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ATOAtmos Energy

Utilities · Gas Utilities · NYSE
ATO quote by TradingView
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Filings with the SEC since Feb 3, 2015

1,008 filings, 11 in the last 30 days

SEC filing index
Latest annual reportOpen ↗
Nov 14, 2025
10-K, period to Sep 30, 2025
Latest quarterly reportOpen ↗
Aug 5, 2026
10-Q, period to Jun 30, 2026
Latest current reportOpen ↗
Nov 4, 2026
8-K: Director or officer change, Regulation FD disclosure
Filed in the last 30 days
11
of 1,008 in all
Timeline

Every filing on one line

1 yr2 yr3 yr
Annual report (10-K)Quarterly report (10-Q)Current report (8-K)Auditor changeCEO, CFO, COO or CAO changeRestatementLate filing noticeInsider purchaseCluster buy (3+ insiders)SEC comment letterShare offering (S-3, 424B)
All 36 events

From the SEC filing index. Insider purchases go back 180 days (the Form 4s downloaded).

Every filing

Newest first, by kind

Each form links to sec.gov
All 1008 Annual & quarterly 47Current reports (8-K) 142Insiders 618Proxy & votes 24Big owners (13D/13G) 53Shares & debt offered 78SEC letters 23Other 23
FiledFormWhat it isPeriod
Nov 9, 20264/A Insider trade (amended)Nov 3, 2026 all files
Nov 9, 20263/A New insider (amended)Oct 1, 2026 all files
Nov 4, 20264 Insider tradeNov 3, 2026 all files
Nov 4, 20264 Insider tradeNov 3, 2026 all files
Nov 4, 20264 Insider tradeNov 3, 2026 all files
Nov 4, 20264 Insider tradeNov 3, 2026 all files
Nov 4, 20264 Insider tradeNov 3, 2026 all files
Nov 4, 20264 Insider tradeNov 3, 2026 all files
Nov 4, 20268-K Director or officer change, Regulation FD disclosureNov 3, 2026 all files
Nov 4, 20268-K Quarterly resultsNov 4, 2026 all files
Nov 4, 20264 Insider tradeNov 3, 2026 all files
Oct 9, 20268-K Material agreement signedOct 9, 2026 all files
Oct 9, 20268-K Other eventsOct 6, 2026 all files
Oct 8, 2026424B2 Prospectus (notes) all files
Oct 8, 20263 New insiderOct 1, 2026 all files
Oct 6, 2026FWP Offering terms all files
Oct 6, 2026424B5 Prospectus all files
Oct 5, 20264 Insider tradeOct 1, 2026 all files
Oct 5, 20264 Insider tradeOct 1, 2026 all files
Sep 17, 20264 Insider tradeSep 15, 2026 all files
Sep 2, 20264 Insider tradeSep 1, 2026 all files
Sep 1, 20263 New insiderSep 1, 2026 all files
Aug 13, 2026SCHEDULE 13G/A 5%+ owner (passive), amended all files
Aug 12, 20264 Insider tradeAug 11, 2026 all files
Aug 10, 20268-K Director or officer change, Regulation FD disclosureAug 4, 2026 all files
Aug 5, 202610-Q Quarterly reportJun 30, 2026 all files · tables
Aug 5, 20268-K Quarterly resultsAug 5, 2026 all files
Jul 2, 20264 Insider tradeJul 1, 2026 all files
Jul 2, 20264 Insider tradeJul 1, 2026 all files
Jun 25, 202611-K Employee plan annual reportDec 31, 2025 all files
Jun 18, 20268-K Material agreement signedJun 18, 2026 all files
Jun 18, 20268-K Other eventsJun 15, 2026 all files
Jun 17, 2026424B2 Prospectus (notes) all files
Jun 16, 2026FWP Offering terms all files
Jun 15, 2026424B5 Prospectus all files
May 14, 2026SCHEDULE 13G/A 5%+ owner (passive), amended all files
May 6, 202610-Q Quarterly reportMar 31, 2026 all files · tables
May 6, 20268-K Quarterly resultsMay 6, 2026 all files
May 4, 20264 Insider tradeMay 2, 2026 all files
May 4, 20264 Insider tradeMay 2, 2026 all files
