SIGMA CAPITAL MANAGEMENT LLC - PUMA BIOTECHNOLOGY INC ownership

PUMA BIOTECHNOLOGY INC's ticker is PBYI and the CUSIP is 74587V107. A total of 115 filers reported holding PUMA BIOTECHNOLOGY INC in Q4 2013. The put-call ratio across all filers is 0.86 and the average weighting 0.2%.

Quarter-by-quarter ownership
SIGMA CAPITAL MANAGEMENT LLC ownership history of PUMA BIOTECHNOLOGY INC
ValueSharesWeighting
Q1 2014$1,562,000
-24.6%
15,000
-25.0%
0.08%
-31.0%
Q4 2013$2,071,000
-63.2%
20,000
-81.0%
0.12%
-50.6%
Q3 2013$5,634,000105,0000.24%
Other shareholders
PUMA BIOTECHNOLOGY INC shareholders Q4 2013
NameSharesValueWeighting ↓
Sarissa Capital Management LP 1,417,000$18,010,0002.24%
Palo Alto Investors LP 1,405,680$17,866,0000.87%
PFM Health Sciences, LP 2,838,376$36,076,0000.68%
TANG CAPITAL MANAGEMENT LLC 349,400$4,441,0000.60%
Capital Impact Advisors, LLC 127,029$1,615,0000.59%
Leap Investments LP 29,100$370,0000.50%
Spark Investment Management LLC 454,300$5,774,0000.40%
Partner Investment Management, L.P. 27,567$350,0000.37%
BOGLE INVESTMENT MANAGEMENT L P /DE/ 262,945$3,342,0000.26%
Rock Springs Capital Management LP 534,400$6,792,0000.25%
View complete list of PUMA BIOTECHNOLOGY INC shareholders