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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, Q1 2026

Institutional positions in Atmos Energy Corp as of Mar 31, 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
1,020
+57 vs. Q4 2025
Shares held
160.0M
+21.2M (+15.3%) vs. Q4 2025
Total value
$29.6B
+$6.29B (+27.0%) vs. Q4 2025
New holders
142
409 more added
Sold out
85
305 more reduced

17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 1,020 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 heldQ1 2026: $29.6B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Atmos Energy Corp; share changes are against Q4 2025.

Institutions holding ATO in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Pacer Advisors, Inc.15,078$2.79M0.01%−4,090−21.3%Reduced
Generali Asset Management SPA SGR15,114$2.79M0.06%+697+4.8%Added
Raiffeisen Bank International AG15,102$2.79M0.04%+4,770+46.2%Added
Phillips Financial Management, LLC15,173$2.80M0.20%+70.0%Added
Trexquant Investment LP15,542$2.87M0.02%−3,427−18.1%Reduced
First National Bank of Omaha15,706$2.90M0.09%+2,496+18.9%Added
Allstate Corp15,738$2.91M0.03%+3,642+30.1%Added
Allianz SE15,985$2.95M0.03%00.0%Unchanged
Hancock Whitney Corp15,718$2.99M0.05%−184−1.2%Reduced
Toroso Investments, LLC16,178$2.99M0.01%+13,328+467.6%Added
OP Asset Management Ltd16,230$3.00M0.03%−715−4.2%Reduced
Vestmark Advisory Solutions, Inc.16,344$3.02M0.03%+4,618+39.4%Added
Kentucky Trust Co16,374$3.02M1.59%−20−0.1%Reduced
Colony Group, LLC16,516$3.05M0.00%+8,115+96.6%Added
Azzad Asset Management Inc16,610$3.07M0.31%−458−2.7%Reduced
State of Alaska, Department of Revenue16,650$3.08M0.03%+695+4.4%Added
Vident Advisory, LLC16,653$3.08M0.03%+3,309+24.8%Added
Reaves W H & Co Inc16,660$3.08M0.05%−18−0.1%Reduced
Dark Forest Capital Management LP16,699$3.08M0.27%−2,152−11.4%Reduced
Kestra Advisory Services, LLC16,725$3.09M0.01%+10,461+167.0%Added
Ieq Capital, LLC16,964$3.13M0.01%+16,964New
UniSuper Management Pty Ltd17,160$3.17M0.02%−908−5.0%Reduced
Obermeyer Wood Investment Counsel, LLLP17,332$3.20M0.15%−99−0.6%Reduced
Brinker Capital Investments, LLC17,525$3.24M0.03%+102+0.6%Added
Prospera Financial Services Inc18,116$3.35M0.05%+183+1.0%Added
Crossmark Global Holdings, Inc.18,475$3.41M0.05%+2,862+18.3%Added
Capital International Sarl18,887$3.49M0.06%−5,159−21.5%Reduced
Orion Investment Co18,901$3.49M1.11%+243+1.3%Added
Oregon Public Employees Retirement Fund18,965$3.50M0.05%+600+3.3%Added
Fuller & Thaler Asset Management, Inc.19,168$3.54M0.01%−128−0.7%Reduced
Mirae Asset Global ETFs Holdings Ltd.19,354$3.58M0.00%−7,879−28.9%Reduced
Legacy Financial Strategies, LLC19,467$3.60M0.65%−649−3.2%Reduced
CWM, LLC19,502$3.60M0.01%+6,850+54.1%Added
Atria Investments LLC20,196$3.73M0.04%−2,898−12.5%Reduced
Los Angeles Capital Management LLC20,312$3.75M0.01%+18,858+1,297.0%Added
Cambiar Investors LLC20,335$3.76M0.17%−5,820−22.3%Reduced
Glenmede Trust Co NA20,947$3.87M0.02%+329+1.6%Added
Commonwealth Equity Services, LLC21,116$3.90M0.01%−1,185−5.3%Reduced
Pring Turner Capital Group Inc23,338$3.91M2.36%00.0%Unchanged
Patton Fund Management, Inc.21,252$3.93M0.67%−8,136−27.7%Reduced
ING Groep NV21,337$3.94M0.02%+11,292+112.4%Added
Sumitomo Mitsui DS Asset Management Company, Ltd21,568$3.98M0.03%00.0%Unchanged
Ausbil Investment Management Ltd21,517$3.99M1.99%00.0%Unchanged
Mercer Global Advisors Inc21,608$3.99M0.01%+10,889+101.6%Added
Moran Wealth Management, LLC21,709$4.01M0.12%+212+1.0%Added
