UNITED STATIONERS INC

CUSIP: 913004107 Class: COM

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q1 2015
Shares 514,524 Value ($000) $21,090 Avg Close — Range —
Q4 2014
Shares 426,974 Value ($000) $18,001 Avg Close — Range —
Q3 2014
Shares 440,464 Value ($000) $16,548 Avg Close — Range —
Q2 2014
Shares 410,294 Value ($000) $17,015 Avg Close — Range —
Q1 2014
Shares 312,201 Value ($000) $12,822 Avg Close — Range —
Q4 2013
Shares 99,377 Value ($000) $4,560 Avg Close — Range —
Q3 2013
Shares 101,705 Value ($000) $4,424 Avg Close — Range —
Q2 2013
Shares 92,080 Value ($000) $3,089 Avg Close — Range —