DOT HILL SYS CORP

CUSIP: 25848T109 Class: CMN

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q3 2015
Shares 271 Value ($000) $3 Avg Close — Range —
Q2 2015
Shares 7,053 Value ($000) $43 Avg Close — Range —
Q4 2014
Shares 100 Value ($000) $0 Avg Close — Range —
Q3 2014
Shares 900 Value ($000) $3 Avg Close — Range —
Q2 2014
Shares 28,546 Value ($000) $134 Avg Close — Range —
Q1 2014
Shares 1,335 Value ($000) $5 Avg Close — Range —
Q4 2013
Shares 434 Value ($000) $1 Avg Close — Range —
Q2 2013
Shares 3,671 Value ($000) $8 Avg Close — Range —