GASTAR EXPL INC NEW

CUSIP: 36729W202 Class: COMMON STOCK

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

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

Q4 2017
Shares 3,154,721 Value ($000) $3,313 Avg Close — Range —
Q3 2017
Shares 3,272,260 Value ($000) $2,878 Avg Close — Range —