GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

TWO SIGMA ADVISERS, LP's Holding History (CIK: 0001478735)

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

Q2 2015

Shares 17,041 Value ($000) $393 Avg Close $20.88 Range $15.59 - $26.75

Q1 2015

Shares 49,141 Value ($000) $811 Avg Close $20.77 Range $14.95 - $28.88

Q4 2014

Shares 54,141 Value ($000) $1,435 Avg Close $29.00 Range $24.07 - $35.32

Q3 2014

Shares 54,841 Value ($000) $1,928 Avg Close $41.90 Range $34.01 - $55.50

Q2 2014

Shares 54,441 Value ($000) $2,999 Avg Close $56.24 Range $41.63 - $66.84

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2015	17,041	$393	$20.88	$15.59 - $26.75
Q1 2015	49,141	$811	$20.77	$14.95 - $28.88
Q4 2014	54,141	$1,435	$29.00	$24.07 - $35.32
Q3 2014	54,841	$1,928	$41.90	$34.01 - $55.50
Q2 2014	54,441	$2,999	$56.24	$41.63 - $66.84