GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

DUPONT CAPITAL MANAGEMENT CORP's Holding History (CIK: 0001128251)

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

Q2 2018

Shares 27,739 Value ($000) $390 Avg Close $11.58 Range $9.46 - $14.81

Q4 2014

Shares 33,297 Value ($000) $882 Avg Close $29.00 Range $24.07 - $35.32

Q3 2014

Shares 21,227 Value ($000) $746 Avg Close $41.90 Range $34.01 - $55.50

Q2 2014

Shares 40,547 Value ($000) $2,233 Avg Close $56.24 Range $41.63 - $66.84

Q1 2014

Shares 19,497 Value ($000) $1,290 Avg Close $76.66 Range $60.70 - $94.82

Q4 2013

Shares 19,497 Value ($000) $1,849 Avg Close $91.95 Range $79.60 - $107.93

Q3 2013

Shares 22,516 Value ($000) $1,898 Avg Close $74.50 Range $66.87 - $84.82

Q2 2013

Shares 22,516 Value ($000) $1,555 Avg Close $83.42 Range $65.31 - $108.86

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	27,739	$390	$11.58	$9.46 - $14.81
Q4 2014	33,297	$882	$29.00	$24.07 - $35.32
Q3 2014	21,227	$746	$41.90	$34.01 - $55.50
Q2 2014	40,547	$2,233	$56.24	$41.63 - $66.84
Q1 2014	19,497	$1,290	$76.66	$60.70 - $94.82
Q4 2013	19,497	$1,849	$91.95	$79.60 - $107.93
Q3 2013	22,516	$1,898	$74.50	$66.87 - $84.82
Q2 2013	22,516	$1,555	$83.42	$65.31 - $108.86