GT ADVANCED TECHNOLOGIES INC

CUSIP: 36191U106 Class: COM

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

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

Q2 2014
Shares 64,111 Value ($000) $1,192 Avg Close — Range —
Q1 2014
Shares 39,262 Value ($000) $669 Avg Close — Range —
Q2 2013
Shares 2,539 Value ($000) $11 Avg Close — Range —