In fiscal 2025, which ended Dec 31, 2025, Montauk Renewables, Inc. generated $30.3 million of cash from operations, down 30.7% from the year before. It spent $116.5 million on capital expenditures. Free cash flow was negative, at -$86.2 million. The company returned $419,000 in share buybacks to shareholders.
USD in millions, except per-share amounts and ratios. The percent under a figure is the change from the year before.
| Line |
FY 2026
Jun 30, 2026
|
FY 2025
Dec 31, 2025
|
FY 2024
Dec 31, 2024
|
FY 2023
Dec 31, 2023
|
FY 2022
Dec 31, 2022
|
FY 2021
Dec 31, 2021
|
|---|---|---|---|---|---|---|
| Operating | ||||||
| Depreciation and amortization |
33
+29.0%
|
30
+27.5%
|
24
+11.1%
|
21
+2.2%
|
21
-9.5%
|
23
|
| Stock-based compensation |
2
-78.9%
|
4
-55.4%
|
10
+19.7%
|
8
-15.4%
|
10
-56.1%
|
22
|
| Operating cash flow |
43
-6.9%
|
30
-30.7%
|
44
+6.7%
|
41
-49.4%
|
81
+89.1%
|
43
|
| Investing | ||||||
| Capital expenditures |
127
+89.7%
|
117
+87.0%
|
62
-1.2%
|
63
+183.2%
|
22
+123.1%
|
10
|
| Investing cash flow |
-129
-88.8%
|
-120
-93.7%
|
-62
+1.4%
|
-63
-203.4%
|
-21
-6.8%
|
-19
|
| Financing | ||||||
| Debt issued |
240
|
105
|
—
|
0
-100.0%
|
—
|
80
|
| Debt repaid |
50
+400.0%
|
12
+50.0%
|
8
+0.0%
|
8
+0.0%
|
8
-88.0%
|
67
|
| Stock buybacks |
0
-96.3%
|
0
-76.5%
|
2
+1359.0%
|
0
-48.7%
|
0
+221.6%
|
11
|
| Financing cash flow |
74
+803.9%
|
68
+794.4%
|
-10
-5.5%
|
-9
-12.7%
|
-8
-195.7%
|
9
|
| Change in cash | ||||||
| Net change in cash |
-11
+16.6%
|
-22
+22.7%
|
-28
+10.0%
|
-31
-160.3%
|
52
+62.2%
|
32
|
| Free cash flow |
-83
-312.7%
|
-86
-365.3%
|
-19
+15.9%
|
-22
-137.5%
|
59
+78.7%
|
33
|
| Per share | ||||||
| Free cash flow per share |
-0.58
-310.0%
|
-0.60
-363.1%
|
-0.13
+16.1%
|
-0.16
-137.6%
|
0.41
+76.8%
|
0.23
|
| Shareholder returns | ||||||
| Returned to shareholders |
0
|
0
|
2
|
0
|
0
|
11
|
| Share of free cash flow |
—
|
—
|
—
|
—
|
0.40%
|
32.87%
|
| Ratios | ||||||
| Free cash flow margin |
-44.09%
|
-48.88%
|
-10.54%
|
-12.60%
|
27.55%
|
22.21%
|
| Capital expenditures to revenue |
67.06%
|
66.07%
|
35.46%
|
36.07%
|
10.44%
|
6.74%
|
| Stock-based compensation to revenue |
1.03%
|
2.52%
|
5.67%
|
4.76%
|
4.61%
|
15.13%
|
| Cash conversion |
5.48x
|
17.35x
|
4.50x
|
2.75x
|
2.30x
|
—
|
How these figures are calculated
Annual columns are full-year amounts from the annual report (Form 10-K, 20-F, or 40-F). If a company restates a year, the latest filed number is shown. USD in millions, except per-share amounts and ratios. Capital expenditures, debt repaid, dividends, and buybacks are positive amounts. Investing and financing cash flow keep the filing sign, so an outflow is negative. Free cash flow is operating cash flow minus capital expenditures. The first column is the trailing twelve months through the latest quarter. Returned to shareholders is dividends plus buybacks. Free cash flow margin, capital expenditures, and stock-based compensation are divided by revenue. Cash conversion is operating cash flow divided by net income. More on our methodology.
Company profile
- Industry
- Gas & Other Services Combined (SIC 4932)
- Listed as
- MNTK (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Pittsburgh, PA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1826600
Other Gas & Other Services Combined companies
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.