GT ADVANCED TECHNOLOGIES INC

CUSIP: 36191UAA4 Class: NOTE 3.000%10/0

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

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

Q3 2014
Shares 205,000 Value ($000) $315 Avg Close — Range —
Q2 2014
Shares 205,000 Value ($000) $510 Avg Close — Range —
Q1 2014
Shares 205,000 Value ($000) $471 Avg Close — Range —
Q4 2013
Shares 205,000 Value ($000) $281 Avg Close — Range —
Q3 2013
Shares 390,000 Value ($000) $508 Avg Close — Range —