VOCUS INC

CUSIP: 92858J108 Class: CMN

Portolan Capital Management, LLC's Holding History (CIK: 0001350290)

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

Q1 2014
Shares 411,480 Value ($000) $5,485 Avg Close — Range —
Q4 2013
Shares 425,937 Value ($000) $4,851 Avg Close — Range —
Q3 2013
Shares 323,840 Value ($000) $3,015 Avg Close — Range —
Q2 2013
Shares 55,239 Value ($000) $581 Avg Close — Range —