secwatch.observer — SEC 8-K summary ====================================== Issuer: MAMMOTH ENERGY SERVICES, INC. (TUSK) CIK: 0001679268 Form: 8-K Filed at: 2025-03-12T23:59:59+00:00 Accession: 0001679268-25-000012 Event type: other Sentiment: neutral Materiality: 0.50 Item codes: 4.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Mammoth Energy dismisses Grant Thornton as auditor, appoints Deloitte & Touche ------------------------------------------------------------------------------ - Audit committee dismissed Grant Thornton LLP on March 7, 2025, effective immediately. - Deloitte & Touche LLP engaged as new independent auditor for fiscal year ending December 31, 2025. - No disagreements or reportable events existed with Grant Thornton during fiscal years 2024, 2023, or through March 7, 2025. - Grant Thornton's audit reports for 2024 and 2023 were unqualified; Grant Thornton filed a letter agreeing with the statements as Exhibit 16.1. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1679268/000167926825000012/0001679268-25-000012-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1679268/000167926825000012/tusk-20250307.htm HTML page: https://secwatch.observer/filing/0001679268-25-000012 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer