ATO - Company ID 0000731802
ATMOS ENERGY CORP has filed 2,121 public company documents between 1994 and 2026. The most frequent type is insider trade (1,233 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Type | Filing | Filed | Period covered | Open |
|---|---|---|---|---|
| SCHEDULE 13G/A | SCHEDULE 13G/A | 1mo ago2026-05-14 | - | View filing |
| 10-Q | Quarterly report | 2mo ago2026-05-06 | 2026-03-31 | View filing |
| 8-K | Major company event | 2mo ago2026-05-06 | 2026-05-06 | View filing |
| 4 | Insider trade | 2mo ago2026-05-04 | 2026-05-02 | View filing |
| 4 | Insider trade | 2mo ago2026-05-04 | 2026-05-02 | View filing |
| 4 | Insider trade | 2mo ago2026-05-04 | 2026-05-02 | View filing |
| 4 | Insider trade | 2mo ago2026-05-04 | 2026-05-02 | View filing |
| 4 | Insider trade | 2mo ago2026-05-04 | 2026-05-02 | View filing |
| 4 | Insider trade | 2mo ago2026-05-04 | 2026-05-02 | View filing |
| SCHEDULE 13G | SCHEDULE 13G | 2mo ago2026-04-29 | - | View filing |
| SCHEDULE 13G | SCHEDULE 13G | 2mo ago2026-04-28 | - | View filing |
| 4 | Insider trade | 3mo ago2026-04-02 | 2026-04-01 | View filing |
| 4 | Insider trade | 3mo ago2026-04-02 | 2026-04-01 | View filing |
| 8-K | Major company event | 3mo ago2026-03-30 | 2026-03-27 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 3mo ago2026-03-26 | - | View filing |
| 4 | Insider trade | 4mo ago2026-03-10 | 2026-03-06 | View filing |
| 4 | Insider trade | 4mo ago2026-03-10 | 2026-03-06 | View filing |
| 4 | Insider trade | 4mo ago2026-03-10 | 2026-03-06 | View filing |
| 4 | Insider trade | 4mo ago2026-03-10 | 2026-03-06 | View filing |
| 4 | Insider trade | 4mo ago2026-03-10 | 2026-03-06 | View filing |
| 4 | Insider trade | 4mo ago2026-03-10 | 2026-03-06 | View filing |
| 4 | Insider trade | 4mo ago2026-03-10 | 2026-03-06 | View filing |
| 4 | Insider trade | 4mo ago2026-03-10 | 2026-03-06 | View filing |
| 4 | Insider trade | 4mo ago2026-03-10 | 2026-03-06 | View filing |
| 4 | Insider trade | 4mo ago2026-03-10 | 2026-03-06 | View filing |
| 4 | Insider trade | 4mo ago2026-03-10 | 2026-03-06 | View filing |
| 8-K | Major company event | 5mo ago2026-02-10 | 2026-02-04 | View filing |
| 424B3 | 424B3 | 5mo ago2026-02-05 | - | View filing |
| 3 | New insider ownership | 5mo ago2026-02-05 | 2026-02-04 | View filing |
| 3 | New insider ownership | 5mo ago2026-02-05 | 2026-02-04 | View filing |
| 4 | Insider trade | 5mo ago2026-02-05 | 2026-02-04 | View filing |
| 4 | Insider trade | 5mo ago2026-02-04 | 2026-02-03 | View filing |
| 4 | Insider trade | 5mo ago2026-02-04 | 2026-02-03 | View filing |
| 4 | Insider trade | 5mo ago2026-02-04 | 2026-02-03 | View filing |
| 4 | Insider trade | 5mo ago2026-02-04 | 2026-02-03 | View filing |
| 4 | Insider trade | 5mo ago2026-02-04 | 2026-02-03 | View filing |
| 4 | Insider trade | 5mo ago2026-02-04 | 2026-02-03 | View filing |
| 4 | Insider trade | 5mo ago2026-02-04 | 2026-02-03 | View filing |
| 10-Q | Quarterly report | 5mo ago2026-02-03 | 2025-12-31 | View filing |
| 8-K | Major company event | 5mo ago2026-02-03 | 2026-02-03 | View filing |
| 4 | Insider trade | 6mo ago2026-01-05 | 2026-01-02 | View filing |
| 4 | Insider trade | 6mo ago2026-01-05 | 2026-01-02 | View filing |
| 4 | Insider trade | 6mo ago2026-01-05 | 2026-01-02 | View filing |
| ARS | Annual report to shareholders | 6mo ago2025-12-19 | 2025-09-30 | View filing |
| DEFA14A | Proxy materials | 6mo ago2025-12-19 | - | View filing |
| DEF 14A | Proxy statement | 6mo ago2025-12-19 | 2026-02-04 | View filing |
| 4 | Insider trade | 6mo ago2025-12-18 | 2025-12-16 | View filing |
| 4 | Insider trade | 7mo ago2025-12-12 | 2025-12-10 | View filing |
| PRE 14A | PRE 14A | 7mo ago2025-12-09 | 2026-02-04 | View filing |
| SCHEDULE 13G/A | SCHEDULE 13G/A | 7mo ago2025-12-04 | - | View filing |