VIROPHARMA INC

CUSIP: 928241108 Class: COMMON STOCK

ESSEX INVESTMENT MANAGEMENT CO LLC's Holding History (CIK: 0000201772)

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

Q3 2013
Shares 29,250 Value ($000) $1,148 Avg Close — Range —
Q2 2013
Shares 37,005 Value ($000) $1,060 Avg Close — Range —