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Livermore
ZHEN

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.

Q1 2026 vs. Q4 2025

How the institutions holding Atmos Energy Corp changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of ATO: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders980171,020+57
Shares162.1M23.2M160.0M+21.2M (+15.3%)
Value$27.2B$3.89B$29.6B+$6.29B (+27.0%)

17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (142)

Institutions that held Atmos Energy Corp at the end of Q1 2026 but not at the end of Q4 2025.

Showing the largest 100 of 142 by value.

Institutions new to ATO in Q1 2026
InstitutionSharesValue% of portfolio
Vanguard Capital Management LLC10,735,547$1.98B0.05%
Vanguard Portfolio Management LLC9,285,633$1.72B0.09%
Capital Research Global Investors4,010,550$740.8M0.11%
Vanguard Fiduciary Trust Co930,642$171.9M0.04%
Vanguard Global Advisers, LLC360,844$66.7M0.04%
Vanguard Asset Management, Ltd303,715$56.1M0.05%
Vanguard Investments Australia, Ltd.156,854$29.0M0.08%
SEB Asset Management AB77,947$14.4M0.06%
CIBC Bancorp USA Inc.38,468$7.11M0.01%
Occudo Quantitative Strategies LP34,559$6.57M0.36%
TrueMark Investments, LLC33,378$6.17M1.20%
Opal Capital LLC33,313$6.15M1.09%
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund32,500$6.00M0.03%
Oppenheimer & Co Inc27,967$5.17M0.06%
United Bank27,421$5.07M0.65%
Harrison Street Private Wealth LLC26,860$4.96M6.57%
Oppenheimer Asset Management Inc.23,848$4.41M0.05%
Ieq Capital, LLC16,964$3.13M0.01%
Prudential PLC14,975$2.77M0.02%
Entropy Technologies, LP13,847$2.56M0.12%
Brendel Financial Advisors LLC13,644$2.52M1.25%
Delta Global Management LP13,561$2.50M0.21%
Park Avenue Securities LLC13,147$2.43M0.02%
Banque Pictet & Cie SA12,314$2.27M0.03%
Gallo Partners, LP10,671$1.97M3.77%
Schonfeld Strategic Advisors LLC10,480$1.94M0.02%
Quadrature Capital Ltd8,738$1.61M0.02%
Brevan Howard Capital Management LP8,038$1.48M0.02%
Millington Securities, LLC7,085$1.31M0.36%
Empowered Funds, LLC7,049$1.30M0.01%
Goelzer Investment Management, Inc.6,737$1.24M0.06%
Empirical Asset Management, LLC6,561$1.21M0.32%
Holocene Advisors, LP6,502$1.20M0.00%
Osmosis Investment Management UK Ltd6,436$1.19M0.03%
Panagora Asset Management Inc6,400$1.18M0.00%
Saudi Central Bank5,970$1.10M0.02%
Gateway Wealth Partners, LLC5,666$1.05M0.04%
Friedenthal Financial5,283$975.9K0.49%
Tiaa-Cref Individual & Institutional Services, LLC5,082$938.7K0.00%
Fulcrum Asset Management LLP4,914$909.2K0.14%
Aigen Investment Management, LP3,876$716.0K0.18%
Atom Investors LP3,449$637.1K0.05%
