Company · Ownership research

PUMA BIOTECHNOLOGY, INC. PBYI

CIK 0001401667

Form 4 transactions dated Nov 1, 2023 to Nov 12, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through Sep 16, 2026.

Insider purchases & sales

Purchased: $0.00
Sold: $4.04M

Nov 1, 2023 – Sep 16, 2026
Available records · partial months are marked ·

202410 of 19 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Aug 12, 2024	MILLER MICHAEL PATRICK Director	Sale	$81.47K 23,358 shares sold	33.20% sold Direct holding	▾
Jul 17, 2024	NOUGUES MAXIMO F Chief Financial Officer	Sale10b5-1 footnote	$15.38K 4,156 shares sold	2.49% sold Direct holding	▾
Jul 17, 2024	Ludwig Jeffrey Jerome Chief Commercial Officer	Sale10b5-1 footnote	$9.62K 2,598 shares sold	2.15% sold Direct holding	▾
Jul 17, 2024	HUNT DOUGLAS M See Remarks	Sale10b5-1 footnote	$13.46K 3,637 shares sold	2.66% sold Direct holding	▾
Jul 17, 2024	AUERBACH ALAN H President and CEO · Director · 10% owner	Sale10b5-1 footnote	$81.13K 21,920 shares sold	0.31% sold Direct holding	▾
Jul 2, 2024	NOUGUES MAXIMO F Chief Financial Officer	Sale10b5-1 footnote	$17.31K 5,295 shares sold	3.08% sold Direct holding	▾
Jul 2, 2024	Ludwig Jeffrey Jerome Chief Commercial Officer	Sale10b5-1 footnote	$19.78K 6,051 shares sold	4.76% sold Direct holding	▾
Jul 2, 2024	HUNT DOUGLAS M See Remarks	Sale10b5-1 footnote	$14.21K 4,349 shares sold	3.08% sold Direct holding	▾
Jul 2, 2024	AUERBACH ALAN H President and CEO · Director · 10% owner	Sale10b5-1 footnote	$61.73K 18,885 shares sold	0.27% sold Direct holding	▾
Jun 13, 2024	WILSON TROY EDWARD Director	Sale10b5-1 footnote	$89.90K 27,000 shares sold	98.72% sold Direct holding	▾

Showing 19 / 19 record groups in 2024. The complete set is available through the API.

PUMA BIOTECHNOLOGY, INC. · PBYI

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{"action":"list","ticker":"PBYI","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.