CHECKPOINT SYS INC

CUSIP: 162825103 Class: COM

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

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

Q3 2015
Shares 5,600 Value ($000) $41 Avg Close — Range —
Q2 2015
Shares 1,200 Value ($000) $12 Avg Close — Range —