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Atmos Energy Corp

ATO
Exchange
NYSE
Industry
Natural Gas Distribution
SEC CIK
0000731802

In the last 90 days, Atmos Energy Corp insiders filed 1 open-market purchase and 0 sales; 1,044 institutions reported holding it in 13F filings for Q2 2026, worth $28.0B in total; no superinvestor holds it.

13F holders, Q1 2021

Institutional positions in Atmos Energy Corp as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
550
No complete 13F data for Q4 2020
Shares held
108.2M
No complete 13F data for Q4 2020
Total value
$10.7B
No complete 13F data for Q4 2020

Holders and value by quarter

Institutions reporting ATO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2021: 550 institutions
Q1 2021: 550 institutionsQ2 2021: 548 institutionsQ3 2021: 536 institutionsQ4 2021: 575 institutionsQ1 2022: 608 institutionsQ2 2022: 620 institutionsQ3 2022: 631 institutionsQ4 2022: 663 institutionsQ1 2023: 664 institutionsQ2 2023: 672 institutionsQ3 2023: 669 institutionsQ4 2023: 722 institutionsQ1 2024: 731 institutionsQ2 2024: 736 institutionsQ3 2024: 758 institutionsQ4 2024: 818 institutionsQ1 2025: 861 institutionsQ2 2025: 871 institutionsQ3 2025: 912 institutionsQ4 2025: 980 institutionsQ1 2026: 1,020 institutionsQ2 2026: 1,044 institutions
Value heldQ1 2021: $10.7B
Q1 2021: $10.7BQ2 2021: $10.5BQ3 2021: $9.93BQ4 2021: $12.4BQ1 2022: $14.9BQ2 2022: $14.2BQ3 2022: $13.1BQ4 2022: $14.6BQ1 2023: $14.7BQ2 2023: $15.8BQ3 2023: $14.4BQ4 2023: $15.8BQ1 2024: $16.6BQ2 2024: $16.7BQ3 2024: $20.8BQ4 2024: $21.8BQ1 2025: $24.4BQ2 2025: $24.7BQ3 2025: $27.2BQ4 2025: $27.2BQ1 2026: $29.6BQ2 2026: $28.0B
Institutions holding ATO and their total value by quarter
QuarterHoldersValue
Q2 20261,044$28.0B
Q1 20261,020$29.6B
Q4 2025980$27.2B
Q3 2025912$27.2B
Q2 2025871$24.7B
Q1 2025861$24.4B
Q4 2024818$21.8B
Q3 2024758$20.8B
Q2 2024736$16.7B
Q1 2024731$16.6B
Q4 2023722$15.8B
Q3 2023669$14.4B
Q2 2023672$15.8B
Q1 2023664$14.7B
Q4 2022663$14.6B
Q3 2022631$13.1B
Q2 2022620$14.2B
Q1 2022608$14.9B
Q4 2021575$12.4B
Q3 2021536$9.93B
Q2 2021548$10.5B
Q1 2021550$10.7B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Atmos Energy Corp.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding ATO in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Arizona State Retirement System36,297$3.59M0.03%––
Quantitative Systematic Strategies LLC38,390$3.79M0.59%––
American International Group, Inc.39,437$3.90M0.02%––
LPL Financial LLC39,567$3.91M0.00%––
LS Investment Advisors, LLC40,209$3.98M0.22%––
Aviva PLC42,565$4.21M0.02%––
Holocene Advisors, LP43,164$4.27M0.03%––
Shell Asset Management Co43,426$4.29M0.09%––
Panagora Asset Management Inc44,209$4.37M0.02%––
Mattern Capital Management, LLC44,360$4.38M0.95%––
Acadian Asset Management LLC44,973$4.45M0.02%––
Coann Capital LLC45,801$4.53M3.85%––
Redpoint Investment Management Pty Ltd45,821$4.53M0.38%––
Natixis Advisors, L.P.45,996$4.55M0.02%––
First National Bank of Omaha46,744$4.62M0.24%––
BCM Advisors, LLC45,449$4.70M1.42%––
Retirement Systems of Alabama47,803$4.72M0.02%––
Royal London Asset Management Ltd48,076$4.75M0.02%––
Treasurer of the State of North Carolina48,524$4.80M0.03%––
Cambridge Trust Co50,935$5.04M0.21%––
State of Michigan Retirement System51,137$5.05M0.03%––
Voya Investment Management LLC51,370$5.08M0.01%––
Nisa Investment Advisors, LLC51,580$5.10M0.03%––
44 Wealth Management LLC52,964$5.24M2.19%––
Teacher Retirement System of Texas54,027$5.34M0.03%––
Natixis54,557$5.39M0.02%––
Susquehanna International Group, LLP54,791$5.42M0.01%––
Toronto Dominion Bank57,272$5.66M0.01%––
