Company: ATO
Filing Date: 2025-12-09
Form Type: PRE 14A
Source: 0000731802-25-000061
Chunk: 72

Company: ATMOS ENERGY CORP
Filing Date: 2025-12-09
Form: PRE 14A
Chunk 72
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 the Availability of Proxy Materials (“Meeting Notice”) in lieu of a paper copy of our proxy materials. The Meeting Notice contains instructions to:

• Electronically access our proxy statement and our 2025 Annual Report to Shareholders and Form 10-K;

• Vote via the internet, by telephone, or by mail; and

• Receive a paper copy of our proxy materials by mail, if desired.

#### How do I access the webcast?
Access to the webcast will open approximately fifteen minutes prior to the start of the annual meeting to allow time for you to log in and test your computer audio system. We encourage you to access the meeting prior to the start time.

To attend and participate in the annual meeting, log in at www.virtualshareholdermeeting.com/ATO2026 . You will need your unique control number included on your proxy card (printed in the box and marked by the arrow) or on the instructions that accompanied your proxy materials.

Technicians will be available to assist you with any technical difficulties you may experience when trying to access the virtual meeting. If you experience any such difficulties, please call the support number posted on the virtual shareholder meeting login page at www.virtualshareholdermeeting.com/ATO2026 .

#### How can we ask questions?
If you have a question pertaining to the business of the Annual Meeting, you must submit it in advance of the Annual Meeting by visiting www.virtualshareholdermeeting.com/ATO2026 . Questions may be submitted until 6:00 p.m., Eastern Time, on February 1, 2026. You should have your proxy card or voting instruction form in hand when you access the website and follow the instructions. Each shareholder will be limited to no more than one question. Questions pertinent to the business of the Annual Meeting will be read aloud and answered, subject to time constraints, after the end of the business portion of the Annual Meeting.

#### Are there any other voting matters?
Proxy Information. On or about December 19, 2025, we began distributing to each shareholder entitled to vote at the annual meeting either (i) the Meeting Notice or (ii) this proxy statement, a proxy card, and our 2025 Annual Report. Shares represented by a properly executed and timely received proxy will be voted in accordance with instructions provided by the shareholder. If a properly executed and timely received proxy contains no specific voting instructions, the shares represented by any such proxy will be voted in accordance with the recommendations of the Board. Proxies are solicited by the Board.

Shareholders Entitled to