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ATMOS ENERGY CORP (ATO) SEC Filings, Mar-May 2026

ATO NYSE

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.

Our SEC filing database is enhanced with expert analysis from Rhea-AI, providing insights into the potential impact of each filing on ATMOS ENERGY's stock performance. Each filing includes a concise AI-generated summary, sentiment and impact scores, and end-of-day stock performance data showing the actual market reaction. Navigate easily through different filing types including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, proxy statements (DEF 14A), and Form 4 insider trading disclosures.

Designed for fundamental investors and regulatory compliance professionals, our page simplifies access to critical SEC filings. By combining real-time SEC filing updates, Rhea-AI's analytical insights, and historical stock performance data, we provide comprehensive visibility into ATMOS ENERGY's regulatory disclosures and financial reporting.

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ATMOS ENERGY CORP Senior Advisor Karen E. Hartsfield exercised restricted stock units that converted into 2,815 shares of common stock, while 1,042 shares were withheld to cover tax obligations under the company’s long-term incentive plan. After these routine compensation-related entries, she directly holds about 32,986 common shares, plus additional indirect holdings through a retirement savings plan and 4,195 remaining restricted stock units representing future rights to receive common stock.

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ATMOS ENERGY CORP senior vice president and CFO Christopher T. Forsythe reported routine equity compensation activity. On May 2, 2026, he exercised 3,970 restricted stock units into the same number of common shares, consistent with the company’s long‑term incentive plan.

Of these shares, 1,563 were withheld at $189.74 per share to satisfy tax obligations, a non‑market disposition that does not reflect an open‑market sale. After these transactions, Forsythe directly owned 62,021.7064 common shares and held 6,220 restricted stock units. An additional 1,438.7392 common shares were reported indirectly through the Atmos Energy Corporation Retirement Savings Plan and Trust as of May 1, 2026.

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Atmos Energy Vice President & Controller Michelle Faulk reported routine equity compensation activity. On May 2, 2026, 175 restricted stock units vested and were converted into the same number of common shares under the company’s long-term incentive plan.

Of these 175 shares, 70 were withheld to satisfy tax obligations at a reference price of $189.74 per share, leaving her with a net increase in directly held stock. After these transactions, she directly holds 1,201.886 common shares and indirectly holds 1.4207 shares through the Atmos Energy Corporation Retirement Savings Plan and a dividend reinvestment feature.

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Atmos Energy President & CEO John K. Akers reported routine equity compensation activity. On May 2, 2026, he exercised 16,850 restricted stock units, each converting into one share of common stock under the company’s long-term incentive plan.

To satisfy tax obligations related to this vesting, 6,235 common shares were withheld, a non-market disposition that does not represent an open-market sale. After these transactions, Akers directly held 135,979.199 common shares and indirectly held 13,185.0263 common shares through the Atmos Energy Corporation Retirement Savings Plan and Trust.

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Vanguard Capital Management filed a Schedule 13G reporting beneficial ownership of 12,468,210 shares of Atmos Energy Corp common stock, representing 7.53% of the class as of 03/31/2026. The filing shows sole voting power of 1,732,663 shares and sole dispositive power over 12,468,210 shares. The filing clarifies ownership is held on behalf of various Vanguard affiliates and funds and is signed by Ashley Grim on 04/29/2026.

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Vanguard Portfolio Management reported beneficial ownership of 9,305,025 shares of Atmos Energy Corp common stock, representing 5.62% of the class. The filing shows sole voting power for 19,392 shares and sole dispositive power for 9,305,025 shares. The disclosure attributes holdings to Vanguard Portfolio Management LLC and affiliated investment divisions.

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GARZA RAFAEL G reported acquisition or exercise transactions in this Form 4 filing.

ATMOS ENERGY CORP director Rafael G. Garza received a stock award of 60 shares of Common Stock, valued at $185.09 per share. The award was granted under the Atmos Energy Corporation 1998 Long-Term Incentive Plan in a transaction exempt under Rule 16b-3(d). Following this grant, Garza directly holds 192 shares.

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ATMOS ENERGY CORP director Edward Geiser received an equity-based award tied to the company’s stock. He acquired 175.5903 units of Phantom Deferred Compensation, each equivalent to one share of common stock, at a reference value of $185.09 per unit, bringing this phantom balance to 1,491.7505 units.

He also holds 3,062.3895 Phantom Stock Units linked to common shares. These units, granted under the 1998 Long-Term Incentive Plan and partially created by converting director fees and reinvesting dividends, are scheduled to be settled when his service on the board ends.

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Atmos Energy Corporation extended the maturities of its two major revolving credit facilities. The Three Year Credit Facility, a $1.5 billion senior unsecured revolving credit facility, now matures on March 28, 2029. The Five Year Credit Facility, also a $1.5 billion senior unsecured revolving credit facility, now matures on March 28, 2031. Both maturity extensions became effective on March 27, 2026, under the existing Revolving Credit Agreements with Crédit Agricole as Administrative Agent.

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Atmos Energy Corp: The Vanguard Group filed Amendment No. 13 to a Schedule 13G/A reporting 0 shares of Common Stock, representing 0% ownership as of 03/13/2026. The filing states that on January 12, 2026 Vanguard executed an internal realignment and, "in accordance with SEC Release No. 34-39538 (January 12, 1998)," certain subsidiaries will report beneficial ownership separately on a disaggregated basis. The amendment is signed by Ashley Grim, Head of Global Fund Administration, on 03/26/2026.

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FAQ

How many ATMOS ENERGY (ATO) SEC filings are available on StockTitan?

StockTitan tracks 85 SEC filings for ATMOS ENERGY (ATO), including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, and Form 4 insider trading disclosures. Each filing includes AI-generated summaries, impact scoring, and sentiment analysis.

When was the most recent SEC filing for ATMOS ENERGY (ATO)?

The most recent SEC filing for ATMOS ENERGY (ATO) was filed on May 4, 2026.