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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
Fifth Third Bancorp41,543$7.67M0.01%+34,964+531.4%Added
State of New Jersey Common Pension Fund D41,122$7.60M0.03%+1,820+4.6%Added
Umb Bank N A41,020$7.58M0.11%+1,514+3.8%Added
Edgestream Partners, L.P.40,951$7.56M0.25%−31,569−43.5%Reduced
Robeco Institutional Asset Management B.V.40,846$7.55M0.01%−9,898−19.5%Reduced
Bank of Nova Scotia39,985$7.39M0.01%−32,987−45.2%Reduced
Mirae Asset Global Investments Co., Ltd.39,511$7.30M0.02%+8,254+26.4%Added
Kennedy Capital Management, Inc.39,480$7.29M0.15%−31−0.1%Reduced
Mutual of America Capital Management LLC39,467$7.29M0.08%+281+0.7%Added
Squarepoint Ops LLC39,215$7.24M0.02%−58,920−60.0%Reduced
Franklin Resources Inc39,213$7.24M0.00%−565−1.4%Reduced
MetLife Investment Management38,566$7.12M0.04%+95+0.2%Added
Stratos Wealth Partners, LTD.38,565$7.12M0.08%+1,464+3.9%Added
Westerkirk Capital Inc.38,561$7.12M0.77%−1,800−4.5%Reduced
CIBC Bancorp USA Inc.38,468$7.11M0.01%+38,468New
Assenagon Asset Management S.A.38,441$7.10M0.01%−75,945−66.4%Reduced
Occudo Quantitative Strategies LP34,559$6.57M0.36%+34,559New
Texas Yale Capital Corp.35,274$6.52M0.18%+150+0.4%Added
Retirement Systems of Alabama35,133$6.49M0.02%+983+2.9%Added
Truist Financial Corp35,015$6.47M0.01%+4,407+14.4%Added
Cambridge Investment Research Advisors, Inc.34,602$6.39M0.02%+1,097+3.3%Added
Captrust Financial Advisors34,175$6.31M0.01%+13,136+62.4%Added
Voya Investment Management LLC33,791$6.24M0.01%+429+1.3%Added
Merit Financial Group, LLC33,505$6.19M0.05%+6,460+23.9%Added
TrueMark Investments, LLC33,378$6.17M1.20%+33,378New
Opal Capital LLC33,313$6.15M1.09%+33,313New
Guggenheim Capital LLC32,591$6.02M0.05%+1,846+6.0%Added
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund32,500$6.00M0.03%+32,500New
Woodline Partners LP32,260$5.96M0.02%+4,872+17.8%Added
Xponance, Inc.32,212$5.95M0.04%+5,679+21.4%Added
Advisor Group Holdings, Inc.31,943$5.90M0.01%−3,719−10.4%Reduced
Mackenzie Financial Corp31,551$5.83M0.01%+644+2.1%Added
Amalgamated Bank31,013$5.73M0.04%+1,351+4.6%Added
Abn Amro Investment Solutions29,686$5.48M0.07%−30,180−50.4%Reduced
Swiss Life Asset Management Ltd29,518$5.45M0.03%+2,113+7.7%Added
Daiwa Securities Group Inc.29,463$5.44M0.02%−26,630−47.5%Reduced
B. Metzler seel. Sohn & Co. AG29,413$5.43M0.05%+3,428+13.2%Added
USS Investment Management Ltd29,136$5.38M0.02%+3,972+15.8%Added
BLI - Banque de Luxembourg Investments32,000$5.31M0.16%00.0%Unchanged
Susquehanna Portfolio Strategies, LLC28,703$5.30M0.08%+606+2.2%Added
Amarillo National Bank28,641$5.29M0.93%+74+0.3%Added
Waterloo Capital, L.P.28,594$5.28M0.37%−158−0.5%Reduced
Oppenheimer & Co Inc27,967$5.17M0.06%+27,967New
United Bank27,421$5.07M0.65%+27,421New
Dean Investment Associates, LLC27,406$5.06M0.71%+655+2.4%Added
Asset Advisors Investment Management, LLC27,273$5.04M0.48%+2,508+10.1%Added
Harrison Street Private Wealth LLC26,860$4.96M6.57%+26,860New
Elo Mutual Pension Insurance Co26,612$4.92M0.08%+7,778+41.3%Added
ASR Vermogensbeheer N.V.26,303$4.86M0.06%+396+1.5%Added
CWM Advisors, LLC26,104$4.82M0.28%+7,150+37.7%Added
