Welcome to our dedicated page for Atmos Energy SEC filings (Ticker: ATO), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Atmos Energy Corporation (NYSE: ATO) SEC filings page provides access to the company’s official regulatory documents as filed with the U.S. Securities and Exchange Commission. As a fully regulated, natural gas-only distributor and S&P 500 utility headquartered in Dallas, Texas, Atmos Energy uses these filings to report on its financial condition, governance, financing activities, and executive compensation.
Key filings for Atmos Energy include annual reports on Form 10-K and quarterly reports on Form 10-Q, which present detailed information about its natural gas distribution, transmission, and storage operations, capital expenditures, regulatory outcomes, and risk factors. Current reports on Form 8-K disclose material events such as earnings releases, senior note offerings, and other significant corporate actions, including public offerings of unsecured senior notes issued under an existing indenture.
The company’s definitive proxy statement on Schedule 14A (DEF 14A) outlines board structure, director elections, committee responsibilities, and proposals submitted to shareholders, as well as extensive discussion of executive compensation, pay versus performance, and amendments to the articles of incorporation. These materials also summarize Atmos Energy’s vision to be the safest provider of natural gas services and its strategy to operate its business exceptionally well, invest in people and infrastructure, and enhance its culture.
On this page, users can review Atmos Energy’s Forms 10-K, 10-Q, 8-K, and DEF 14A as they are made available through EDGAR. AI-powered summaries help explain the contents of lengthy filings, highlight important sections such as financing transactions and governance changes, and make it easier to understand how regulatory disclosures relate to ATO stock and the company’s regulated utility business.
Atmos Energy (ATO) reported an insider equity change by a company officer (Vice President & Controller). On 11/04/2025, 336 shares of common stock were acquired following the vesting of performance-based restricted stock units under the company’s Long-Term Incentive Plan at a reported price of $172.96 per share. In connection with the vesting, 116 shares were disposed of to satisfy tax withholding at $172.96 per share.
After these transactions, directly owned shares stood at 1,091. The filing also updates indirect holdings to 1.4047 shares through the Atmos Energy Corporation Retirement Savings Plan and Trust. An additional end-of-period update reflects dividend reinvestment activity as of November 1, 2025.
Atmos Energy Corp (ATO) reported insider equity activity by an officer (Senior Advisor) on a Form 4. On 11/04/2025, 5,396 shares were acquired upon vesting of performance-based RSUs under the company’s Long-Term Incentive Plan (transaction code M) at $172.96. To cover taxes, 2,124 shares were withheld (code F) at $172.96.
After these transactions, the reporting person beneficially owned 31,212.7159 shares directly. Indirect holdings were 1,800.1068 shares by the Atmos Energy Corporation Retirement Savings Plan and Trust as of November 1, 2025.
Atmos Energy (ATO) senior vice president, Utility Operations, reported routine insider activity on 11/04/2025. The filing shows the vesting of 5,396 shares from performance-based restricted stock units under the company’s 1998 Long-Term Incentive Plan, and the withholding of 2,124 shares to cover taxes, both at a reported price of $172.96.
After these transactions, the officer directly owned 34,594.021 shares and held 2,138.8013 shares indirectly through the Retirement Savings Plan. The filing also updates end-of-period holdings as of November 1, 2025 for shares received via automatic dividend reinvestment and for the Retirement Savings Plan.
Atmos Energy (ATO) reported insider equity activity by a company officer. On 11/04/2025, 5,396 shares were acquired via the vesting of performance-based restricted stock units at $172.96 (Code M), and 2,124 shares were withheld for taxes at $172.96 (Code F). Following these transactions, the officer directly owned 27,093.083 shares. In addition, 2,899.0165 shares were held indirectly through the Atmos Energy Corporation Retirement Savings Plan and Trust as of November 1, 2025.
Edward Geiser, a director of Atmos Energy Corp (ATO), reported a grant and holdings of phantom stock units tied to the companys common stock. The filing shows a grant dated 10/01/2025 of 191.036 phantom stock units under the companys deferred compensation election at a reported price of $170.125 per unit. The Form 4 lists total phantom stock units associated with the reporting person as 2,118.0357 and a reported post-transaction holdings figure of 1,109.3077 (as shown in the table). The filing explains that each phantom stock unit equals one share, units are granted under the 1998 Long-Term Incentive Plan, will be settled when the director leaves the Board, and include small allocations from a dividend reinvestment feature (11.11 and 4.82 units noted).
Rafael Garza, identified as a director of Atmos Energy Corporation (ATO), reported an acquisition of 66 shares of the issuer's common stock on 10/01/2025 at a reported price of $170.125 per share. The shares were received under the Atmos Energy Corporation 1998 Long-Term Incentive Plan and the transaction is stated to be exempt under Rule 16b-3(d). The Form 4 was filed as a single reporting-person filing and the submission was signed by an agent acting under power of attorney. The disclosure shows the post-transaction beneficial ownership for this reported line as 66 shares held directly.
Atmos Energy Corporation filed an 8-K reporting documentation related to its long-term debt instruments. The filing references an indenture dated March 26, 2009 and includes an Officers' Certificate dated October 1, 2025, along with Global Security instruments for the 5.450% Senior Notes due 2056. The cover page interactive XBRL data is included as Exhibit 101. The filing is signed by Daniel M. Meziere, Vice President of Investor Relations and Treasurer. These exhibits document the legal and administrative framework for the companys outstanding senior notes and the related trustee arrangements.
Atmos Energy Corporation filed an 8-K reporting documentation and closing steps tied to a debt issuance and related legal opinions. The filing lists an Underwriting Agreement dated September 18, 2025, a Form of Officers' Certificate dated October 1, 2025, and a Form of Global Security for 5.450% Senior Notes due 2056. Legal opinions and consents from Gibson, Dunn & Crutcher LLP and Hunton Andrews Kurth LLP are included, and the cover page XBRL tags are embedded in the inline XBRL document. The form is executed by Daniel M. Meziere, Vice President of Investor Relations and Treasurer. The material here documents transaction paperwork and closing exhibits rather than financial results.
Atmos Energy Corporation files a prospectus supplement for debt securities that incorporates by reference its 10-K for the fiscal year ended September 30, 2024 and Quarterly Reports including the quarter ended June 30, 2025. The company reported $3,965,275 (in thousands) for the nine months ended June 30, 2025 versus $3,507,243 for the nine months ended June 30, 2024, and presented related period comparatives across fiscal years. Basic per-share metrics shown include $6.40 for the nine months ended June 30, 2025 versus $6.00 in 2024 and other per-share figures for prior years.
Balance sheet snapshots show total assets of $27,712,527 (in thousands) as of June 30, 2025, versus $24,891,251 as of September 30, 2024. The prospectus supplement discloses the company's service footprint and customer meters by state, including Texas with 1,804,265 customer meters, Louisiana 360,870, and other state-level meter counts. Interest on the notes will be payable semi-annually beginning in 2026. The company states its FY2024 financial statements were audited by Ernst & Young LLP.
T. Rowe Price Associates, Inc. reports beneficial ownership of 7,745,683 shares of Atmos Energy Corp common stock, representing 4.9% of the class. The filing shows sole voting power over 7,547,409 shares and sole dispositive power over 7,743,775 shares, with no shared voting or dispositive power reported. The reporting person states the shares were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer. The statement is filed on Schedule 13G/A by T. Rowe Price as an investment adviser.