As of November 6, 2026, Mammoth Energy Services, Inc. is a publicly traded company (Nasdaq: TUSK); its largest reported holder is Wexford Capital LP, with 25.06% on Schedule 13G/A of June 22, 2026. The largest insider holding is Charles E. Davidson, the chief business officer and a director, with 18,673,038 shares (38.8% of shares outstanding), per Form 4 of June 22, 2026 (Schedule 13G/A, June 22, 2026).
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Is Mammoth Energy Services, Inc. a real, registered company?
- Mammoth Energy Services, Inc. files with the SEC under CIK 1679268 (its SEC filings).
- Its shares are listed under the ticker TUSK on Nasdaq (SEC company record).
- Incorporated in Delaware; business address in Oklahoma City, Oklahoma, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Mammoth Energy Services, Inc. in our court records and SEC 8-K records (as of 2026-11-06).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Wexford Capital LP (filed 2026-06-22).
Who are Mammoth Energy Services, Inc.'s owners and officers?
Mammoth Energy Services, Inc.: incorporated in Delaware; business address in Oklahoma City, Oklahoma; industry Oil & Gas Field Services, NEC (Schedule 13G/A, 2026-06-22).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G/A, 2026-06-22 | Wexford Capital LP | 25.06% |
| Schedule 13G, 2026-06-22 | Charles E. Davidson | 13.43% |
| Schedule 13G/A, 2025-08-14 | Valueworks LLC | 4.96% |
Questions about who owns Mammoth Energy Services, Inc.
Who owns Mammoth Energy Services, Inc.?
On this page, 2 holders' latest ownership filings report 5% or more of Mammoth Energy Services, Inc.: Wexford Capital LP (25.06%, Schedule 13G/A, filed 2026-06-22) and Charles E. Davidson (13.43%, Schedule 13G, filed 2026-06-22).
Who are the largest shareholders of Mammoth Energy Services, Inc.?
By the share each holder's latest filing reports, the largest holders of Mammoth Energy Services, Inc. on this page are Wexford Capital LP (25.06%) and Charles E. Davidson (13.43%).
When did Wexford Capital LP buy into Mammoth Energy Services, Inc.?
The filings give report dates, not purchase dates. The earliest filing from Wexford Capital LP on this page is the Schedule 13G/A, filed 2026-06-22, reporting 25.06%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 3 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Which insiders own Mammoth Energy Services, Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief business officer and a director: 18,673,038 shares (38.8% of shares outstanding), 1,451,034 held directly and 17,222,004 indirectly, on a joint filing (Form 4, 2026-06-22).
- Wexford Capital LP, the chief business officer and a director: 18,673,038 shares (38.8% of shares outstanding), 1,451,034 held directly and 17,222,004 indirectly, on a joint filing (Form 4, 2026-06-22).
- , the chief business officer and a director: 18,673,038 shares (38.8% of shares outstanding), 1,451,034 held directly and 17,222,004 indirectly, on a joint filing (Form 4, 2026-06-22).
- Wexford GP LLC, the chief business officer and a director: 18,673,038 shares (38.8% of shares outstanding), 1,451,034 held directly and 17,222,004 indirectly, on a joint filing (Form 4, 2026-06-22).
- CD Holding Company, LLC, a 10% owner: 6,470,441 shares (13.4% of shares outstanding), 2,403,831 held directly and 4,066,610 indirectly, on a joint filing (Form 4, 2026-06-22).
Shares outstanding: 48,127,585 as of 2026-10-27, from the company's latest SEC cover page.
How much has Mammoth Energy Services, Inc. raised?
Acquisitions reported on Form 8-K, Item 2.01: completed an acquisition (2025-12-04).
Keep reading
More on Mammoth Energy Services, Inc. and the records around it.
Mammoth Energy Services, Inc. elsewhere on the record
- 5%+ stake filings Jun 2026
Companies that share a holder
- Charles E. Davidson also filed stake reports on 1 other company: Nephros, Inc. (Sep 2026)
- Wexford Capital LP also filed stake reports on 5 other companies: Nephros, Inc. (Sep 2026), MOBILICOM LIMITED (Jul 2026), SOLITARIO RESOURCES CORP. (Feb 2026)
Related pages
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