Company filings profile · CIK 0000731802
ATMOS ENERGY CORP — SEC filings & insider activity.
Real, source-linked SEC EDGAR activity for ATMOS ENERGY CORP (ATO): 20 filings in the last 90 days vs 28 in the prior 90 (filing-velocity cooling ↓ · 0.71×). Latest material 8-K events, insider Form-4 transactions, and periodic reports — monitored for change.
✔ Verified against the public SEC EDGAR filing record as of Jun 21, 2026. Source-linked, daily-refreshed.
Material 8-K events — ATMOS ENERGY CORP
8-K disclosures decoded by item code (the material events: agreements, results, control/management changes, impairments, restatements).
| Filed | Event | |
|---|---|---|
| Jun 18, 2026 | Entry into a Material Agreement; Financial Statements and Exhibits | ↗ |
| Jun 18, 2026 | Other Events; Financial Statements and Exhibits | ↗ |
| May 6, 2026 | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Mar 30, 2026 | Entry into a Material Agreement; Material Direct Financial Obligation | ↗ |
| Feb 10, 2026 | Amendments to Bylaws/Charter; Item 5.07; Financial Statements and Exhibits | ↗ |
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Insider transactions (Form 4 / 3 / 5)
Recent filings
| Filed | Form | Detail | |
|---|---|---|---|
| Jun 18, 2026 | 8-K | Entry into a Material Agreement; Financial Statements and Exhibits | ↗ |
| Jun 18, 2026 | 8-K | Other Events; Financial Statements and Exhibits | ↗ |
| Jun 17, 2026 | 424B2 | 424B2 | ↗ |
| Jun 16, 2026 | FWP | FWP | ↗ |
| Jun 15, 2026 | 424B5 | 424B5 | ↗ |
| May 14, 2026 | SCHEDULE 13G/A | ↗ | |
| May 6, 2026 | 10-Q | 10-Q | ↗ |
| May 6, 2026 | 8-K | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| May 4, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| May 4, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| May 4, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| May 4, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| May 4, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| May 4, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Apr 29, 2026 | SCHEDULE 13G | ↗ | |
| Apr 28, 2026 | SCHEDULE 13G | ↗ | |
| Apr 2, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Apr 2, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Mar 30, 2026 | 8-K | Entry into a Material Agreement; Material Direct Financial Obligation | ↗ |
| Mar 26, 2026 | SCHEDULE 13G/A | ↗ | |
| Mar 10, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Mar 10, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Mar 10, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Mar 10, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Mar 10, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Mar 10, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Mar 10, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Mar 10, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Mar 10, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Mar 10, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Mar 10, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Feb 10, 2026 | 8-K | Amendments to Bylaws/Charter; Item 5.07; Financial Statements and Exhibits | ↗ |
| Feb 5, 2026 | 3 | PRIMARY DOCUMENT | ↗ |
| Feb 5, 2026 | 3 | PRIMARY DOCUMENT | ↗ |
| Feb 5, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Feb 5, 2026 | 424B3 | 424B3 | ↗ |
| Feb 4, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Feb 4, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Feb 4, 2026 | 4 | PRIMARY DOCUMENT | ↗ |
| Feb 4, 2026 | 4 | PRIMARY DOCUMENT | ↗ |