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 Corporation is asking shareholders to vote at a virtual annual meeting on February 4, 2026. Holders of common stock as of December 12, 2025, may attend and vote online.
Shareholders are being asked to elect 12 directors for one-year terms, ratify Ernst & Young LLP as independent auditor for fiscal 2026, and approve on an advisory basis the compensation of named executive officers. The Board recommends voting FOR all three items.
Several amendments to the Articles of Incorporation are also proposed: increasing authorized common shares, adopting plurality voting in contested director elections, limiting certain officer liability as permitted by Texas and Virginia law, clarifying indemnification provisions, and removing obsolete and technical language. The Board recommends FOR each amendment.
The proxy highlights fiscal 2025 performance, including net income of $1,198.8 million and diluted EPS of $7.46, up from $1,042.9 million and $6.83, and about $3.6 billion in capital spending, 87% directed to system safety and reliability, along with a dividend of $3.48 per share, the 41st consecutive year of dividend growth.
Atmos Energy Corp director reported a charitable gift of company stock. On 12/16/2025, the insider transferred 442 shares of Atmos Energy common stock, recorded at $169.16 per share, classified as a gift transaction. After this transfer, the director directly beneficially owns 6,877.061 Atmos Energy shares. The gift was made to a charitable giving fund rather than through an open-market sale.
Atmos Energy Corporation senior vice president of human resources reported a charitable stock gift and updated holdings. On December 10, 2025, the officer made a gift of 1,500 shares of Atmos Energy common stock, reported at a price of $166.8 per share, leaving 25,593.083 shares held directly after the transaction. The filing notes that the gifted shares went to a charitable donor advised fund.
The officer also reported 2,899.0165 shares held indirectly through the Atmos Energy Corporation Retirement Savings Plan and Trust, updating end-of-period holdings as of December 1, 2025. The filing is made on behalf of a single reporting person and reflects personal portfolio movements rather than changes at the corporate level.
BlackRock, Inc. filed an amended Schedule 13G reporting a passive ownership stake in ATMOS ENERGY CORP common stock. BlackRock reports beneficial ownership of 16,204,431 shares, representing 10.0% of the outstanding common stock as of the reported event date. It has sole voting power over 15,056,014 shares and sole dispositive power over 16,204,431 shares, with no shared voting or dispositive power. The filing explains that various underlying investors have rights to dividends or sale proceeds from these shares, but no single underlying holder owns more than five percent of Atmos Energy’s outstanding common shares. BlackRock certifies the position is held in the ordinary course of business and not for the purpose of changing or influencing control of Atmos Energy.
Atmos Energy Corp director reports small stock sale
A director of Atmos Energy Corp reported selling 450 shares of common stock on 12/03/2025 at a price of $171.15 per share. After this transaction, the director beneficially owns 876.598 Atmos Energy shares in direct ownership. The filing is made on behalf of one reporting person and reflects a routine insider transaction disclosure required for company directors.
Atmos Energy has a notice under Rule 144 indicating that a shareholder plans to sell restricted common stock. The planned sale covers 452 common shares through Morgan Stanley Smith Barney LLC on the NYSE, with an aggregate market value of 77359.80, and an approximate sale date of 12/03/2025. The filing notes that 161,693,336 common shares were outstanding for the issuer, giving context for the small size of this planned transaction relative to the company’s total equity.
Atmos Energy (ATO) filed its annual report, outlining a regulated utility serving about 3.4 million customers across eight states through two segments: distribution and pipeline & storage. The company emphasizes infrastructure modernization and mechanisms that reduce regulatory lag and stabilize margins.
Ratemaking activity was a key driver in fiscal 2025. Annualized outcomes implemented totaled $333,567,000 in increased operating income, or $322,846,000 excluding EDIT impacts. Notable actions included Atmos Pipeline–Texas GRIP ($77,206,000) and Mid‑Tex DARR ($25,916,000), with Louisiana adding $22,304,000. Mid‑Tex Cities approved a Formula Rate Mechanism effective October 1, 2025 with a rate base of $8.3 billion, authorized return of 7.42%, debt/equity 42/58, and ROE 9.80%.
As of March 31, 2025, the aggregate market value of common stock held by non‑affiliates was $24,413,133,216. As of November 10, 2025, shares outstanding were 161,693,336. The company reported peak‑day distribution demand of approximately 4.2 Bcf on February 19, 2025 against estimated availability of 5.4 Bcf. At September 30, 2025, Atmos Energy had 5,487 employees.
Atmos Energy (ATO): Wellington Management Group LLP and affiliated entities filed an amended Schedule 13G reporting beneficial ownership of 10,467,844 Atmos Energy common shares, equal to 6.5% of the class, with a date of event of 09/30/2025.
The filing lists shared voting power over 9,617,937 shares and shared dispositive power over 10,467,828 shares; sole voting and dispositive power are 0. The securities are owned of record by clients of Wellington’s investment advisers. The filing states no client is known to hold more than five percent of the class. Wellington certifies the holdings were acquired and are held in the ordinary course and not for the purpose of changing or influencing control.
Atmos Energy (ATO) reported its fourth-quarter and full fiscal year 2025 results for the period ended September 30, 2025, via a news release. The company said its officers will discuss the results on a live webcasted conference call on November 6, 2025 at 10 a.m. Eastern Time, with presentation slides available on its website.
The news release was furnished as Exhibit 99.1 under Item 2.02 and is not deemed filed for purposes of Section 18 of the Exchange Act or incorporated by reference into other filings.