GEOSPACE TECHNOLOGIES CORP

Ticker: GEOS CUSIP: 37364X109 Class: Common Stock

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q2 2019

Shares 694 Value ($000) $10 Avg Close $13.76 Range $11.85 - $15.89

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	694	$10	$13.76	$11.85 - $15.89