Lebenthal Global Advisors, LLC3,364$621.4K0.09%
Excelsior Advisor Network LLC3,015$556.9K0.21%
Sageworth Trust Co2,978$550.1K0.02%
Mount Yale Investment Advisors, LLC2,890$533.9K0.01%
49 Wealth Management, LLC2,812$519.4K0.04%
Argus Investors' Counsel, Inc.2,759$509.6K0.45%
Great Lakes Retirement, Inc.2,759$509.6K0.05%
Brighton Jones LLC2,743$506.7K0.01%
Virtu Financial LLC2,555$472.0K0.02%
Lombard Odier Asset Management (Switzerland) SA2,500$461.8K0.02%
Sivia Capital Partners, LLC2,425$447.9K0.09%
Quadcap Wealth Management, LLC2,341$432.4K0.05%
Buckingham Strategic Partners2,259$417.5K0.00%
Glenview Trust Co2,236$413.0K0.01%
Sovereign Investment Advisors, LLC2,006$370.5K0.08%
Waddell & Associates, LLC1,966$363.2K0.02%
IMC-Chicago, LLC1,936$357.6K0.01%
Voloridge Investment Management, LLC1,921$354.8K0.00%
Lifeworks Advisors, LLC1,919$354.4K0.05%
Farringdon Capital, Ltd.1,819$336.0K0.07%
Kiley Juergens Wealth Management, LLC1,705$314.9K0.06%
Dickmeyer Boyce Financial Management, Inc.1,669$308.3K0.18%
Advyzon Investment Management, LLC1,637$302.4K0.03%
Bull Harbor Capital LLC1,636$302.2K0.08%
Daymark Wealth Partners, LLC1,627$300.5K0.01%
BTS Asset Management, Inc.1,581$292.1K1.13%
Phillips Wealth Planners LLC1,600$291.4K0.22%
Gsa Capital Partners LLP1,510$279.0K0.02%
TFR Capital, LLC.1,448$267.5K0.08%
CIBC World Markets Inc.1,406$259.7K0.00%
Trueblood Wealth Management, LLC1,404$259.3K0.10%
Koshinski Asset Management, Inc.1,392$257.1K0.02%
Symphony Financial, Ltd. Co.1,373$252.0K0.03%
Roehl & Yi Investment Advisors, LLC1,360$251.2K0.09%
Change Path, LLC1,301$240.3K0.01%
Envestnet Portfolio Solutions, Inc.1,292$238.7K0.00%
RiverFront Investment Group, LLC1,274$235.3K0.00%
Teza Capital Management LLC1,264$233.5K0.85%
AlphaGrep UK Ltd1,261$232.9K0.07%
Fidelis Capital Partners, LLC1,252$231.3K0.02%
Camden Capital, LLC1,251$231.1K0.02%
RIA Advisory Group LLC1,192$220.1K0.05%
Evergreen Wealth Partners LLC1,189$219.7K0.17%
PCM Encore, LLC1,189$219.6K0.05%
Howe & Rusling Inc1,180$218.0K0.01%
Plan A Wealth LLC1,174$216.9K0.10%
Wedmont Private Capital1,141$216.4K0.01%
Regent Peak Wealth Advisors LLC1,170$216.1K0.04%
Angeles Wealth Management, LLC1,148$212.1K0.01%
Schmidt P J Investment Management Inc1,143$211.1K0.04%
Colony Family Offices, LLC1,135$209.7K0.05%
Savvy Advisors, Inc.1,131$208.9K0.01%
JB Capital LLC1,129$208.6K0.01%
CWA Asset Management Group, LLC1,127$208.2K0.01%
Carter Financial Group, INC.1,106$204.4K0.13%
FSA Advisors, Inc.1,094$202.0K0.13%
Maridea Wealth Management LLC1,091$201.5K0.03%
Supplemental Annuity Collective Trust of NJ1,087$200.8K0.06%

