DOT HILL SYS CORP

CUSIP: 25848T109 Class: CMN

OBERWEIS ASSET MANAGEMENT INC/'s Holding History (CIK: 0000937886)

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

Q2 2015
Shares 68,000 Value ($000) $416 Avg Close — Range —
Q1 2015
Shares 68,000 Value ($000) $360 Avg Close — Range —
Q1 2014
Shares 234,000 Value ($000) $906 Avg Close — Range —