Puma Biotechnology, Inc. (PBYI) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, the three largest insider holders of PBYI are Alan H Auerbach (President And Ceo, 7.31Mn shares), Maximo F Nougues (Chief Financial Officer, 240.02K shares), Douglas M Hunt (See Remarks, 205.30K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Alan H Auerbach President And Ceo 7,305,729 0 20 Feb, 2026
Maximo F Nougues Chief Financial Officer 240,023 0 20 Feb, 2026
Douglas M Hunt See Remarks 205,301 0 20 Feb, 2026
Jeffrey Jerome Ludwig Chief Commercial Officer 156,792 0 11 Feb, 2025
Alvin F Wong Chief Scientific Officer 141,241 0 14 Feb, 2024
Richard Paul Bryce See Remarks 121,662 0 06 Apr, 2021
Brian M Stuglik 94,958 0 17 Jun, 2025
Allison Dorval 75,390 0 17 Jun, 2025
Troy Edward Wilson 43,550 0 17 Jun, 2025
Alessandra Cesano 41,850 0 22 Jul, 2025
Ann Calby Miller 40,732 0 17 Jun, 2021
Adrian Senderowicz 27,000 0 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
18 Feb, 2026 Alan H Auerbach Common Stock A 159,778 $0.00 7,305,729 D A
18 Feb, 2026 Douglas M Hunt Common Stock A 49,394 $0.00 205,301 D A
18 Feb, 2026 Maximo F Nougues Common Stock A 46,739 $0.00 240,023 D A
18 Feb, 2026 Alan H Auerbach Stock Option (Right to Buy) A 227,474 $0.00 227,474 D A
18 Feb, 2026 Douglas M Hunt Stock Option (Right to Buy) A 70,321 $0.00 70,321 D A
18 Feb, 2026 Maximo F Nougues Stock Option (Right to Buy) A 66,541 $0.00 66,541 D A
06 Jan, 2026 Maximo F Nougues Common Stock D 4,540 $5.84 199,689 D S
06 Jan, 2026 Alan H Auerbach Common Stock D 16,938 $5.84 7,163,963 D S
06 Jan, 2026 Douglas M Hunt Common Stock D 3,973 $5.84 160,921 D S
07 Jan, 2026 Douglas M Hunt Common Stock D 5,014 $5.88 155,907 D S
07 Jan, 2026 Alan H Auerbach Common Stock D 18,012 $5.88 7,145,951 D S
07 Jan, 2026 Maximo F Nougues Common Stock D 6,405 $5.88 193,284 D S
18 Jul, 2025 Alessandra Cesano Common Stock D 27,000 $3.37 41,850 D S
08 Jul, 2025 Alan H Auerbach Common Stock D 25,592 $3.53 7,202,481 D S
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
09 Jul, 2025 Alan H Auerbach Common Stock D 21,580 $3.54 7,180,901 D S
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 Troy Edward Wilson Common Stock D 10,800 $3.40 43,550 D S