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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 $28.1B 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
163.1M
+3.09M (+1.9%) vs. Q1 2026
Total value
$28.1B
−$1.44B (−4.9%) 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: $28.1B
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: $14.8BQ2 2023: $15.8BQ3 2023: $14.4BQ4 2023: $16.1BQ1 2024: $17.1BQ2 2024: $16.8BQ3 2024: $20.9BQ4 2024: $21.8BQ1 2025: $24.5BQ2 2025: $24.8BQ3 2025: $27.3BQ4 2025: $27.3BQ1 2026: $29.6BQ2 2026: $28.1B
Institutions holding ATO and their total value by quarter
QuarterHoldersValue
Q2 20261,044$28.1B
Q1 20261,020$29.6B
Q4 2025980$27.3B
Q3 2025912$27.3B
Q2 2025871$24.8B
Q1 2025861$24.5B
Q4 2024818$21.8B
Q3 2024758$20.9B
Q2 2024736$16.8B
Q1 2024731$17.1B
Q4 2023722$16.1B
Q3 2023669$14.4B
Q2 2023672$15.8B
Q1 2023664$14.8B
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
BlackRock, Inc.15,237,564$2.62B0.04%−2,214,399−12.7%Reduced
State Street Corp11,380,060$1.96B0.06%+7,310+0.1%Added
Vanguard Capital Management LLC10,885,153$1.88B0.04%+149,606+1.4%Added
Vanguard Portfolio Management LLC9,360,135$1.61B0.07%+74,502+0.8%Added
Wellington Management Group LLP9,185,788$1.58B0.27%−465,684−4.8%Reduced
Capital International Investors7,483,012$1.29B0.27%+156,234+2.1%Added
Geode Capital Management, LLC4,489,277$770.3M0.04%+152,281+3.5%Added
Bank of America Corp4,180,718$720.2M0.05%−18,715−0.4%Reduced
Invesco Ltd.3,173,775$546.7M0.04%+166,469+5.5%Added
Morgan Stanley2,863,719$493.3M0.03%−137,467−4.6%Reduced
Deutsche Bank AG2,505,816$431.7M0.13%−41,221−1.6%Reduced
Price T Rowe Associates Inc2,481,649$427.5M0.04%−233,458−8.6%Reduced
AQR Capital Management LLC2,373,903$409.0M0.14%+1,551,127+188.5%Added
Goldman Sachs Group Inc2,165,784$373.1M0.04%+230,622+11.9%Added
Qube Research & Technologies Ltd2,136,532$368.1M0.41%+2,053,901+2,485.6%Added
Norges Bank2,079,227$358.2M0.04%+2,079,227New
Massachusetts Financial Services Co1,842,583$321.4M0.10%+69,982+3.9%Added
Amundi1,823,714$314.2M0.08%+520,828+40.0%Added
Citadel Advisors LLC1,736,405$299.1M0.17%+984,801+131.0%Added
Legal & General Group Plc1,605,373$276.6M0.06%−11,007−0.7%Reduced
Capital Research Global Investors1,508,563$259.9M0.04%−2,501,987−62.4%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main1,491,483$256.9M0.20%+830+0.1%Added
Northern Trust Corp1,393,267$240.0M0.03%−156,427−10.1%Reduced
Point72 Asset Management, L.P.1,361,162$234.5M0.36%+1,361,162New
Raymond James Financial Inc1,271,473$219.0M0.06%+64,721+5.4%Added
Pictet Asset Management Holding SA1,270,400$218.9M0.21%+94,985+8.1%Added
Wells Fargo & Company1,204,326$207.5M0.04%−125,002−9.4%Reduced
GQG Partners LLC1,175,136$202.4M0.38%+287,932+32.5%Added
Perpetual Ltd1,133,323$195.2M2.79%−107,146−8.6%Reduced
UBS Asset Management Americas Inc1,098,374$189.2M0.03%+34,696+3.3%Added
SFMG, LLC1,060,369$182.7M11.13%+1,824+0.2%Added
Charles Schwab Investment Management Inc1,059,660$182.5M0.02%+23,039+2.2%Added
Cbre Clarion Securities LLC999,550$172.2M2.40%+241,597+31.9%Added
American Century Companies Inc998,021$171.9M0.08%−4,437−0.4%Reduced
Vanguard Fiduciary Trust Co936,822$161.4M0.04%+6,180+0.7%Added
ProShare Advisors LLC924,825$159.3M0.23%−99,037−9.7%Reduced
Nuveen, LLC896,066$154.4M0.04%−51,442−5.4%Reduced
The PNC Financial Services Group, Inc.884,648$152.4M0.08%−1,643−0.2%Reduced
Bank of New York Mellon Corp877,494$151.2M0.02%−15,202−1.7%Reduced
Dimensional Fund Advisors LP768,834$132.5M0.02%+15,848+2.1%Added
SG Americas Securities, LLC739,939$127.5M0.07%+669,084+944.3%Added
UBS Group AG713,094$122.8M0.02%−5,593−0.8%Reduced
Silvercrest Asset Management Group LLC682,414$117.6M0.77%−24,811−3.5%Reduced
