GEOSPACE TECHNOLOGIES CORP — All Filings
1,000 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
144
3
3/A
4
4/A
424B1
424B3
424B4
8-A12B
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
EFFECT
FWP
NT 10-Q
PRE 14A
S-1
S-1/A
S-3
S-3/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001309 | Mar 26, 2026 | — |
| SCHEDULE 13G/A | — | 0001050442-26-000005 | Feb 17, 2026 | — |
| 10-Q | FORM 10-Q | 0001437749-26-003977 | Feb 12, 2026 | Dec 31, 2025 |
| 4 | FORM 4 | 0001437749-26-003437 | Feb 9, 2026 | — |
| 4 | FORM 4 | 0001437749-26-003435 | Feb 9, 2026 | — |
| 4 | FORM 4 | 0001437749-26-003433 | Feb 9, 2026 | — |
| 4 | FORM 4 | 0001437749-26-003431 | Feb 9, 2026 | — |
| 4 | FORM 4 | 0001437749-26-003430 | Feb 9, 2026 | — |
| 4 | FORM 4 | 0001437749-26-003429 | Feb 9, 2026 | — |
| NT 10-Q | FORM NT 10-Q | 0001437749-26-003426 | Feb 9, 2026 | Dec 31, 2025 |
| 8-K | FORM 8-K | 0001437749-26-003153 | Feb 5, 2026 | — |
| 8-K | FORM 8-K | 0001437749-26-003016 | Feb 4, 2026 | — |
| SCHEDULE 13G | — | 0000102909-26-000214 | Jan 30, 2026 | — |
| DEF 14A | FORM DEF 14A | 0001437749-25-038638 | Dec 23, 2025 | Feb 5, 2026 |
| DEFA14A | FORM DEFA14A | 0001437749-25-038639 | Dec 23, 2025 | — |
| 4 | FORM 4 | 0001437749-25-036999 | Dec 5, 2025 | — |
| 4 | FORM 4 | 0001437749-25-036998 | Dec 5, 2025 | — |
| 4 | FORM 4 | 0001437749-25-036997 | Dec 5, 2025 | — |
| 4/A | FORM 4/A | 0001437749-25-036981 | Dec 5, 2025 | Nov 20, 2025 |
| 4 | FORM 4 | 0001437749-25-036509 | Dec 1, 2025 | Nov 25, 2025 |
| 4 | FORM 4 | 0001437749-25-036289 | Nov 25, 2025 | Nov 20, 2025 |
| 4 | FORM 4 | 0001437749-25-036262 | Nov 25, 2025 | Nov 20, 2025 |
| 4 | FORM 4 | 0001437749-25-036260 | Nov 25, 2025 | Nov 20, 2025 |
| 10-K | FORM 10-K | 0001437749-25-036009 | Nov 21, 2025 | Sep 30, 2025 |
| 8-K | FORM 8-K | 0001437749-25-035875 | Nov 20, 2025 | — |
| SCHEDULE 13G/A | — | 0001050442-25-000039 | Nov 14, 2025 | — |
| SCHEDULE 13G/A | — | 0000102909-25-000177 | Oct 30, 2025 | — |
| SCHEDULE 13G/A | — | 0000354204-25-001276 | Oct 9, 2025 | — |
| 8-K | FORM 8-K | 0001001115-25-000003 | Sep 4, 2025 | Aug 29, 2025 |
| SCHEDULE 13G/A | — | 0001050442-25-000026 | Aug 14, 2025 | — |
| 10-Q | FORM 10-Q | 0001437749-25-025683 | Aug 8, 2025 | Jun 30, 2025 |
| 8-K | FORM 8-K | 0001437749-25-025555 | Aug 8, 2025 | Aug 7, 2025 |
| SCHEDULE 13G/A | — | 0002052113-25-003055 | Jul 17, 2025 | — |
| SD | FORM SD | 0001437749-25-017928 | May 21, 2025 | — |
| SCHEDULE 13G/A | — | 0001050442-25-000014 | May 15, 2025 | — |
| 10-Q | FORM 10-Q | 0001437749-25-015711 | May 9, 2025 | Mar 31, 2025 |
| 8-K | FORM 8-K | 0001437749-25-015576 | May 9, 2025 | May 8, 2025 |
| 8-K | FORM 8-K | 0001437749-25-006029 | Mar 4, 2025 | Feb 27, 2025 |
| SCHEDULE 13G/A | — | 0001050442-25-000004 | Feb 14, 2025 | — |
| SCHEDULE 13G/A | — | 0001941040-25-000118 | Feb 11, 2025 | — |
| 4 | FORM 4 | 0001437749-25-003125 | Feb 7, 2025 | Feb 6, 2025 |
| 4 | FORM 4 | 0001437749-25-003111 | Feb 7, 2025 | Feb 6, 2025 |
| 4 | FORM 4 | 0001437749-25-003110 | Feb 7, 2025 | Feb 6, 2025 |
| 4 | FORM 4 | 0001437749-25-003109 | Feb 7, 2025 | Feb 6, 2025 |
| 4 | FORM 4 | 0001437749-25-003108 | Feb 7, 2025 | Feb 6, 2025 |
| 4 | FORM 4 | 0001437749-25-003107 | Feb 7, 2025 | Feb 6, 2025 |
| 10-Q | FORM 10-Q | 0001437749-25-003000 | Feb 6, 2025 | Dec 31, 2024 |
| 8-K | FORM 8-K | 0001437749-25-002980 | Feb 6, 2025 | — |
| 8-K | FORM 8-K | 0001437749-25-002907 | Feb 5, 2025 | — |
| SCHEDULE 13G | — | 0000354204-25-000475 | Jan 23, 2025 | — |