Shares Outstanding for Atmos Energy (ATO)
According to Atmos Energy's latest reported financial statements, the company's latest reported diluted shares outstanding is 164.87M. Diluted weighted-average shares outstanding is the share count used to compute per-share metrics like EPS. Buybacks lower it; new issuance, stock-based compensation, and convertible securities raise it. Multiply by the stock price for market capitalization.
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
ATO
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Latest period
164.87M
YoY change
+5.2%
5Y CAGR
+5.5%
Peak year (2025)
160.57M
Latest annual
160.57M
Shares Outstanding history chart for Atmos Energy (ATO) from 1985 to 2025
Shares Outstanding history table for Atmos Energy (ATO) from 1985 to 2025
| Fiscal year | Period ended | Reported | Shares Outstanding | YoY |
|---|---|---|---|---|
| 2025 | 160.57M | +5.2% | ||
| 2024 | 152.67M | +5.2% | ||
| 2023 | 145.17M | +5.1% | ||
| 2022 | 138.10M | +6.4% | ||
| 2021 | 129.83M | +5.7% | ||
| 2020 | 122.87M | +4.6% | ||
| 2019 | 117.46M | +5.8% | ||
| 2018 | 111.01M | +4.6% | ||
| 2017 | 106.10M | +2.5% | ||
| 2016 | 103.52M | +1.6% | ||
| 2015 | 101.89M | +4.4% | ||
| 2014 | 97.61M | +6.4% | ||
| 2013 | 91.71M | +0.6% | ||
| 2012 | 91.17M | +0.6% | ||
| 2011 | 90.65M | -1.9% | ||
| 2010 | 92.42M | +0.4% | ||
| 2009 | 92.02M | +1.9% | ||
| 2008 | 90.27M | +2.9% | ||
| 2007 | 87.75M | +7.8% | ||
| 2006 | 81.39M | +3.0% | ||
| 2005 | 79.01M | +45.2% | ||
| 2004 | 54.42M | +17.0% | ||
| 2003 | 46.50M | +12.7% | ||
| 2002 | 41.25M | +7.9% | ||
| 2001 | 38.25M | +21.1% | ||
| 2000 | 31.59M | +2.5% | ||
| 1999 | 30.82M | +2.6% | ||
| 1998 | 30.03M | +2.2% | ||
| 1997 | 29.38M | +85.4% | ||
| 1996 | 15.85M | +2.8% | ||
| 1995 | 15.41M | +1.4% | ||
| 1994 | 15.20M | +40.3% | ||
| 1993 | 10.83M | +5.0% | ||
| 1992 | 10.31M | +4.4% | ||
| 1991 | 9.88M | +7.5% | ||
| 1990 | 9.18M | +0.9% | ||
| 1989 | 9.10M | +30.5% | ||
| 1988 | 6.97M | +13.6% | ||
| 1987 | 6.14M | +4.5% | ||
| 1986 | 5.87M | +4.9% | ||
| 1985 | 5.60M | — |
Shares Outstanding values are taken from Atmos Energy's reported income statements (10-Q quarterly and 10-K annual filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the date the filing was reported; YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
Analysis
Atmos Energy (ATO) most recent annual diluted shares outstanding stands at 160.57M (2025) – grew 5.2% year-over-year.
Atmos Energy diluted shares outstanding has grown for 14 consecutive years, with a +5.5% compound annual growth rate over 2020–2025 (5 years).
The highest annual diluted shares outstanding of 160.57M was reported in 2025. The lowest in the available history was 5.60M in 1985.
Within Utilities, Atmos Energy (ATO) ranks 9th among 8 peers we track. The peer median for diluted shares outstanding is 714.85M.
Atmos Energy Shares Outstanding by Year
Atmos Energy Shares Outstanding 2025: 160.57M
Atmos Energy diluted shares outstanding in 2025 was 160.57M, grew 5.2% from 2024. This figure represents the highest annual value in the available history.
Atmos Energy Shares Outstanding 2024: 152.67M
Atmos Energy diluted shares outstanding in 2024 was 152.67M, grew 5.2% from 2023.
Atmos Energy Shares Outstanding 2023: 145.17M
Atmos Energy diluted shares outstanding in 2023 was 145.17M, grew 5.1% from 2022.
Atmos Energy Shares Outstanding 2022: 138.10M
Atmos Energy diluted shares outstanding in 2022 was 138.10M, grew 6.4% from 2021.
Atmos Energy Shares Outstanding 2021: 129.83M
Atmos Energy diluted shares outstanding in 2021 was 129.83M.
See more financial history for Atmos Energy (ATO).
Sector peers — Shares Outstanding
Companies in the same sector as Atmos Energy, ranked by their latest diluted shares outstanding.
| Company | Shares Outstanding | Sector |
|---|---|---|
| NextEra Energy, Inc. (NEE) | 2.09B | Utilities |
| The Southern Company (SO) | 1.11B | Utilities |
| Dominion Energy, Inc. (D) | 855.30M | Utilities |
| Duke Energy Corporation (DUK) | 777.00M | Utilities |
| Sempra (SRE) | 652.70M | Utilities |
| American Electric Power Company, Inc. (AEP) | 520.21M | Utilities |
| Constellation Energy Corporation (CEG) | 314.00M | Utilities |
| GE Vernova Inc. (GEV) | 276.00M | Utilities |
Frequently asked questions
What is Atmos Energy's diluted shares outstanding?
- Latest reported diluted shares outstanding for Atmos Energy (ATO) is 164.87M (period ending December 31, 2025).
How has Atmos Energy diluted shares outstanding changed year-over-year?
- Atmos Energy (ATO) diluted shares outstanding changed +5.2% year-over-year on the latest annual filing.
What is the long-term growth rate of Atmos Energy diluted shares outstanding?
- Atmos Energy (ATO) diluted shares outstanding compound annual growth rate is +5.5% over the most recent 5 years available.
When did Atmos Energy diluted shares outstanding hit its highest annual value?
- Atmos Energy diluted shares outstanding reached its highest annual value of 160.57M in 2025.
What was Atmos Energy diluted shares outstanding in 2024?
- Atmos Energy (ATO) diluted shares outstanding in 2024 was 152.67M.
What was Atmos Energy diluted shares outstanding in 2025?
- Atmos Energy (ATO) diluted shares outstanding in 2025 was 160.57M.
Metrics overview
Pick a metric for charts, filings, and peers — each row shows the latest TTM or annual value with year-over-year change.
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