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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
HighTower Advisors, LLC53,701$9.25M0.01%−3,998−6.9%Reduced
Public Employees Retirement System of Ohio53,090$9.15M0.03%−41,372−43.8%Reduced
DnB Asset Management AS52,980$9.13M0.03%+5,211+10.9%Added
State of Michigan Retirement System50,910$8.77M0.04%−10,300−16.8%Reduced
Mirae Asset Global Investments Co., Ltd.50,836$8.76M0.02%+11,325+28.7%Added
DekaBank Deutsche Girozentrale47,563$8.70M0.01%00.0%Unchanged
IFM Investors Pty Ltd49,832$8.58M0.06%+6,850+15.9%Added
XTX Topco Ltd49,392$8.51M0.11%+49,392New
Eastern Bank48,842$8.41M0.13%−14,698−23.1%Reduced
Mn Services Vermogensbeheer B.V.48,162$8.30M0.06%−13,200−21.5%Reduced
BLI - Banque de Luxembourg Investments47,000$8.24M0.29%+15,000+46.9%Added
Public Sector Pension Investment Board47,648$8.21M0.02%+636+1.4%Added
Czech National Bank47,512$8.18M0.04%+2,455+5.4%Added
Arizona State Retirement System47,433$8.17M0.04%+3,484+7.9%Added
Allianz Asset Management GmbH47,192$8.13M0.01%+1,145+2.5%Added
Illinois Municipal Retirement Fund46,516$8.01M0.09%−2,490−5.1%Reduced
Quadrature Capital Ltd46,184$7.96M0.07%+37,446+428.5%Added
Verition Fund Management LLC46,068$7.94M0.06%−24,395−34.6%Reduced
MML Investors Services, LLC46,059$7.93M0.02%+4,091+9.7%Added
Teachers Retirement System of the State of Kentucky45,015$7.75M0.05%−6,641−12.9%Reduced
Fisher Funds Management LTD44,079$7.59M0.22%−5,421−11.0%Reduced
Mirae Asset Global ETFs Holdings Ltd.43,846$7.55M0.01%+24,492+126.5%Added
BI Asset Management Fondsmaeglerselskab A/S43,031$7.41M0.06%−2,308−5.1%Reduced
BCM Advisors, LLC41,319$7.41M1.44%00.0%Unchanged
Mercer Global Advisors Inc42,775$7.37M0.01%+21,167+98.0%Added
Toroso Investments, LLC42,632$7.34M0.02%+26,454+163.5%Added
Stratos Wealth Partners, LTD.42,170$7.26M0.07%+3,605+9.3%Added
Nisa Investment Advisors, LLC42,151$7.26M0.02%−2,560−5.7%Reduced
Intech Investment Management LLC41,441$7.14M0.07%−10,195−19.7%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)41,376$7.13M0.01%−614−1.5%Reduced
State of New Jersey Common Pension Fund D41,122$7.08M0.02%00.0%Unchanged
Wiley Bros.-Aintree Capital, LLC40,930$7.05M0.03%+17,863+77.4%Added
Umb Bank N A40,578$6.99M0.09%−442−1.1%Reduced
Canada Pension Plan Investment Board39,604$6.82M0.00%−96,100−70.8%Reduced
Kennedy Capital Management, Inc.39,490$6.80M0.12%+100.0%Added
Westerkirk Capital Inc.38,561$6.64M0.64%00.0%Unchanged
TrueMark Investments, LLC38,400$6.62M0.83%+5,022+15.0%Added
Opal Capital LLC38,335$6.60M1.18%+5,022+15.1%Added
MetLife Investment Management38,152$6.57M0.03%−414−1.1%Reduced
Fifth Third Bancorp37,939$6.54M0.01%−3,604−8.7%Reduced
United Bank36,879$6.35M0.75%+9,458+34.5%Added
Merit Financial Group, LLC36,434$6.28M0.04%+2,929+8.7%Added
Bank of Nova Scotia36,395$6.27M0.01%−3,590−9.0%Reduced
Woodline Partners LP36,348$6.26M0.02%+4,088+12.7%Added
Dai-Ichi Life Insurance Company, Ltd35,960$6.19M0.14%−16,587−31.6%Reduced
Xponance, Inc.35,901$6.18M0.04%+3,689+11.5%Added
Texas Yale Capital Corp.35,424$6.10M0.13%+150+0.4%Added
Retirement Systems of Alabama35,066$6.04M0.02%−67−0.2%Reduced
Cambridge Investment Research Advisors, Inc.34,730$5.98M0.01%+128+0.4%Added
