ATMOS ENERGY CORP (ATO) Form 10-K Annual Reports
ATMOS ENERGY CORP (ATO) is a publicly traded company on the NYSE, categorized under SIC 4924 (Natural Gas Distribution). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.
Ticker: ATO
CIK: 731802
Exchange: NYSE
SIC 4924: Natural Gas Distribution
Fiscal Year End: 09/30
State: TX
Independent PCAOB Auditor
Explore PCAOB Audit Intelligence →
Audit Firm
Whitley Penn LLP
Auditor SinceSince 12/31/2025 12:00:00 AM
Lead Engagement PartnerJustin Roberts
Audit LocationDallas, Texas, United States
Latest SEC EDGAR Filings
Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions| Form | Filing Date | Reporting Period | Description | Accession Number | Actions |
|---|---|---|---|---|---|
| 8-K | 2026-10-09 | 2026-10-09 | 8-K | 0001193125-26-419084 | View SEC Doc Filr Page |
| 8-K | 2026-10-09 | 2026-10-06 | 8-K | 0001193125-26-418579 | View SEC Doc Filr Page |
| 424B2 | 2026-10-08 | — | 424B2 | 0001193125-26-417914 | View SEC Doc Filr Page |
| 3 | 2026-10-08 | 2026-10-01 | PRIMARY DOCUMENT | 0000731802-26-000122 | View SEC Doc Filr Page |
| FWP | 2026-10-06 | — | FWP | 0001193125-26-415813 | View SEC Doc Filr Page |
| 424B5 | 2026-10-06 | — | 424B5 | 0001193125-26-414999 | View SEC Doc Filr Page |
| 4 | 2026-10-05 | 2026-10-01 | PRIMARY DOCUMENT | 0000731802-26-000120 | View SEC Doc Filr Page |
| 4 | 2026-10-05 | 2026-10-01 | PRIMARY DOCUMENT | 0000731802-26-000118 | View SEC Doc Filr Page |
| 4 | 2026-09-17 | 2026-09-15 | PRIMARY DOCUMENT | 0000731802-26-000115 | View SEC Doc Filr Page |
| 4 | 2026-09-02 | 2026-09-01 | PRIMARY DOCUMENT | 0000731802-26-000113 | View SEC Doc Filr Page |
| 3 | 2026-09-01 | 2026-09-01 | PRIMARY DOCUMENT | 0000731802-26-000111 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-08-13 | — | SCHEDULE 13G/A Filing | 0000902219-26-000262 | View SEC Doc Filr Page |
| 4 | 2026-08-12 | 2026-08-11 | PRIMARY DOCUMENT | 0000731802-26-000104 | View SEC Doc Filr Page |
| 8-K | 2026-08-10 | 2026-08-04 | 8-K | 0001193125-26-341096 | View SEC Doc Filr Page |
| 10-Q | 2026-08-05 | 2026-06-30 | 10-Q | 0000731802-26-000102 | View SEC Doc Filr Page |
| 8-K | 2026-08-05 | 2026-08-05 | 8-K | 0000731802-26-000100 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-07-27 | — | SCHEDULE 13G/A Filing | 0002012383-26-002267 | View SEC Doc Filr Page |
| 4 | 2026-07-02 | 2026-07-01 | PRIMARY DOCUMENT | 0000731802-26-000096 | View SEC Doc Filr Page |
| 4 | 2026-07-02 | 2026-07-01 | PRIMARY DOCUMENT | 0000731802-26-000094 | View SEC Doc Filr Page |
| 11-K | 2026-06-25 | 2025-12-31 | 11-K | 0000731802-26-000092 | View SEC Doc Filr Page |
| 8-K | 2026-06-18 | 2026-06-18 | 8-K | 0001193125-26-276088 | View SEC Doc Filr Page |
| 8-K | 2026-06-18 | 2026-06-15 | 8-K | 0001193125-26-275070 | View SEC Doc Filr Page |
| 424B2 | 2026-06-17 | — | 424B2 | 0001193125-26-274201 | View SEC Doc Filr Page |
| FWP | 2026-06-16 | — | FWP | 0001193125-26-271412 | View SEC Doc Filr Page |
| 424B5 | 2026-06-15 | — | 424B5 | 0001193125-26-270353 | View SEC Doc Filr Page |