GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

Spark Investment Management LLC's Holding History (CIK: 0001554871)

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

Q1 2018

Shares 16,000 Value ($000) $157 Avg Close $12.26 Range $9.18 - $15.66

Q4 2017

Shares 24,000 Value ($000) $311 Avg Close $15.45 Range $12.09 - $18.71

Q3 2017

Shares 12,913 Value ($000) $230 Avg Close $15.21 Range $13.08 - $17.99

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	16,000	$157	$12.26	$9.18 - $15.66
Q4 2017	24,000	$311	$15.45	$12.09 - $18.71
Q3 2017	12,913	$230	$15.21	$13.08 - $17.99