GT ADVANCED TECHNOLOGIES INC

CUSIP: 36191U106 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q3 2014
Shares 347,959 Value ($000) $3,768 Avg Close — Range —
Q2 2014
Shares 1,559,417 Value ($000) $29,004 Avg Close — Range —
Q1 2014
Shares 1,584,440 Value ($000) $27,014 Avg Close — Range —
Q4 2013
Shares 1,598,203 Value ($000) $13,937 Avg Close — Range —
Q3 2013
Shares 1,605,602 Value ($000) $13,663 Avg Close — Range —
Q2 2013
Shares 1,593,811 Value ($000) $6,614 Avg Close — Range —