Atmos Energy Corporation

ATO·NYSE·$177.72Share Price as of 11/2·$30BMarket Cap as of 11/2

Financials

10-QQ3 ended 06/30/2608/05/26 10-QQ2 ended 03/31/2605/06/26 10-QQ1 ended 12/31/2502/03/26 10-KFY 202511/14/25 10-QQ3 ended 06/30/2508/06/25

Disclosures

8-KCurrent report10/09/26 8-KCurrent report10/09/26 8-KCurrent report08/10/26 8-KCurrent report08/05/26 8-KCurrent report06/18/26

Prospectuses and Registrations

424B2Prospectus for primary offering10/08/26 424B5Prospectus supplement10/06/26 FWPFree writing prospectus10/06/26 424B2Prospectus for primary offering06/17/26 FWPFree writing prospectus06/16/26

Proxies

DEF 14ADefinitive proxy12/19/25 DEFA14AAdditional proxy materials12/19/25 PRE 14APreliminary proxy12/09/25 DEF 14ADefinitive proxy12/20/24 DEFA14AAdditional proxy materials12/20/24

Ownership

Form 3Initial insider ownership10/08/26 Form 4Insider transaction10/05/26 Form 4Insider transaction10/05/26 Form 4Insider transaction09/17/26 Form 4Insider transaction09/02/26

Other

11-KEmployee stock purchase plan report06/25/26 ARSAnnual report to shareholders12/19/25 11-KEmployee stock purchase plan report06/26/25 UPLOADLetter from the SEC04/15/25 CORRESPCorrespondence with the SEC03/27/25