NYSE:ATO
Atmos Energy Corp.
Atmos Energy Corp.'s revenue grew 12.9% in fiscal 2025 to $4.7B while operating margin rose to 33.2%, its highest in 10 years. Free cash flow was −$1.5B, −32.2% of revenue, and the diluted share count rose 5.2%.Summary generated from Atmos Energy Corp.'s SEC filings. Latest annual report filed Nov 14, 2025.
Key statistics
Fiscal 2025 from SEC filings. MethodologyRevenue (FY25)$4.7B
Revenue growth+12.9%
Revenue, 5-yr CAGR+10.8%
Gross marginn/a
Operating margin33.2%
Net margin25.5%
ROIC6.0%
Return on equity9.3%
Debt / equity0.66
Free cash flow−$1.5B
FCF margin−32.2%
Share count change+5.2%
Financials
| Item | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Revenue | 3,407 | 4,202 | 4,275 | 4,165 | 4,703 |
| Operating income | 905 | 921 | 1,067 | 1,355 | 1,560 |
| Net income | 666 | 774 | 886 | 1,043 | 1,199 |
| Free cash flow | −3,054 | −1,467 | 654 | −1,203 | −1,512 |
Recent filings
- 8-KEntry into a material agreement
Oct 9, 2026 - 8-KOther events
Oct 9, 2026 - 4Insider transaction report
Oct 5, 2026 - 4Insider transaction report
Oct 5, 2026 - 8-KDirector or officer change
Aug 10, 2026 - 10-QQuarterly report for the period ended Jun 30, 2026
Aug 5, 2026 - 8-KResults of operations and financial condition
Aug 5, 2026 - 8-KEntry into a material agreement
Jun 18, 2026