DENDREON CORP

CUSIP: 24823Q107 Class: COM

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q4 2013
Shares 9,773 Value ($000) $29 Avg Close — Range —
Q3 2013
Shares 8,873 Value ($000) $26 Avg Close — Range —
Q2 2013
Shares 4,051 Value ($000) $17 Avg Close — Range —