GT ADVANCED TECHNOLOGIES INC

CUSIP: 36191U106 Class: COM

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q3 2014
Shares 11,981,114 Value ($000) $129,755 Avg Close — Range —
Q2 2014
Shares 10,866,294 Value ($000) $202,113 Avg Close — Range —
Q1 2014
Shares 9,840,635 Value ($000) $167,782 Avg Close — Range —
Q4 2013
Shares 12,454,570 Value ($000) $108,604 Avg Close — Range —
Q3 2013
Shares 14,325,059 Value ($000) $121,906 Avg Close — Range —
Q2 2013
Shares 6,701,460 Value ($000) $27,811 Avg Close — Range —