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 (ATO) entered into an underwriting agreement for an underwritten public offering of $700 million aggregate principal amount of 6.000% Senior Notes due 2036. BNP Paribas Securities Corp., Credit Agricole Securities (USA) Inc. and U.S. Bancorp Investments, Inc. are representatives of the several underwriters. Atmos Energy expects net proceeds of approximately $691.4 million after the underwriting discount and its estimated offering expenses.
The offering is expected to close on or about October 9, 2026, subject to customary closing conditions. The offering is registered under the Securities Act through Atmos Energy's Form S-3 registration statement. The prospectus supplement is dated October 6, 2026, and was filed under Rule 424(b) on October 8, 2026. The Notes will be represented by two global securities.
Atmos Energy Corporation (ATO) is offering $700,000,000 aggregate principal amount of 6.000% senior notes due November 15, 2036. The public offering price is 99.638% of principal, and the underwriting discount is 0.650%. Atmos Energy estimates net proceeds of approximately $691.4 million after the discount and estimated offering expenses, for general corporate purposes.
The notes bear interest at 6.000% per year, payable each May 15 and November 15 beginning May 15, 2027. They are unsecured and unsubordinated, rank equally with existing and future unsecured and unsubordinated debt, and are effectively subordinated to secured debt and subsidiary liabilities. The notes will not be listed on an exchange; delivery is expected on or about October 9, 2026. For the nine months ended June 30, 2026, unaudited operating revenues were $4,184.046 million and net income was $1,227.552 million, compared with $3,965.275 million and $1,023.863 million, respectively, in the prior-year period. Atmos Energy cautions that the 2026 nine-month results are not necessarily indicative of fiscal-year results because of business seasonality.
Atmos Energy Corp (ATO) reports that its senior vice president, utility operations, Jeffery D. Martinez, held 5,185 common shares directly and 2,600 common shares indirectly through the Retirement Savings Plan and Trust as of October 1, 2026. He also held 1,715 restricted stock units directly; each unit represents a contingent right to receive one common share, and the units will vest and be delivered three years from the date of grant.
Atmos Energy Corporation is preparing a primary offering of senior notes under its shelf registration, subject to completion. Atmos Energy expects to use the net proceeds for general corporate purposes. The notes are unsecured senior obligations.
Atmos Energy Corp director Edward Geiser acquired 224.6614 Phantom Deferred Compensation units on October 1, 2026; the reported price was $155.7900 per share. He received the units by electing to convert part of his director fees; they are to be settled upon termination of Board service. His resulting position was 1,923.2765 units, including 10.04 units allocated through dividend reinvestment since the prior filing. He also reported 3,098.8788 Phantom Stock Units, including 18.32 dividend-reinvestment units. Each phantom unit is equivalent to one common share.
Atmos Energy Corporation director Rafael G. Garza acquired 77 shares of common stock on October 1, 2026, under the Atmos Energy Corporation 1998 Long-Term Incentive Plan. The acquisition was reported at $155.79 per share, and Garza directly held 334 shares after the transaction. The transaction was described as exempt under Rule 16b-3(d).
ATMOS ENERGY CORP (ATO) senior vice president of human resources J. Matt Robbins reported a bona fide gift of 1,500 shares of common stock on September 15, 2026, to a charitable donor advised fund. After this gift, he holds 25,866.083 shares directly and 2,949.5771 shares indirectly through the Atmos Energy Corporation Retirement Savings Plan and Trust. No Rule 10b5-1 trading plan is reported.
ATMOS ENERGY CORP (symbol: ATO) is the issuer of record for a Form 4 filing submitted to the SEC. Jeffries James Henry IV reported acquisition or exercise transactions in this Form 4 filing.
ATMOS ENERGY CORP (ATO) reported that director James Henry Jeffries IV received an award of 1,000 Phantom Stock Units on September 1, 2026. Each phantom stock unit is equivalent to one share of common stock and is scheduled to be settled in shares of common stock when his service on the Board ends. Following this grant, he holds 1,000 Phantom Stock Units directly under the company’s 1998 Long-Term Incentive Plan.
ATMOS ENERGY CORP (ATO) reported the initial beneficial ownership of director James Henry Jeffries IV on a Form 3. The filing shows that he holds 4,593.601 shares of Common Stock as a direct owner. A footnote states these shares were held prior to his joining the Board of Directors.
Atmos Energy Corporation has a significant shareholder group led by Wellington Management entities. As of 06/30/2026, Wellington Management Group LLP and related holding and advisory affiliates report aggregate beneficial ownership of 9,185,798 shares of Atmos common stock, representing 5.5% of the class.
These shares are held of record by investment advisory clients of various Wellington investment advisers. Wellington reports no sole voting or dispositive power, but shared voting power over up to 8,696,682 shares and shared dispositive power over up to 9,185,788 shares, reflecting its role as a parent holding company over investment adviser subsidiaries rather than direct ownership.