TANDEM DIABETES CARE INC

Ticker: TNDM CUSIP: 875372203 Class: EQTY

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 60,736 Value ($000) $1,335 Avg Close $18.05 Range $12.07 - $24.50
Q3 2025
Shares 84,771 Value ($000) $1,029 Avg Close $13.54 Range $9.98 - $18.13
Q2 2025
Shares 55,940 Value ($000) $1,043 Avg Close $19.81 Range $15.75 - $24.00
Q1 2025
Shares 51,460 Value ($000) $986 Avg Close $29.26 Range $17.64 - $38.28
Q4 2024
Shares 1,589 Value ($000) $57 Avg Close $33.83 Range $27.15 - $42.70
Q3 2024
Shares 4,323 Value ($000) $183 Avg Close $42.40 Range $34.60 - $48.24
Q2 2024
Shares 1,665 Value ($000) $67 Avg Close $41.72 Range $30.12 - $53.69
Q4 2023
Shares 3,631 Value ($000) $107 Avg Close $20.75 Range $13.82 - $31.45
Q2 2023
Shares 719 Value ($000) $18 Avg Close $32.17 Range $23.60 - $43.52
Q2 2022
Shares 11,106 Value ($000) $657 Avg Close $82.09 Range $52.69 - $123.96
Q1 2022
Shares 11,445 Value ($000) $1,331 Avg Close $116.75 Range $100.00 - $150.64
Q3 2020
Shares 3,700 Value ($000) $420 Avg Close $105.07 Range $91.93 - $116.89
Q1 2020
Shares 19,987 Value ($000) $1,286 Avg Close $70.07 Range $43.69 - $91.65
Q1 2019
Shares 9,106 Value ($000) $578 Avg Close $52.53 Range $32.00 - $74.81
Q4 2018
Shares 45,353 Value ($000) $1,722 Avg Close $35.31 Range $26.40 - $44.10
Q3 2018
Shares 12,885 Value ($000) $552 Avg Close $34.92 Range $20.08 - $52.55
Q2 2018
Shares 1,856 Value ($000) $41 Avg Close $12.30 Range $4.75 - $25.50
Q4 2017
Shares 3,046 Value ($000) $7 Avg Close $3.14 Range $2.15 - $8.88