GROUP ONE TRADING, L.P. - SIERRA ONCOLOGY INC ownership

SIERRA ONCOLOGY INC's ticker is SRRA and the CUSIP is 82640U107. A total of 4 filers reported holding SIERRA ONCOLOGY INC in Q1 2020. The put-call ratio across all filers is - and the average weighting 2.2%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of SIERRA ONCOLOGY INC
ValueSharesWeighting
Q4 2019$3,000
-90.0%
8,500
-15.0%
0.00%
Q2 2018$30,000
+42.9%
10,0000.0%0.00%
Q1 2018$21,00010,0000.00%
Other shareholders
SIERRA ONCOLOGY INC shareholders Q1 2020
NameSharesValueWeighting ↓
FRAZIER MANAGEMENT LLC 8,112,121$12,412,0006.63%
New Leaf Venture Partners, L.L.C. 2,592,593$3,967,0002.03%
Vivo Capital, LLC 2,438,270$3,731,0001.10%
DAFNA Capital Management LLC 265,000$405,0000.34%
Perceptive Advisors 3,703,704$5,667,0000.32%
NEXTHERA CAPITAL LP 400,000$612,0000.31%
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) 4,972,319$7,608,0000.29%
SABBY MANAGEMENT, LLC 1,746,261$2,672,0000.14%
VHCP Management II, LLC 130,798$200,0000.08%
Orbimed Advisors 3,703,704$5,667,0000.06%
View complete list of SIERRA ONCOLOGY INC shareholders