Activity Companies Alerts About

Alan H. Auerbach owns 14.07% of Puma Biotechnology

7,261,671 shares as of the July 6, 2026 filing, worth $71.4M at the latest close.

PBYI · $507M market cap · Founder-led
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Free.
The stake
14.07%
worth $71.4M at the latest close
Stake rank
#547
by dollar value of the stake
Last sale
105 days ago
Jul 6, 2026
Last buy
None
no purchases since 2017

Alan H. Auerbach owns 14.07% of PUMA BIOTECHNOLOGY, INC.: 7,261,671 of 51,620,066 shares, worth about $71.4M at the 2026-10-16 close. The stake has moved from 12.43% in 2016 to 14.07% on 2026-08-03, across 63 sales and 0 purchases that moved it since 2016. The last trade that moved it was a planned sale of $364,051 on 2026-07-06.

How the stake is held

as of the Jul 6, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Jul 6, 2026 · Form 4 ↗
HELD DIRECTLY
7,261,671
100.0%
THE STAKE
7,261,671
14.07%