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: 24
Latest filed: Apr 06, 2026
| Form | Count |
|---|---|
| 4 | 13 |
| SCHEDULE 13G/A | 5 |
| 8-K | 4 |
| SCHEDULE 13G | 1 |
| 4/A | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Apr 06, 2026 | 8-K | Apr 02, 2026 | 0001437749-26-011402 | View |
| Mar 26, 2026 | SCHEDULE 13G/A | — | 0000102909-26-001309 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | — | 0001050442-26-000005 | View |
| Feb 09, 2026 | 4 | Feb 09, 2026 | 0001437749-26-003429 | View |
| Feb 09, 2026 | 4 | Feb 09, 2026 | 0001437749-26-003430 | View |
| Feb 09, 2026 | 4 | Feb 09, 2026 | 0001437749-26-003431 | View |
| Feb 09, 2026 | 4 | Feb 09, 2026 | 0001437749-26-003433 | View |
| Feb 09, 2026 | 4 | Feb 09, 2026 | 0001437749-26-003435 | View |
| Feb 09, 2026 | 4 | Feb 09, 2026 | 0001437749-26-003437 | View |
| Feb 05, 2026 | 8-K | Feb 05, 2026 | 0001437749-26-003153 | View |
| Feb 04, 2026 | 8-K | Feb 04, 2026 | 0001437749-26-003016 | View |
| Jan 30, 2026 | SCHEDULE 13G | — | 0000102909-26-000214 | View |
| Dec 05, 2025 | 4/A | Nov 20, 2025 | 0001437749-25-036981 | View |
| Dec 05, 2025 | 4 | Dec 05, 2025 | 0001437749-25-036997 | View |
| Dec 05, 2025 | 4 | Dec 05, 2025 | 0001437749-25-036998 | View |
| Dec 05, 2025 | 4 | Dec 05, 2025 | 0001437749-25-036999 | View |
| Dec 01, 2025 | 4 | Nov 25, 2025 | 0001437749-25-036509 | View |
| Nov 25, 2025 | 4 | Nov 20, 2025 | 0001437749-25-036260 | View |
| Nov 25, 2025 | 4 | Nov 20, 2025 | 0001437749-25-036262 | View |
| Nov 25, 2025 | 4 | Nov 20, 2025 | 0001437749-25-036289 | View |
| Nov 20, 2025 | 8-K | Nov 20, 2025 | 0001437749-25-035875 | View |
| Nov 14, 2025 | SCHEDULE 13G/A | — | 0001050442-25-000039 | View |
| Oct 30, 2025 | SCHEDULE 13G/A | — | 0000102909-25-000177 | View |
| Oct 09, 2025 | SCHEDULE 13G/A | — | 0000354204-25-001276 | View |