---
schema_version: "secwatch.filing_event.v1"
accession: "0001679268-25-000015"
form_type: "8-K"
ticker: "TUSK"
cik: "0001679268"
company_name: "MAMMOTH ENERGY SERVICES, INC."
filed_at: "2025-04-17T23:59:59+00:00"
generated_at: "2026-05-23T11:57:33.793998+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Mammoth Energy sells infrastructure units for $108.7M; CEO to depart, share buyback authorized

## Summary
- Aggregate sale price $108.7M; net cash proceeds of $98.3M; $10.4M escrow for post-closing adjustments.
- CEO Phil Lancaster will join buyer Peak by July 1, 2025; board initiated search for successor.
- Authorized share repurchases up to $50M or 10M shares through March 2026, subject to minimum $50M cash balance.
- Cash balance grows to ~$160M; purchased 8 small passenger aircraft for $11.5M under long-term leases.
- Preliminary Q1 2025 indicates sequential improvement and positive Adjusted EBITDA.

## SEC filing metadata
- accession: 0001679268-25-000015
- form_type: 8-K
- ticker: TUSK
- cik: 0001679268
- company_name: MAMMOTH ENERGY SERVICES, INC.
- filed_at: 2025-04-17T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 2.01, 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1679268/000167926825000015/0001679268-25-000015-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1679268/000167926825000015/tusk-20250411.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001679268-25-000015
- JSON: https://secwatch.observer/filing/0001679268-25-000015.json
- Plain text: https://secwatch.observer/filing/0001679268-25-000015.txt

## Key facts
- M&A Transactions
  MAMMOTH ENERGY SERVICES, INC. completed a disposition involving Peak Utility Services Group, Inc. for $108.7 million (closed 2025-04-11).
  - Action: disposition
  - Counterparty: Peak Utility Services Group, Inc.
  - Consideration: $108.7 million
  - Closing: 2025-04-11
  source text: The Transaction was completed simultaneously with the signing of the Agreement on April 11, 2025. The aggregate sales price in connection with the Transaction was approximately $108.7 million, subject to customary post-closing adjustments. Of the $108.7 million, $98.3 million was paid to Lion and the remaining $10.4 million was deposited into an escrow account for the
  evidence_url: https://www.sec.gov/Archives/edgar/data/1679268/000167926825000015/0001679268-25-000015-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.