UNITED STATIONERS INC

CUSIP: 913004107 Class: COM

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q1 2015
Shares 2,264 Value ($000) $92 Avg Close — Range —
Q4 2014
Shares 84 Value ($000) $4 Avg Close — Range —
Q3 2014
Shares 2,614 Value ($000) $98 Avg Close — Range —
Q1 2014
Shares 813 Value ($000) $33 Avg Close — Range —
Q4 2013
Shares 934 Value ($000) $43 Avg Close — Range —
Q3 2013
Shares 3,214 Value ($000) $140 Avg Close — Range —
Q2 2013
Shares 205 Value ($000) $7 Avg Close — Range —