GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

ASSETMARK, INC's Holding History (CIK: 0001344551)

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

Q4 2017

Shares 9 Value ($000) $0 Avg Close $15.45 Range $12.09 - $18.71

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	9	$0	$15.45	$12.09 - $18.71