DISCIPLINED GROWTH INVESTORS INC /MN 13D and 13G filings for Geospace Technologies Corporation:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-11-14 3:50 pm Sale | 2025-09-30 | 13G | Geospace Technologies Corporation GEOS | DISCIPLINED GROWTH INVESTORS INC /MN | 1,153,589 9.000% | -91,180 (-7.33%) | Filing |
| 2025-08-14 7:20 pm Sale | 2025-06-30 | 13G | Geospace Technologies Corporation GEOS | DISCIPLINED GROWTH INVESTORS INC /MN | 1,244,769 9.700% | -23,561 (-1.86%) | Filing |
| 2025-05-15 4:15 pm Sale | 2025-03-31 | 13G | Geospace Technologies Corporation GEOS | DISCIPLINED GROWTH INVESTORS INC /MN | 1,268,330 9.900% | -157,184 (-11.03%) | Filing |
| 2025-02-14 2:59 pm Sale | 2024-12-31 | 13G | Geospace Technologies Corporation GEOS | DISCIPLINED GROWTH INVESTORS INC /MN | 1,425,514 11.200% | -130,526 (-8.39%) | Filing |
| 2024-11-14 4:24 pm Purchase | 2024-09-30 | 13G | Geospace Technologies Corporation GEOS | DISCIPLINED GROWTH INVESTORS INC /MN | 1,556,040 12.100% | 65,905 (+4.42%) | Filing |
| 2024-02-14 12:10 pm Sale | 2023-12-31 | 13G | Geospace Technologies Corporation GEOS | DISCIPLINED GROWTH INVESTORS INC /MN | 1,490,135 11.190% | -43,655 (-2.85%) | Filing |
| 2023-02-14 3:36 pm Purchase | 2022-12-31 | 13G | Geospace Technologies Corporation GEOS | DISCIPLINED GROWTH INVESTORS INC /MN | 1,533,790 11.780% | 40,878 (+2.74%) | Filing |
| 2022-02-14 5:34 pm Purchase | 2021-12-31 | 13G | Geospace Technologies Corporation GEOS | DISCIPLINED GROWTH INVESTORS INC /MN | 1,492,912 11.500% | 136,231 (+10.04%) | Filing |
| 2021-02-16 5:28 pm Purchase | 2020-12-31 | 13G | Geospace Technologies Corporation GEOS | DISCIPLINED GROWTH INVESTORS INC /MN | 1,356,681 9.920% | 1,356,681 (New Position) | Filing |