ATMOS ENERGY CORP ATO
COM · Common Stock · CUSIP 049560105 · ISIN US0495601058
American energy company
- SectorUtilities
- IndustryNatural Gas Distribution
- HeadquartersDallas, TX
- Founded1983
- Websiteatmosenergy.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($150.8m this quarter). Holder counts are more reliable. Shares outstanding: 158.8m as of 2025-05-02, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $154.56. Options: 10 managers hold calls ($21.0m notional), 11 hold puts ($27.5m).
Trends to Q1 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 631 |
| Q4 2022 | 663 |
| Q1 2023 | 664 |
| Q2 2023 | 674 |
| Q3 2023 | 669 |
| Q4 2023 | 723 |
| Q1 2024 | 732 |
| Q2 2024 | 738 |
| Q3 2024 | 759 |
| Q4 2024 | 816 |
| Q1 2025 | 861 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2023 | 316 | 283 |
| Q3 2023 | 320 | 286 |
| Q4 2023 | 327 | 303 |
| Q1 2024 | 365 | 287 |
| Q2 2024 | 334 | 315 |
| Q3 2024 | 349 | 319 |
| Q4 2024 | 378 | 302 |
| Q1 2025 | 451 | 317 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $21.6m | $1.3m | 0.06 |
| Q3 2024 | $26.1m | $2.5m | 0.10 |
| Q4 2024 | $32.3m | $20.6m | 0.64 |
| Q1 2025 | $21.0m | $27.5m | 1.31 |
Biggest buyers
| Capital International Investors | Added | +1.6m |
| VANGUARD GROUP INC | Added | +424.2k |
| Clark Capital Management Group, Inc. | Added | +294.9k |
| Capital Group Private Client Services, Inc. | Added | +294.9k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Added | +257.3k |
| BlackRock, Inc. | Added | +254.4k |
| Aventail Capital Group, LP | New | +243.3k |
| UBS Group AG | Added | +239.5k |
| JENNISON ASSOCIATES LLC | Added | +215.2k |
| Perpetual Ltd | Added | +213.1k |
Biggest sellers
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -808.7k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -666.3k |
| CITADEL ADVISORS LLC | Reduced | -369.2k |
| Aristotle Capital Management, LLC | Reduced | -318.0k |
| AMERICAN CENTURY COMPANIES INC | Reduced | -276.4k |
| COOKE & BIELER LP | Reduced | -212.1k |
| DEUTSCHE BANK AG\ | Reduced | -186.5k |
| Moran Wealth Management, LLC | Reduced | -145.0k |
| Assenagon Asset Management S.A. | Reduced | -142.7k |
| HSBC HOLDINGS PLC | Reduced | -134.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $6.6m42.4k shares |
| CITADEL ADVISORS LLC | Reduced | $4.6m29.5k shares |
| WOLVERINE TRADING, LLC | Added | $3.5m22.7k shares |
| Twin Tree Management, LP | Unchanged | $2.8m17.8k shares |
| JANE STREET GROUP, LLC | Reduced | $2.7m17.5k shares |
| TUDOR INVESTMENT CORP ET AL | Added | $386.4k2.5k shares |
| Walleye Trading LLC | New | $340.1k2.2k shares |
| GROUP ONE TRADING LLC | Reduced | $139.1k900 shares |
| PEAK6 LLC | Reduced | $108.2k700 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SIMPLEX TRADING, LLC | Added | $10.8m70.1k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $8.2m53.2k shares |
| CITADEL ADVISORS LLC | Added | $3.9m25.5k shares |
| WOLVERINE TRADING, LLC | Reduced | $2.0m13.3k shares |
| Walleye Trading LLC | New | $973.9k6.3k shares |
| CAPSTONE INVESTMENT ADVISORS, LLC | Reduced | $865.6k5.6k shares |
| JANE STREET GROUP, LLC | New | $324.6k2.1k shares |
| Walleye Capital LLC | New | $201.0k1.3k shares |
| GROUP ONE TRADING LLC | New | $77.3k500 shares |
| Quaker Wealth Management, LLC | First filing | $6194 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution -1.3 pts · filed 2026-07-27 | 8.7% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 7.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-28 | 5.6% |
| WELLINGTON MANAGEMENT GROUP LLP 13G · institution -1.0 pts · filed 2026-08-13 | 5.5% |
Fell to 5% or below in the last year: Capital International Investors (4.7%, 2026-05-14), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q1 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2023 | 0 | — | 2 | $1.5m | $1.4m |
| Q3 2023 | 0 | — | 1 | $1.5m | — |
| Q4 2023 | 0 | — | 2 | $1.6m | $1.4m |
| Q1 2024 | 0 | — | 1 | $1.7m | $1.7m |
| Q2 2024 | 0 | — | 1 | $47.2k | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 1 | $362.2k | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
None reported in Q1 2025.
