DOT HILL SYS CORP

CUSIP: 25848T109 Class: CMN

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

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

Q3 2015
Shares 7,088 Value ($000) $68 Avg Close — Range —
Q2 2015
Shares 3,004 Value ($000) $18 Avg Close — Range —
Q1 2015
Shares 2,167 Value ($000) $11 Avg Close — Range —