Atmos Energy Corp SEC filings ATO
Atmos Energy Corp has 1,011 filings in SEC EDGAR's recent list, going back to Feb 3, 2015. Its latest annual report, Form ARS, was filed on Dec 19, 2025 for the period ended Sep 30, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 5, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (officer or director change, regulation fd disclosure). The company's fiscal year ends on September 30.
| Form | Description | Filed | Period |
|---|---|---|---|
| DEFA14A | Additional proxy material | Dec 19, 2025 | — |
| DEF 14A | Proxy statement | Dec 19, 2025 | Feb 4, 2026 |
| PRE 14A | Preliminary proxy statement | Dec 9, 2025 | Feb 4, 2026 |
| DEFA14A | Additional proxy material | Dec 20, 2024 | — |
| DEF 14A | Proxy statement | Dec 20, 2024 | Feb 5, 2025 |
| DEFA14A | Additional proxy material | Dec 29, 2023 | — |
| DEF 14A | Proxy statement | Dec 29, 2023 | Feb 7, 2024 |
| DEFA14A | Additional proxy material | Dec 16, 2022 | — |
| DEF 14A | Proxy statement | Dec 16, 2022 | Feb 8, 2023 |
| DEFA14A | Additional proxy material | Dec 17, 2021 | — |
| DEF 14A | Proxy statement | Dec 17, 2021 | Feb 9, 2022 |
| DEFA14A | Additional proxy material | Dec 18, 2020 | — |
| DEF 14A | Proxy statement | Dec 18, 2020 | Feb 3, 2021 |
| DEFA14A | Additional proxy material | Dec 20, 2019 | — |
| DEF 14A | Proxy statement | Dec 20, 2019 | Feb 5, 2020 |
| DEFA14A | Additional proxy material | Dec 21, 2018 | — |
| DEF 14A | Proxy statement | Dec 21, 2018 | Feb 6, 2019 |
| DEFA14A | Additional proxy material | Dec 22, 2017 | — |
| DEF 14A | Proxy statement | Dec 22, 2017 | Feb 7, 2018 |
| DEFA14A | Additional proxy material | Dec 23, 2016 | — |
| DEF 14A | Proxy statement | Dec 23, 2016 | Feb 8, 2017 |
| DEFA14A | Additional proxy material | Dec 21, 2015 | — |
| DEF 14A | Proxy statement | Dec 21, 2015 | Feb 3, 2016 |
Showing 23 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Natural Gas Distribution (SIC 4924)
- Listed as
- ATO (NYSE)
- Fiscal year ends
- September 30
- Incorporated in
- TX
- Headquarters
- Dallas, TX
- SEC filer status
- Large accelerated filer
- SEC CIK
- 731802
Other Natural Gas Distribution companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.