GSE HLDG INC

CUSIP: 36191X100 Class: COM

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2013
Shares 14,313 Value ($000) $30 Avg Close — Range —
Q3 2013
Shares 14,313 Value ($000) $30 Avg Close — Range —
Q2 2013
Shares 13,914 Value ($000) $81 Avg Close — Range —
Q1 2013
Shares 13,975 Value ($000) $115 Avg Close — Range —