DEALERTRACK TECHNOLOGIES INC

CUSIP: 242309102 Class: COM

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

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

Q1 2015
Shares 7,900 Value ($000) $304 Avg Close — Range —
Q4 2014
Shares 39,220 Value ($000) $1,738 Avg Close — Range —
Q3 2014
Shares 40,220 Value ($000) $1,746 Avg Close — Range —
Q2 2014
Shares 39,820 Value ($000) $1,805 Avg Close — Range —
Q1 2014
Shares 36,600 Value ($000) $1,800 Avg Close — Range —
Q4 2013
Shares 38,600 Value ($000) $1,856 Avg Close — Range —
Q3 2013
Shares 36,600 Value ($000) $1,568 Avg Close — Range —
Q2 2013
Shares 49,200 Value ($000) $1,743 Avg Close — Range —