SIMPLEX TRADING, LLC - TANDEM DIABETES CARE INC ownership

TANDEM DIABETES CARE INC's ticker is and the CUSIP is 875372903. A total of 3 filers reported holding TANDEM DIABETES CARE INC in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of TANDEM DIABETES CARE INC
ValueSharesWeighting
Q3 2023$243
-34.3%
11,700
-22.5%
0.00%
Q2 2023$370
-46.1%
15,100
-10.7%
0.00%
-100.0%
Q1 2023$686
+88.5%
16,900
+108.6%
0.00%
Q4 2022$364
-100.0%
8,100
-67.7%
0.00%
-100.0%
Q3 2022$1,201,000
-64.1%
25,100
-55.6%
0.00%
-75.0%
Q2 2022$3,344,000
+259.6%
56,500
+606.2%
0.00%
+300.0%
Q1 2022$930,000
-84.6%
8,000
-80.1%
0.00%
-83.3%
Q4 2021$6,050,000
-17.7%
40,200
-46.6%
0.01%
-14.3%
Q3 2021$7,347,000
+1.3%
75,300
+1.1%
0.01%0.0%
Q2 2021$7,256,000
+309.2%
74,500
+36964.7%
0.01%
+133.3%
Q1 2021$1,773,000
-65.4%
201
-62.5%
0.00%
-57.1%
Q4 2020$5,128,000
-15.9%
536
-0.2%
0.01%
-12.5%
Q3 2020$6,094,000
-1.6%
537
-14.2%
0.01%
-20.0%
Q2 2020$6,192,000
+438.0%
626
+249.7%
0.01%
+400.0%
Q1 2020$1,151,000
-47.2%
179
-51.1%
0.00%
-60.0%
Q4 2019$2,181,000
-48.6%
366
-49.1%
0.01%
-58.3%
Q3 2019$4,240,000
+88.4%
719
+106.0%
0.01%
+100.0%
Q2 2019$2,251,000
-36.1%
349
-37.1%
0.01%
-40.0%
Q1 2019$3,524,000
-0.5%
555
-40.5%
0.01%0.0%
Q4 2018$3,542,000
-18.8%
933
-8.3%
0.01%
-28.6%
Q3 2018$4,361,000
+60.6%
1,018
-17.4%
0.01%
+27.3%
Q2 2018$2,715,0001,233
+3636.4%
0.01%
Q4 2017$0330.00%
Other shareholders
TANDEM DIABETES CARE INC shareholders Q4 2020
NameSharesValueWeighting ↓
SIMPLEX TRADING, LLC 56,500$3,344,0000.00%
JANE STREET GROUP, LLC 80,700$4,777,0000.00%
GROUP ONE TRADING, L.P. 8,300$491,0000.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
View complete list of TANDEM DIABETES CARE INC shareholders