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

PENUMBRA INC's ticker is and the CUSIP is 70975L957. A total of 6 filers reported holding PENUMBRA INC in Q2 2022. The put-call ratio across all filers is - and the average weighting 0.2%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of PENUMBRA INC
ValueSharesWeighting
Q3 2023$2,540,055
+2360.9%
10,500
+3400.0%
0.01%
Q2 2023$103,218
-97.5%
300
-98.0%
0.00%
-100.0%
Q1 2023$4,180,350
-9.7%
15,000
-27.9%
0.02%
+36.4%
Q4 2022$4,627,168
+234.3%
20,800
+184.9%
0.01%
+266.7%
Q3 2022$1,384,000
+2.9%
7,300
-32.4%
0.00%
+50.0%
Q2 2022$1,345,000
-61.7%
10,800
-31.6%
0.00%
-33.3%
Q1 2022$3,510,000
+174.4%
15,800
+229.2%
0.00%
+200.0%
Q3 2021$1,279,000
+6.1%
4,800
+9.1%
0.00%0.0%
Q2 2021$1,206,000
-82.2%
4,400
-82.5%
0.00%
-90.0%
Q1 2021$6,792,000
-65.6%
25,100
-77.7%
0.01%
-70.6%
Q4 2020$19,740,000
+11180.0%
112,800
+12433.3%
0.03%
+3300.0%
Q3 2020$175,000
+22.4%
900
+12.5%
0.00%0.0%
Q2 2020$143,000
-11.2%
800
-20.0%
0.00%0.0%
Q1 2020$161,000
+257.8%
1,000
+233.3%
0.00%
Q3 2018$45,000
-95.1%
300
-97.5%
0.00%
-100.0%
Q3 2016$912,000
+27.7%
12,0000.0%0.01%
+25.0%
Q2 2016$714,00012,0000.01%
Other shareholders
PENUMBRA INC shareholders Q2 2022
NameSharesValueWeighting ↓
PURA VIDA INVESTMENTS, LLC 125,000$15,565,0000.90%
Twin Tree Management, LP 103,300$12,863,0000.02%
GROUP ONE TRADING, L.P. 10,800$1,345,0000.00%
SIMPLEX TRADING, LLC 4,200$522,0000.00%
JANE STREET GROUP, LLC 20,600$2,565,0000.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of PENUMBRA INC shareholders