Based on data from the past 90 days ending December 12, 2025, Puma Biotechnology's three largest insider shareholders are Officer Douglas M Hunt (164.89K shares), Director Michael Patrick Miller (54.00K shares), Director Alessandra Cesano (41.85K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Alan H Auerbach | President And CEO | 7,180,901 | 10 Jul, 2025 |
| Maximo F Nougues | Chief Financial Officer | 204,229 | 10 Jul, 2025 |
| Douglas M Hunt | 164,894 | 10 Jul, 2025 | |
| Jeffrey Jerome Ludwig | Chief Commercial Officer | 156,792 | 11 Feb, 2025 |
| Alvin F Wong | Chief Scientific Officer | 141,241 | 14 Feb, 2024 |
| Richard Paul Bryce | See Remarks | 121,662 | 06 Apr, 2021 |
| Brian M Stuglik | 94,958 | 17 Jun, 2025 | |
| Allison Dorval | 75,390 | 17 Jun, 2025 | |
| Michael Patrick Miller | 54,000 | 13 Nov, 2025 | |
| Jay M Moyes | 53,322 | 17 Jun, 2025 | |
| Troy Edward Wilson | 43,550 | 17 Jun, 2025 | |
| Alessandra Cesano | 41,850 | 22 Jul, 2025 | |
| Ann Calby Miller | 40,732 | 17 Jun, 2021 | |
| Adrian Senderowicz | 27,000 | 17 Jun, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 11 Nov, 2025 | Michael Patrick Miller | Common Stock | D | 20,000 | $4.86 | 54,000 | D | S |
| 18 Jul, 2025 | Alessandra Cesano | Common Stock | D | 27,000 | $3.37 | 41,850 | D | S |
| 18 Jul, 2025 | Alessandra Cesano | - | - | 41,850 | D | |||
| 08 Jul, 2025 | Douglas M Hunt | Common Stock | D | 4,374 | $3.53 | 168,337 | D | S |
| 08 Jul, 2025 | Maximo F Nougues | Common Stock | D | 5,587 | $3.53 | 208,164 | D | S |
| 08 Jul, 2025 | Douglas M Hunt | - | - | 168,337 | D | |||
| 08 Jul, 2025 | Alan H Auerbach | Common Stock | D | 25,592 | $3.53 | 7,202,481 | D | S |
| 09 Jul, 2025 | Alan H Auerbach | Common Stock | D | 21,580 | $3.54 | 7,180,901 | D | S |
| 09 Jul, 2025 | Douglas M Hunt | - | - | 164,894 | D | |||
| 09 Jul, 2025 | Douglas M Hunt | Common Stock | D | 3,443 | $3.54 | 164,894 | D | S |
| 09 Jul, 2025 | Maximo F Nougues | Common Stock | D | 3,935 | $3.54 | 204,229 | D | S |
| 13 Jun, 2025 | Alessandra Cesano | Common Stock | D | 12,150 | $3.40 | 68,850 | D | S |
| 13 Jun, 2025 | Allison Dorval | Common Stock | D | 11,610 | $3.40 | 75,390 | D | S |
| 13 Jun, 2025 | Troy Edward Wilson | Common Stock | D | 10,800 | $3.40 | 43,550 | D | S |
| 13 Jun, 2025 | Jay M Moyes | Common Stock | D | 22,000 | $3.40 | 53,322 | D | S |
| 13 Jun, 2025 | Adrian Senderowicz | Common Stock | D | 27,000 | $3.40 | 27,000 | D | S |
| 13 Jun, 2025 | Brian M Stuglik | Common Stock | D | 8,100 | $3.39 | 94,958 | D | S |
| 11 Jun, 2025 | Allison Dorval | Common Stock | A | 27,000 | $0.00 | 87,000 | D | A |
| 11 Jun, 2025 | Brian M Stuglik | Common Stock | A | 27,000 | $0.00 | 103,058 | D | A |
| 11 Jun, 2025 | Alessandra Cesano | Common Stock | A | 27,000 | $0.00 | 81,000 | D | A |