Mammoth Energy Services, Inc. SEC filings TUSK
Mammoth Energy Services, Inc. has 369 filings in SEC EDGAR's recent list, going back to Jul 18, 2016. Its latest annual report, Form ARS, was filed on May 15, 2026 for the period ended May 15, 2026. The latest quarterly report (Form 10-Q) was filed on Oct 30, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 30, 2026 (material agreement, new debt, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Oct 30, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Oct 30, 2026 | Oct 26, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 30, 2026 | Oct 30, 2026 |
| 10-Q | Quarterly report | Aug 7, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 7, 2026 | Aug 7, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 26, 2026 | Jun 25, 2026 |
| ARS | Annual report to shareholders | May 15, 2026 | May 15, 2026 |
| DEFA14A | Additional proxy material | May 15, 2026 | — |
| DEF 14A | Proxy statement | May 15, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Auditor change
|
May 15, 2026 | May 13, 2026 |
| 10-Q | Quarterly report | May 11, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 11, 2026 | May 11, 2026 |
| 10-K | Annual report | Mar 6, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 6, 2026 | Mar 6, 2026 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Regulation FD disclosure
|
Dec 4, 2025 | Dec 2, 2025 |
| 10-Q | Quarterly report | Nov 3, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 31, 2025 | Oct 31, 2025 |
| 10-Q | Quarterly report | Aug 8, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2025 | Aug 8, 2025 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Jul 3, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Officer or director change
|
Jun 30, 2025 | Jun 24, 2025 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Impairment
|
Jun 20, 2025 | Jun 16, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2025 | Jun 11, 2025 |
| 8-K |
Current report
Officer or director change
|
Jun 5, 2025 | May 30, 2025 |
| 10-Q | Quarterly report | May 7, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 7, 2025 | May 7, 2025 |
| ARS | Annual report to shareholders | Apr 28, 2025 | Apr 28, 2025 |
| DEFA14A | Additional proxy material | Apr 28, 2025 | — |
| DEF 14A | Proxy statement | Apr 28, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Officer or director change, Regulation FD disclosure
|
Apr 17, 2025 | Apr 11, 2025 |
| 8-K |
Current report
Auditor change
|
Mar 12, 2025 | Mar 7, 2025 |
| 10-K | Annual report | Mar 7, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 7, 2025 | Mar 7, 2025 |
| 8-K |
Current report
Officer or director change
|
Feb 13, 2025 | Feb 10, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 7, 2024 | Nov 6, 2024 |
| 10-Q | Quarterly report | Nov 1, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 1, 2024 | Nov 1, 2024 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Oct 21, 2024 | Oct 16, 2024 |
| 8-K |
Current report
Agreement ended, Regulation FD disclosure
|
Oct 3, 2024 | Oct 1, 2024 |
| 10-Q | Quarterly report | Aug 9, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 9, 2024 | Aug 9, 2024 |
| 8-K |
Current report
Material agreement, Impairment
|
Jul 23, 2024 | Jul 22, 2024 |
| EFFECT | Filing | Jun 26, 2024 | — |
| CORRESP | Letter to the SEC | Jun 24, 2024 | — |
| UPLOAD | Letter from the SEC | Jun 21, 2024 | — |
| 8-K |
Current report
Shareholder vote results
|
Jun 14, 2024 | Jun 12, 2024 |
| S-3 | Shelf registration | Jun 13, 2024 | — |
| S-8 | Employee stock plan registration | Jun 12, 2024 | — |
| 10-Q | Quarterly report | May 2, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 2, 2024 | May 2, 2024 |
| ARS | Annual report to shareholders | Apr 29, 2024 | Apr 29, 2024 |
| DEFA14A | Additional proxy material | Apr 29, 2024 | — |
| DEF 14A | Proxy statement | Apr 29, 2024 | Dec 31, 2023 |
| 10-K | Annual report | Mar 1, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 1, 2024 | Mar 1, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 6, 2023 | Dec 1, 2023 |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 9, 2023 | Nov 9, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 19, 2023 | Oct 16, 2023 |
| 10-Q | Quarterly report | Aug 11, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 11, 2023 | Aug 11, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 8, 2023 | Jun 7, 2023 |
