MAMMOTH ENERGY SERVICES, INC. 8-K

What Happened

• Mammoth Energy Services, Inc. (TUSK) announced that its Audit Committee approved the dismissal of Deloitte & Touche LLP as the company's independent registered public accounting firm on May 13, 2026. The company informed Deloitte of the dismissal the same day.
• The filing states there were no disagreements with Deloitte during the fiscal year ended December 31, 2025 or the interim period January 1, 2026 through May 13, 2026, and there were no “reportable events” under Item 304(a)(1)(v) of Regulation S‑K. Deloitte’s audit report for the year ended December 31, 2025 was not adverse, did not include a disclaimer, and was not qualified or modified.

Key Details

• Date of Audit Committee approval and notice to Deloitte: May 13, 2026.
• Reporting periods reviewed: Fiscal year ended December 31, 2025, and interim Jan 1–May 13, 2026.
• No disagreements on accounting principles, disclosure, or audit scope; no reportable events cited.
• Exhibit included: Deloitte & Touche LLP letter dated May 15, 2026 (Exhibit 16.1).

Why It Matters

• A change of independent auditor is material corporate governance news and may be relevant to investors monitoring the company’s financial reporting and controls.
• Because the company reported no disagreements and Deloitte’s 2025 audit was unmodified, this filing does not signal an immediate accounting dispute or an adverse audit opinion.
• Investors should watch for disclosure of the successor auditor and any related impacts on future filings or audit timetables.