GT ADVANCED TECHNOLOGIES INC

CUSIP: 36191U106 Class: COM

OPPENHEIMER & CO INC's Holding History (CIK: 0000822581)

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

Q3 2014
Shares 95,568 Value ($000) $1,035 Avg Close — Range —
Q1 2014
Shares 169,713 Value ($000) $2,894 Avg Close — Range —
Q4 2013
Shares 109,400 Value ($000) $953 Avg Close — Range —