Nissay Asset Management Corp22,047$4.07M0.02%+549+2.6%Added
Pathstone Holdings, LLC22,109$4.08M0.02%−449−2.0%Reduced
British Columbia Investment Management Corp22,290$4.12M0.02%−6,138−21.6%Reduced
APG Asset Management N.V.25,810$4.14M0.01%−2,910−10.1%Reduced
Navellier & Associates Inc22,436$4.14M0.43%−878−3.8%Reduced
JustInvest LLC22,570$4.17M0.04%+399+1.8%Added
Wakefield Asset Management LLLP22,644$4.18M1.11%+13,051+136.0%Added
NEOS Investment Management LLC22,752$4.20M0.02%+3,484+18.1%Added
PensionDanmark Pensionsforsikringsaktieselskab22,902$4.23M0.04%−2,260−9.0%Reduced
New York Life Investment Management LLC22,915$4.23M0.04%+963+4.4%Added
Ilmarinen Mutual Pension Insurance Co23,000$4.25M0.03%00.0%Unchanged
Wiley Bros.-Aintree Capital, LLC23,067$4.26M0.02%+2,722+13.4%Added
O'Shaughnessy Asset Management, LLC23,727$4.38M0.02%+4,825+25.5%Added
Oppenheimer Asset Management Inc.23,848$4.41M0.05%+23,848New
Susquehanna International Group, LLP24,199$4.47M0.01%−20,508−45.9%Reduced
Wealth Enhancement Advisory Services, LLC23,720$4.48M0.01%−4,364−15.5%Reduced
Police & Firemen's Retirement System of New Jersey24,431$4.51M0.04%00.0%Unchanged
Kinloch Capital, LLC24,595$4.54M1.85%−1,528−5.8%Reduced
Folger Nolan Fleming Douglas Capital Management, Inc24,617$4.55M0.41%+349+1.4%Added
Ethic Inc.24,694$4.56M0.07%−1,215−4.7%Reduced
Kestra Private Wealth Services, LLC25,319$4.68M0.06%+630+2.6%Added
Edgemoor Investment Advisors, Inc.25,552$4.72M0.37%−914−3.5%Reduced
Castellan Group, LLC25,625$4.73M0.66%+1,832+7.7%Added
Citizens Financial Group Inc25,873$4.78M0.07%+1,715+7.1%Added
Utah Retirement Systems26,009$4.80M0.05%−231−0.9%Reduced
CWM Advisors, LLC26,104$4.82M0.28%+7,150+37.7%Added
ASR Vermogensbeheer N.V.26,303$4.86M0.06%+396+1.5%Added
Elo Mutual Pension Insurance Co26,612$4.92M0.08%+7,778+41.3%Added
Harrison Street Private Wealth LLC26,860$4.96M6.57%+26,860New
Asset Advisors Investment Management, LLC27,273$5.04M0.48%+2,508+10.1%Added
Dean Investment Associates, LLC27,406$5.06M0.71%+655+2.4%Added
United Bank27,421$5.07M0.65%+27,421New
Oppenheimer & Co Inc27,967$5.17M0.06%+27,967New
Waterloo Capital, L.P.28,594$5.28M0.37%−158−0.5%Reduced
Amarillo National Bank28,641$5.29M0.93%+74+0.3%Added
Susquehanna Portfolio Strategies, LLC28,703$5.30M0.08%+606+2.2%Added
BLI - Banque de Luxembourg Investments32,000$5.31M0.16%00.0%Unchanged
USS Investment Management Ltd29,136$5.38M0.02%+3,972+15.8%Added
B. Metzler seel. Sohn & Co. AG29,413$5.43M0.05%+3,428+13.2%Added
Daiwa Securities Group Inc.29,463$5.44M0.02%−26,630−47.5%Reduced
Swiss Life Asset Management Ltd29,518$5.45M0.03%+2,113+7.7%Added
Abn Amro Investment Solutions29,686$5.48M0.07%−30,180−50.4%Reduced
Amalgamated Bank31,013$5.73M0.04%+1,351+4.6%Added
Mackenzie Financial Corp31,551$5.83M0.01%+644+2.1%Added
Advisor Group Holdings, Inc.31,943$5.90M0.01%−3,719−10.4%Reduced
Xponance, Inc.32,212$5.95M0.04%+5,679+21.4%Added
Woodline Partners LP32,260$5.96M0.02%+4,872+17.8%Added
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund32,500$6.00M0.03%+32,500New
Guggenheim Capital LLC32,591$6.02M0.05%+1,846+6.0%Added
Opal Capital LLC33,313$6.15M1.09%+33,313New
TrueMark Investments, LLC33,378$6.17M1.20%+33,378New
Merit Financial Group, LLC33,505$6.19M0.05%+6,460+23.9%Added
Voya Investment Management LLC33,791$6.24M0.01%+429+1.3%Added
Captrust Financial Advisors34,175$6.31M0.01%+13,136+62.4%Added
Cambridge Investment Research Advisors, Inc.34,602$6.39M0.02%+1,097+3.3%Added