DATALINK CORP

CUSIP: 237934104 Class: COMMON STOCK

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

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

Q3 2013
Shares 11,695 Value ($000) $158 Avg Close — Range —
Q2 2013
Shares 36,955 Value ($000) $393 Avg Close — Range —