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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, Q2 2026

Institutional positions in Atmos Energy Corp as of Jun 30, 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
1,044
+36 vs. Q1 2026
Shares held
162.7M
+2.70M (+1.7%) vs. Q1 2026
Total value
$28.0B
−$1.52B (−5.1%) vs. Q1 2026
New holders
132
416 more added
Sold out
96
344 more reduced

12 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 holdersQ2 2026: 1,044 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 heldQ2 2026: $28.0B
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, Q2 2026

Shares, value and share of portfolio for each institution holding Atmos Energy Corp; share changes are against Q1 2026.

Institutions holding ATO in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Sumitomo Mitsui DS Asset Management Company, Ltd21,644$3.73M0.03%+76+0.4%Added
Elo Mutual Pension Insurance Co21,511$3.71M0.05%−5,101−19.2%Reduced
Ethic Inc.21,483$3.70M0.05%−3,211−13.0%Reduced
Qsemble Capital Management, LP21,472$3.70M0.47%+21,472New
Moran Wealth Management, LLC21,216$3.65M0.10%−493−2.3%Reduced
Glenmede Trust Co NA21,130$3.64M0.02%+183+0.9%Added
Y-Intercept (Hong Kong) Ltd20,907$3.60M0.07%+20,907New
Brinker Capital Investments, LLC20,849$3.59M0.03%+3,324+19.0%Added
Vestcor Inc20,810$3.58M0.09%+14,851+249.2%Added
Oregon Public Employees Retirement Fund20,565$3.54M0.04%+1,600+8.4%Added
Commonwealth Equity Services, LLC20,043$3.45M0.00%−1,073−5.1%Reduced
Orion Investment Co20,034$3.45M1.01%+1,133+6.0%Added
Cambiar Investors LLC19,440$3.35M0.15%−895−4.4%Reduced
Crossmark Global Holdings, Inc.19,258$3.32M0.04%+783+4.2%Added
Bleakley Financial Group, LLC19,155$3.30M0.04%+6,126+47.0%Added
Fuller & Thaler Asset Management, Inc.19,081$3.29M0.01%−87−0.5%Reduced
SummitTX Capital, L.P.19,031$3.28M0.09%+19,031New
Ausbil Investment Management Ltd18,860$3.26M1.48%−2,657−12.3%Reduced
Capital International Sarl18,887$3.25M0.05%00.0%Unchanged
UniSuper Management Pty Ltd18,885$3.25M0.02%+1,725+10.1%Added
Vestmark Advisory Solutions, Inc.18,670$3.22M0.03%+2,326+14.2%Added
Rafferty Asset Management, LLC18,436$3.18M0.01%+5,048+37.7%Added
Legacy Financial Strategies, LLC18,181$3.13M0.49%−1,286−6.6%Reduced
Danske Bank A/S17,705$3.05M0.01%+2,700+18.0%Added
Vident Advisory, LLC17,378$2.99M0.02%+725+4.4%Added
ISAM Funds (UK) Ltd17,300$2.98M2.10%+17,300New
OP Asset Management Ltd17,253$2.97M0.03%+1,023+6.3%Added
Prospera Financial Services Inc17,117$2.95M0.04%−999−5.5%Reduced
Fideuram Asset Management (Ireland) dac17,259$2.95M0.06%+16,936+5,243.3%Added
Obermeyer Wood Investment Counsel, LLLP16,803$2.89M0.12%−529−3.1%Reduced
PDT Partners, LLC16,460$2.84M0.15%+1,900+13.0%Added
Albert D Mason Inc16,403$2.83M1.61%+3,899+31.2%Added
State of Alaska, Department of Revenue16,356$2.82M0.03%−294−1.8%Reduced
Allstate Corp16,282$2.80M0.03%+544+3.5%Added
Kentucky Trust Co16,224$2.79M1.34%−150−0.9%Reduced
Allianz SE15,985$2.75M0.03%00.0%Unchanged
Machina Capital S.A.S.15,820$2.73M0.43%+15,820New
Reaves W H & Co Inc15,795$2.72M0.04%−865−5.2%Reduced
Integrated Wealth Concepts LLC15,788$2.72M0.02%+7,760+96.7%Added
Generali Asset Management SPA SGR15,591$2.69M0.05%+477+3.2%Added
Hennion & Walsh Asset Management, Inc.15,561$2.68M0.08%+7,365+89.9%Added
Rockefeller Capital Management L.P.15,517$2.67M0.00%+1,684+12.2%Added
Hancock Whitney Corp15,481$2.67M0.04%−237−1.5%Reduced
