Atmos Energy ATO SEC Filings

NYSE ATO
$167.04 +2.30 (+1.40%)
As of: Oct 20, 2026 · 3:59 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Atmos Energy Corp (ATO) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
18-KCurrent Report0001193125-26-419084Oct 9, 2026 4:05 PM
28-KCurrent Report0001193125-26-418579Oct 9, 2026 9:10 AM
33Insider Transaction0000731802-26-000122Oct 8, 2026 8:19 PM
4424B2Prospectus0001193125-26-417914Oct 8, 2026 4:05 PM
5FWPOthers0001193125-26-415813Oct 6, 2026 5:18 PM
6424B5Prospectus0001193125-26-414999Oct 6, 2026 8:40 AM
74Insider Transaction0000731802-26-000120Oct 5, 2026 8:19 PM
84Insider Transaction0000731802-26-000118Oct 5, 2026 8:17 PM
94Insider Transaction0000731802-26-000115Sep 17, 2026 7:52 PM
104Insider Transaction0000731802-26-000113Sep 2, 2026 7:33 PM
113Insider Transaction0000731802-26-000111Sep 1, 2026 6:33 PM
12SCHEDULE 13G/AOthers0000902219-26-000262Aug 13, 2026 4:08 PM
134Insider Transaction0000731802-26-000104Aug 12, 2026 2:54 PM
148-KCurrent Report0001193125-26-341096Aug 10, 2026 6:15 AM
1510-QQuarterly & Annual Report0000731802-26-000102Aug 5, 2026 8:54 PM
168-KCurrent Report0000731802-26-000100Aug 5, 2026 8:47 PM
17SCHEDULE 13GBeneficial Ownership Report0002012383-26-002267Jul 27, 2026 8:25 PM
184Insider Transaction0000731802-26-000096Jul 2, 2026 8:54 PM
194Insider Transaction0000731802-26-000094Jul 2, 2026 8:51 PM
2011-KOthers0000731802-26-000092Jun 25, 2026 7:11 PM
218-KCurrent Report0001193125-26-276088Jun 18, 2026 9:11 PM
228-KCurrent Report0001193125-26-275070Jun 18, 2026 1:00 PM
23424B2Prospectus0001193125-26-274201Jun 17, 2026 8:22 PM
24FWPOthers0001193125-26-271412Jun 16, 2026 10:34 PM
25424B5Prospectus0001193125-26-270353Jun 15, 2026 12:43 PM
26SCHEDULE 13G/AOthers0001562230-26-000084May 14, 2026 12:52 PM-
2710-QQuarterly & Annual Report0000731802-26-000089May 6, 2026 9:12 PM
2810-QQuarterly & Annual Report0000731802-26-000089May 6, 2026 9:12 PM
2910-QQuarterly & Annual Report0000731802-26-000089May 6, 2026 9:12 PM
308-KCurrent Report0000731802-26-000086May 6, 2026 8:58 PM
318-KCurrent Report0000731802-26-000086May 6, 2026 8:58 PM
328-KCurrent Report0000731802-26-000086May 6, 2026 8:58 PM
334Insider Transaction0000731802-26-000081May 4, 2026 8:57 PM
344Insider Transaction0000731802-26-000081May 4, 2026 8:57 PM
354Insider Transaction0000731802-26-000081May 4, 2026 8:57 PM
364Insider Transaction0000731802-26-000079May 4, 2026 8:55 PM
374Insider Transaction0000731802-26-000079May 4, 2026 8:55 PM
384Insider Transaction0000731802-26-000079May 4, 2026 8:55 PM
394Insider Transaction0000731802-26-000077May 4, 2026 8:54 PM
404Insider Transaction0000731802-26-000077May 4, 2026 8:54 PM
414Insider Transaction0000731802-26-000077May 4, 2026 8:54 PM
424Insider Transaction0000731802-26-000075May 4, 2026 8:52 PM
434Insider Transaction0000731802-26-000075May 4, 2026 8:52 PM
444Insider Transaction0000731802-26-000075May 4, 2026 8:52 PM
454Insider Transaction0000731802-26-000073May 4, 2026 8:50 PM
464Insider Transaction0000731802-26-000073May 4, 2026 8:50 PM
474Insider Transaction0000731802-26-000073May 4, 2026 8:50 PM
484Insider Transaction0000731802-26-000071May 4, 2026 8:47 PM
494Insider Transaction0000731802-26-000071May 4, 2026 8:47 PM
504Insider Transaction0000731802-26-000071May 4, 2026 8:47 PM
...

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