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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
GWM Advisors LLC15,376$2.65M0.01%+5,924+62.7%Added
Hancock Whitney Corp15,481$2.67M0.04%−237−1.5%Reduced
Rockefeller Capital Management L.P.15,517$2.67M0.00%+1,684+12.2%Added
Hennion & Walsh Asset Management, Inc.15,561$2.68M0.08%+7,365+89.9%Added
Generali Asset Management SPA SGR15,591$2.69M0.05%+477+3.2%Added
Integrated Wealth Concepts LLC15,788$2.72M0.02%+7,760+96.7%Added
Reaves W H & Co Inc15,795$2.72M0.04%−865−5.2%Reduced
Machina Capital S.A.S.15,820$2.73M0.43%+15,820New
Allianz SE15,985$2.75M0.03%00.0%Unchanged
Kentucky Trust Co16,224$2.79M1.34%−150−0.9%Reduced
Allstate Corp16,282$2.80M0.03%+544+3.5%Added
State of Alaska, Department of Revenue16,356$2.82M0.03%−294−1.8%Reduced
Albert D Mason Inc16,403$2.83M1.61%+3,899+31.2%Added
PDT Partners, LLC16,460$2.84M0.15%+1,900+13.0%Added
Obermeyer Wood Investment Counsel, LLLP16,803$2.89M0.12%−529−3.1%Reduced
Fideuram Asset Management (Ireland) dac17,259$2.95M0.06%+16,936+5,243.3%Added
Prospera Financial Services Inc17,117$2.95M0.04%−999−5.5%Reduced
OP Asset Management Ltd17,253$2.97M0.03%+1,023+6.3%Added
ISAM Funds (UK) Ltd17,300$2.98M2.10%+17,300New
Vident Advisory, LLC17,378$2.99M0.02%+725+4.4%Added
Danske Bank A/S17,705$3.05M0.01%+2,700+18.0%Added
Legacy Financial Strategies, LLC18,181$3.13M0.49%−1,286−6.6%Reduced
Rafferty Asset Management, LLC18,436$3.18M0.01%+5,048+37.7%Added
Vestmark Advisory Solutions, Inc.18,670$3.22M0.03%+2,326+14.2%Added
UniSuper Management Pty Ltd18,885$3.25M0.02%+1,725+10.1%Added
Capital International Sarl18,887$3.25M0.05%00.0%Unchanged
Ausbil Investment Management Ltd18,860$3.26M1.48%−2,657−12.3%Reduced
SummitTX Capital, L.P.19,031$3.28M0.09%+19,031New
Fuller & Thaler Asset Management, Inc.19,081$3.29M0.01%−87−0.5%Reduced
Bleakley Financial Group, LLC19,155$3.30M0.04%+6,126+47.0%Added
Crossmark Global Holdings, Inc.19,258$3.32M0.04%+783+4.2%Added
Cambiar Investors LLC19,440$3.35M0.15%−895−4.4%Reduced
Orion Investment Co20,034$3.45M1.01%+1,133+6.0%Added
Commonwealth Equity Services, LLC20,043$3.45M0.00%−1,073−5.1%Reduced
Oregon Public Employees Retirement Fund20,565$3.54M0.04%+1,600+8.4%Added
Vestcor Inc20,810$3.58M0.09%+14,851+249.2%Added
Brinker Capital Investments, LLC20,849$3.59M0.03%+3,324+19.0%Added
Y-Intercept (Hong Kong) Ltd20,907$3.60M0.07%+20,907New
Glenmede Trust Co NA21,130$3.64M0.02%+183+0.9%Added
Moran Wealth Management, LLC21,216$3.65M0.10%−493−2.3%Reduced
Qsemble Capital Management, LP21,472$3.70M0.47%+21,472New
Ethic Inc.21,483$3.70M0.05%−3,211−13.0%Reduced
Elo Mutual Pension Insurance Co21,511$3.71M0.05%−5,101−19.2%Reduced
Sumitomo Mitsui DS Asset Management Company, Ltd21,644$3.73M0.03%+76+0.4%Added
Pring Turner Capital Group Inc22,633$3.89M2.23%−705−3.0%Reduced
Navellier & Associates Inc22,750$3.92M0.31%+314+1.4%Added
Oak Thistle LLC22,758$3.92M0.38%+22,758New
Wakefield Asset Management LLLP22,966$3.96M0.89%+322+1.4%Added
Ilmarinen Mutual Pension Insurance Co23,000$3.96M0.03%00.0%Unchanged
Pathstone Holdings, LLC23,065$3.98M0.01%+956+4.3%Added
