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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
Atria Investments LLC10,493$1.81M0.02%−9,703−48.0%Reduced
Healthcare of Ontario Pension Plan Trust Fund10,436$1.80M0.00%+43+0.4%Added
Sequoia Financial Advisors, LLC10,364$1.79M0.01%−254−2.4%Reduced
Mirabella Financial Services LLP10,236$1.76M0.17%+10,236New
Summit Trail Advisors, LLC10,201$1.76M0.02%+108+1.1%Added
Ronald Blue Trust, Inc.10,192$1.76M0.02%−165−1.6%Reduced
Kentucky Retirement Systems10,103$1.74M0.04%+10,103New
Florida Financial Advisors, LLC9,957$1.72M0.29%+2,433+32.3%Added
Catalyst Funds Management Pty Ltd9,900$1.71M0.10%+9,900New
Wealthspire Advisors, LLC9,744$1.68M0.01%−160−1.6%Reduced
Cravens & Co Advisors, LLC9,703$1.67M1.12%+9,703New
Keybank National Association9,593$1.65M0.01%−305−3.1%Reduced
TCTC Holdings, LLC9,500$1.64M0.04%00.0%Unchanged
J. Safra Sarasin Holding AG9,425$1.62M0.02%+72+0.8%Added
Hartford Investment Management Co9,331$1.61M0.05%−207−2.2%Reduced
AMG National Trust Bank9,194$1.58M0.03%+26+0.3%Added
Croban9,135$1.57M0.69%+191+2.1%Added
Fruth Investment Management9,131$1.57M0.37%00.0%Unchanged
Pinebridge Investments LLC9,075$1.56M0.01%+1,137+14.3%Added
Agp Franklin, LLC8,979$1.55M0.67%+612+7.3%Added
Delta Financial Advisors LLC8,963$1.54M0.37%−155−1.7%Reduced
NovaPoint Capital, LLC8,563$1.48M0.31%+8,563New
Louisiana State Employees Retirement System8,500$1.46M0.02%+100+1.2%Added
Principal Securities, Inc.8,422$1.45M0.02%−287−3.3%Reduced
Kesler, Norman & Wride, LLC8,363$1.44M0.23%−865−9.4%Reduced
Empowered Funds, LLC8,349$1.44M0.01%+1,300+18.4%Added
New Mexico Educational Retirement Board8,200$1.41M0.04%+800+10.8%Added
Commerce Bank8,194$1.41M0.01%+312+4.0%Added
Omers Administration Corp8,136$1.40M0.01%+964+13.4%Added
Hartford Funds Management Co LLC8,133$1.40M0.11%+454+5.9%Added
Venturi Wealth Management, LLC8,114$1.40M0.05%+93+1.2%Added
Gsa Capital Partners LLP8,107$1.40M0.09%+6,597+436.9%Added
Citizens Financial Group Inc8,081$1.39M0.02%−17,792−68.8%Reduced
Alps Advisors Inc8,050$1.39M0.01%+8,050New
HB Wealth Management, LLC8,024$1.38M0.01%+1,853+30.0%Added
MAI Capital Management7,936$1.37M0.01%+3,799+91.8%Added
Wealthfront Advisers LLC7,927$1.37M0.00%−226−2.8%Reduced
Jacobi Capital Management LLC7,826$1.35M0.07%−39−0.5%Reduced
SlateStone Wealth, LLC7,675$1.32M0.10%+150+2.0%Added
Retirement Guys Formula LLC7,596$1.31M0.49%+558+7.9%Added
Icon Advisers Inc7,480$1.29M0.24%00.0%Unchanged
Los Angeles Capital Management LLC7,467$1.29M0.00%−12,845−63.2%Reduced
Anchor Investment Management, LLC7,372$1.27M0.10%−800−9.8%Reduced
Tokio Marine Asset Management Co Ltd7,369$1.27M0.04%+549+8.0%Added
Community Financial Services Group, LLC7,311$1.27M0.18%+29+0.4%Added
Kestra Advisory Services, LLC7,225$1.24M0.00%−9,500−56.8%Reduced
Acadian Asset Management LLC7,212$1.24M0.00%+7,212New
Callan Family Office, LLC7,185$1.24M0.02%−1,782−19.9%Reduced
Pinnacle Financial Partners, Inc.7,176$1.24M0.01%+65+0.9%Added
Lombard Odier Asset Management (Switzerland) SA7,100$1.22M0.04%+4,600+184.0%Added
