HESKA CORP

CUSIP: 42805E306 Class: Common Stock

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

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

Q2 2022
Shares 200 Value ($000) $19 Avg Close — Range —
Q1 2022
Shares 200 Value ($000) $28 Avg Close — Range —
Q4 2021
Shares 840 Value ($000) $153 Avg Close — Range —
Q3 2021
Shares 940 Value ($000) $243 Avg Close — Range —