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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, Q4 2025

Institutional positions in Atmos Energy Corp as of Dec 31, 2025. 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
980
+81 vs. Q3 2025
Shares held
162.1M
+2.64M (+1.7%) vs. Q3 2025
Total value
$27.2B
−$53.9M (−0.2%) vs. Q3 2025
New holders
144
362 more added
Sold out
63
307 more reduced

13 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 980 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 heldQ4 2025: $27.2B
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, Q4 2025

Shares, value and share of portfolio for each institution holding Atmos Energy Corp; share changes are against Q3 2025.

Institutions holding ATO in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Royal London Asset Management Ltd248,675$41.7M0.09%−637−0.3%Reduced
Munich Reinsurance Co Stock Corp in Munich251,940$42.5M1.03%+251,940New
Nomura Asset Management Co Ltd265,871$44.6M0.11%−37,309−12.3%Reduced
CBOE Vest Financial, LLC278,526$46.7M0.59%−69,151−19.9%Reduced
T. Rowe Price Investment Management, Inc.280,597$47.0M0.03%−71,749−20.4%Reduced
Capital International Inc289,663$48.6M0.38%+30,080+11.6%Added
New York State Common Retirement Fund297,033$49.8M0.07%−58,887−16.5%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys311,213$52.2M0.26%+1,750+0.6%Added
BNP Paribas Arbitrage, SA318,227$53.3M0.03%+50,853+19.0%Added
Barclays PLC320,876$53.8M0.02%−29,128−8.3%Reduced
Bahl & Gaynor Inc323,292$54.2M0.27%−4,751−1.4%Reduced
KBC Group NV324,373$54.4M0.12%+5,064+1.6%Added
Toronto Dominion Bank329,383$55.2M0.10%+210,237+176.5%Added
Citigroup Inc336,865$56.5M0.04%+11,442+3.5%Added
Boston Trust Walden Corp343,445$57.6M0.43%−17,552−4.9%Reduced
Benjamin Edwards Inc352,217$59.0M0.65%−5,752−1.6%Reduced
Jennison Associates LLC353,048$59.2M0.04%−7,517−2.1%Reduced
Manufacturers Life Insurance Company, The358,992$60.2M0.05%+80,545+28.9%Added
Energy Income Partners, LLC359,821$60.3M1.09%−125,566−25.9%Reduced
Rhumbline Advisers360,345$60.4M0.05%+7,903+2.2%Added
JPMorgan Chase & Co361,783$60.6M0.00%−117,525−24.5%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.362,757$61.4M0.04%+10,635+3.0%Added
Clark Capital Management Group, Inc.369,236$61.9M0.38%+45,194+13.9%Added
California Public Employees Retirement System397,862$66.7M0.04%−80,441−16.8%Reduced
Sumitomo Mitsui Trust Holdings, Inc.408,202$68.4M0.04%−10,787−2.6%Reduced
Earnest Partners LLC426,836$71.6M0.31%−12,274−2.8%Reduced
Swiss National Bank439,900$73.7M0.04%−18,000−3.9%Reduced
First Trust Advisors LP461,418$77.3M0.06%−116,398−20.1%Reduced
Huntington National Bank464,971$77.9M0.47%+17,352+3.9%Added
California State Teachers Retirement System477,492$80.0M0.08%+900+0.2%Added
Nuveen, LLC483,984$81.1M0.02%−10,127−2.0%Reduced
Principal Financial Group Inc486,229$81.5M0.04%+114,836+30.9%Added
Nilsine Partners, LLC501,176$84.0M7.28%−22,585−4.3%Reduced
Chevy Chase Trust Holdings, Inc.505,126$84.7M0.23%+1,662+0.3%Added
AQR Capital Management LLC506,617$84.9M0.04%+18,423+3.8%Added
Cbre Clarion Securities LLC529,421$88.7M1.30%−204,720−27.9%Reduced
Citadel Advisors LLC531,849$89.2M0.06%+381,226+253.1%Added
Envestnet Asset Management Inc551,866$92.5M0.03%−83,874−13.2%Reduced
SEI Investments Co574,099$96.2M0.09%−63,722−10.0%Reduced
UBS Group AG587,461$98.5M0.02%−282,015−32.4%Reduced
Neuberger Berman Group LLC596,913$100.1M0.07%−7,368−1.2%Reduced
Royal Bank of Canada598,809$100.4M0.02%−129,094−17.7%Reduced
Cooke & Bieler LP640,641$107.4M1.12%−296,972−31.7%Reduced