Aristotle Capital Management, LLC33,902$5.84M0.01%−4,832,579−99.3%Reduced
Voya Investment Management LLC33,792$5.82M0.01%+10.0%Added
Swiss Life Asset Management Ltd33,766$5.82M0.02%+4,248+14.4%Added
Mutual of America Capital Management LLC33,264$5.73M0.06%−6,203−15.7%Reduced
Captrust Financial Advisors32,898$5.67M0.01%−1,277−3.7%Reduced
CIBC Bancorp USA Inc.32,564$5.60M0.01%−5,904−15.3%Reduced
Daiwa Securities Group Inc.32,403$5.58M0.01%+2,940+10.0%Added
Twinbeech Capital LP31,885$5.49M0.99%+31,885New
M&T Bank Corp31,796$5.48M0.02%−14,287−31.0%Reduced
Colony Group, LLC31,679$5.46M0.01%+15,163+91.8%Added
CWM Advisors, LLC31,461$5.42M0.22%+5,357+20.5%Added
APG Asset Management N.V.35,556$5.36M0.01%+9,746+37.8%Added
Truist Financial Corp29,955$5.16M0.01%−5,060−14.5%Reduced
Guggenheim Capital LLC29,644$5.11M0.03%−2,947−9.0%Reduced
Amalgamated Bank29,274$5.04M0.03%−1,739−5.6%Reduced
USS Investment Management Ltd29,136$5.02M0.02%00.0%Unchanged
Amarillo National Bank28,567$4.92M0.79%−74−0.3%Reduced
Asset Advisors Investment Management, LLC28,181$4.85M0.45%+908+3.3%Added
Susquehanna Portfolio Strategies, LLC27,993$4.82M0.08%−710−2.5%Reduced
Dean Investment Associates, LLC27,954$4.82M0.63%+548+2.0%Added
B. Metzler seel. Sohn & Co. AG27,937$4.81M0.04%−1,476−5.0%Reduced
Oppenheimer & Co Inc27,707$4.77M0.05%−260−0.9%Reduced
Entropy Technologies, LP26,969$4.65M0.18%+13,122+94.8%Added
NEOS Investment Management LLC26,510$4.57M0.02%+3,758+16.5%Added
Harrison Street Private Wealth LLC26,455$4.56M6.42%−405−1.5%Reduced
Advisor Group Holdings, Inc.26,415$4.55M0.01%−5,528−17.3%Reduced
Castellan Group, LLC25,830$4.45M0.49%+205+0.8%Added
Kestra Private Wealth Services, LLC25,714$4.43M0.05%+395+1.6%Added
Waterloo Capital, L.P.25,664$4.42M0.25%−2,930−10.2%Reduced
Quantbot Technologies LP25,562$4.40M0.17%+25,562New
Sciencast Management LP25,104$4.32M0.90%+25,104New
PensionDanmark Pensionsforsikringsaktieselskab25,102$4.32M0.04%+2,200+9.6%Added
Utah Retirement Systems25,040$4.31M0.04%−969−3.7%Reduced
Voloridge Investment Management, LLC24,965$4.30M0.02%+23,044+1,199.6%Added
British Columbia Investment Management Corp24,813$4.27M0.03%+2,523+11.3%Added
JustInvest LLC24,786$4.27M0.04%+2,216+9.8%Added
Kinloch Capital, LLC24,779$4.27M1.56%+184+0.7%Added
Folger Nolan Fleming Douglas Capital Management, Inc24,446$4.21M0.34%−171−0.7%Reduced
Edgemoor Investment Advisors, Inc.24,351$4.19M0.29%−1,201−4.7%Reduced
Police & Firemen's Retirement System of New Jersey24,247$4.18M0.03%−184−0.8%Reduced
Franklin Resources Inc24,202$4.17M0.00%−15,011−38.3%Reduced
Havemeyer Place LP24,132$4.16M0.41%+24,132New
Oppenheimer Asset Management Inc.23,552$4.06M0.04%−296−1.2%Reduced
Nissay Asset Management Corp23,188$3.99M0.02%+1,141+5.2%Added
New York Life Investment Management LLC23,177$3.99M0.03%+262+1.1%Added
Pathstone Holdings, LLC23,065$3.98M0.01%+956+4.3%Added
Ilmarinen Mutual Pension Insurance Co23,000$3.96M0.03%00.0%Unchanged
Wakefield Asset Management LLLP22,966$3.96M0.89%+322+1.4%Added
Oak Thistle LLC22,758$3.92M0.38%+22,758New
Navellier & Associates Inc22,750$3.92M0.31%+314+1.4%Added
Pring Turner Capital Group Inc22,633$3.89M2.23%−705−3.0%Reduced