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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
Tokio Marine Asset Management Co Ltd7,369$1.27M0.04%+549+8.0%Added
Anchor Investment Management, LLC7,372$1.27M0.10%−800−9.8%Reduced
Los Angeles Capital Management LLC7,467$1.29M0.00%−12,845−63.2%Reduced
Icon Advisers Inc7,480$1.29M0.24%00.0%Unchanged
Retirement Guys Formula LLC7,596$1.31M0.49%+558+7.9%Added
SlateStone Wealth, LLC7,675$1.32M0.10%+150+2.0%Added
Jacobi Capital Management LLC7,826$1.35M0.07%−39−0.5%Reduced
Wealthfront Advisers LLC7,927$1.37M0.00%−226−2.8%Reduced
MAI Capital Management7,936$1.37M0.01%+3,799+91.8%Added
HB Wealth Management, LLC8,024$1.38M0.01%+1,853+30.0%Added
Alps Advisors Inc8,050$1.39M0.01%+8,050New
Citizens Financial Group Inc8,081$1.39M0.02%−17,792−68.8%Reduced
Gsa Capital Partners LLP8,107$1.40M0.09%+6,597+436.9%Added
Venturi Wealth Management, LLC8,114$1.40M0.05%+93+1.2%Added
Hartford Funds Management Co LLC8,133$1.40M0.11%+454+5.9%Added
Omers Administration Corp8,136$1.40M0.01%+964+13.4%Added
Commerce Bank8,194$1.41M0.01%+312+4.0%Added
New Mexico Educational Retirement Board8,200$1.41M0.04%+800+10.8%Added
Empowered Funds, LLC8,349$1.44M0.01%+1,300+18.4%Added
Kesler, Norman & Wride, LLC8,363$1.44M0.23%−865−9.4%Reduced
Principal Securities, Inc.8,422$1.45M0.02%−287−3.3%Reduced
Louisiana State Employees Retirement System8,500$1.46M0.02%+100+1.2%Added
NovaPoint Capital, LLC8,563$1.48M0.31%+8,563New
Delta Financial Advisors LLC8,963$1.54M0.37%−155−1.7%Reduced
Agp Franklin, LLC8,979$1.55M0.67%+612+7.3%Added
Pinebridge Investments LLC9,075$1.56M0.01%+1,137+14.3%Added
Fruth Investment Management9,131$1.57M0.37%00.0%Unchanged
Croban9,135$1.57M0.69%+191+2.1%Added
AMG National Trust Bank9,194$1.58M0.03%+26+0.3%Added
Hartford Investment Management Co9,331$1.61M0.05%−207−2.2%Reduced
J. Safra Sarasin Holding AG9,425$1.62M0.02%+72+0.8%Added
TCTC Holdings, LLC9,500$1.64M0.04%00.0%Unchanged
Keybank National Association9,593$1.65M0.01%−305−3.1%Reduced
Cravens & Co Advisors, LLC9,703$1.67M1.12%+9,703New
Wealthspire Advisors, LLC9,744$1.68M0.01%−160−1.6%Reduced
Catalyst Funds Management Pty Ltd9,900$1.71M0.10%+9,900New
Florida Financial Advisors, LLC9,957$1.72M0.29%+2,433+32.3%Added
Kentucky Retirement Systems10,103$1.74M0.04%+10,103New
Ronald Blue Trust, Inc.10,192$1.76M0.02%−165−1.6%Reduced
Summit Trail Advisors, LLC10,201$1.76M0.02%+108+1.1%Added
Mirabella Financial Services LLP10,236$1.76M0.17%+10,236New
Sequoia Financial Advisors, LLC10,364$1.79M0.01%−254−2.4%Reduced
Healthcare of Ontario Pension Plan Trust Fund10,436$1.80M0.00%+43+0.4%Added
Atria Investments LLC10,493$1.81M0.02%−9,703−48.0%Reduced
Norinchukin Bank, The10,499$1.81M0.02%−422−3.9%Reduced
Jain Global LLC10,516$1.81M0.02%+10,516New
Investment Management Corp of Ontario10,529$1.81M0.02%−1,000−8.7%Reduced
Advisors Asset Management, Inc.10,709$1.84M0.03%−475−4.2%Reduced
D.A. Davidson & Co.11,217$1.93M0.01%00.0%Unchanged
Axq Capital, LP11,224$1.93M0.21%+11,224New
