Geospace Technologies Corp (GEOS)

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Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Disciplined Growth Investors Inc	1,268,330	$9,144,659	0.19%
2.	Blackrock, Inc.	882,005	$6,359,255	0%
3.	Moors & Cabot, Inc.	785,900	$5,666,339	0.29%
4.	Vanguard Group Inc	736,111	$5,307,360	0%
5.	Dimensional Fund Advisors Lp	667,196	$4,810,460	0%