Holders, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.06% of their portfolio | 20.8m $3.2bn | Added +424.2k |
| BlackRock, Inc. 0.05% of their portfolio | 14.1m $2.2bn | Added +254.4k |
| WELLINGTON MANAGEMENT GROUP LLP 0.37% of their portfolio | 12.3m $1.9bn | Reduced -808.7k |
| STATE STREET CORP 0.07% of their portfolio | 10.6m $1.6bn | Added +15.6k |
| Capital International Investors 0.30% of their portfolio | 9.8m $1.5bn | Added +1.6m |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.15% of their portfolio | 7.9m $1.2bn | Reduced -666.3k |
| Aristotle Capital Management, LLC 2.40% of their portfolio | 7.8m $1.2bn | Reduced -318.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.05% of their portfolio | 4.0m $618.1m | Added +204.3k |
| Invesco Ltd. 0.09% of their portfolio | 3.0m $462.4m | Reduced -116.2k |
| DEUTSCHE BANK AG\ 0.18% of their portfolio | 2.9m $447.0m | Reduced -186.5k |
| MORGAN STANLEY 0.02% of their portfolio | 2.2m $344.3m | Added +179.2k |
| BANK OF AMERICA CORP /DE/ 0.03% of their portfolio | 1.9m $289.6m | Added +160.2k |
| Legal & General Group Plc 0.07% of their portfolio | 1.7m $260.0m | Added +63.9k |
| NORTHERN TRUST CORP 0.04% of their portfolio | 1.6m $251.5m | Reduced -12.3k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.08% of their portfolio | 1.5m $237.5m | Reduced -6.6k |
| AMERICAN CENTURY COMPANIES INC 0.14% of their portfolio | 1.5m $226.4m | Reduced -276.4k |
| Perpetual Ltd 2.71% of their portfolio | 1.5m $224.8m | Added +213.1k |
| NORGES BANK 0.03% of their portfolio | 1.4m $221.5m | Reduced -50.1k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.25% of their portfolio | 1.4m $216.4m | Added +150.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.05% of their portfolio | 1.3m $203.7m | Added +257.3k |
| ProShare Advisors LLC 0.44% of their portfolio | 1.3m $193.4m | Reduced -97.9k |
| Pictet Asset Management Holding SA 0.20% of their portfolio | 1.2m $182.0m | Reduced -43.0k |
| WELLS FARGO & COMPANY/MN 0.04% of their portfolio | 1.1m $175.0m | Reduced -35.1k |
| SFMG, LLC 12.91% of their portfolio | 1.1m $163.6m | Reduced -664 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.03% of their portfolio | 950.6k $146.9m | Added +34.9k |
| UBS Group AG 0.03% of their portfolio | 930.2k $143.8m | Added +239.5k |
| Bank of New York Mellon Corp 0.03% of their portfolio | 928.9k $143.6m | Reduced -3.5k |
| COOKE & BIELER LP 1.43% of their portfolio | 924.9k $143.0m | Reduced -212.1k |
| RAYMOND JAMES FINANCIAL INC 0.05% of their portfolio | 895.5k $138.4m | Added +91.3k |
| Amundi 0.05% of their portfolio | 886.9k $137.7m | Added +67.9k |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO 1.47% of their portfolio | 813.3k $125.7m | Reduced -6.1k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.90% of their portfolio | 812.1k $125.5m | Reduced -13.6k |
| GOLDMAN SACHS GROUP INC 0.02% of their portfolio | 809.0k $125.1m | Reduced -93.2k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 721.0k $111.4m | Reduced -21.2k |
