Atmos Energy (ATO) 4: HARTSFIELD KAREN E bought 2,815 shares of Common Stock at $… (May 4, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-02 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: ATMOS ENERGY CORP (ATO) CIK: 0000731802 --- Reporting Owner --- Name: HARTSFIELD KAREN E CIK: 0001713954 Role: Officer (Senior Advisor) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-05-02 | Code: M (Exercise of derivative) Shares: +2,815 | Price: $189.74 Total Value: $534,118.10 Shares Owned After: 34,027.7159 | Ownership: D (Direct) [Transaction #2] Security: Common Stock Date: 2026-05-02 | Code: F (Payment of exercise/tax) Shares: -1,042 | Price: $189.74 Total Value: $197,709.08 Shares Owned After: 32,985.7159 | Ownership: D (Direct) Footnotes: [F1] Shares withheld pursuant to a tax withholding obligation under the 1998 Long-Term Incentive Plan (the "Plan".) --- Derivative Transactions --- [Transaction #1] Security: Restricted Stock Unit Date: 2026-05-02 | Code: M (Exercise of derivative) Shares: -2,815 | Price: $0.00 Shares Owned After: 4,195 | Ownership: D (Direct) Footnotes: [F3] Each restricted share unit represents a contingent right to receive one share of the Company's common stock. [F4] The restricted share units vested and were delivered to the reporting person three years from date of grant pursuant to the Plan. [F4] The restricted share units vested and were delivered to the reporting person three years from date of grant pursuant to the Plan. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) Footnotes: [F2] To update end of period holdings as of May 1, 2026 under the Atmos Energy Corporation Retirement Savings Plan and Trust. --- Footnotes (Complete Index) --- F1: Shares withheld pursuant to a tax withholding obligation under the 1998 Long-Term Incentive Plan (the "Plan".) F2: To update end of period holdings as of May 1, 2026 under the Atmos Energy Corporation Retirement Savings Plan and Trust. F3: Each restricted share unit represents a contingent right to receive one share of the Company's common stock. F4: The restricted share units vested and were delivered to the reporting person three years from date of grant pursuant to the Plan. --- Signature --- /s/ /s/Suzanne Johnson by POA (2026-05-04)