Dawson Geophysical Co SEC filings DWSN
Dawson Geophysical Co has 1,000 filings in SEC EDGAR's recent list, going back to Nov 29, 2004. Its latest annual report, Form 10-K, was filed on Mar 31, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 13, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 29, 2026 | Oct 27, 2026 |
| 4 | Insider transaction | Oct 29, 2026 | Oct 27, 2026 |
| 10-Q | Quarterly report | Aug 14, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2026 | Aug 13, 2026 |
| 4 | Insider transaction | Jul 1, 2026 | Jun 30, 2026 |
| 10-Q | Quarterly report | May 15, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 14, 2026 | May 14, 2026 |
| 10-K/A | Amended annual report | Apr 30, 2026 | Dec 31, 2025 |
| 10-K | Annual report | Mar 31, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 31, 2026 | Mar 30, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 5, 2026 | — |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 10-Q | Quarterly report | Nov 13, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2025 | Nov 12, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Nov 6, 2025 | Oct 31, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Oct 29, 2025 | — |
| 4 | Insider transaction | Oct 28, 2025 | Oct 27, 2025 |
| 4 | Insider transaction | Oct 28, 2025 | Oct 27, 2025 |
| 4 | Insider transaction | Sep 9, 2025 | Sep 9, 2025 |
| 4 | Insider transaction | Aug 21, 2025 | Aug 20, 2025 |
| 4 | Insider transaction | Aug 18, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 18, 2025 | Aug 15, 2025 |
| 10-Q | Quarterly report | Aug 13, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2025 | Aug 12, 2025 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, New debt, Regulation FD disclosure
|
Aug 11, 2025 | Aug 8, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 20, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 17, 2025 | Jun 13, 2025 |
| 4 | Insider transaction | Jun 9, 2025 | Jun 6, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 4 | Insider transaction | May 20, 2025 | May 16, 2025 |
| 10-Q | Quarterly report | May 14, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 13, 2025 | May 13, 2025 |
| DEF 14A | Proxy statement | Apr 30, 2025 | Jun 17, 2025 |
| 10-K | Annual report | Apr 2, 2025 | Dec 31, 2024 |
| NT 10-K | Filing | Apr 1, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 28, 2025 | Mar 28, 2025 |
| 4 | Insider transaction | Jan 21, 2025 | Jun 28, 2024 |
| 10-Q | Quarterly report | Nov 13, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2024 | Nov 12, 2024 |
| 4 | Insider transaction | Oct 4, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 4, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 4, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 4, 2024 | Oct 1, 2024 |
| 3 | Initial insider ownership | Oct 4, 2024 | Apr 12, 2022 |
| 3 | Initial insider ownership | Oct 4, 2024 | Apr 12, 2022 |
| 10-Q | Quarterly report | Aug 13, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2024 | Aug 12, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 24, 2024 | Jun 18, 2024 |
| DEFA14A | Additional proxy material | May 16, 2024 | — |
| 10-Q | Quarterly report | May 14, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 13, 2024 | May 13, 2024 |
| DEF 14A | Proxy statement | Apr 29, 2024 | Jun 18, 2024 |
| 3 | Initial insider ownership | Apr 19, 2024 | Nov 20, 2023 |
| 3 | Initial insider ownership | Apr 19, 2024 | Nov 20, 2023 |
| 10-K | Annual report | Apr 1, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 1, 2024 | Mar 28, 2024 |
| 8-K |
Current report
Officer or director change
|
Dec 20, 2023 | Dec 14, 2023 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
Dec 1, 2023 | Nov 30, 2023 |
| 8-K |
Current report
Officer or director change
|
Dec 1, 2023 | Nov 27, 2023 |
| 8-K |
Current report
Officer or director change
|
Nov 22, 2023 | Nov 17, 2023 |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2023 | Nov 9, 2023 |
| DEF 14A | Proxy statement | Nov 8, 2023 | Nov 30, 2023 |