Cantor Fitzgerald Investment Adviser L.P.7,034$1.21M0.08%+195+2.9%Added
Swedbank AB6,956$1.20M0.00%−35,199−83.5%Reduced
Spirit of America Management Corp6,950$1.20M0.23%+1,350+24.1%Added
Procyon Private Wealth Partners, LLC6,944$1.20M0.05%−119−1.7%Reduced
Brevan Howard Capital Management LP6,916$1.19M0.02%−1,122−14.0%Reduced
Prosperity Consulting Group, LLC6,849$1.18M0.04%+5,133+299.1%Added
Fisher Asset Management, LLC6,837$1.18M0.00%−1,337−16.4%Reduced
111 Capital6,809$1.17M0.20%+6,809New
Warren Averett Asset Management, LLC6,749$1.16M0.01%+1,581+30.6%Added
Goelzer Investment Management, Inc.6,742$1.16M0.05%+5+0.1%Added
Jefferies Financial Group Inc.6,741$1.16M0.01%+6,741New
Little House Capital LLC6,707$1.16M0.26%+49+0.7%Added
Jmac Enterprises LLC6,700$1.15M0.19%+400+6.3%Added
Teacher Retirement System of Texas6,642$1.14M0.00%+4,237+176.2%Added
Silver Lake Advisory, LLC6,613$1.14M0.41%+39+0.6%Added
Independent Advisor Alliance6,579$1.13M0.03%−109−1.6%Reduced
MUFG Securities EMEA plc6,533$1.13M0.01%−249−3.7%Reduced
LS Investment Advisors, LLC6,525$1.12M0.15%+6,525New
New Age Alpha Advisors, LLC6,479$1.12M0.05%+882+15.8%Added
Gallo Partners, LP6,432$1.11M2.46%−4,239−39.7%Reduced
Sivia Capital Partners, LLC6,351$1.09M0.13%+3,926+161.9%Added
Parallel Advisors, LLC6,329$1.09M0.02%−460−6.8%Reduced
Fieldview Capital Management, LLC6,290$1.08M0.31%+6,290New
Buckingham Strategic Partners6,273$1.08M0.01%+4,014+177.7%Added
Independence Bank of Kentucky6,249$1.08M0.12%−25−0.4%Reduced
Johnson Investment Counsel Inc6,221$1.07M0.01%−8,276−57.1%Reduced
Coastal Bridge Advisors, LLC6,210$1.07M0.07%−878−12.4%Reduced
Kingsview Wealth Management, LLC6,134$1.06M0.01%+798+15.0%Added
SBI Okasan Asset Management Co.Ltd.5,962$1.04M0.03%−3,932−39.7%Reduced
Inspire Advisors, LLC6,006$1.04M0.07%+1,919+47.0%Added
Bank Julius Baer & Co. Ltd, Zurich5,700$992.1K0.00%+555+10.8%Added
Tema ETFs LLC5,752$990.9K0.03%+435+8.2%Added
Jump Financial, LLC5,726$986.4K0.01%+5,726New
Horizon Investments, LLC5,575$960.4K0.01%+75+1.4%Added
SS&H Financial Advisors, Inc.5,500$947.0K0.24%+5,500New
United Capital Financial Advisers, LLC5,479$943.9K0.01%−337−5.8%Reduced
Targeted Financial Services LLC5,400$930.1K0.69%+379+7.5%Added
SageGuard Financial Group, LLC5,387$928.0K0.13%+30+0.6%Added
Bath Savings Trust Co5,365$924.2K0.10%00.0%Unchanged
Northwestern Mutual Investment Management Company, LLC5,352$922.0K0.01%+58+1.1%Added
Altus Wealth Group LLC5,261$906.3K0.33%−6−0.1%Reduced
Summit Global Investments5,255$905.0K0.05%−4,806−47.8%Reduced
Profund Advisors LLC5,226$900.3K0.02%−419−7.4%Reduced
Bokf, NA5,163$889.4K0.01%+32+0.6%Added
De Burlo Group Inc5,135$884.6K0.16%00.0%Unchanged
Coldstream Capital Management Inc5,071$873.6K0.01%+717+16.5%Added
Tiaa-Cref Individual & Institutional Services, LLC5,069$873.2K0.00%−13−0.3%Reduced
Braun Stacey Associates Inc5,057$871.2K0.02%00.0%Unchanged
MUFG Securities Americas Inc.5,028$866.2K0.04%+450+9.8%Added
Calton & Associates, Inc.5,022$865.2K0.13%+5,022New