NYSE:PBYI

Puma Biotechnology Stock Insider Trading

Healthcare > Biotechnology

Buy PBYI

*Your capital is at risk

$7.93

+0.0400 (+0.507%)

At Close: Jul 31, 2026

Puma Biotechnology Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -50.07. In total, the insiders bought 2.88M and sold 792.18K PBYI shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-50.07
● Buy	2.88M shares
● Sell	792.18K shares
43% Buy Activity Weak Positive Correlation
Sell Signal Medium Confidence Jul 06, 2026 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -50.07. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Jan 06, 2026 Sell	Common Stock S-Sale	Auerbach Alan H President And CEO	CEO / President	16 938 Value: $99.0K
Jan 06, 2026 Sell	Common Stock S-Sale	Hunt Douglas M See Remarks	Officer	3 973 Value: $23.2K
Nov 11, 2025 Sell	Common Stock S-Sale	Miller Michael Patrick Director	Director	20 000 Value: $97.2K
Jul 18, 2025 Sell	Common Stock S-Sale	Cesano Alessandra Director	Director	27 000 Value: $90.9K
Jul 18, 2025 Sell	Common Stock S-Sale	Cesano Alessandra Director	Director	27 000 Value: $90.9K
Jul 09, 2025 Sell	Common Stock S-Sale	Nougues Maximo F Chief Financial Officer	C-Suite Officer	3 935 Value: $13.9K
Jul 09, 2025 Sell	Common Stock S-Sale	Hunt Douglas M See Remarks	Officer	3 443 Value: $12.2K
Jul 09, 2025 Sell	Common Stock S-Sale	Auerbach Alan H President And CEO	CEO / President	21 580 Value: $76.3K
Jul 09, 2025 Sell	Common Stock S-Sale	Auerbach Alan H President And CEO	CEO / President	21 580 Value: $76.3K
Jul 09, 2025 Sell	Common Stock S-Sale	Hunt Douglas M See Remarks	Officer	3 443 Value: $12.2K
Jul 09, 2025 Sell	Common Stock S-Sale	Nougues Maximo F Chief Financial Officer	C-Suite Officer	3 935 Value: $13.9K
Jul 08, 2025 Sell	Common Stock S-Sale	Nougues Maximo F Chief Financial Officer	C-Suite Officer	5 587 Value: $19.7K
Jul 08, 2025 Sell	Common Stock S-Sale	Hunt Douglas M See Remarks	Officer	4 374 Value: $15.5K
Jul 08, 2025 Sell	Common Stock S-Sale	Auerbach Alan H President And CEO	CEO / President	25 592 Value: $90.4K
Jul 08, 2025 Sell	Common Stock S-Sale	Auerbach Alan H President And CEO	CEO / President	25 592 Value: $90.4K
Jul 08, 2025 Sell	Common Stock S-Sale	Hunt Douglas M See Remarks	Officer	4 374 Value: $15.5K
Jul 08, 2025 Sell	Common Stock S-Sale	Nougues Maximo F Chief Financial Officer	C-Suite Officer	5 587 Value: $19.7K
Jun 13, 2025 Sell	Common Stock S-Sale	Wilson Troy Edward Director	Director	10 800 Value: $36.7K
Jun 13, 2025 Sell	Common Stock S-Sale	Stuglik Brian M Director	Director	8 100 Value: $27.5K
Jun 13, 2025 Sell	Common Stock S-Sale	Senderowicz Adrian Director	Director	27 000 Value: $91.8K
Jun 13, 2025 Sell	Common Stock S-Sale	Moyes Jay M Director	Director	22 000 Value: $74.8K
Jun 13, 2025 Sell	Common Stock S-Sale	Dorval Allison Director	Director	11 610 Value: $39.5K
Jun 13, 2025 Sell	Common Stock S-Sale	Cesano Alessandra Director	Director	12 150 Value: $41.3K
Jun 13, 2025 Sell	Common Stock S-Sale	Cesano Alessandra Director	Director	12 150 Value: $41.3K
Jun 13, 2025 Sell	Common Stock S-Sale	Dorval Allison Director	Director	11 610 Value: $39.5K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT PUMA BIOTECHNOLOGY INC

Puma Biotechnology, Inc., a biopharmaceutical company, focuses on the development and commercialization of products to enhance cancer care in the United States and internationally. The company's drug candidates include PB272 neratinib (oral) for the patients with early stage HER2-overexpressed/amplified breast cancer; PB272 (neratinib, oral) for the use of neratinib in combination with capecitabine for the treatment of adult patients with advance...

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