New York Life Investment Management LLC23,177$3.99M0.03%+262+1.1%Added
Nissay Asset Management Corp23,188$3.99M0.02%+1,141+5.2%Added
Oppenheimer Asset Management Inc.23,552$4.06M0.04%−296−1.2%Reduced
Havemeyer Place LP24,132$4.16M0.41%+24,132New
Franklin Resources Inc24,202$4.17M0.00%−15,011−38.3%Reduced
Police & Firemen's Retirement System of New Jersey24,247$4.18M0.03%−184−0.8%Reduced
Edgemoor Investment Advisors, Inc.24,351$4.19M0.29%−1,201−4.7%Reduced
Folger Nolan Fleming Douglas Capital Management, Inc24,446$4.21M0.34%−171−0.7%Reduced
Kinloch Capital, LLC24,779$4.27M1.56%+184+0.7%Added
JustInvest LLC24,786$4.27M0.04%+2,216+9.8%Added
British Columbia Investment Management Corp24,813$4.27M0.03%+2,523+11.3%Added
Voloridge Investment Management, LLC24,965$4.30M0.02%+23,044+1,199.6%Added
Utah Retirement Systems25,040$4.31M0.04%−969−3.7%Reduced
PensionDanmark Pensionsforsikringsaktieselskab25,102$4.32M0.04%+2,200+9.6%Added
Sciencast Management LP25,104$4.32M0.90%+25,104New
Quantbot Technologies LP25,562$4.40M0.17%+25,562New
Waterloo Capital, L.P.25,664$4.42M0.25%−2,930−10.2%Reduced
Kestra Private Wealth Services, LLC25,714$4.43M0.05%+395+1.6%Added
Castellan Group, LLC25,830$4.45M0.49%+205+0.8%Added
Advisor Group Holdings, Inc.26,415$4.55M0.01%−5,528−17.3%Reduced
Harrison Street Private Wealth LLC26,455$4.56M6.42%−405−1.5%Reduced
NEOS Investment Management LLC26,510$4.57M0.02%+3,758+16.5%Added
Entropy Technologies, LP26,969$4.65M0.18%+13,122+94.8%Added
Oppenheimer & Co Inc27,707$4.77M0.05%−260−0.9%Reduced
B. Metzler seel. Sohn & Co. AG27,937$4.81M0.04%−1,476−5.0%Reduced
Dean Investment Associates, LLC27,954$4.82M0.63%+548+2.0%Added
Susquehanna Portfolio Strategies, LLC27,993$4.82M0.08%−710−2.5%Reduced
Asset Advisors Investment Management, LLC28,181$4.85M0.45%+908+3.3%Added
Amarillo National Bank28,567$4.92M0.79%−74−0.3%Reduced
USS Investment Management Ltd29,136$5.02M0.02%00.0%Unchanged
Amalgamated Bank29,274$5.04M0.03%−1,739−5.6%Reduced
Guggenheim Capital LLC29,644$5.11M0.03%−2,947−9.0%Reduced
Truist Financial Corp29,955$5.16M0.01%−5,060−14.5%Reduced
APG Asset Management N.V.35,556$5.36M0.01%+9,746+37.8%Added
CWM Advisors, LLC31,461$5.42M0.22%+5,357+20.5%Added
Colony Group, LLC31,679$5.46M0.01%+15,163+91.8%Added
M&T Bank Corp31,796$5.48M0.02%−14,287−31.0%Reduced
Twinbeech Capital LP31,885$5.49M0.99%+31,885New
Daiwa Securities Group Inc.32,403$5.58M0.01%+2,940+10.0%Added
CIBC Bancorp USA Inc.32,564$5.60M0.01%−5,904−15.3%Reduced
Captrust Financial Advisors32,898$5.67M0.01%−1,277−3.7%Reduced
Mutual of America Capital Management LLC33,264$5.73M0.06%−6,203−15.7%Reduced
Swiss Life Asset Management Ltd33,766$5.82M0.02%+4,248+14.4%Added
Voya Investment Management LLC33,792$5.82M0.01%+10.0%Added
Aristotle Capital Management, LLC33,902$5.84M0.01%−4,832,579−99.3%Reduced
Cambridge Investment Research Advisors, Inc.34,730$5.98M0.01%+128+0.4%Added
Retirement Systems of Alabama35,066$6.04M0.02%−67−0.2%Reduced
Texas Yale Capital Corp.35,424$6.10M0.13%+150+0.4%Added
Xponance, Inc.35,901$6.18M0.04%+3,689+11.5%Added
Dai-Ichi Life Insurance Company, Ltd35,960$6.19M0.14%−16,587−31.6%Reduced