PFA Pension, Forsikringsaktieselskab639,039$107.7M0.31%+639,039New
Duff & Phelps Investment Management Co652,306$109.3M1.24%−45,198−6.5%Reduced
Cohen & Steers, Inc.671,396$112.5M0.20%+29,400+4.6%Added
GQG Partners LLC703,592$117.9M0.19%−15,964−2.2%Reduced
Silvercrest Asset Management Group LLC725,203$121.6M0.84%−35,453−4.7%Reduced
Dimensional Fund Advisors LP733,398$122.9M0.03%+539+0.1%Added
HSBC Holdings PLC816,586$136.9M0.08%+286,406+54.0%Added
Amundi870,739$146.0M0.04%+301,802+53.0%Added
The PNC Financial Services Group, Inc.874,973$146.7M0.08%+105,508+13.7%Added
Bank of New York Mellon Corp896,218$150.2M0.03%−3,156−0.4%Reduced
ProShare Advisors LLC948,759$159.0M0.28%−163,338−14.7%Reduced
Charles Schwab Investment Management Inc980,844$164.4M0.03%+11,338+1.2%Added
UBS Asset Management Americas Inc1,029,303$172.5M0.04%+20,816+2.1%Added
American Century Companies Inc1,040,001$174.3M0.09%−198,546−16.0%Reduced
Pictet Asset Management Holding SA1,059,841$177.7M0.17%−29,357−2.7%Reduced
SFMG, LLC1,060,389$177.8M11.93%+18,247+1.8%Added
Raymond James Financial Inc1,111,320$186.3M0.06%−64,644−5.5%Reduced
Goldman Sachs Group Inc1,246,554$209.0M0.03%−64,291−4.9%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main1,267,928$212.5M0.19%+27,145+2.2%Added
Wells Fargo & Company1,349,049$226.1M0.04%+73,600+5.8%Added
Perpetual Ltd1,398,334$234.4M3.39%−85,031−5.7%Reduced
Northern Trust Corp1,511,339$253.3M0.03%−8,166−0.5%Reduced
Legal & General Group Plc1,580,574$265.0M0.06%+1,686+0.1%Added
Massachusetts Financial Services Co1,975,460$331.1M0.11%+25,963+1.3%Added
Norges Bank1,977,131$331.4M0.04%+1,977,131New
Morgan Stanley2,755,913$462.0M0.03%−152,181−5.2%Reduced
Deutsche Bank AG2,887,367$484.0M0.16%+47,860+1.7%Added
Invesco Ltd.3,013,774$505.2M0.05%−85,586−2.8%Reduced
Bank of America Corp3,782,500$634.1M0.05%+45,447+1.2%Added
Geode Capital Management, LLC4,214,985$703.8M0.04%+78,438+1.9%Added
Aristotle Capital Management, LLC6,370,129$1.07B2.14%−864,600−12.0%Reduced
Price T Rowe Associates Inc6,597,064$1.11B0.12%−1,220,132−15.6%Reduced
Wellington Management Group LLP10,010,508$1.68B0.29%−457,320−4.4%Reduced
State Street Corp10,786,358$1.81B0.06%+155,836+1.5%Added
Capital International Investors11,893,826$1.99B0.31%+927,986+8.5%Added
BlackRock, Inc.17,023,479$2.85B0.05%+2,462,570+16.9%Added
Vanguard Group Inc21,032,554$3.53B0.05%+276,485+1.3%Added
Connor, Clark & Lunn Investment Management Ltd.0$00.00%−60,661−100.0%Sold out
Natixis0$00.00%−45,931−100.0%Sold out
Oppenheimer & Co Inc0$00.00%−27,414−100.0%Sold out
Oppenheimer Asset Management Inc.0$00.00%−23,378−100.0%Sold out
Brendel Financial Advisors LLC0$00.00%−22,339−100.0%Sold out
Oddo BHF Asset Management SAS0$00.00%−15,790−100.0%Sold out
Delta Global Management LP0$00.00%−15,059−100.0%Sold out
Virtus Investment Advisers, Inc.0$00.00%−11,849−100.0%Sold out
Park Avenue Securities LLC0$00.00%−11,036−100.0%Sold out
Hudson Bay Capital Management LP0$00.00%−10,090−100.0%Sold out
Brevan Howard Capital Management LP0$00.00%−8,378−100.0%Sold out
La Banque Postale Asset Management SA0$00.00%−7,884−100.0%Sold out
NovaPoint Capital, LLC0$00.00%−7,057−100.0%Sold out
Farringdon Capital, Ltd.0$00.00%−5,515−100.0%Sold out
Empowered Funds, LLC0$00.00%−5,132−100.0%Sold out
Sageworth Trust Co0$00.00%−4,812−100.0%Sold out
Kovitz Investment Group Partners, LLC0$00.00%−3,401−100.0%Sold out
Hilltop Holdings Inc.0$00.00%−3,085−100.0%Sold out
Capstone Investment Advisors, LLC0$00.00%−2,864−100.0%Sold out
Summit Wealth Group LLC0$00.00%−1,931−100.0%Sold out