| 3 | Initial insider ownership | Nov 2, 2023 | Jun 16, 2023 |
| 4 | Insider transaction | Oct 30, 2023 | Sep 13, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Oct 30, 2023 | — |
| PRE 14A | Preliminary proxy statement | Oct 27, 2023 | Oct 27, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Sep 19, 2023 | Sep 13, 2023 |
| DEF 14A | Proxy statement | Aug 28, 2023 | Sep 13, 2023 |
| UPLOAD | Letter from the SEC | Aug 25, 2023 | — |
| PRER14A | Filing | Aug 23, 2023 | — |
| CORRESP | Letter to the SEC | Aug 7, 2023 | — |
| PRER14A | Filing | Aug 7, 2023 | — |
| 10-Q | Quarterly report | Jul 31, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2023 | Jul 31, 2023 |
| UPLOAD | Letter from the SEC | Jul 26, 2023 | — |
| 4/A | Form 4/a submission | Jun 30, 2023 | Jun 14, 2023 |
| PRE 14A | Preliminary proxy statement | Jun 29, 2023 | Jun 29, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 29, 2023 | — |
| 8-K |
Current report
Officer or director change
|
Jun 22, 2023 | Jun 16, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 4/A | Form 4/a submission | Jun 16, 2023 | Jun 12, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Mar 24, 2023 |
| 4 | Insider transaction | Jun 14, 2023 | Jun 9, 2023 |
| 8-K/A | Amended current report | Jun 7, 2023 | Mar 21, 2023 |
| 10-Q | Quarterly report | May 15, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 15, 2023 | May 15, 2023 |
| 10-K/A | Amended annual report | May 1, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, New debt, Unregistered share sale, Other events
|
Mar 24, 2023 | Mar 21, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 13, 2023 | Mar 13, 2023 |
| 10-K | Annual report | Mar 13, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Officer or director change
|
Feb 21, 2023 | Feb 14, 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 | — |
| 8-K |
Current report
Shareholder vote results
|
Dec 22, 2022 | Dec 20, 2022 |
| DEF 14A | Proxy statement | Dec 9, 2022 | Dec 20, 2022 |
| 8-K |
Current report
Officer or director change
|
Nov 16, 2022 | Nov 16, 2022 |
| 10-Q | Quarterly report | Nov 14, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2022 | Nov 10, 2022 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 4, 2022 | Sep 30, 2022 |
| 4 | Insider transaction | Aug 18, 2022 | Aug 16, 2022 |
| 4 | Insider transaction | Aug 18, 2022 | Aug 16, 2022 |
| 4 | Insider transaction | Aug 18, 2022 | Aug 16, 2022 |
| 10-Q | Quarterly report | Aug 12, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2022 | Aug 12, 2022 |
| 8-K |
Current report
Results of operations
|
May 16, 2022 | May 16, 2022 |
| 10-Q | Quarterly report | May 16, 2022 | Mar 31, 2022 |
| 10-K/A | Amended annual report | May 2, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Officer or director change
|
Apr 13, 2022 | Apr 12, 2022 |
| 8-K |
Current report
Listing notice, Officer or director change
|
Mar 25, 2022 | Mar 22, 2022 |
| 10-K | Annual report | Mar 18, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Mar 16, 2022 | Mar 15, 2022 |
| 3 | Initial insider ownership | Mar 11, 2022 | Jan 18, 2022 |
| 8-K |
Current report
Results of operations
|
Mar 8, 2022 | Mar 8, 2022 |
| DEFM14A | Filing | Feb 22, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 17, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 28, 2022 | — |
| 3 | Initial insider ownership | Jan 27, 2022 | Jan 18, 2022 |
| 3 | Initial insider ownership | Jan 27, 2022 | Jan 18, 2022 |
| 3 | Initial insider ownership | Jan 27, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| 4 | Insider transaction | Jan 20, 2022 | Jan 18, 2022 |
| SC TO-T/A | Filing | Jan 18, 2022 | — |
| 8-K |
Current report
Acquisition or sale of assets, Change to shareholder rights, Change in control, Officer or director change, Regulation FD disclosure
|
Jan 18, 2022 | Jan 18, 2022 |
| SC 14D9/A | Filing | Jan 18, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 14, 2022 | — |
| 8-K |
Current report
Material agreement, Officer or director change
|
Jan 10, 2022 | Jan 10, 2022 |
| SC TO-T/A | Filing | Jan 10, 2022 | — |
