief Scientific Officer | Buy | 59,946 | — | — |
| 2024-02-12 | WONG, ALVIN F | Chief Scientific Officer | Buy | 43,307 | — | — |
| 2024-02-12 | NOUGUES, MAXIMO F | Chief Financial Officer | Buy | 59,946 | — | — |
| 2024-02-12 | NOUGUES, MAXIMO F | Chief Financial Officer | Buy | 43,307 | — | — |
| 2024-02-12 | LUDWIG, JEFFREY JEROME | Chief Commercial Officer | Buy | 37,466 | — | — |
| 2024-02-12 | LUDWIG, JEFFREY JEROME | Chief Commercial Officer | Buy | 27,067 | — | — |
| 2024-02-12 | HUNT, DOUGLAS M | See Remarks | Buy | 52,452 | — | — |
| 2024-02-12 | HUNT, DOUGLAS M | See Remarks | Buy | 37,894 | — | — |
| 2024-02-12 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Buy | 222,573 | — | — |
| 2024-02-12 | AUERBACH, ALAN H | Director, President and CEO, 10% Owner | Buy | 160,796 | — | — |
| 2024-01-03 | WONG, ALVIN F | Chief Scientific Officer | Sale | 7,733 | $4.49 | $34689.46 |
| 2024-01-03 | NOUGUES, MAXIMO F | Chief Financial Officer | Sale | 15,682 | $4.49 | $70347.88 |
| 2024-01-03 | LUDWIG, JEFFREY JEROME | Chief Commercial Officer | Sale | 12,956 | $4.49 | $58119.32 |
Frequently asked questions
Are PBYI insiders buying or selling?
Over the transactions on record, PBYI insiders have been net sellers, with about $3.74M in stock sold across 52 sales, against 1 open-market purchase.
Does insider selling at PBYI mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which PBYI insiders are selling the most?
Recent selling is concentrated in a few names. AUERBACH, ALAN H accounts for the largest share on record, with about $985141.72 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.