HESKA CORP

CUSIP: 42805E306 Class: Common Stock

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2022
Shares 17,056 Value ($000) $1,060 Avg Close — Range —
Q3 2022
Shares 31,387 Value ($000) $2,290 Avg Close — Range —
Q1 2022
Shares 2,928 Value ($000) $405 Avg Close — Range —
Q4 2021
Shares 1,915 Value ($000) $350 Avg Close — Range —
Q1 2021
Shares 30,791 Value ($000) $5,188 Avg Close — Range —
Q4 2018
Shares 27,441 Value ($000) $2,363 Avg Close — Range —