---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-104161"
form_type: "8-K"
ticker: "MNTK"
cik: "0001826600"
company_name: "Montauk Renewables, Inc."
filed_at: "2025-08-06T23:59:59+00:00"
generated_at: "2026-05-17T19:52:46.237529+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Montauk Q2 revenue up 4.1% to $45.1M; net loss widens to $5.5M; reaffirms FY guidance

## Summary
- Revenue $45.1M (+4.1% YoY); operating loss $2.4M vs operating income $0.8M in Q2 2024.
- Net loss $5.5M vs $0.7M loss in Q2 2024; adjusted EBITDA $5.0M (down 27.7% YoY).
- Average realized RIN price $2.42, down 22.4% YoY; 3.0M RINs unseparated due to EPA BRRR rule.
- Completed second RNG facility at Apex; signed 10-year PPA at avg $48/MWh for NC project; formed GreenWave JV.
- Reaffirmed FY2025 guidance: RNG rev $150-170M, production 5.8-6.0M MMBtu, REG rev $17-18M.

## SEC filing metadata
- accession: 0000950170-25-104161
- form_type: 8-K
- ticker: MNTK
- cik: 0001826600
- company_name: Montauk Renewables, Inc.
- filed_at: 2025-08-06T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1826600/000095017025104161/0000950170-25-104161-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1826600/000095017025104161/mntk-20250806.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-104161
- JSON: https://secwatch.observer/filing/0000950170-25-104161.json
- Plain text: https://secwatch.observer/filing/0000950170-25-104161.txt

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