Geospace Technologies Corp SEC filings GEOS
Geospace Technologies Corp has 1,000 filings in SEC EDGAR's recent list, going back to Feb 6, 1998. Its latest annual report, Form 10-K, was filed on Nov 21, 2025 for the period ended Sep 30, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 7, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 3, 2026 (material agreement, agreement ended, new debt). The company's fiscal year ends on September 30.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Nov 3, 2026 | Oct 29, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 7, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 10-Q | Quarterly report | Aug 7, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2026 | Aug 6, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 31, 2026 | — |
| SD | Specialized disclosure (conflict minerals) | May 19, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 10-Q | Quarterly report | May 8, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 8-K |
Current report
Exit or restructuring costs
|
Apr 6, 2026 | Apr 2, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 10-Q | Quarterly report | Feb 12, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Feb 9, 2026 | Feb 9, 2026 |
| 4 | Insider transaction | Feb 9, 2026 | Feb 9, 2026 |
| 4 | Insider transaction | Feb 9, 2026 | Feb 9, 2026 |
| 4 | Insider transaction | Feb 9, 2026 | Feb 9, 2026 |
| 4 | Insider transaction | Feb 9, 2026 | Feb 9, 2026 |
| 4 | Insider transaction | Feb 9, 2026 | Feb 9, 2026 |
| NT 10-Q | Form nt 10-q | Feb 9, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Feb 5, 2026 | Feb 5, 2026 |
| 8-K |
Current report
Results of operations
|
Feb 4, 2026 | Feb 4, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 30, 2026 | — |
| DEF 14A | Proxy statement | Dec 23, 2025 | Feb 5, 2026 |
| DEFA14A | Additional proxy material | Dec 23, 2025 | — |
| 4 | Insider transaction | Dec 5, 2025 | Dec 5, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Dec 5, 2025 |
| 4 | Insider transaction | Dec 5, 2025 | Dec 5, 2025 |
| 4/A | Form 4/a | Dec 5, 2025 | Nov 20, 2025 |
| 4 | Insider transaction | Dec 1, 2025 | Nov 25, 2025 |
| 4 | Insider transaction | Nov 25, 2025 | Nov 20, 2025 |
| 4 | Insider transaction | Nov 25, 2025 | Nov 20, 2025 |
| 4 | Insider transaction | Nov 25, 2025 | Nov 20, 2025 |
| 10-K | Annual report | Nov 21, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 20, 2025 | Nov 20, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 9, 2025 | — |
| 8-K |
Current report
Material agreement, New debt
|
Sep 4, 2025 | Aug 29, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 10-Q | Quarterly report | Aug 8, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2025 | Aug 7, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 17, 2025 | — |
| SD | Specialized disclosure (conflict minerals) | May 21, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| 10-Q | Quarterly report | May 9, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 9, 2025 | May 8, 2025 |
| 8-K |
Current report
Material agreement
|
Mar 4, 2025 | Feb 27, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 11, 2025 | — |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 6, 2025 |
| 10-Q | Quarterly report | Feb 6, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Feb 6, 2025 | Feb 6, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 5, 2025 | Feb 5, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jan 23, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Jan 10, 2025 | Jan 3, 2025 |
| DEFA14A | Additional proxy material | Dec 27, 2024 | — |
| DEF 14A | Proxy statement | Dec 27, 2024 | Feb 6, 2025 |
| 3 | Initial insider ownership | Dec 11, 2024 | Dec 2, 2024 |
| 8-K |
Current report
Officer or director change
|
Nov 26, 2024 | Nov 21, 2024 |
| 4 | Insider transaction | Nov 22, 2024 | Nov 21, 2024 |
| 4 | Insider transaction | Nov 22, 2024 | Nov 21, 2024 |
