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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 2026

Institutional positions in Atmos Energy Corp as of Mar 31, 2026. 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
1,020
+57 vs. Q4 2025
Shares held
160.0M
+21.2M (+15.3%) vs. Q4 2025
Total value
$29.6B
+$6.29B (+27.0%) vs. Q4 2025
New holders
142
409 more added
Sold out
85
305 more reduced

17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: new holders, sold out and not filed yet

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 2026: 1,020 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 2026: $29.6B
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 2026

Shares, value and share of portfolio for each institution holding Atmos Energy Corp; share changes are against Q4 2025.

Institutions holding ATO in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Kestra Advisory Services, LLC16,725$3.09M0.01%+10,461+167.0%Added
Dark Forest Capital Management LP16,699$3.08M0.27%−2,152−11.4%Reduced
Reaves W H & Co Inc16,660$3.08M0.05%−18−0.1%Reduced
Vident Advisory, LLC16,653$3.08M0.03%+3,309+24.8%Added
State of Alaska, Department of Revenue16,650$3.08M0.03%+695+4.4%Added
Azzad Asset Management Inc16,610$3.07M0.31%−458−2.7%Reduced
Colony Group, LLC16,516$3.05M0.00%+8,115+96.6%Added
Kentucky Trust Co16,374$3.02M1.59%−20−0.1%Reduced
Vestmark Advisory Solutions, Inc.16,344$3.02M0.03%+4,618+39.4%Added
OP Asset Management Ltd16,230$3.00M0.03%−715−4.2%Reduced
Toroso Investments, LLC16,178$2.99M0.01%+13,328+467.6%Added
Hancock Whitney Corp15,718$2.99M0.05%−184−1.2%Reduced
Allianz SE15,985$2.95M0.03%00.0%Unchanged
Allstate Corp15,738$2.91M0.03%+3,642+30.1%Added
First National Bank of Omaha15,706$2.90M0.09%+2,496+18.9%Added
Trexquant Investment LP15,542$2.87M0.02%−3,427−18.1%Reduced
Phillips Financial Management, LLC15,173$2.80M0.20%+70.0%Added
Raiffeisen Bank International AG15,102$2.79M0.04%+4,770+46.2%Added
Generali Asset Management SPA SGR15,114$2.79M0.06%+697+4.8%Added
Pacer Advisors, Inc.15,078$2.79M0.01%−4,090−21.3%Reduced
Danske Bank A/S15,005$2.77M0.01%+1,600+11.9%Added
Prudential PLC14,975$2.77M0.02%+14,975New
First National Advisers, LLC14,813$2.74M0.40%+381+2.6%Added
PDT Partners, LLC14,560$2.69M0.16%+6,919+90.6%Added
Janus Henderson Group PLC14,521$2.68M0.00%+6,624+83.9%Added
Johnson Investment Counsel Inc14,497$2.68M0.02%+204+1.4%Added
AE Wealth Management LLC14,252$2.63M0.01%+3,986+38.8%Added
Nomura Holdings Inc14,224$2.63M0.02%+11,543+430.5%Added
Cordatus Wealth Management LLC14,025$2.59M0.62%+371+2.7%Added
RD Lewis Holdings, Inc.13,374$2.57M2.23%−465−3.4%Reduced
Dean Capital Management13,871$2.56M1.06%−20.0%Reduced
Entropy Technologies, LP13,847$2.56M0.12%+13,847New
Rockefeller Capital Management L.P.13,833$2.56M0.00%−790−5.4%Reduced
Brendel Financial Advisors LLC13,644$2.52M1.25%+13,644New
Apollon Wealth Management, LLC13,602$2.51M0.04%−308−2.2%Reduced
Delta Global Management LP13,561$2.50M0.21%+13,561New
Whittier Trust Co13,192$2.48M0.03%−468−3.4%Reduced
Town & Country Bank & Trust CO dba First Bankers Trust CO13,389$2.47M0.84%+648+5.1%Added
Rafferty Asset Management, LLC13,388$2.47M0.01%−4,288−24.3%Reduced
Trustmark National Bank Trust Department13,286$2.45M0.16%+8+0.1%Added
Thrivent Financial for Lutherans13,262$2.45M0.00%+6,876+107.7%Added
Park Avenue Securities LLC13,147$2.43M0.02%+13,147New
Credit Agricole S A13,100$2.42M0.01%−100−0.8%Reduced
