DATALINK CORP

CUSIP: 237934104 Class: COMMON STOCK

HighTower Advisors, LLC's Holding History (CIK: 0001462245)

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

Q1 2016
Shares 11,199 Value ($000) $102 Avg Close — Range —
Q4 2015
Shares 11,508 Value ($000) $81 Avg Close — Range —