| 4 | Insider transaction | Nov 22, 2024 | Nov 21, 2024 |
| 10-K | Annual report | Nov 22, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 21, 2024 | Nov 21, 2024 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Nov 8, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Oct 22, 2024 | — |
| 4 | Insider transaction | Oct 2, 2024 | Oct 1, 2024 |
| 8-K |
Current report
Other events
|
Sep 19, 2024 | Sep 19, 2024 |
| 10-Q | Quarterly report | Aug 9, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change, Other events
|
Aug 8, 2024 | Aug 8, 2024 |
| 10-K/A | Amended annual report | Jul 2, 2024 | Sep 30, 2023 |
| 10-K/A | Amended annual report | Jul 2, 2024 | Sep 30, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 21, 2024 | — |
| 10-Q | Quarterly report | May 10, 2024 | Mar 31, 2024 |
| 3/A | Form 3/a | May 9, 2024 | Apr 29, 2024 |
| 3 | Initial insider ownership | May 9, 2024 | Apr 29, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change, Other events
|
May 9, 2024 | May 9, 2024 |
| 4 | Insider transaction | Feb 27, 2024 | Feb 22, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 22, 2024 |
| 144 | Notice of proposed sale | Feb 21, 2024 | — |
| 4/A | Form 4/a | Feb 21, 2024 | Feb 14, 2024 |
| 4 | Insider transaction | Feb 21, 2024 | Feb 14, 2024 |
| 144 | Notice of proposed sale | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2024 | — |
| 10-Q | Quarterly report | Feb 8, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Feb 8, 2024 | Feb 7, 2024 |
| 4 | Insider transaction | Feb 8, 2024 | Feb 7, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Feb 8, 2024 | Feb 8, 2024 |
| 4 | Insider transaction | Feb 8, 2024 | Feb 7, 2024 |
| 4 | Insider transaction | Feb 8, 2024 | Feb 7, 2024 |
| 4 | Insider transaction | Feb 8, 2024 | Feb 7, 2024 |
| 4 | Insider transaction | Feb 8, 2024 | Feb 7, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 7, 2024 | Feb 7, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 1, 2024 | — |
| DEF 14A | Proxy statement | Jan 3, 2024 | Feb 8, 2024 |
| 3 | Initial insider ownership | Dec 22, 2023 | Dec 21, 2023 |
| 8-K |
Current report
Officer or director change
|
Dec 21, 2023 | Dec 21, 2023 |
| 4 | Insider transaction | Nov 17, 2023 | Nov 16, 2023 |
| 4 | Insider transaction | Nov 17, 2023 | Nov 16, 2023 |
| 4 | Insider transaction | Nov 17, 2023 | Nov 16, 2023 |
| 10-K | Annual report | Nov 17, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 17, 2023 | Nov 16, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 10, 2023 | — |
| 10-Q | Quarterly report | Aug 11, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2023 | Aug 10, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Aug 1, 2023 | Jul 26, 2023 |
| 8-K |
Current report
Officer or director change
|
Jul 6, 2023 | Jun 29, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 17, 2023 | — |
| 10-Q | Quarterly report | May 12, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 11, 2023 | May 11, 2023 |
| 8-K |
Current report
Other events
|
Feb 28, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Feb 22, 2023 | Feb 17, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2023 | — |
| 4/A | Form 4/a submission | Feb 10, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Feb 10, 2023 | Feb 9, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Feb 9, 2023 | Feb 9, 2023 |
| 10-Q | Quarterly report | Feb 9, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 8, 2023 | Feb 8, 2023 |
| SC 13G | Ownership over 5% (passive) | Jan 25, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Jan 10, 2023 | — |
| DEF 14A | Proxy statement | Jan 4, 2023 | Feb 9, 2023 |
| 4 | Insider transaction | Nov 21, 2022 | Nov 21, 2022 |
| 4 | Insider transaction | Nov 21, 2022 | Nov 21, 2022 |
| 4 | Insider transaction | Nov 21, 2022 | Nov 21, 2022 |
| 4 | Insider transaction | Nov 21, 2022 | Nov 21, 2022 |
