Atmos Energy Corporation (ATO)
Utilities
Utilities - Regulated Gas
172.80 $
-0.8%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Atmos Energy Corporation (ATO)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.5% of the shares are freely tradable; institutional investors hold 102.7%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
102.7%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
0.4%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
99.5%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
2.4%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
167Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 10.46 | 17,451,963 | +2.5 | 03/31/2026 |
| State Street Corp | 6.81 | 11,372,750 | +5.4 | 03/31/2026 |
| Vanguard Capital Management, LLC | 6.43 | 10,735,547 | +0.0 | 03/31/2026 |
| Wellington Management Company LLP | 5.78 | 9,651,472 | -3.6 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.56 | 9,285,633 | +0.0 | 03/31/2026 |
| Capital Research & Mgmt Co - Division 3 | 4.39 | 7,326,778 | -38.4 | 03/31/2026 |
| Aristotle Capital Management LLC | 2.92 | 4,866,481 | -23.6 | 03/31/2026 |
| Geode Capital Management, LLC | 2.60 | 4,336,996 | +2.9 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Morn Total Stk Mkt Idx Investor | 3.17 | 5,299,378 | +0.7 | 06/30/2026 |
| Vanguard 500 Index Investor | 2.60 | 4,335,732 | +0.1 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.