GEOSPACE TECHNOLOGIES CORP

CUSIP: 37364X10 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q2 2016
Shares 12,200 Value ($000) $200 Avg Close — Range —
Q2 2013
Shares 16,326 Value ($000) $1,128 Avg Close — Range —