Filing Flows › Montauk Renewables (MNTK) › Q4 2025
Montauk Renewables (MNTK) Q4 2025 earnings results (fourth quarter 2025)
10-K filed Mar 11, 2026
Montauk Renewables (MNTK) reported revenue of $43.4M for the fourth quarter 2025 (Q4 2025), +57% from a year earlier and -4% from the quarter before. Operating margin was -3.8%, net earnings $2.5M (5.7% of revenue).
Montauk Renewables, Q4 2025: revenue $43.4M (+57% year over year), operating margin -3.8%, net earnings $2.5M, operating cash flow $337K. The chart follows the revenue to costs, profit and cash.
| Q4 2025 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $43.4M | -4% | +57% |
| Operating profit | −$1.6M | -137% | — |
| Net earnings | $2.5M | -52% | — |
| Operating cash flow | $337K | -97% | -53% |
What changed
Revenue was $43.4M in Q4 2025, up 57% year over year and down 4% from the previous quarter. Natural Gas Environmental Attributes was the largest line at 65% of revenue.
Operating costs exceeded revenue by $1.6M, an operating margin of -3.8%. Total costs grew 20% against revenue growth of 57%. The fastest-growing cost line was Other operating costs (+28%). Net earnings were $2.5M.
Operating cash flow was $337K (down 53% year over year), 14% of net earnings. Non-cash charges added back $8.3M of depreciation and amortization. Working capital and other items used $10.5M. Capital expenditures of $41.4M exceeded it, leaving free cash flow of −$41.1M.
Questions
What was Montauk Renewables' revenue in the fourth quarter 2025?
Montauk Renewables (MNTK) reported revenue of $43.4M for the fourth quarter 2025 (Q4 2025), +57% from a year earlier and -4% from the quarter before.
Was Montauk Renewables profitable in the fourth quarter 2025?
Operating loss was $1.6M (-3.8% of revenue) and net earnings $2.5M.
Source: Montauk Renewables 10-K on SEC EDGAR.