DOT HILL SYS CORP

CUSIP: 25848T109 Class: CMN

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

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

Q2 2015
Shares 167,305 Value ($000) $1,024 Avg Close — Range —
Q1 2015
Shares 169,628 Value ($000) $899 Avg Close — Range —
Q1 2014
Shares 190,551 Value ($000) $737 Avg Close — Range —
Q4 2013
Shares 171,110 Value ($000) $577 Avg Close — Range —
Q3 2013
Shares 161,652 Value ($000) $346 Avg Close — Range —