# EDGAR Filing Document

**Accession Number:** 0000731802
**File Stem:** 0001193125-26-038101
**Filing Date:** 2026-2
**Character Count:** 2841
**Document Hash:** 8284cbcdc4e3d397dd20130d2954fbfa
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-038101.hdr.sgml**: 20260205

**ACCESSION NUMBER**: 0001193125-26-038101

**CONFORMED SUBMISSION TYPE**: 424B3

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260205

**DATE AS OF CHANGE**: 20260204

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ATMOS ENERGY CORP
- **CENTRAL INDEX KEY:** 0000731802
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS DISTRIBUTION [4924]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 751743247
- **STATE OF INCORPORATION:** TX
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** 424B3
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-283563
- **FILM NUMBER:** 26600076

**BUSINESS ADDRESS:**
- **STREET 1:** 1800 THREE LINCOLN CTR
- **STREET 2:** 5430 LBJ FREEWAY
- **CITY:** DALLAS
- **STATE:** TX
- **ZIP:** 75240
- **BUSINESS PHONE:** 9729349227

**MAIL ADDRESS:**
- **STREET 1:** 1800 THREE LINCOLN CTR
- **STREET 2:** 5430 LBJ FREEWAY
- **CITY:** DALLAS
- **STATE:** TX
- **ZIP:** 75240

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ENERGAS CO
- **DATE OF NAME CHANGE:** 19881024

**Filed Pursuant to Rule 424(b)(3)** 

**Registration Statement No. 333-283563** 

SUPPLEMENT NO. 1 dated February 4, 2026 to the

PROSPECTUS SUPPLEMENT dated December 3, 2024 to the

PROSPECTUS dated December 3, 2024

![LOGO](g63128g0205045014056.jpg)

## Atmos Energy Corporation
**Common stock** 

**Having an Aggregate Offering Price of up to $1,700,000,000**

The third sentence of the fourth paragraph on the cover page of the Prospectus Supplement is replaced in its entirety with the following:

"In connection with each forward sale agreement, the relevant forward seller will receive, reflected in a reduced initial forward sale price payable by the relevant forward purchaser under its forward sale agreement, a commission at a mutually agreed rate that will not exceed 2.50% of the volume weighted average of the sales prices of all borrowed shares of our common stock sold during the applicable period by it as a forward seller."

The first sentence of the third paragraph under the heading "Plan of Distribution (Conflicts of Interest)—Sales Through Forward Sellers" on page S-18 is replaced in its entirety with the following:

"In connection with each forward sale agreement, we will pay the relevant forward seller, in the form of a reduced initial forward sale price payable by the relevant forward purchaser under the related forward sale agreement, commissions at a mutually agreed rate that will not exceed 2.50% of the volume weighted average of the sales prices of all borrowed shares of common stock sold during the applicable forward hedge selling period by it as a forward seller."

Except as expressly set forth herein, no other changes to the Prospectus Supplement are being made by this Supplement.