DATALINK CORP

CUSIP: 237934104 Class: COMMON STOCK

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q1 2015
Shares 4,065 Value ($000) $49 Avg Close — Range —
Q4 2014
Shares 4,928 Value ($000) $64 Avg Close — Range —
Q2 2013
Shares 159 Value ($000) $2 Avg Close — Range —