VOCUS INC

CUSIP: 92858J10 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q3 2013
Shares 41,163 Value ($000) $383 Avg Close — Range —
Q2 2013
Shares 61,092 Value ($000) $643 Avg Close — Range —