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 |
|---|---|---|---|
| 4 | Insider transaction | Nov 4, 2026 | Nov 3, 2026 |
| 4 | Insider transaction | Nov 4, 2026 | Nov 3, 2026 |
| 4 | Insider transaction | Nov 4, 2026 | Nov 3, 2026 |
| 4 | Insider transaction | Nov 4, 2026 | Nov 3, 2026 |
| 4 | Insider transaction | Nov 4, 2026 | Nov 3, 2026 |
| 4 | Insider transaction | Nov 4, 2026 | Nov 3, 2026 |
| 4 | Insider transaction | Nov 4, 2026 | Nov 3, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 5, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 5, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Sep 17, 2026 | Sep 15, 2026 |
| 4 | Insider transaction | Sep 2, 2026 | Sep 1, 2026 |
| 3 | Initial insider ownership | Sep 1, 2026 | Sep 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2026 | — |
| 4 | Insider transaction | Aug 12, 2026 | Aug 11, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 27, 2026 | — |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jul 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2026 | — |
| 4 | Insider transaction | May 4, 2026 | May 2, 2026 |
| 4 | Insider transaction | May 4, 2026 | May 2, 2026 |
| 4 | Insider transaction | May 4, 2026 | May 2, 2026 |
| 4 | Insider transaction | May 4, 2026 | May 2, 2026 |
| 4 | Insider transaction | May 4, 2026 | May 2, 2026 |
| 4 | Insider transaction | May 4, 2026 | May 2, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 28, 2026 | — |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 3 | Initial insider ownership | Feb 5, 2026 | Feb 4, 2026 |
| 3 | Initial insider ownership | Feb 5, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 5, 2026 | Feb 4, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 4, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 12, 2025 | Dec 10, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Dec 4, 2025 | — |
| 4 | Insider transaction | Dec 4, 2025 | Dec 3, 2025 |
| 144 | Notice of proposed sale | Dec 3, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 12, 2025 | — |
| 4 | Insider transaction | Nov 5, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Nov 5, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Nov 5, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Nov 5, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Nov 5, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Nov 5, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| 4 | Insider transaction | Oct 2, 2025 | Oct 1, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 4 | Insider transaction | Jul 2, 2025 | Jul 1, 2025 |
| 4 | Insider transaction | May 15, 2025 | May 14, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2025 | — |
| 144 | Notice of proposed sale | May 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 13, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 12, 2025 | — |
| 4 | Insider transaction | May 5, 2025 | May 2, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 2, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 2, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 2, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 2, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 2, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Apr 1, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| 4 | Insider transaction | Mar 11, 2025 | Mar 7, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| 4 | Insider transaction | Feb 6, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 5, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 5, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 5, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 5, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 5, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Feb 5, 2025 | Feb 4, 2025 |
| 4 | Insider transaction | Jan 16, 2025 | Jan 15, 2025 |
| 3 | Initial insider ownership | Jan 8, 2025 | Jan 1, 2025 |
| 4 | Insider transaction | Jan 3, 2025 | Jan 2, 2025 |
| 144 | Notice of proposed sale | Dec 10, 2024 | — |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| SC 13G | Ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Nov 12, 2024 | Nov 11, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 8, 2024 | — |
| 4 | Insider transaction | Nov 7, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 7, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 7, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 7, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 7, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 7, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Nov 7, 2024 | Nov 5, 2024 |
| 3/A | Primary document | Oct 8, 2024 | Sep 10, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Oct 1, 2024 |
| 3 | Initial insider ownership | Sep 25, 2024 | Sep 18, 2024 |
| 3/A | Primary document | Sep 23, 2024 | Sep 10, 2024 |
| 3 | Initial insider ownership | Sep 17, 2024 | Sep 10, 2024 |
| 3 | Initial insider ownership | Sep 17, 2024 | Sep 10, 2024 |
| 4 | Insider transaction | May 16, 2024 | May 16, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 7, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 7, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 7, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 7, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 7, 2024 |
| 4 | Insider transaction | May 9, 2024 | May 7, 2024 |
| 4 | Insider transaction | May 6, 2024 | May 3, 2024 |
| 4 | Insider transaction | May 6, 2024 | May 3, 2024 |
| 4 | Insider transaction | May 6, 2024 | May 3, 2024 |
| 4 | Insider transaction | May 6, 2024 | May 3, 2024 |
| 4 | Insider transaction | May 6, 2024 | May 3, 2024 |
| 4 | Insider transaction | May 6, 2024 | May 3, 2024 |
| 4 | Insider transaction | Mar 28, 2024 | Mar 27, 2024 |
| 144 | Notice of proposed sale | Mar 27, 2024 | — |
| 4 | Insider transaction | Mar 12, 2024 | Mar 8, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 8, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 8, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 8, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 8, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 8, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 8, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 8, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 8, 2024 |
| 4 | Insider transaction | Mar 12, 2024 | Mar 8, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 25, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 25, 2024 | — |
| 4 | Insider transaction | Nov 17, 2023 | Nov 17, 2023 |
| 144 | Notice of proposed sale | Nov 17, 2023 | — |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 9, 2023 | Nov 8, 2023 |
| 4 | Insider transaction | Nov 8, 2023 | Nov 6, 2023 |
| 144 | Notice of proposed sale | Nov 6, 2023 | — |
| 4 | Insider transaction | Aug 8, 2023 | Aug 7, 2023 |
| 144 | Notice of proposed sale | Aug 7, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 8, 2023 | — |
| 4 | Insider transaction | May 9, 2023 | May 5, 2023 |
| 4 | Insider transaction | May 9, 2023 | May 5, 2023 |
| 4 | Insider transaction | May 9, 2023 | May 5, 2023 |
| 4 | Insider transaction | May 9, 2023 | May 5, 2023 |
| 4 | Insider transaction | May 9, 2023 | May 5, 2023 |
| 4 | Insider transaction | May 9, 2023 | May 5, 2023 |
| 4 | Insider transaction | May 9, 2023 | May 5, 2023 |
| 4 | Insider transaction | May 5, 2023 | May 5, 2023 |
| 4 | Insider transaction | May 4, 2023 | May 3, 2023 |
| 4 | Insider transaction | May 4, 2023 | May 3, 2023 |
| 4 | Insider transaction | May 4, 2023 | May 3, 2023 |
| 4 | Insider transaction | May 4, 2023 | May 3, 2023 |
| 4 | Insider transaction | May 4, 2023 | May 3, 2023 |
| 4 | Insider transaction | May 4, 2023 | May 3, 2023 |
| 4 | Insider transaction | May 3, 2023 | May 1, 2023 |
| 144 | Notice of proposed sale | May 1, 2023 | — |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 10, 2023 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2023 | — |
| 4 | Insider transaction | Feb 8, 2023 | Feb 6, 2023 |
| SC 13G | Ownership over 5% (passive) | Feb 6, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Jan 25, 2023 | — |
Showing 200 filings, the most recent 200. 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.