GT ADVANCED TECHNOLOGIES INC

CUSIP: 36191U106 Class: COM

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q3 2014
Shares 1,935 Value ($000) $21 Avg Close — Range —
Q2 2014
Shares 840 Value ($000) $16 Avg Close — Range —
Q1 2014
Shares 4,568 Value ($000) $78 Avg Close — Range —
Q4 2013
Shares 1,012 Value ($000) $9 Avg Close — Range —
Q3 2013
Shares 20,323 Value ($000) $173 Avg Close — Range —
Q2 2013
Shares 6,814 Value ($000) $28 Avg Close — Range —