Utah Retirement Systems26,009$4.80M0.05%−231−0.9%Reduced
Citizens Financial Group Inc25,873$4.78M0.07%+1,715+7.1%Added
Castellan Group, LLC25,625$4.73M0.66%+1,832+7.7%Added
Edgemoor Investment Advisors, Inc.25,552$4.72M0.37%−914−3.5%Reduced
Kestra Private Wealth Services, LLC25,319$4.68M0.06%+630+2.6%Added
Ethic Inc.24,694$4.56M0.07%−1,215−4.7%Reduced
Folger Nolan Fleming Douglas Capital Management, Inc24,617$4.55M0.41%+349+1.4%Added
Kinloch Capital, LLC24,595$4.54M1.85%−1,528−5.8%Reduced
Police & Firemen's Retirement System of New Jersey24,431$4.51M0.04%00.0%Unchanged
Wealth Enhancement Advisory Services, LLC23,720$4.48M0.01%−4,364−15.5%Reduced
Susquehanna International Group, LLP24,199$4.47M0.01%−20,508−45.9%Reduced
Oppenheimer Asset Management Inc.23,848$4.41M0.05%+23,848New
O'Shaughnessy Asset Management, LLC23,727$4.38M0.02%+4,825+25.5%Added
Wiley Bros.-Aintree Capital, LLC23,067$4.26M0.02%+2,722+13.4%Added
Ilmarinen Mutual Pension Insurance Co23,000$4.25M0.03%00.0%Unchanged
New York Life Investment Management LLC22,915$4.23M0.04%+963+4.4%Added
PensionDanmark Pensionsforsikringsaktieselskab22,902$4.23M0.04%−2,260−9.0%Reduced
NEOS Investment Management LLC22,752$4.20M0.02%+3,484+18.1%Added
Wakefield Asset Management LLLP22,644$4.18M1.11%+13,051+136.0%Added
JustInvest LLC22,570$4.17M0.04%+399+1.8%Added
Navellier & Associates Inc22,436$4.14M0.43%−878−3.8%Reduced
APG Asset Management N.V.25,810$4.14M0.01%−2,910−10.1%Reduced
British Columbia Investment Management Corp22,290$4.12M0.02%−6,138−21.6%Reduced
Pathstone Holdings, LLC22,109$4.08M0.02%−449−2.0%Reduced
Nissay Asset Management Corp22,047$4.07M0.02%+549+2.6%Added
Moran Wealth Management, LLC21,709$4.01M0.12%+212+1.0%Added
Mercer Global Advisors Inc21,608$3.99M0.01%+10,889+101.6%Added
Ausbil Investment Management Ltd21,517$3.99M1.99%00.0%Unchanged
Sumitomo Mitsui DS Asset Management Company, Ltd21,568$3.98M0.03%00.0%Unchanged
ING Groep NV21,337$3.94M0.02%+11,292+112.4%Added
Patton Fund Management, Inc.21,252$3.93M0.67%−8,136−27.7%Reduced
Pring Turner Capital Group Inc23,338$3.91M2.36%00.0%Unchanged
Commonwealth Equity Services, LLC21,116$3.90M0.01%−1,185−5.3%Reduced
Glenmede Trust Co NA20,947$3.87M0.02%+329+1.6%Added
Cambiar Investors LLC20,335$3.76M0.17%−5,820−22.3%Reduced
Los Angeles Capital Management LLC20,312$3.75M0.01%+18,858+1,297.0%Added
Atria Investments LLC20,196$3.73M0.04%−2,898−12.5%Reduced
CWM, LLC19,502$3.60M0.01%+6,850+54.1%Added
Legacy Financial Strategies, LLC19,467$3.60M0.65%−649−3.2%Reduced
Mirae Asset Global ETFs Holdings Ltd.19,354$3.58M0.00%−7,879−28.9%Reduced
Fuller & Thaler Asset Management, Inc.19,168$3.54M0.01%−128−0.7%Reduced
Oregon Public Employees Retirement Fund18,965$3.50M0.05%+600+3.3%Added
Orion Investment Co18,901$3.49M1.11%+243+1.3%Added
Capital International Sarl18,887$3.49M0.06%−5,159−21.5%Reduced
Crossmark Global Holdings, Inc.18,475$3.41M0.05%+2,862+18.3%Added
Prospera Financial Services Inc18,116$3.35M0.05%+183+1.0%Added
Brinker Capital Investments, LLC17,525$3.24M0.03%+102+0.6%Added
Obermeyer Wood Investment Counsel, LLLP17,332$3.20M0.15%−99−0.6%Reduced
UniSuper Management Pty Ltd17,160$3.17M0.02%−908−5.0%Reduced
Ieq Capital, LLC16,964$3.13M0.01%+16,964New