HSBC Holdings PLC672,843$116.0M0.06%−107,341−13.8%Reduced
FMR LLC660,432$113.8M0.00%+534,938+426.3%Added
Cohen & Steers, Inc.641,326$110.5M0.17%−158,920−19.9%Reduced
Duff & Phelps Investment Management Co637,725$109.9M1.04%+29,780+4.9%Added
Neuberger Berman Group LLC627,569$108.2M0.07%+26,479+4.4%Added
BNP Paribas Arbitrage, SA608,876$104.9M0.05%−225,842−27.1%Reduced
Envestnet Asset Management Inc603,994$104.1M0.02%−70,572−10.5%Reduced
Ontario Teachers Pension Plan Board586,175$101.0M0.64%+586,175New
JPMorgan Chase & Co560,812$98.1M0.01%−235,415−29.6%Reduced
PFA Pension, Forsikringsaktieselskab565,963$97.5M0.25%−102,077−15.3%Reduced
Chevy Chase Trust Holdings, Inc.521,671$89.9M0.23%+2,958+0.6%Added
Nilsine Partners, LLC485,268$83.6M5.79%−6,063−1.2%Reduced
Huntington National Bank476,123$82.0M0.40%+8,141+1.7%Added
Swiss National Bank466,600$80.4M0.04%−8,100−1.7%Reduced
Renaissance Technologies LLC447,900$77.2M0.11%+281,100+168.5%Added
Clark Capital Management Group, Inc.435,310$75.0M0.41%+2,833+0.7%Added
Earnest Partners LLC429,513$74.0M0.27%+6,703+1.6%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.428,952$73.9M0.04%+31,780+8.0%Added
Principal Financial Group Inc427,047$73.6M0.04%−80,357−15.8%Reduced
Energy Income Partners, LLC410,650$70.7M1.11%+47,339+13.0%Added
Sumitomo Mitsui Trust Holdings, Inc.401,601$69.2M0.04%+6,912+1.8%Added
Jane Street Group, LLC396,719$68.3M0.04%+384,909+3,259.2%Added
Dearborn Partners LLC376,598$67.2M1.86%+188,329+100.0%Added
Manufacturers Life Insurance Company, The387,012$66.7M0.05%+63,589+19.7%Added
Aviva PLC381,486$65.7M0.10%−2,216−0.6%Reduced
Vanguard Global Advisers, LLC359,072$61.9M0.03%−1,772−0.5%Reduced
Rhumbline Advisers351,786$60.6M0.05%−2,174−0.6%Reduced
Vanguard Asset Management, Ltd344,472$59.3M0.04%+40,757+13.4%Added
Benjamin Edwards Inc341,125$58.8M0.54%+1,822+0.5%Added
Jennison Associates LLC337,122$58.1M0.03%−8,968−2.6%Reduced
First Trust Advisors LP330,298$56.9M0.03%−10,110−3.0%Reduced
Assenagon Asset Management S.A.329,712$56.8M0.04%+291,271+757.7%Added
Capital International Inc316,825$54.6M0.38%−8,788−2.7%Reduced
New York State Common Retirement Fund291,757$50.3M0.06%−3,700−1.3%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys288,789$49.7M0.24%−13,184−4.4%Reduced
Boston Trust Walden Corp281,447$48.5M0.37%−43,480−13.4%Reduced
Millennium Management LLC272,772$47.0M0.03%+11,351+4.3%Added
Nomura Asset Management Co Ltd272,224$46.9M0.10%−17,356−6.0%Reduced
Royal Bank of Canada270,808$46.7M0.01%−233,129−46.3%Reduced
Quantinno Capital Management LP268,788$46.3M0.06%+93,945+53.7%Added
CBOE Vest Financial, LLC265,448$45.7M0.48%−42,114−13.7%Reduced
Barclays PLC260,209$44.8M0.01%−113,133−30.3%Reduced
Royal London Asset Management Ltd254,611$43.9M0.08%−424−0.2%Reduced
Clearbridge Investments, LLC254,286$43.8M0.04%+32,417+14.6%Added
Munich Reinsurance Co Stock Corp in Munich251,761$43.4M0.95%00.0%Unchanged
National Pension Service250,465$43.1M0.03%+5,778+2.4%Added
Standard Life Aberdeen plc241,629$41.6M0.06%+13,412+5.9%Added
KBC Group NV241,558$41.6M0.09%−74,769−23.6%Reduced
Panagora Asset Management Inc237,071$40.8M0.13%+230,671+3,604.2%Added
Bahl & Gaynor Inc236,682$40.8M0.19%−99,068−29.5%Reduced
Stifel Financial Corp235,331$40.5M0.03%+2,333+1.0%Added
Partners Group Holding AG230,844$39.8M2.71%−7,362−3.1%Reduced
Great West Life Assurance Co216,602$37.3M0.06%+28,548+15.2%Added
Citigroup Inc214,158$36.9M0.02%−27,549−11.4%Reduced
Exchange Traded Concepts, LLC210,342$36.2M0.18%+14,885+7.6%Added
California Public Employees Retirement System209,558$36.1M0.02%−81,285−27.9%Reduced
LPL Financial LLC206,138$35.5M0.01%+11,861+6.1%Added