Bleakley Financial Group, LLC13,029$2.41M0.04%+1,922+17.3%Added
Private Advisor Group, LLC12,589$2.33M0.01%+440+3.6%Added
Gulf International Bank (UK) Ltd12,589$2.33M0.05%+4,064+47.7%Added
Albert D Mason Inc12,504$2.31M1.50%+179+1.5%Added
DC Investments Management, LLC12,438$2.30M0.88%00.0%Unchanged
Banque Pictet & Cie SA12,314$2.27M0.03%+12,314New
Concurrent Investment Advisors, LLC12,102$2.24M0.02%+3,354+38.3%Added
Mitsubishi UFJ Asset Management (UK) Ltd.12,000$2.22M1.15%00.0%Unchanged
AG2R la Mondiale Gestion D'Actifs11,839$2.19M0.10%+3,229+37.5%Added
Jane Street Group, LLC11,810$2.18M0.00%+2,146+22.2%Added
Nicholson Wealth Management Group, LLC11,686$2.16M1.26%+199+1.7%Added
Ameritas Investment Partners, Inc.11,620$2.15M0.07%+559+5.1%Added
Investment Management Corp of Ontario11,529$2.13M0.03%+600+5.5%Added
BFSG, LLC11,516$2.13M0.20%−105−0.9%Reduced
D.A. Davidson & Co.11,217$2.07M0.01%+112+1.0%Added
Advisors Asset Management, Inc.11,184$2.07M0.03%−2,329−17.2%Reduced
SRS Capital Advisors, Inc.11,101$2.05M0.06%+9,777+738.4%Added
Beacon Pointe Advisors, LLC11,025$2.04M0.01%+8,071+273.2%Added
Norinchukin Bank, The10,921$2.02M0.02%+352+3.3%Added
Gallo Partners, LP10,671$1.97M3.77%+10,671New
Sequoia Financial Advisors, LLC10,618$1.96M0.01%−1,369−11.4%Reduced
Schonfeld Strategic Advisors LLC10,480$1.94M0.02%+10,480New
Healthcare of Ontario Pension Plan Trust Fund10,393$1.92M0.00%+4,048+63.8%Added
Ronald Blue Trust, Inc.10,357$1.91M0.02%−1,152−10.0%Reduced
Summit Trail Advisors, LLC10,093$1.86M0.03%+1,867+22.7%Added
US Bancorp10,081$1.86M0.00%+1,011+11.1%Added
Summit Global Investments10,061$1.86M0.11%−13,818−57.9%Reduced
Mizuho Securities USA LLC10,002$1.85M0.04%−1,686−14.4%Reduced
SBI Okasan Asset Management Co.Ltd.9,894$1.83M0.08%+294+3.1%Added
Wealthspire Advisors, LLC9,904$1.83M0.01%−495−4.8%Reduced
Keybank National Association9,898$1.83M0.01%−465−4.5%Reduced
Lido Advisors, LLC9,586$1.77M0.01%−1,551−13.9%Reduced
Hartford Investment Management Co9,538$1.76M0.06%+197+2.1%Added
TCTC Holdings, LLC9,500$1.75M0.05%00.0%Unchanged
GWM Advisors LLC9,452$1.75M0.01%−942−9.1%Reduced
Nordea Investment Management AB9,431$1.73M0.00%+25+0.3%Added
Tyche Wealth Partners LLC9,359$1.73M0.27%−42−0.4%Reduced
J. Safra Sarasin Holding AG9,353$1.73M0.03%−4,439−32.2%Reduced
Board of the Pension Protection Fund9,300$1.72M1.58%+8,900+2,225.0%Added
Kesler, Norman & Wride, LLC9,228$1.70M0.29%−101−1.1%Reduced
AMG National Trust Bank9,168$1.69M0.04%00.0%Unchanged
Fruth Investment Management9,131$1.69M0.42%−50−0.5%Reduced
Delta Financial Advisors LLC9,118$1.68M0.44%−96−1.0%Reduced
Callan Family Office, LLC8,967$1.66M0.04%−742−7.6%Reduced
Croban8,944$1.65M0.78%+65+0.7%Added
Quadrature Capital Ltd8,738$1.61M0.02%+8,738New
Principal Securities, Inc.8,709$1.61M0.02%+2,276+35.4%Added
Aquatic Capital Management LLC8,649$1.60M0.05%−21,100−70.9%Reduced
Metis Global Partners, LLC8,485$1.57M0.04%−959−10.2%Reduced
Kovack Advisors, Inc.8,465$1.56M0.08%−209−2.4%Reduced
Louisiana State Employees Retirement System8,400$1.55M0.03%+200+2.4%Added
Agp Franklin, LLC8,367$1.55M0.77%−2,955−26.1%Reduced
Hennion & Walsh Asset Management, Inc.8,196$1.51M0.05%+6,635+425.0%Added
Fisher Asset Management, LLC8,174$1.51M0.00%+140+1.7%Added
Anchor Investment Management, LLC8,172$1.51M0.13%00.0%Unchanged
Wealthfront Advisers LLC8,153$1.51M0.00%+65+0.8%Added
Brevan Howard Capital Management LP8,038$1.48M0.02%+8,038New