VOCUS INC

CUSIP: 92858J108 Class: CMN

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

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

Q1 2014
Shares 5,859 Value ($000) $78 Avg Close — Range —
Q4 2013
Shares 11,058 Value ($000) $126 Avg Close — Range —
Q3 2013
Shares 19,768 Value ($000) $184 Avg Close — Range —
Q2 2013
Shares 26,462 Value ($000) $278 Avg Close — Range —