State of New Jersey Common Pension Fund D60,047$5.94M0.02%––
State of Alaska, Department of Revenue60,124$5.94M0.06%––
Raymond James Financial Services Advisors, Inc.60,533$5.98M0.01%––
Standard Life Aberdeen plc62,485$6.18M0.01%––
Commonwealth of Pennsylvania Public School Empls Retrmt Sys62,998$6.23M0.08%––
Northwest & Ethical Investments L.P.66,412$6.56M0.23%––
Public Employees Retirement System of Ohio67,455$6.67M0.03%––
Virginia Retirement Systems Et Al67,700$6.69M0.07%––
Ameriprise Financial Inc71,601$7.08M0.00%––
Nomura Asset Management Co Ltd72,909$7.21M0.05%––
Guggenheim Capital LLC76,369$7.55M0.05%––
Smith Asset Management Group LP82,830$8.19M0.43%––
Stifel Financial Corp86,063$8.51M0.01%––
Cambiar Investors LLC88,068$8.71M0.30%––
Raymond James & Associates89,679$8.87M0.01%––
UBS Group AG93,960$9.29M0.00%––
Candriam Luxembourg S.C.A.102,039$9.35M0.08%––
Royal Bank of Canada94,745$9.37M0.00%––
Mather Group, LLC.101,108$9.99M0.28%––
BNP Paribas Arbitrage, SA103,383$10.2M0.02%––
Victory Capital Management Inc104,948$10.4M0.01%––
Gabelli Funds LLC105,800$10.5M0.07%––
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.115,209$11.4M0.07%––
Gradient Investments LLC116,504$11.5M0.37%––
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main116,859$11.6M0.02%––
Janus Henderson Group PLC117,092$11.6M0.01%––
New York State Teachers Retirement System118,032$11.7M0.03%––
Marshall Wace, LLP121,633$12.0M0.06%––
Chevy Chase Trust Holdings, Inc.122,504$12.1M0.04%––
Citigroup Inc124,480$12.3M0.01%––
Manufacturers Life Insurance Company, The135,308$13.4M0.01%––
SEI Investments Co136,946$13.5M0.03%––
HSBC Holdings PLC136,723$13.5M0.02%––
Lazard Asset Management LLC137,579$13.6M0.02%––
Westpac Banking Corp139,721$13.8M0.15%––
Bank of Montreal140,561$13.8M0.01%––
Adage Capital Partners GP, L.L.C.140,104$13.8M0.03%––
Eaton Vance Management140,621$13.9M0.02%––
Great West Life Assurance Co146,753$14.4M0.04%––
Snyder Capital Management L P147,855$14.6M0.42%––
Cramer Rosenthal McGlynn LLC153,022$15.1M0.50%––
Principal Financial Group Inc155,245$15.3M0.01%––
Asset Management One Co.,Ltd.158,832$15.7M0.06%––
State of Wisconsin Investment Board161,720$16.0M0.03%––
Prudential Financial Inc162,517$16.1M0.02%––
State Board of Administration of Florida Retirement System162,579$16.1M0.03%––
M&G Investment Management Ltd167,620$16.6M0.14%––
Public Employees Retirement Association of Colorado168,204$16.6M0.08%––
Barclays PLC170,066$16.8M0.02%––
Bahl & Gaynor Inc170,709$16.9M0.11%––
Alliancebernstein L.P.181,580$17.9M0.01%––
Earnest Partners LLC184,113$18.2M0.11%––
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund184,375$18.2M0.17%––
Tortoise Index Solutions, LLC189,423$18.7M4.50%––
NN Investment Partners Holdings N.V.194,340$19.2M0.11%––
Vident Investment Advisory, LLC194,979$19.3M0.65%––
Rhumbline Advisers198,485$19.6M0.03%––
AXA S.A.211,315$20.9M0.06%––
Neuberger Berman Group LLC229,257$22.6M0.02%––
Millennium Management LLC228,742$22.6M0.03%––
New York State Common Retirement Fund237,100$23.4M0.03%––
Russell Investments Group, Ltd.249,037$24.6M0.04%––
DekaBank Deutsche Girozentrale262,398$25.7M0.09%––
Hennessy Advisors Inc267,286$26.4M1.54%––
Nuveen Asset Management, LLC274,982$27.2M0.01%––
California State Teachers Retirement System283,756$28.0M0.04%––
AQR Capital Management LLC287,054$28.2M0.05%––
Franklin Resources Inc297,242$29.4M0.01%––
Reaves W H & Co Inc325,456$32.2M1.12%––
Public Sector Pension Investment Board347,620$34.4M0.23%––
Maple-Brown Abbott Ltd369,230$36.5M2.05%––
Macquarie Group Ltd375,541$37.1M0.05%––