APTOSE BIOSCIENCES INC

CUSIP: 03835T200 Class: Stock

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

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

Q1 2023
Shares 3,836 Value ($000) $2 Avg Close — Range —
Q4 2022
Shares 35,573 Value ($000) $21 Avg Close — Range —
Q3 2022
Shares 63,550 Value ($000) $38 Avg Close — Range —
Q2 2022
Shares 78,027 Value ($000) $58 Avg Close — Range —
Q1 2022
Shares 110,351 Value ($000) $150 Avg Close — Range —
Q4 2021
Shares 148,956 Value ($000) $201 Avg Close — Range —
Q3 2021
Shares 96,790 Value ($000) $211 Avg Close — Range —
Q2 2021
Shares 152,861 Value ($000) $508 Avg Close — Range —
Q3 2020
Shares 18,000 Value ($000) $108 Avg Close — Range —
Q1 2020
Shares 2,325 Value ($000) $14 Avg Close — Range —
Q3 2019
Shares 500 Value ($000) $1 Avg Close — Range —