COVANCE INC

CUSIP: 222816100 Class: COM

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

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

Q4 2014
Shares 82,818 Value ($000) $8,600 Avg Close — Range —
Q2 2013
Shares 1,626 Value ($000) $124 Avg Close — Range —