HESKA CORP

CUSIP: 42805E306 Class: Common Stock

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

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

Q3 2014
Shares 63,901 Value ($000) $843 Avg Close — Range —
Q2 2014
Shares 68,018 Value ($000) $731 Avg Close — Range —
Q1 2014
Shares 81,708 Value ($000) $861 Avg Close — Range —
Q4 2013
Shares 73,370 Value ($000) $640 Avg Close — Range —
Q3 2013
Shares 34,608 Value ($000) $201 Avg Close — Range —
Q2 2013
Shares 37,666 Value ($000) $260 Avg Close — Range —