APTOSE BIOSCIENCES INC

CUSIP: 03835T200 Class: Stock

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q4 2020
Shares 14,654 Value ($000) $64 Avg Close — Range —
Q2 2018
Shares 1,375 Value ($000) $5 Avg Close — Range —
Q1 2018
Shares 1,375 Value ($000) $4 Avg Close — Range —
Q4 2017
Shares 1,375 Value ($000) $3 Avg Close — Range —
Q3 2017
Shares 1,375 Value ($000) $2 Avg Close — Range —
Q2 2017
Shares 3,250 Value ($000) $4 Avg Close — Range —
Q1 2017
Shares 6,250 Value ($000) $6 Avg Close — Range —