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ATMOS ENERGY CORP (ATO)

SEC filings, insider trading & institutional ownership from EDGAR.

NYSEUtilitiesGas Utilities

Atmos Energy Corporation, headquartered in Dallas, Texas, is the largest natural-gas-only distributor in the United States by customer count, serving over 3.3 million residential, commercial, public authority, and industrial customers across eight states, primarily in the South. The company operates through two reportable segments: distribution and pipeline and storage. The distribution segment encompasses regulated natural gas distribution operations across six divisions—Mid-Tex (Texas/Dallas-Fort Worth), Kentucky/Mid-States (Kentucky, Tennessee, Virginia), Louisiana, West Texas (Amarillo, Lubbock, Midland), Mississippi, and Colorado-Kansas—operating under 1,026 non-exclusive municipal franchises with terms ranging from five to 35 years.

Revenues in this segment are regulated, with purchased gas cost adjustment mechanisms allowing dollar-for-dollar recovery of gas costs, insulating operating income from commodity price fluctuations; natural gas supply is sourced competitively from major suppliers including Cima Energy, ConocoPhillips, EnLink Gas Marketing, and others, delivered via 34 pipeline transportation companies, with peak-day supply capability of approximately 5.3 Bcf against a fiscal 2024 peak demand of about 4.3 Bcf. The pipeline and storage segment consists primarily of Atmos Pipeline-Texas (APT), one of the largest intrastate pipeline systems in Texas by mileage, serving the Barnett Shale, Texas Gulf Coast, and Permian Basin regions with five underground storage facilities, plus a 21-mile natural gas transmission pipeline in Louisiana that aggregates supply for the company's Louisiana distribution division. The company's strategic focus is on modernizing infrastructure, reducing regulatory lag, and investing in safety, innovation, and environmental sustainability, supported by favorable regulatory mechanisms including formula rate mechanisms in four states, infrastructure programs in all operating states enabling recovery of approximately 90% of capital expenditures within six months, weather normalization adjustment (WNA) mechanisms in seven states covering about 97% of residential/commercial revenues, and bad debt gas cost recovery in six states covering roughly 89% of such revenues.

Regulatory outcomes vary by jurisdiction, with authorized returns on equity generally ranging from approximately 9.2% to 11.45% and rate bases spanning from tens of millions to over $7 billion (Mid-Tex). In fiscal 2024, the company achieved annualized rate actions increasing operating income by $376.3 million (or $307.1 million excluding excess deferred income tax impacts), following $263.1 million in fiscal 2023 and $174.9 million in fiscal 2022, with an additional $218.0 million in rate requests pending as of fiscal year-end, several of which were subsequently approved. The company continues to pursue rate design improvements and regulatory mechanisms to mitigate lag and ensure stable, predictable margins amid evolving federal energy policy, safety regulations, and economic conditions.

AI-summarized from Item 1 (Business) of the company's most recent 10-K filing.

RevenueFY2025
$4.70B
▲ 12.9%YoY
Net incomeFY2025
$1.20B
▲ 14.9%YoY
Diluted EPSFY2025
$7.46
▲ 9.2%YoY
Insider net6 mo
+22.1K
shares0 sells1 buys
Institutions
44
$18.09B held

Financials

As reported to the SEC via XBRL, no adjustments

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Revenue & net income
$1B$2B$3B$4B$5B
FY2022FY2023FY2024FY2025
RevenueNet income
FY2025 highlightsfrom 10-K
Operating income$1.56B
Diluted EPS$7.46
Net margin25.5%

Latest filings

10-K, 10-Q, 8-K, Form 4 & 13D/G. Sourced directly from SEC EDGAR

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FormFiledAccession
SC 13G/AamendedWELLINGTON MANAGEMENT GROUP LLPAug 13, 2026EDGAR
SC 13G/AamendedWellington Group Holdings LLPAug 13, 2026EDGAR
SC 13G/AamendedWellington Investment Advisors Holdings LLPAug 13, 2026EDGAR
SC 13G/AamendedWellington Management Company LLPAug 13, 2026EDGAR
4WARE WILLIAM JAMESAug 12, 2026EDGAR
8-KAug 10, 2026EDGAR
10-QAug 5, 2026EDGAR
8-KAug 5, 2026EDGAR

Insider trading

From Form 4 filings

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InsiderDateType
WARE WILLIAM JAMESAug 11, 2026Buy
GARZA RAFAEL GJul 1, 2026Grant / award
AKERS JOHN KMay 2, 2026Tax withholding
AKERS JOHN KMay 2, 2026Option exercise
FAULK MICHELLEMay 2, 2026Tax withholding

Top holders

13F & 13D/G · latest quarter

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HolderFiledValue
BlackRock, Inc.Aug 7, 2026$2.62B
STATE STREET CORPAug 7, 2026$1.96B
Vanguard Capital ManagementAug 13, 2026$1.88B
Vanguard Portfolio ManagementAug 13, 2026$1.61B
WELLINGTON MANAGEMENT GROUP LLPAug 14, 2026$1.58B

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Data as of Aug 28, 2026Source: SEC EDGAR.