GROUP ONE TRADING, L.P. - LANNET INC ownership

LANNET INC's ticker is and the CUSIP is 516012901. A total of 3 filers reported holding LANNET INC in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of LANNET INC
ValueSharesWeighting
Q4 2022$7,760
+29.3%
14,900
+93.5%
0.00%
Q1 2022$6,000
-85.0%
7,700
-68.6%
0.00%
Q4 2021$40,000
-59.6%
24,500
-26.0%
0.00%
Q3 2021$99,000
-50.7%
33,100
-23.2%
0.00%
Q2 2021$201,000
+773.9%
43,100
+902.3%
0.00%
Q1 2021$23,000
-96.7%
4,300
-96.0%
0.00%
-100.0%
Q4 2020$704,000
+99.4%
108,000
+86.9%
0.00%0.0%
Q3 2020$353,000
-21.7%
57,800
-6.9%
0.00%
-50.0%
Q2 2020$451,000
-42.5%
62,100
-45.0%
0.00%
-66.7%
Q1 2020$785,000
-68.0%
112,900
-59.4%
0.01%
-64.7%
Q4 2019$2,450,000
-56.6%
277,800
-44.9%
0.02%
-63.0%
Q3 2019$5,647,000
+8.1%
504,200
-41.5%
0.05%
-2.1%
Q2 2019$5,222,000
+8903.4%
861,700
+11544.6%
0.05%
+4600.0%
Q1 2019$58,000
+241.2%
7,400
+117.6%
0.00%
Q4 2018$17,000
-96.9%
3,400
-97.0%
0.00%
-100.0%
Q3 2018$544,000
-64.1%
114,600
+2.8%
0.00%
-69.2%
Q2 2018$1,516,000
+20.1%
111,500
+41.9%
0.01%0.0%
Q1 2018$1,262,000
-72.5%
78,600
-60.2%
0.01%
-59.4%
Q4 2017$4,582,000
+57.5%
197,500
+25.2%
0.03%
+23.1%
Q3 2017$2,910,000
+86.9%
157,700
+106.7%
0.03%
+62.5%
Q2 2017$1,557,000
-11.5%
76,300
-3.0%
0.02%
-20.0%
Q1 2017$1,759,000
+13.8%
78,700
+12.3%
0.02%
+33.3%
Q4 2016$1,546,000
-4.6%
70,100
+14.9%
0.02%
-16.7%
Q3 2016$1,621,000
+194.7%
61,000
+164.1%
0.02%
+157.1%
Q2 2016$550,000
+16.5%
23,100
-12.2%
0.01%0.0%
Q1 2016$472,000
-64.1%
26,300
-19.8%
0.01%
-56.2%
Q4 2015$1,316,000
-54.7%
32,800
-53.1%
0.02%
-60.0%
Q3 2015$2,902,000
-21.6%
69,900
+12.2%
0.04%
-23.1%
Q2 2015$3,703,000
+8.3%
62,300
+23.4%
0.05%
-3.7%
Q1 2015$3,419,000
+220.1%
50,500
+102.8%
0.05%
+237.5%
Q4 2014$1,068,000
-46.1%
24,900
-42.6%
0.02%
-48.4%
Q3 2014$1,983,000
-18.9%
43,400
-12.0%
0.03%
-18.4%
Q2 2014$2,446,000
+1391.5%
49,300
+971.7%
0.04%
+1166.7%
Q1 2014$164,0004,6000.00%
Other shareholders
LANNET INC shareholders Q4 2020
NameSharesValueWeighting ↓
GROUP ONE TRADING, L.P. 108,000$704,0000.00%
SIMPLEX TRADING, LLC 399$260,0000.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of LANNET INC shareholders