| California Public Employees Retirement System 0.07% of their portfolio | 667.2k $103.1m | Reduced -23.2k |
| REAVES W H & CO INC 2.59% of their portfolio | 658.1k $101.7m | Added +40.5k |
| PNC Financial Services Group, Inc. 0.05% of their portfolio | 644.4k $99.6m | Added +10.4k |
| FIRST TRUST ADVISORS LP 0.09% of their portfolio | 635.5k $98.2m | Added +118.9k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 609.0k $94.1m | Added +115.5k |
| ENVESTNET ASSET MANAGEMENT INC 0.03% of their portfolio | 602.6k $93.2m | Added +33.7k |
| SEI INVESTMENTS CO 0.12% of their portfolio | 597.3k $92.3m | Reduced -3.2k |
| NEUBERGER BERMAN GROUP LLC 0.07% of their portfolio | 575.2k $88.8m | Reduced -5.7k |
| CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC 1.29% of their portfolio | 543.7k $84.0m | Added +81.6k |
| Nilsine Partners, LLC 9.05% of their portfolio | 534.1k $82.6m | Reduced -14.2k |
| ROYAL BANK OF CANADA 0.02% of their portfolio | 526.0k $81.3m | Reduced -5.8k |
| Energy Income Partners, LLC 1.42% of their portfolio | 481.5k $74.4m | Added +14.0k |
| BARCLAYS PLC 0.03% of their portfolio | 475.3k $73.5m | Added +145.5k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.09% of their portfolio | 474.4k $73.3m | Reduced -5.8k |
| Capital Group Private Client Services, Inc. 0.69% of their portfolio | 456.9k $70.6m | Added +294.9k |
| BNP PARIBAS FINANCIAL MARKETS 0.05% of their portfolio | 454.1k $70.2m | First filing |
| EARNEST PARTNERS LLC 0.33% of their portfolio | 451.0k $69.7m | Added +15.4k |
| TD Asset Management Inc 0.06% of their portfolio | 448.6k $69.3m | Reduced -24.2k |
| JENNISON ASSOCIATES LLC 0.05% of their portfolio | 444.5k $68.7m | Added +215.2k |
| Swiss National Bank 0.05% of their portfolio | 438.4k $67.8m | Reduced -100 |
| Nuveen, LLC 0.02% of their portfolio | 422.6k $65.3m | First filing |
| Sumitomo Mitsui Trust Group, Inc. 0.05% of their portfolio | 418.6k $64.7m | Reduced -6.4k |
| HSBC HOLDINGS PLC 0.04% of their portfolio | 417.8k $64.5m | Reduced -134.4k |
| T. Rowe Price Investment Management, Inc. 0.04% of their portfolio | 409.0k $63.2m | Added +7.2k |
| HUNTINGTON NATIONAL BANK 0.45% of their portfolio | 399.1k $61.7m | Added +36.1k |
| Vest Financial, LLC 0.94% of their portfolio | 393.0k $60.7m | Reduced -4.9k |
| Chevy Chase Trust Holdings, LLC 0.19% of their portfolio | 386.1k $59.7m | Added +37.1k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.11% of their portfolio | 382.4k $59.1m | Reduced -87.6k |
| Partners Group Holding AG 2.48% of their portfolio | 366.5k $56.7m | Added +89.6k |
| CITADEL ADVISORS LLC 0.05% of their portfolio | 358.9k $55.5m | Reduced -369.2k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.08% of their portfolio | 355.0k $54.9m | Reduced -10.3k |
| MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH 1.59% of their portfolio | 350.3k $54.2m | Reduced -61.9k |
