GEOSPACE TECHNOLOGIES CORP - GEOS
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 8
Latest filed: Aug 14, 2026
| Form | Count |
|---|---|
| SCHEDULE 13G/A | 4 |
| 8-K | 3 |
| SCHEDULE 13G | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Aug 14, 2026 | SCHEDULE 13G/A | — | 0001050442-26-000031 | View |
| Aug 07, 2026 | 8-K | Aug 06, 2026 | 0001437749-26-026445 | View |
| Jul 31, 2026 | SCHEDULE 13G/A | — | 0002100119-26-001397 | View |
| May 15, 2026 | SCHEDULE 13G/A | — | 0001050442-26-000015 | View |
| May 07, 2026 | 8-K | May 07, 2026 | 0001437749-26-015666 | View |
| Apr 29, 2026 | SCHEDULE 13G | — | 0002100119-26-000533 | View |
| Apr 06, 2026 | 8-K | Apr 02, 2026 | 0001437749-26-011402 | View |
| Mar 26, 2026 | SCHEDULE 13G/A | — | 0000102909-26-001309 | View |