GSE SYS INC

CUSIP: 36227K106 Class: COM

Invesco Ltd.'s Holding History (CIK: 0000914208)

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

Q4 2013
Shares 305,731 Value ($000) $489 Avg Close — Range —
Q3 2013
Shares 305,731 Value ($000) $480 Avg Close — Range —
Q2 2013
Shares 305,731 Value ($000) $462 Avg Close — Range —