---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-267090"
form_type: "8-K"
ticker: "MNTK"
cik: "0001826600"
company_name: "Montauk Renewables, Inc."
filed_at: "2025-11-05T23:59:59+00:00"
generated_at: "2026-05-17T00:23:41.978540+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Montauk Q3 revenue $45.3M (-31.3% YoY); net income $5.2M (-69.5%); guidance unchanged

## Summary
- Adjusted EBITDA $12.8M, down 56.4% YoY; average realized RIN price $2.29 (-31.4%).
- RNG production 1.4M MMBtu (+3.8% YoY); RINs sold 12.4M (-21.2% YoY).
- D3 RIN index price averaged $2.19 in Q3 vs $3.36 a year ago (-34.8%).
- FY2025 outlook unchanged: RNG revenue $150-170M, production 5.8-6.0M MMBtu.
- Filed comments with NCUC regarding swine REC compliance; EPA rule finalization may extend into 2026.

## SEC filing metadata
- accession: 0001193125-25-267090
- form_type: 8-K
- ticker: MNTK
- cik: 0001826600
- company_name: Montauk Renewables, Inc.
- filed_at: 2025-11-05T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1826600/000119312525267090/0001193125-25-267090-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1826600/000119312525267090/mntk-20251105.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-267090
- JSON: https://secwatch.observer/filing/0001193125-25-267090.json
- Plain text: https://secwatch.observer/filing/0001193125-25-267090.txt

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