| 10-Q | Quarterly report | May 1, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 27, 2023 | Apr 27, 2023 |
| ARS | Annual report to shareholders | Apr 25, 2023 | Apr 25, 2023 |
| DEFA14A | Additional proxy material | Apr 25, 2023 | — |
| DEF 14A | Proxy statement | Apr 25, 2023 | Dec 31, 2022 |
| 10-K | Annual report | Feb 24, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 23, 2023 | Feb 23, 2023 |
| 10-Q | Quarterly report | Oct 28, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 27, 2022 | Oct 27, 2022 |
| 10-Q | Quarterly report | Aug 2, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 28, 2022 | Jul 28, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Jun 30, 2022 | Jun 29, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
May 24, 2022 | May 24, 2022 |
| 10-Q | Quarterly report | May 10, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 9, 2022 | May 9, 2022 |
| DEFA14A | Additional proxy material | May 2, 2022 | — |
| DEF 14A | Proxy statement | May 2, 2022 | Dec 31, 2021 |
| 10-K | Annual report | Mar 4, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 4, 2022 | Mar 4, 2022 |
| 10-Q | Quarterly report | Nov 5, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 5, 2021 | Nov 5, 2021 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Nov 3, 2021 | Oct 28, 2021 |
| 8-K |
Current report
Other events
|
Sep 27, 2021 | Sep 21, 2021 |
| 10-Q | Quarterly report | Aug 3, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 30, 2021 | Jul 30, 2021 |
| EFFECT | Filing | Jul 12, 2021 | — |
| CORRESP | Letter to the SEC | Jul 8, 2021 | — |
| UPLOAD | Letter from the SEC | Jun 25, 2021 | — |
| S-3 | Shelf registration | Jun 21, 2021 | — |
| 8-K |
Current report
Other events
|
Jun 9, 2021 | Jun 8, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Jun 4, 2021 | Jun 2, 2021 |
| 10-Q | Quarterly report | May 3, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Apr 29, 2021 | Apr 29, 2021 |
| DEFA14A | Additional proxy material | Apr 20, 2021 | — |
| DEF 14A | Proxy statement | Apr 20, 2021 | Dec 31, 2020 |
| 10-K | Annual report | Mar 1, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 25, 2021 | Feb 25, 2021 |
| 10-Q | Quarterly report | Oct 30, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 29, 2020 | Oct 29, 2020 |
| 8-K |
Current report
Other events
|
Aug 19, 2020 | Aug 17, 2020 |
| 8-K |
Current report
Officer or director change
|
Aug 12, 2020 | Aug 6, 2020 |
| 10-Q | Quarterly report | Jul 31, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 30, 2020 | Jul 30, 2020 |
| 8-K |
Current report
Shareholder vote results
|
Jul 2, 2020 | Jul 2, 2020 |
| DEFA14A | Additional proxy material | Jun 16, 2020 | — |
| DEF 14A | Proxy statement | Jun 10, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jun 9, 2020 | Jun 9, 2020 |
| 8-K |
Current report
Other events
|
Jun 9, 2020 | Jun 9, 2020 |
| 8-K |
Current report
Listing notice
|
May 22, 2020 | May 18, 2020 |
| 8-K |
Current report
Officer or director change
|
May 14, 2020 | May 8, 2020 |
| 10-Q | Quarterly report | May 11, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 11, 2020 | May 11, 2020 |
| 8-K |
Current report
Other events
|
Apr 29, 2020 | Apr 29, 2020 |
| 8-K |
Current report
Listing notice
|
Apr 22, 2020 | Apr 17, 2020 |
| 8-K |
Current report
Officer or director change
|
Apr 17, 2020 | Apr 14, 2020 |
| 10-K | Annual report | Mar 2, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 27, 2020 | Feb 27, 2020 |
| 8-K |
Current report
Agreement ended
|
Dec 23, 2019 | Dec 18, 2019 |
| 8-K |
Current report
Officer or director change
|
Nov 20, 2019 | Nov 18, 2019 |
| 10-Q | Quarterly report | Nov 12, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 7, 2019 | Nov 7, 2019 |
| 10-Q | Quarterly report | Aug 5, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 1, 2019 | Aug 1, 2019 |
| 8-K |
Current report
Shareholder vote results
|
Jun 7, 2019 | Jun 5, 2019 |
| 10-Q | Quarterly report | May 3, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 1, 2019 | May 1, 2019 |
| DEFA14A | Additional proxy material | Apr 26, 2019 | — |
| DEF 14A | Proxy statement | Apr 26, 2019 | Apr 26, 2019 |
| 10-K | Annual report | Mar 18, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 14, 2019 | Mar 14, 2019 |
| 8-K |
Current report
Officer or director change
|
Jan 29, 2019 | Jan 25, 2019 |
| 8-K |
Current report
Material agreement
|
Dec 28, 2018 | Dec 21, 2018 |
| CT ORDER | Filing | Nov 13, 2018 | — |
