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.
Atmos Energy Corporation filings document the regulatory record for a NYSE-listed natural gas utility with no-par-value common stock. Recent 8-K reports furnish earnings releases and exhibits, disclose material agreements tied to revolving credit facilities and senior note issuances, and record capital-structure actions under registration statements and indentures.
Proxy and governance filings cover shareholder voting matters, director election standards, authorized share provisions, officer liability limits, indemnification language, executive compensation, and board-related proposals. The filings also identify the company’s Texas and Virginia corporate jurisdictions and recurring disclosure areas for operating results, financing, and governance.
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.
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.
Atmos Energy (ATO) reported insider activity by its President & CEO and Director on 11/04/2025. The executive acquired 32,297 shares of common stock (Code M) at $172.96 from the vesting of performance-based restricted stock units under the company’s long-term incentive plan, and disposed of 12,709 shares (Code F) at $172.96 to satisfy tax withholding.
Following these transactions, direct beneficial ownership stood at 125,364.199 shares. Indirect holdings were 13,036.202 shares through the Atmos Energy Corporation Retirement Savings Plan and Trust as of November 1, 2025.
Atmos Energy (ATO) reported insider activity by its President & CEO and Director on 11/04/2025. The executive acquired 32,297 shares of common stock (Code M) at $172.96 from the vesting of performance-based restricted stock units under the company’s long-term incentive plan, and disposed of 12,709 shares (Code F) at $172.96 to satisfy tax withholding.
Following these transactions, direct beneficial ownership stood at 125,364.199 shares. Indirect holdings were 13,036.202 shares through the Atmos Energy Corporation Retirement Savings Plan and Trust as of November 1, 2025.
Atmos Energy (ATO) reported an insider equity change by its Sr. Vice President & CFO. On 11/04/2025, performance-based RSUs vested under the company’s 1998 Long-Term Incentive Plan, resulting in the acquisition of 7,610 shares of common stock (code M) at $172.96. To satisfy tax obligations, 2,995 shares were withheld (code F) at $172.96.
Following these transactions, the executive held 59,614.7064 shares directly. Indirect holdings were 1,422.4996 shares via the Atmos Energy Corporation Retirement Savings Plan and Trust, updated as of November 1, 2025.
Atmos Energy (ATO) reported an insider equity change by its Sr. Vice President & CFO. On 11/04/2025, performance-based RSUs vested under the company’s 1998 Long-Term Incentive Plan, resulting in the acquisition of 7,610 shares of common stock (code M) at $172.96. To satisfy tax obligations, 2,995 shares were withheld (code F) at $172.96.
Following these transactions, the executive held 59,614.7064 shares directly. Indirect holdings were 1,422.4996 shares via the Atmos Energy Corporation Retirement Savings Plan and Trust, updated as of November 1, 2025.
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 (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.