GWM Advisors LLC15,376$2.65M0.01%+5,924+62.7%Added
SRS Capital Advisors, Inc.15,304$2.64M0.02%+4,203+37.9%Added
Raiffeisen Bank International AG15,040$2.63M0.03%−62−0.4%Reduced
Ilex Capital Partners (UK) LLP15,218$2.62M0.05%+15,218New
Phillips Financial Management, LLC15,167$2.61M0.19%−60.0%Reduced
Chicago Partners Investment Group LLC14,611$2.60M0.05%+6,489+79.9%Added
Prudential PLC14,975$2.58M0.02%00.0%Unchanged
Nordea Investment Management AB14,842$2.58M0.00%+5,411+57.4%Added
Nomura Holdings Inc14,917$2.57M0.01%+693+4.9%Added
AE Wealth Management LLC14,841$2.56M0.01%+589+4.1%Added
Abn Amro Investment Solutions14,660$2.53M0.02%−15,026−50.6%Reduced
BKD Wealth Advisors, LLC14,580$2.51M0.04%+11,586+387.0%Added
Jupiter Topco LLC14,521$2.50M0.00%+14,521New
First National Bank of Omaha14,294$2.46M0.07%−1,412−9.0%Reduced
Blair William & Co14,214$2.45M0.01%+7,927+126.1%Added
Town & Country Bank & Trust CO dba First Bankers Trust CO14,200$2.45M0.76%+811+6.1%Added
O'Shaughnessy Asset Management, LLC14,145$2.44M0.01%−9,582−40.4%Reduced
Cordatus Wealth Management LLC14,111$2.43M0.53%+86+0.6%Added
RD Lewis Holdings, Inc.14,314$2.41M1.79%+940+7.0%Added
Trust Co of Vermont13,948$2.40M0.09%+13,948New
Dean Capital Management13,871$2.39M0.87%00.0%Unchanged
LRT Capital Management, LLC13,798$2.38M1.54%+13,798New
First National Advisers, LLC13,769$2.37M0.33%−1,044−7.0%Reduced
Delta Global Management LP13,496$2.32M0.25%−65−0.5%Reduced
Thrivent Financial for Lutherans13,415$2.32M0.00%+153+1.2%Added
Trustmark National Bank Trust Department13,192$2.27M0.14%−94−0.7%Reduced
Private Advisor Group, LLC13,104$2.26M0.01%+515+4.1%Added
Mizuho Securities USA LLC13,068$2.25M0.04%+3,066+30.7%Added
Buckhead Capital Management LLC13,004$2.24M0.77%+6,355+95.6%Added
Credit Agricole S A12,840$2.21M0.01%−260−2.0%Reduced
AG2R la Mondiale Gestion D'Actifs12,743$2.20M0.08%+904+7.6%Added
Dark Forest Capital Management LP12,556$2.16M0.14%−4,143−24.8%Reduced
Apollon Wealth Management, LLC12,545$2.16M0.03%−1,057−7.8%Reduced
Excelsior Advisor Network LLC12,492$2.15M0.28%+9,477+314.3%Added
Whittier Trust Co12,327$2.14M0.02%−865−6.6%Reduced
DC Investments Management, LLC12,438$2.14M0.73%00.0%Unchanged
Pacer Advisors, Inc.12,375$2.13M0.01%−2,703−17.9%Reduced
Gulf International Bank (UK) Ltd12,323$2.12M0.04%−266−2.1%Reduced
US Bancorp12,295$2.12M0.00%+2,214+22.0%Added
Boothbay Fund Management, LLC12,127$2.09M0.04%+9,279+325.8%Added
Fox Run Management, L.L.C.12,093$2.08M0.35%+12,093New
Park Avenue Securities LLC12,044$2.08M0.01%−1,103−8.4%Reduced
Aigen Investment Management, LP12,034$2.07M0.57%+8,158+210.5%Added
Mitsubishi UFJ Asset Management (UK) Ltd.12,000$2.07M0.96%00.0%Unchanged
BFSG, LLC11,831$2.04M0.18%+315+2.7%Added
Concurrent Investment Advisors, LLC11,607$2.00M0.02%−495−4.1%Reduced
Saudi Central Bank11,581$2.00M0.03%+5,611+94.0%Added
Ameritas Investment Partners, Inc.11,486$1.98M0.05%−134−1.2%Reduced
Nicholson Wealth Management Group, LLC11,414$1.97M1.16%−272−2.3%Reduced
Lido Advisors, LLC11,412$1.97M0.01%+1,826+19.0%Added
Cannon Advisors, Inc.10,879$1.94M1.18%+10,879New
Axq Capital, LP11,224$1.93M0.21%+11,224New
D.A. Davidson & Co.11,217$1.93M0.01%00.0%Unchanged
Advisors Asset Management, Inc.10,709$1.84M0.03%−475−4.2%Reduced
Investment Management Corp of Ontario10,529$1.81M0.02%−1,000−8.7%Reduced
Jain Global LLC10,516$1.81M0.02%+10,516New
Norinchukin Bank, The10,499$1.81M0.02%−422−3.9%Reduced