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Oct 30, 2025 03:20PM Form SCHEDULE 13G/A GEOSPACE TECHNOLOGIES Filed by: VANGUARD GROUP INC
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Jan 23, 2025 03:56PM Form SCHEDULE 13G GEOSPACE TECHNOLOGIES Filed by: DIMENSIONAL FUND ADVISORS LP
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Feb 1, 2024 03:55PM Form SC 13G/A GEOSPACE TECHNOLOGIES Filed by: Tieton Capital Management, LLC
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May 10, 2022 10:13AM Form SC 13G/A GEOSPACE TECHNOLOGIES Filed by: FMR LLC
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Feb 12, 2021 03:22PM Form SC 13G/A GEOSPACE TECHNOLOGIES Filed by: DIMENSIONAL FUND ADVISORS LP
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Feb 12, 2020 11:17AM Form SC 13G/A GEOSPACE TECHNOLOGIES Filed by: VANGUARD GROUP INC
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Feb 8, 2019 08:59AM Form SC 13G GEOSPACE TECHNOLOGIES Filed by: DIMENSIONAL FUND ADVISORS LP
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