Form SCHEDULE 13G/A GEOSPACE TECHNOLOGIES Filed by: DISCIPLINED GROWTH INVESTORS INC /MN

Go back to Form SCHEDULE 13G/A GEOSPACE TECHNOLOGIES Filed by: DISCIPLINED GROWTH INVESTORS INC /MN
GEOSPACE TECHN (NASDAQ: GEOS) Delayed: 6.93 -0.06 (0.86%)
Previous Close $6.99    52 Week High $22.36 
Open $6.82    52 Week Low $7.62 
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