| BENJAMIN EDWARDS INC 0.75% of their portfolio | 346.0k $53.5m | Added +51.9k |
| Boston Trust Walden Corp 0.38% of their portfolio | 340.6k $52.7m | Reduced -28.9k |
| RHUMBLINE ADVISERS 0.05% of their portfolio | 340.5k $52.6m | Added +16.1k |
| Merewether Investment Management, LP 1.88% of their portfolio | 334.7k $51.7m | Reduced -8.6k |
| KBC Group NV 0.16% of their portfolio | 328.2k $50.7m | Added +49.2k |
| NOMURA ASSET MANAGEMENT CO LTD 0.15% of their portfolio | 326.1k $50.4m | Reduced -1.5k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.05% of their portfolio | 317.7k $49.1m | Added +23.7k |
| MIZUHO MARKETS AMERICAS LLC 1.03% of their portfolio | 307.5k $47.5m | Added +163.8k |
| Bahl & Gaynor LLC 0.24% of their portfolio | 305.9k $47.3m | Added +30.5k |
| Clark Capital Management Group, Inc. 0.34% of their portfolio | 305.8k $47.3m | Added +294.9k |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.27% of their portfolio | 296.3k $45.8m | Added +3.0k |
| Capital International, Inc./CA/ 0.53% of their portfolio | 280.7k $43.4m | Reduced -1.8k |
| AQR CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 256.7k $39.6m | Reduced -73.7k |
| STIFEL FINANCIAL CORP 0.04% of their portfolio | 255.1k $39.4m | Reduced -7.8k |
| ROYAL LONDON ASSET MANAGEMENT LTD 0.09% of their portfolio | 245.4k $37.9m | Added +8.3k |
| Aventail Capital Group, LP 1.86% of their portfolio | 243.3k $37.6m | New |
| BANK OF MONTREAL /CAN/ 0.02% of their portfolio | 233.5k $36.1m | Reduced -16.3k |
| Squarepoint Ops LLC 0.08% of their portfolio | 225.2k $34.8m | Added +82.0k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 215.1k $33.3m | Reduced -621 |
| DEARBORN PARTNERS LLC 1.59% of their portfolio | 213.7k $33.0m | Reduced -55.7k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.03% of their portfolio | 208.1k $31.7m | Reduced -51.6k |
| National Pension Service 0.03% of their portfolio | 205.3k $31.7m | Added +9.5k |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.13% of their portfolio | 203.6k $31.5m | Unchanged |
| CANADA LIFE ASSURANCE Co 0.06% of their portfolio | 202.7k $31.4m | Added +11.0k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.06% of their portfolio | 202.7k $31.3m | Added +1.4k |
| EXCHANGE TRADED CONCEPTS, LLC 0.56% of their portfolio | 202.1k $31.2m | Added +3.4k |
| MARSHALL WACE, LLP 0.04% of their portfolio | 188.6k $29.2m | Added +122.2k |
| CITIGROUP INC 0.02% of their portfolio | 185.5k $28.7m | Reduced -93.4k |
| M&G PLC 0.13% of their portfolio | 180.0k $27.9m | Reduced -22.4k |
| Aberdeen Group plc 0.05% of their portfolio | 176.2k $27.0m | Added +51.9k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 173.6k $26.8m | Added +2.6k |
| Janney Montgomery Scott LLC 0.07% of their portfolio | 167.6k $25.9m | Reduced -5.5k |
| Yaupon Capital Management LP 1.85% of their portfolio | 163.2k $25.2m | Added +32.6k |
| CRAMER ROSENTHAL MCGLYNN LLC 1.80% of their portfolio | 161.9k $25.0m | Reduced -35.6k |