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 |
|---|---|---|---|
| 11-K | Employee savings plan report | Jun 25, 2026 | Dec 31, 2025 |
| 11-K | Employee savings plan report | Jun 26, 2025 | Dec 31, 2024 |
| UPLOAD | Letter from the SEC | Apr 15, 2025 | — |
| CORRESP | Letter to the SEC | Mar 27, 2025 | — |
| UPLOAD | Letter from the SEC | Mar 7, 2025 | — |
| 11-K | Employee savings plan report | Jun 26, 2024 | Dec 31, 2023 |
| 11-K | Employee savings plan report | Jun 23, 2023 | Dec 31, 2022 |
| EFFECT | Filing | Jun 8, 2023 | — |
| CORRESP | Letter to the SEC | Jun 5, 2023 | — |
| CORRESP | Letter to the SEC | Jun 5, 2023 | — |
| SF-1/A | Filing | Jun 5, 2023 | — |
| SF-1/A | Filing | May 30, 2023 | — |
| CORRESP | Letter to the SEC | May 26, 2023 | — |
| UPLOAD | Letter from the SEC | Mar 27, 2023 | — |
| SF-1 | Filing | Feb 28, 2023 | — |
| 11-K | Employee savings plan report | Jun 24, 2022 | Dec 31, 2021 |
| 11-K | Employee savings plan report | Jun 25, 2021 | Dec 31, 2020 |
| 11-K | Employee savings plan report | Jun 26, 2020 | Dec 31, 2019 |
| UPLOAD | Letter from the SEC | Jan 30, 2020 | — |
| CORRESP | Letter to the SEC | Jan 27, 2020 | — |
| UPLOAD | Letter from the SEC | Jan 21, 2020 | — |
| 11-K | Employee savings plan report | Jun 21, 2019 | Dec 31, 2018 |
| PX14A6G | Filing | Jan 16, 2019 | — |
| 11-K | Employee savings plan report | Jun 22, 2018 | Dec 31, 2017 |
| UPLOAD | Letter from the SEC | Mar 27, 2018 | — |
| CORRESP | Letter to the SEC | Mar 26, 2018 | — |
| UPLOAD | Letter from the SEC | Mar 19, 2018 | — |
| CORRESP | Letter to the SEC | Mar 13, 2018 | — |
| UPLOAD | Letter from the SEC | Mar 6, 2018 | — |
| 11-K | Employee savings plan report | Jun 22, 2017 | Dec 31, 2016 |
| UPLOAD | Letter from the SEC | May 25, 2017 | — |
| CORRESP | Letter to the SEC | May 23, 2017 | — |
| UPLOAD | Letter from the SEC | May 17, 2017 | — |
| CORRESP | Letter to the SEC | May 4, 2017 | — |
| UPLOAD | Letter from the SEC | May 2, 2017 | — |
| 11-K | Employee savings plan report | Jun 20, 2016 | Dec 31, 2015 |
| 11-K | Employee savings plan report | Jun 19, 2015 | Dec 31, 2014 |
| UPLOAD | Letter from the SEC | Feb 12, 2015 | — |
| CORRESP | Letter to the SEC | Feb 9, 2015 | — |
| UPLOAD | Letter from the SEC | Feb 3, 2015 | — |
Showing 40 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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
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.