| SC 14D9/A | Filing | Jan 10, 2022 | — |
| 8-K |
Current report
Material agreement
|
Jan 5, 2022 | Jan 4, 2022 |
| SC 13G | Ownership over 5% (passive) | Dec 21, 2021 | — |
| 8-K |
Current report
Material agreement
|
Dec 17, 2021 | Dec 14, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 7, 2021 | — |
| PREM14A | Filing | Nov 23, 2021 | Nov 23, 2021 |
| SC 14D9/A | Filing | Nov 23, 2021 | — |
| SC TO-T/A | Filing | Nov 17, 2021 | — |
| SC 14D9/A | Filing | Nov 16, 2021 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 16, 2021 | Nov 16, 2021 |
| UPLOAD | Letter from the SEC | Nov 4, 2021 | — |
| 10-Q | Quarterly report | Nov 4, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2021 | Nov 4, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 2, 2021 | Nov 2, 2021 |
| SC 14D9 | Filing | Nov 1, 2021 | — |
| SC TO-T | Filing | Nov 1, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 25, 2021 | — |
| 8-K |
Current report
Material agreement, Results of operations, Change to shareholder rights, Other events
|
Oct 25, 2021 | Oct 25, 2021 |
| SC 13D | Ownership over 5% (active) | Oct 8, 2021 | — |
| 4 | Insider transaction | Oct 1, 2021 | Sep 30, 2021 |
| 4 | Insider transaction | Oct 1, 2021 | Sep 30, 2021 |
| 4 | Insider transaction | Oct 1, 2021 | Sep 30, 2021 |
| 4 | Insider transaction | Oct 1, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 1, 2021 | Sep 30, 2021 |
| 4 | Insider transaction | Aug 17, 2021 | Aug 16, 2021 |
| 4 | Insider transaction | Aug 17, 2021 | Aug 16, 2021 |
| 4 | Insider transaction | Aug 17, 2021 | Aug 16, 2021 |
| 10-Q | Quarterly report | Aug 13, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2021 | Aug 12, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 5, 2021 | Aug 5, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jun 30, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jun 30, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jun 30, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jun 30, 2021 |
| S-8 | Employee stock plan registration | Jun 28, 2021 | — |
| 4 | Insider transaction | Jun 2, 2021 | Jun 1, 2021 |
| 4 | Insider transaction | Jun 2, 2021 | Jun 1, 2021 |
| 10-Q | Quarterly report | May 14, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
May 13, 2021 | May 13, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 12, 2021 | May 11, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
May 4, 2021 | May 4, 2021 |
| 8-A12B | Form 8-a12b | Apr 8, 2021 | — |
| 8-K |
Current report
Material agreement, Change to shareholder rights, Bylaw or fiscal year change
|
Apr 8, 2021 | Apr 8, 2021 |
| 8-K |
Current report
Officer or director change
|
Apr 5, 2021 | Apr 5, 2021 |
| DEF 14A | Proxy statement | Apr 1, 2021 | May 11, 2021 |
| 10-K | Annual report | Mar 16, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations
|
Mar 11, 2021 | Mar 11, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 26, 2021 | Feb 26, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 29, 2021 | — |
| SC 13D | Ownership over 5% (active) | Jan 19, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 10, 2020 | — |
| 10-Q | Quarterly report | Nov 3, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2020 | Oct 29, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 22, 2020 | Oct 22, 2020 |
| SC 13G | Ownership over 5% (passive) | Oct 19, 2020 | — |
| 8-K |
Current report
Material agreement, New debt, Officer or director change
|
Sep 30, 2020 | Sep 30, 2020 |
| 4 | Insider transaction | Sep 17, 2020 | Sep 15, 2020 |
| 4 | Insider transaction | Aug 11, 2020 | Aug 10, 2020 |
| 4 | Insider transaction | Aug 11, 2020 | Aug 10, 2020 |
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
- Oil & Gas Field Exploration Services (SIC 1382)
- Listed as
- DWSN (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- TX
- Headquarters
- Midland, TX
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 799165
- Former names
- TGC INDUSTRIES INC (until Feb 11, 2015)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.