GROUP ONE TRADING, L.P. - LA JOLLA PHARMACEUTICAL CO ownership

LA JOLLA PHARMACEUTICAL CO's ticker is LJPC and the CUSIP is 503459604. A total of 56 filers reported holding LA JOLLA PHARMACEUTICAL CO in Q3 2021. The put-call ratio across all filers is 0.62 and the average weighting 1.9%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of LA JOLLA PHARMACEUTICAL CO
ValueSharesWeighting
Q2 2022$1,000
-66.7%
333
-43.9%
0.00%
Q1 2022$3,000
-92.1%
594
-92.7%
0.00%
Q4 2021$38,000
+3700.0%
8,127
+2771.7%
0.00%
Q2 2021$1,000
-96.4%
283
-95.7%
0.00%
Q1 2021$28,000
+2700.0%
6,632
+2032.5%
0.00%
Q4 2020$1,000
-94.4%
311
-92.5%
0.00%
Q1 2020$18,000
+800.0%
4,170
+631.6%
0.00%
Q4 2019$2,000
-94.1%
570
-84.3%
0.00%
Q2 2019$34,000
+750.0%
3,625
+2400.0%
0.00%
Q2 2018$4,000
-96.7%
145
-96.2%
0.00%
-100.0%
Q4 2017$123,000
-16.3%
3,814
-10.0%
0.00%0.0%
Q3 2017$147,000
-43.7%
4,240
-51.7%
0.00%
-66.7%
Q2 2017$261,000
+507.0%
8,780
+381.9%
0.00%
Q3 2016$43,000
-76.4%
1,822
-84.0%
0.00%
-100.0%
Q2 2016$182,00011,380
+227500.0%
0.00%
Q1 2016$0
-100.0%
5
-99.4%
0.00%
Q4 2015$22,000
-94.0%
805
-93.9%
0.00%
-100.0%
Q3 2015$366,000
+2.5%
13,188
-9.5%
0.01%0.0%
Q2 2015$357,00014,5770.01%
Other shareholders
LA JOLLA PHARMACEUTICAL CO shareholders Q3 2021
NameSharesValueWeighting ↓
TANG KEVIN C 240,000$1,027,00095.09%
TANG CAPITAL MANAGEMENT LLC 10,049,224$43,011,0008.56%
RTW INVESTMENTS, LP 2,327,903$9,963,0000.15%
Boxer Capital, LLC 890,700$3,812,0000.13%
Tibra Equities Europe Ltd 72,600$311,0000.10%
WealthTrust Axiom LLC 25,400$108,0000.04%
GSA CAPITAL PARTNERS LLP 52,749$226,0000.02%
FIRST MIDWEST BANK TRUST DIVISION 34,231$147,0000.02%
HOLLENCREST CAPITAL MANAGEMENT 42,355$181,0000.02%
Summit Global Investments 48,500$208,0000.01%
View complete list of LA JOLLA PHARMACEUTICAL CO shareholders