May 4, 20264 Insider tradeMay 2, 2026 all files
May 4, 20264 Insider tradeMay 2, 2026 all files
May 4, 20264 Insider tradeMay 2, 2026 all files
May 4, 20264 Insider tradeMay 2, 2026 all files
Apr 29, 2026SCHEDULE 13G 5%+ owner (passive) all files
Apr 28, 2026SCHEDULE 13G 5%+ owner (passive) all files
Apr 2, 20264 Insider tradeApr 1, 2026 all files
Apr 2, 20264 Insider tradeApr 1, 2026 all files
Mar 30, 20268-K Material agreement signed, New debt or obligationMar 27, 2026 all files
Mar 26, 2026SCHEDULE 13G/A 5%+ owner (passive), amended all files
Mar 10, 20264 Insider tradeMar 6, 2026 all files
Mar 10, 20264 Insider tradeMar 6, 2026 all files
Mar 10, 20264 Insider tradeMar 6, 2026 all files
Mar 10, 20264 Insider tradeMar 6, 2026 all files
Mar 10, 20264 Insider tradeMar 6, 2026 all files
Mar 10, 20264 Insider tradeMar 6, 2026 all files
Mar 10, 20264 Insider tradeMar 6, 2026 all files
Mar 10, 20264 Insider tradeMar 6, 2026 all files
Mar 10, 20264 Insider tradeMar 6, 2026 all files
Mar 10, 20264 Insider tradeMar 6, 2026 all files
Mar 10, 20264 Insider tradeMar 6, 2026 all files
Feb 10, 20268-K Bylaws or fiscal year changed, Shareholder vote resultsFeb 4, 2026 all files
Feb 5, 2026424B3 all files
Feb 5, 20263 New insiderFeb 4, 2026 all files
Feb 5, 20263 New insiderFeb 4, 2026 all files
Feb 5, 20264 Insider tradeFeb 4, 2026 all files
Feb 4, 20264 Insider tradeFeb 3, 2026 all files
Feb 4, 20264 Insider tradeFeb 3, 2026 all files
Feb 4, 20264 Insider tradeFeb 3, 2026 all files
Feb 4, 20264 Insider tradeFeb 3, 2026 all files
Feb 4, 20264 Insider tradeFeb 3, 2026 all files
Feb 4, 20264 Insider tradeFeb 3, 2026 all files
Feb 4, 20264 Insider tradeFeb 3, 2026 all files
Feb 3, 202610-Q Quarterly reportDec 31, 2025 all files · tables
Feb 3, 20268-K Quarterly resultsFeb 3, 2026 all files
Jan 5, 20264 Insider tradeJan 2, 2026 all files
Jan 5, 20264 Insider tradeJan 2, 2026 all files
Jan 5, 20264 Insider tradeJan 2, 2026 all files
Dec 19, 2025ARS Annual report to shareholdersSep 30, 2025 all files
Dec 19, 2025DEFA14A Extra proxy material all files
Dec 19, 2025DEF 14A Proxy statementFeb 4, 2026 all files
Dec 18, 20254 Insider tradeDec 16, 2025 all files
Dec 12, 20254 Insider tradeDec 10, 2025 all files
Dec 9, 2025PRE 14A Feb 4, 2026 all files
Dec 4, 20254 Insider tradeDec 3, 2025 all files
Dec 3, 2025144 Notice of planned insider sale all files
Nov 14, 202510-K Annual reportSep 30, 2025 all files · tables
Nov 12, 2025SCHEDULE 13G/A 5%+ owner (passive), amended all files
Nov 5, 20258-K Quarterly resultsNov 5, 2025 all files
Nov 5, 20254 Insider tradeNov 4, 2025 all files
Nov 5, 20254 Insider tradeNov 4, 2025 all files
Nov 5, 20254 Insider tradeNov 4, 2025 all files
Nov 5, 20254 Insider tradeNov 4, 2025 all files
Nov 5, 20254 Insider tradeNov 4, 2025 all files
Nov 5, 20254 Insider tradeNov 4, 2025 all files
Oct 2, 20254 Insider tradeOct 1, 2025 all files
Oct 2, 20254 Insider tradeOct 1, 2025 all files
Oct 1, 20258-K Material agreement signedOct 1, 2025 all files
Oct 1, 20258-K Other eventsSep 18, 2025 all files
Sep 22, 2025424B2 Prospectus (notes) all files
Show the other 75 filings on this page

Press releases with quarterly results are attached to the 8-Ks marked "Quarterly results"; read them on Earnings releases.

Next Earnings releases →