Atmos Energy Corporation (ATO)
NYSE: ATO · Natural Gas Distribution · Dallas, TX · filing with the SEC since 1994
Grade6.1
◀ Past 6.2● Present 6.3▶ Future 5.7
Filings
349 filings since 2017 beside 518 insider forms · Large accelerated filer · read from EDGAR on Nov 13, 2026Due nextLarge accelerated filer
10-K
Annual report for the fiscal year ending Sep 30, 2026Large accelerated filers have 60 days after the fiscal year ends.
by Nov 29, 2026
10-Q
Quarterly report for the quarter ending Dec 31, 2026Large accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end.
by Feb 9, 2027
A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. The proxy statement was last filed Dec 19, 2025.
Filings a yearinsider forms included
92100926882818179
2026 counts to Nov 13, 2026.
Officer or director change (8-K item 5.02): 5 times in the last 36 months, the newest Nov 4, 2026.SEC letters: 3 in the last 36 months, the newest Apr 15, 2025.
Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.
FiledFormWhat it is, in plain wordsPeriodAsk
Nov 4, 2026
8-K items 5.02, 7.01, 9.01
Officer or director change; Investor disclosure (Regulation FD) · Current report
Nov 3, 2026
Aug 10, 2026
8-K items 5.02, 7.01, 9.01
Officer or director change; Investor disclosure (Regulation FD) · Current report
Aug 4, 2026
Mar 30, 2026
8-K items 1.01, 2.03
Major agreement signed; New debt or obligation taken on · Current report
Mar 27, 2026
Feb 10, 2026
8-K items 5.03, 5.07, 9.01
Charter, bylaw or fiscal-year change; Shareholder vote · Current report
Feb 4, 2026
40 of 349 shown
Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.