PUMA BIOTECHNOLOGY INC

Ticker: PBYI CUSIP: 74587V107 Class: Common Stock

Sarissa Capital Management LP's Holding History (CIK: 0001577524)

Note: Option positions (PUT/CALL) are excluded.

Q3 2019

Shares 1,417,000 Value ($000) $15,254 Avg Close $10.80 Range $8.45 - $13.35

Q2 2019

Shares 1,417,000 Value ($000) $18,010 Avg Close $23.03 Range $12.22 - $36.75

Q1 2019

Shares 1,417,000 Value ($000) $54,965 Avg Close $30.54 Range $19.86 - $43.90

Q4 2018

Shares 1,343,000 Value ($000) $27,330 Avg Close $30.01 Range $17.60 - $47.14

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	1,417,000	$15,254	$10.80	$8.45 - $13.35
Q2 2019	1,417,000	$18,010	$23.03	$12.22 - $36.75
Q1 2019	1,417,000	$54,965	$30.54	$19.86 - $43.90
Q4 2018	1,343,000	$27,330	$30.01	$17.60 - $47.14