PBYI shares out (basic) history

Quarterly. Dates are reporting period ends; fiscal years can differ from calendar years.

Puma Biotechnology Inc Shares Out (Basic) — Quarterly
Period ending	Shares Out (Basic)
Jun 30, 2026	50,939,946
Mar 31, 2026	50,845,130
Dec 31, 2025	50,339,456
Sep 30, 2025	50,339,456
Jun 30, 2025	49,700,217
Mar 31, 2025	49,595,697
Dec 31, 2024	49,095,583
Sep 30, 2024	49,008,464
Jun 30, 2024	48,292,414
Mar 31, 2024	48,189,256
Dec 31, 2023	47,600,505
Sep 30, 2023	47,520,338
Jun 30, 2023	46,759,062
Mar 31, 2023	46,636,083
Dec 31, 2022	45,814,185
Sep 30, 2022	45,567,739
Jun 30, 2022	45,058,924
Mar 31, 2022	42,207,709
Dec 31, 2021	40,991,412
Sep 30, 2021	40,813,609
Jun 30, 2021	39,277,225
Mar 31, 2021	40,260,864
Dec 31, 2020	39,455,714
Sep 30, 2020	39,695,444
Jun 30, 2020	39,432,030
Mar 31, 2020	39,291,162
Dec 31, 2019	39,043,706
Sep 30, 2019	38,893,757
Jun 30, 2019	38,581,443
Mar 31, 2019	38,481,824
Dec 31, 2018	38,201,056
Sep 30, 2018	38,043,174
Jun 30, 2018	37,819,767
Mar 31, 2018	37,699,024
Dec 31, 2017	37,511,364
Sep 30, 2017	37,214,002
Jun 30, 2017	36,992,017
Mar 31, 2017	36,931,167
Dec 31, 2016	35,694,193
Sep 30, 2016	32,497,168
Jun 30, 2016	32,493,092
Mar 31, 2016	32,478,408
Dec 31, 2015	32,444,270
Sep 30, 2015	32,303,203
Jun 30, 2015	32,158,108
Mar 31, 2015	31,588,315
Dec 31, 2014	30,232,718
Sep 30, 2014	30,117,819
Jun 30, 2014	30,117,819
Mar 31, 2014	29,567,071
Dec 31, 2013	28,750,975
Sep 30, 2013	28,682,055
Jun 30, 2013	28,676,666
Mar 31, 2013	28,676,666
Dec 31, 2012	26,511,141
Sep 30, 2012	20,040,000
Jun 30, 2012	20,040,000
Mar 31, 2012	20,040,000
Dec 31, 2011	20,040,000
Sep 30, 2011	4,000,000
Jun 30, 2011	4,000,000
Mar 31, 2011	4,000,000
Dec 31, 2010	3,000,000
Sep 30, 2010	3,000,000
Jun 30, 2010	3,000,000
Mar 31, 2010	3,000,000
Dec 31, 2009	3,000,000
Sep 30, 2009	3,000,000
Jun 30, 2009	3,000,000
Mar 31, 2009	3,000,000
Dec 31, 2008	3,000,000
Sep 30, 2008	3,000,000
Jun 30, 2008	3,000,000
Mar 31, 2008	3,000,000
Dec 31, 2007	3,000,000