Form4insider filings, from the source

Company · CIK 0001401667 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

PUMA BIOTECHNOLOGY, INC. · PBYI

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $1.1M · 5net −$1.1M
$10k$10k$100k$100k$1M$1MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 13Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 14, 2026 SForm 4 →Sep 16, 9:13 pm EDTTroy Edward WilsonDirector5,000$9.10$45,50054,750−8.37%10b5-1
Sep 14, 2026 SForm 4 →Sep 16, 9:06 pm EDTAlessandra CesanoDirector62,150$9.12$566,99456,700−52.3%10b5-1
Sep 14, 2026 MForm 4 →Sep 16, 9:06 pm EDTAlessandra CesanoDirector50,000$2.93$146,500118,850—10b5-1
Jul 6, 2026 SForm 4 →Jul 8, 8:21 pm EDTAlan H AuerbachPresident and CEO, Director, 10% Owner44,058$8.26$364,0517,261,671−0.60%10b5-1
Jul 6, 2026 SForm 4 →Jul 8, 8:19 pm EDTDouglas M HuntSee Remarks8,460$8.26$69,905196,841−4.12%10b5-1
Jul 6, 2026 SForm 4 →Jul 8, 8:18 pm EDTMaximo F NouguesChief Financial Officer9,386$8.26$77,557230,637−3.91%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 14, 2026 MForm 4 →Sep 16, 9:06 pm EDTAlessandra CesanoDirector50,000——50,000—10b5-1