| 10-Q | Quarterly report | Nov 2, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 31, 2018 | Oct 31, 2018 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 25, 2018 | Oct 19, 2018 |
| CT ORDER | Filing | Oct 25, 2018 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 4, 2018 | Sep 4, 2018 |
| 10-Q | Quarterly report | Aug 8, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 6, 2018 | Aug 6, 2018 |
| 8-K |
Current report
Material agreement, New debt
|
Jul 13, 2018 | Jul 9, 2018 |
| 8-K |
Current report
Material agreement, Other events
|
Jul 2, 2018 | Jun 26, 2018 |
| 424B5 | Prospectus supplement | Jun 28, 2018 | — |
| 424B5 | Prospectus supplement | Jun 26, 2018 | — |
| EFFECT | Filing | Jun 19, 2018 | — |
| CORRESP | Letter to the SEC | Jun 15, 2018 | — |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2018 | Jun 7, 2018 |
| S-3/A | Form s-3 (amend. no. 1) | Jun 6, 2018 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
May 31, 2018 | May 26, 2018 |
| UPLOAD | Letter from the SEC | May 29, 2018 | — |
| CORRESP | Letter to the SEC | May 4, 2018 | — |
| 10-Q | Quarterly report | May 4, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 2, 2018 | May 2, 2018 |
| DEFA14A | Additional proxy material | Apr 25, 2018 | — |
| DEF 14A | Proxy statement | Apr 25, 2018 | Apr 25, 2018 |
| UPLOAD | Letter from the SEC | Apr 24, 2018 | — |
| CORRESP | Letter to the SEC | Apr 10, 2018 | — |
| UPLOAD | Letter from the SEC | Apr 4, 2018 | — |
| 10-K | Annual report | Feb 28, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 22, 2018 | Feb 21, 2018 |
| CORRESP | Letter to the SEC | Feb 6, 2018 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure, Other events
|
Jan 31, 2018 | Jan 28, 2018 |
| CORRESP | Letter to the SEC | Jan 24, 2018 | — |
| CORRESP | Letter to the SEC | Jan 17, 2018 | — |
| UPLOAD | Letter from the SEC | Jan 3, 2018 | — |
| CORRESP | Letter to the SEC | Dec 12, 2017 | — |
| UPLOAD | Letter from the SEC | Dec 4, 2017 | — |
| 10-Q | Quarterly report | Nov 14, 2017 | Sep 30, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 2, 2017 | Nov 2, 2017 |
| S-3 | Shelf registration | Nov 1, 2017 | — |
| 8-K |
Current report
Results of operations, Other events
|
Oct 27, 2017 | Oct 26, 2017 |
| 8-K |
Current report
Results of operations, Other events
|
Oct 27, 2017 | Oct 26, 2017 |
| 10-Q | Quarterly report | Aug 4, 2017 | Jun 30, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 3, 2017 | Aug 3, 2017 |
| 8-K/A |
Amended current report
Material agreement
|
Aug 2, 2017 | Aug 2, 2017 |
| 8-K |
Current report
Acquisition or sale of assets
|
Aug 2, 2017 | Aug 2, 2017 |
| 8-K |
Current report
Officer or director change
|
Jun 27, 2017 | Jun 27, 2017 |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2017 | Jun 12, 2017 |
| 8-K |
Current report
Acquisition or sale of assets, Regulation FD disclosure
|
Jun 9, 2017 | Jun 9, 2017 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Regulation FD disclosure
|
May 31, 2017 | May 31, 2017 |
| 10-Q | Quarterly report | May 15, 2017 | Mar 31, 2017 |
| DEFM14C | Filing | May 15, 2017 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 4, 2017 | May 3, 2017 |
| PREM14C | Filing | May 3, 2017 | May 3, 2017 |
| DEFA14A | Additional proxy material | Apr 28, 2017 | — |
| DEF 14A | Proxy statement | Apr 28, 2017 | Apr 28, 2017 |
| S-8 | Employee stock plan registration | Apr 18, 2017 | — |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Mar 29, 2017 | Mar 29, 2017 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Mar 24, 2017 | Mar 24, 2017 |
| 10-K | Annual report | Feb 24, 2017 | Dec 31, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 23, 2017 | Feb 23, 2017 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jan 10, 2017 | Jan 4, 2017 |
| 8-K |
Current report
Other events
|
Nov 16, 2016 | Nov 15, 2016 |
| 10-Q | Quarterly report | Nov 10, 2016 | Sep 30, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 9, 2016 | Nov 9, 2016 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Oct 19, 2016 | Oct 13, 2016 |
| 424B4 | Prospectus | Oct 17, 2016 | — |
| CT ORDER | Filing | Oct 14, 2016 | — |
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 Services, NEC (SIC 1389)
- Listed as
- TUSK (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Oklahoma City, OK
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 1679268
Other Oil & Gas Field Services, NEC companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.