Sold out (85)

Institutions that held Atmos Energy Corp at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of ATO in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Mizuho Markets Americas LLC240,814$40.4M
Skandinaviska Enskilda Banken AB (publ)145,874$24.5M
Susquehanna Fundamental Investments, LLC80,229$13.4M
D. E. Shaw & Co., Inc.73,350$12.3M
Capital Fund Management S.A.38,632$6.48M
Rakuten Investment Management, Inc.21,117$3.56M
Adage Capital Partners GP, L.L.C.19,904$3.34M
XTX Topco Ltd17,434$2.92M
Diversify Advisory Services, LLC15,007$2.56M
LRT Capital Management, LLC13,197$2.21M
StoneX Group Inc.12,536$2.11M
Kentucky Retirement Systems9,935$1.67M
OmniStar Financial Group, Inc.9,848$1.65M
Scotia Capital Inc.9,203$1.54M
Pensionfund Sabic7,700$1.29M
Commerzbank Aktiengesellschaft7,477$1.25M
Picton Mahoney Asset Management7,274$1.22M
Jefferies Financial Group Inc.6,863$1.15M
Greenland Capital Management LP6,710$1.12M
Bridges Investment Management Inc5,940$995.7K
Mangrove Partners5,786$969.9K
111 Capital5,579$935.2K
Calton & Associates, Inc.5,262$882.0K
Marshall Wace, LLP5,026$842.5K
Fox Run Management, L.L.C.5,009$839.7K
Custom Index Systems, LLC4,704$788.5K
Blueshift Asset Management, LLC4,422$741.3K
Accredited Investors Inc.4,335$726.7K
Mirabella Financial Services LLP4,251$712.6K
Nelson, Van Denburg & Campbell Wealth Management Group, LLC4,079$683.8K
MQS Management LLC3,972$665.8K
Keel Point, LLC3,209$537.9K
LMR Partners LLP2,929$491.0K
Havemeyer Place LP2,619$439.0K
EntryPoint Capital, LLC2,371$397.5K
State of Wyoming2,338$391.9K
Visionary Horizons, LLC2,114$354.4K
Aster Capital Management (DIFC) Ltd1,976$331.2K
Two Sigma Securities, LLC1,945$326.0K
BCS Wealth Management1,926$322.8K
Index Technologies Group LLC1,910$320.2K
Asset Dedication, LLC1,885$316.0K
Parsonex Advisory Services, Inc.1,679$281.5K
Longboard Asset Management, LP1,678$281.3K
GKV Capital Management Co., Inc.1,600$268.2K
Stevens Capital Management LP1,571$263.0K
Quest Partners LLC1,391$233.2K
West Family Investments, Inc.1,380$231.3K
Abc Arbitrage SA1,339$224.5K
Empower Advisory Group, LLC1,313$220.1K
Eagle Bay Advisors LLC1,309$219.5K
nVerses Capital, LLC1,260$211.2K
Inlight Wealth Management, LLC1,000$167.6K
Laurel Wealth Advisors LLC632$105.9K
Simplex Trading, LLC624$104.6K
Elyxium Wealth, LLC441$73.9K
Sentry Investment Management LLC401$67.0K
Group One Trading, L.P.393$65.9K
Bank of New Hampshire375$62.9K
SageView Advisory Group, LLC186$31.1K
Garner Asset Management Corp150$25.1K
Cape Investment Advisory, Inc.149$25.0K
Anfield Capital Management, LLC144$24.1K
Vermillion & White Wealth Management Group, LLC109$18.4K
Barnes Dennig Private Wealth Management LLC104$17.4K
Meeder Asset Management Inc86$14.4K
Harbor Investment Advisory, LLC86$14.4K
Wealth Watch Advisors, INC81$13.6K
Solstein Capital, LLC59$9.89K
Howard Hughes Medical Institute34$5.70K
Cornerstone National Bank & Trust Co32$5.36K
Reyes Financial Architecture, Inc.22$3.69K
Flagship Harbor Advisors, LLC13$2.18K
IFC & Insurance Marketing, Inc.13$2.00K
Carolina Wealth Advisors, LLC10$1.68K
Valued Wealth Advisors LLC8$1.34K
Rakuten Securities, Inc.7$1.17K
Bridge Generations Wealth Management LLC6$1.01K
Optima Capital LLC6$1.01K
Kilter Group LLC5$839
Winnow Wealth LLC4$672
Ameriflex Group, Inc.4$671
Quattro Advisors LLC3$511
Atlantic Private Wealth, LLC2$337
Luken Investment Analytics, LLC1$168

Not filed for Q1 2026 yet (17)

Institutions that held Atmos Energy Corp at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATO in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc21,032,554$3.53B
Norges Bank1,977,131$331.4M
Forsta Ap-Fonden65,000$10.9M
CIBC World Markets Corp52,230$8.76M
Comerica Bank32,788$5.50M
Trust Co of Vermont14,145$2.37M
Meketa Investment Group Inc8,156$1.37M
SS&H Financial Advisors, Inc.5,565$933.0K
Global Retirement Partners, LLC3,786$634.7K
CIBC Private Wealth Group, LLC2,706$453.6K
Thomasville National Bank2,466$413.4K
MGB Wealth Management, LLC2,031$341.8K
ORG Partners LLC1,376$231.0K
DV Equities, LLC223$37.4K
Redmont Wealth Advisors LLC191$32.0K
Ransom Advisory, Ltd100$16.8K
Stephens Consulting, LLC1$168