| 10-K | Annual report | Nov 18, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 18, 2022 | Nov 17, 2022 |
| 8-K |
Current report
Officer or director change
|
Nov 4, 2022 | Nov 3, 2022 |
| 4 | Insider transaction | Sep 7, 2022 | Sep 2, 2022 |
| 4 | Insider transaction | Sep 1, 2022 | Aug 30, 2022 |
| 4 | Insider transaction | Aug 23, 2022 | Aug 19, 2022 |
| 4 | Insider transaction | Aug 17, 2022 | Aug 15, 2022 |
| 10-Q | Quarterly report | Aug 10, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2022 | Aug 9, 2022 |
| 8-K |
Current report
Other events
|
Aug 9, 2022 | Aug 5, 2022 |
| 4 | Insider transaction | May 19, 2022 | May 17, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 19, 2022 | — |
| 10-Q | Quarterly report | May 12, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 12, 2022 | May 11, 2022 |
| 8-K |
Current report
Material agreement, New debt
|
May 10, 2022 | May 6, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | May 10, 2022 | — |
| 8-K |
Current report
Other events
|
Apr 28, 2022 | Apr 27, 2022 |
| 4 | Insider transaction | Feb 28, 2022 | Feb 25, 2022 |
| 4 | Insider transaction | Feb 25, 2022 | Feb 23, 2022 |
| 4 | Insider transaction | Feb 24, 2022 | Feb 22, 2022 |
| 4 | Insider transaction | Feb 17, 2022 | Feb 17, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 15, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 8, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2022 | — |
| 4 | Insider transaction | Feb 3, 2022 | Feb 2, 2022 |
| 4 | Insider transaction | Feb 3, 2022 | Feb 2, 2022 |
| 4 | Insider transaction | Feb 3, 2022 | Feb 2, 2022 |
| 4 | Insider transaction | Feb 3, 2022 | Feb 2, 2022 |
| 4 | Insider transaction | Feb 3, 2022 | Feb 2, 2022 |
| 4 | Insider transaction | Feb 3, 2022 | Feb 2, 2022 |
| 4 | Insider transaction | Feb 3, 2022 | Feb 2, 2022 |
| 8-K |
Current report
Results of operations, Shareholder vote results
|
Feb 2, 2022 | Feb 1, 2022 |
| 10-Q | Quarterly report | Feb 2, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Other events
|
Jan 20, 2022 | Jan 19, 2022 |
| DEF 14A | Proxy statement | Jan 3, 2022 | Feb 2, 2022 |
| 4 | Insider transaction | Nov 22, 2021 | Nov 18, 2021 |
| 4 | Insider transaction | Nov 22, 2021 | Nov 18, 2021 |
| 4 | Insider transaction | Nov 22, 2021 | Nov 18, 2021 |
| 4 | Insider transaction | Nov 22, 2021 | Nov 18, 2021 |
| 10-K | Annual report | Nov 19, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 19, 2021 | Nov 18, 2021 |
| 8-K |
Current report
Other events
|
Nov 4, 2021 | Nov 3, 2021 |
| S-8 | Employee stock plan registration | Aug 27, 2021 | — |
| 4 | Insider transaction | Aug 12, 2021 | Aug 12, 2021 |
| 10-Q | Quarterly report | Aug 6, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2021 | Aug 5, 2021 |
| 8-K |
Current report
Other events
|
Jul 22, 2021 | Jul 21, 2021 |
| SD | Specialized disclosure (conflict minerals) | May 24, 2021 | — |
| 10-Q | Quarterly report | May 7, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
May 7, 2021 | May 6, 2021 |
| 8-K |
Current report
Other events
|
Apr 28, 2021 | Apr 27, 2021 |
| 8-K |
Current report
Material agreement
|
Mar 29, 2021 | Mar 25, 2021 |
| SC 13G | Ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2021 | — |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Measuring & Controlling Devices, NEC (SIC 3829)
- Listed as
- GEOS (Nasdaq)
- Fiscal year ends
- September 30
- Incorporated in
- TX
- Headquarters
- Houston, TX
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 1001115
- Former names
- OYO GEOSPACE CORP (until Oct 1, 2012)
Other Measuring & Controlling Devices, NEC companies
- Thermo Fisher Scientific Inc. TMO
- Rockwell Automation, Inc ROK
- Trimble Inc. TRMB
- Onto Innovation Inc. ONTO
- Mirion Technologies, Inc. MIR
- Quantum-Si Inc QSI
- Owlet, Inc. OWLT
- Birchtech Corp. BCHT
Source: SEC EDGAR filings. This is company-reported data, not investment advice.