GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

Artisan Partners Limited Partnership's Holding History (CIK: 0001466153)

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

Q4 2013

Shares 180,923 Value ($000) $17,157 Avg Close $91.95 Range $79.60 - $107.93

Q3 2013

Shares 159,168 Value ($000) $13,418 Avg Close $74.50 Range $66.87 - $84.82

Q2 2013

Shares 105,400 Value ($000) $7,281,032 Avg Close $83.42 Range $65.31 - $108.86

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2013	180,923	$17,157	$91.95	$79.60 - $107.93
Q3 2013	159,168	$13,418	$74.50	$66.87 - $84.82
Q2 2013	105,400	$7,281,032	$83.42	$65.31 - $108.86