Cannon Advisors, Inc.10,879$1.94M1.18%+10,879New
Lido Advisors, LLC11,412$1.97M0.01%+1,826+19.0%Added
Nicholson Wealth Management Group, LLC11,414$1.97M1.16%−272−2.3%Reduced
Ameritas Investment Partners, Inc.11,486$1.98M0.05%−134−1.2%Reduced
Saudi Central Bank11,581$2.00M0.03%+5,611+94.0%Added
Concurrent Investment Advisors, LLC11,607$2.00M0.02%−495−4.1%Reduced
BFSG, LLC11,831$2.04M0.18%+315+2.7%Added
Mitsubishi UFJ Asset Management (UK) Ltd.12,000$2.07M0.96%00.0%Unchanged
Aigen Investment Management, LP12,034$2.07M0.57%+8,158+210.5%Added
Park Avenue Securities LLC12,044$2.08M0.01%−1,103−8.4%Reduced
Fox Run Management, L.L.C.12,093$2.08M0.35%+12,093New
Boothbay Fund Management, LLC12,127$2.09M0.04%+9,279+325.8%Added
US Bancorp12,295$2.12M0.00%+2,214+22.0%Added
Gulf International Bank (UK) Ltd12,323$2.12M0.04%−266−2.1%Reduced
Pacer Advisors, Inc.12,375$2.13M0.01%−2,703−17.9%Reduced
DC Investments Management, LLC12,438$2.14M0.73%00.0%Unchanged
Whittier Trust Co12,327$2.14M0.02%−865−6.6%Reduced
Excelsior Advisor Network LLC12,492$2.15M0.28%+9,477+314.3%Added
Apollon Wealth Management, LLC12,545$2.16M0.03%−1,057−7.8%Reduced
Dark Forest Capital Management LP12,556$2.16M0.14%−4,143−24.8%Reduced
AG2R la Mondiale Gestion D'Actifs12,743$2.20M0.08%+904+7.6%Added
Credit Agricole S A12,840$2.21M0.01%−260−2.0%Reduced
Buckhead Capital Management LLC13,004$2.24M0.77%+6,355+95.6%Added
Mizuho Securities USA LLC13,068$2.25M0.04%+3,066+30.7%Added
Private Advisor Group, LLC13,104$2.26M0.01%+515+4.1%Added
Trustmark National Bank Trust Department13,192$2.27M0.14%−94−0.7%Reduced
Thrivent Financial for Lutherans13,415$2.32M0.00%+153+1.2%Added
Delta Global Management LP13,496$2.32M0.25%−65−0.5%Reduced
First National Advisers, LLC13,769$2.37M0.33%−1,044−7.0%Reduced
LRT Capital Management, LLC13,798$2.38M1.54%+13,798New
Dean Capital Management13,871$2.39M0.87%00.0%Unchanged
Trust Co of Vermont13,948$2.40M0.09%+13,948New
RD Lewis Holdings, Inc.14,314$2.41M1.79%+940+7.0%Added
Cordatus Wealth Management LLC14,111$2.43M0.53%+86+0.6%Added
O'Shaughnessy Asset Management, LLC14,145$2.44M0.01%−9,582−40.4%Reduced
Town & Country Bank & Trust CO dba First Bankers Trust CO14,200$2.45M0.76%+811+6.1%Added
Blair William & Co14,214$2.45M0.01%+7,927+126.1%Added
First National Bank of Omaha14,294$2.46M0.07%−1,412−9.0%Reduced
Jupiter Topco LLC14,521$2.50M0.00%+14,521New
BKD Wealth Advisors, LLC14,580$2.51M0.04%+11,586+387.0%Added
Abn Amro Investment Solutions14,660$2.53M0.02%−15,026−50.6%Reduced
AE Wealth Management LLC14,841$2.56M0.01%+589+4.1%Added
Nomura Holdings Inc14,917$2.57M0.01%+693+4.9%Added
Nordea Investment Management AB14,842$2.58M0.00%+5,411+57.4%Added
Prudential PLC14,975$2.58M0.02%00.0%Unchanged
Chicago Partners Investment Group LLC14,611$2.60M0.05%+6,489+79.9%Added
Phillips Financial Management, LLC15,167$2.61M0.19%−60.0%Reduced
Ilex Capital Partners (UK) LLP15,218$2.62M0.05%+15,218New
Raiffeisen Bank International AG15,040$2.63M0.03%−62−0.4%Reduced
SRS Capital Advisors, Inc.15,304$2.64M0.02%+4,203+37.9%Added