GROUP ONE TRADING, L.P. - PORTOLA PHARMACEUTICALS INC ownership

PORTOLA PHARMACEUTICALS INC's ticker is PTLA and the CUSIP is 737010108. A total of 161 filers reported holding PORTOLA PHARMACEUTICALS INC in Q1 2015. The put-call ratio across all filers is 0.67 and the average weighting 0.3%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of PORTOLA PHARMACEUTICALS INC
ValueSharesWeighting
Q2 2020$1,015,000
+57.1%
56,437
-37.7%
0.01%0.0%
Q1 2020$646,000
+12.7%
90,595
+277.8%
0.01%
+25.0%
Q4 2019$573,000
+81.9%
23,982
+163.8%
0.00%0.0%
Q1 2019$315,000
-64.8%
9,092
-80.2%
0.00%
-50.0%
Q4 2018$895,000
-18.9%
45,866
+10.7%
0.01%
-11.1%
Q3 2018$1,103,000
+47.1%
41,415
+108.6%
0.01%
+50.0%
Q2 2018$750,000
-79.1%
19,850
-81.9%
0.01%
-83.3%
Q1 2018$3,588,000
-36.1%
109,859
-4.7%
0.04%
-7.7%
Q4 2017$5,612,000
-0.9%
115,293
+10.0%
0.04%
-23.5%
Q3 2017$5,664,000
+57.1%
104,828
+63.4%
0.05%
+37.8%
Q2 2017$3,605,000
+91.7%
64,173
+33.7%
0.04%
+68.2%
Q1 2017$1,881,000
+232.9%
47,988
+90.7%
0.02%
+340.0%
Q4 2016$565,000
+35.2%
25,166
+36.8%
0.01%0.0%
Q3 2016$418,000
+200.7%
18,396
+212.8%
0.01%
+150.0%
Q2 2016$139,000
+11.2%
5,882
-4.0%
0.00%0.0%
Q1 2016$125,000
-42.1%
6,130
+45.9%
0.00%
-33.3%
Q4 2015$216,000
+188.0%
4,202
+138.3%
0.00%
+200.0%
Q3 2015$75,000
+47.1%
1,763
+31.7%
0.00%0.0%
Q1 2015$51,000
-83.9%
1,339
-88.0%
0.00%
-80.0%
Q4 2014$317,000
+240.9%
11,191
+203.2%
0.01%
+400.0%
Q3 2014$93,000
-27.3%
3,691
-15.9%
0.00%
-50.0%
Q2 2014$128,0004,3870.00%
Other shareholders
PORTOLA PHARMACEUTICALS INC shareholders Q1 2015
NameSharesValueWeighting ↓
Fernwood Investment Management, LLC 232,952$5,498,0005.39%
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) 3,673,727$86,700,0003.41%
Redmile Group, LLC 1,466,537$34,610,0003.31%
SECTORAL ASSET MANAGEMENT INC 1,229,382$29,013,0003.00%
HARVEY CAPITAL MANAGEMENT INC 206,530$4,874,0002.44%
Marcus Capital, LLC 75,150$1,774,0001.87%
Cormorant Asset Management, LP 396,000$9,346,0001.32%
Rail-Splitter Capital Management, LLC 221,414$5,225,0001.25%
Temasek Holdings (Private) Ltd 6,583,568$155,372,0001.21%
EMERALD MUTUAL FUND ADVISERS TRUST 636,526$15,022,0000.84%
View complete list of PORTOLA PHARMACEUTICALS INC shareholders