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 |
|---|---|---|---|
| S-8 | Employee stock plan registration | Aug 27, 2021 | — |
| S-8 | Employee stock plan registration | May 21, 2014 | — |
| 424B1 | Definitive prospectus supplement | Feb 16, 2012 | — |
| FWP | Free writing prospectus | Feb 14, 2012 | — |
| 424B4 | Prospectus | Feb 13, 2012 | — |
| S-3 | Shelf registration | Nov 14, 2011 | — |
| S-8 POS | Post effective amendment no. 1 to form s-8 | May 23, 2007 | — |
| 424B1 | Definitive prospectus | Mar 24, 2006 | — |
| S-3/A | Amendment no. 1 to form s-3 | Mar 21, 2006 | — |
| S-3 | Shelf registration | Feb 28, 2006 | — |
| 424B3 | Prospectus | Aug 9, 2005 | — |
| 424B3 | Prospectus | Jul 29, 2005 | — |
| S-3/A | Amendment to s-3 | May 18, 2005 | — |
| S-3 | Shelf registration | Apr 25, 2005 | — |
| S-8 | Employee stock plan registration | Feb 15, 2005 | — |
| S-8 | Employee stock plan registration | Feb 15, 2005 | — |
| S-8 | Employee stock plan registration | Jun 4, 1999 | — |
Showing 17 filings. 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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
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.