VIROPHARMA INC

CUSIP: 928241108 Class: COMMON STOCK

RATIONAL ADVISORS LLC's Holding History (CIK: 0001143565)

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

Q1 2010
Shares 4,000 Value ($000) $55 Avg Close — Range —
Q4 2009
Shares 4,000 Value ($000) $34 Avg Close — Range —
Q3 2009
Shares 4,000 Value ($000) $38 Avg Close — Range —
Q2 2009
Shares 4,000 Value ($000) $24 Avg Close — Range —
Q1 2009
Shares 4,000 Value ($000) $21 Avg Close — Range —