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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
Ashton Thomas Securities, LLC2,398$413.1K0.06%+1,034+75.8%Added
RMB Capital Management, LLC2,405$414.3K0.01%+2,405New
Thomasville National Bank2,410$415.2K0.02%+2,410New
Thoroughbred Financial Services, LLC2,433$419.0K0.02%−57−2.3%Reduced
Sowell Financial Services LLC2,487$428.5K0.01%+173+7.5%Added
Level Four Advisory Services, LLC2,529$435.7K0.01%+161+6.8%Added
Everpar Advisors LLC2,531$436.0K0.12%−226−8.2%Reduced
Ferguson Wellman Capital Management, Inc2,573$443.3K0.01%+2,573New
Fi3 FINANCIAL ADVISORS, LLC5,724$445.3K0.13%+5,724New
Whittier Trust Co of Nevada Inc2,510$445.7K0.01%−121−4.6%Reduced
Horizon Investment Services, LLC2,618$451.1K0.13%−15−0.6%Reduced
Laird Norton Trust Company, LLC2,626$452.4K0.01%−74−2.7%Reduced
Walker Asset Management, LLC2,635$453.9K0.23%+15+0.6%Added
TCW Group Inc2,642$455.1K0.00%−88−3.2%Reduced
AlphaCore Capital LLC2,643$455.3K0.01%+1,415+115.2%Added
Ballentine Partners, LLC2,654$457.2K0.01%−163−5.8%Reduced
Catalytic Wealth RIA, LLC2,661$458.4K0.03%+41+1.6%Added
Wagner Wealth Management, Corp2,693$463.9K0.37%−76−2.7%Reduced
Pallas Capital Advisors LLC2,699$465.0K0.01%+2,699New
Journey Retirement Planning & Investment Management LLC2,704$465.9K0.36%+2,704New
Grimes & Company, Inc.2,709$466.7K0.01%+8+0.3%Added
Quarry LP2,713$467.4K0.07%+382+16.4%Added
AlphaGrep UK Ltd2,740$472.0K0.14%+1,479+117.3%Added
Aaron Wealth Advisors2,750$473.7K0.02%+489+21.6%Added
Cooke & Bieler LP2,752$474.1K0.01%−190−6.5%Reduced
Argus Investors' Counsel, Inc.2,758$475.1K0.37%−10.0%Reduced
Great Lakes Retirement, Inc.2,758$475.1K0.04%−10.0%Reduced
Beaird Harris Wealth Management, LLC2,783$479.4K0.03%00.0%Unchanged
Garrett Wealth Advisory Group, LLC2,791$480.9K0.07%−35−1.2%Reduced
Osmosis Investment Management UK Ltd2,793$481.1K0.02%−3,643−56.6%Reduced
South Dakota Investment Council2,800$482.0K0.01%+2,800New
Tower Research Capital LLC (TRC)2,811$484.3K0.01%−971−25.7%Reduced
Walleye Trading LLC2,825$486.7K0.01%+965+51.9%Added
Evolve Private Wealth, LLC2,848$490.6K0.03%−877−23.5%Reduced
Dorsey & Whitney Trust CO LLC2,852$491.3K0.02%−30−1.0%Reduced
Caxton Associates LLP2,867$493.9K0.01%+2,867New
Silver Oak Securities, Inc2,890$497.8K0.03%+280+10.7%Added
Mitchell McLeod Pugh & Williams Inc2,893$498.4K0.06%00.0%Unchanged
R Squared Ltd2,954$508.9K0.27%+2,954New
Adviser Investments LLC2,967$511.1K0.00%+4+0.1%Added
Quadrant Capital Group LLC2,971$511.8K0.01%+33+1.1%Added
Pensionmark Financial Group, LLC2,861$518.1K0.01%+4+0.1%Added
Atlantic Union Bankshares Corp3,017$519.7K0.01%−716−19.2%Reduced
Syon Capital LLC3,039$523.5K0.02%+49+1.6%Added
Harbour Investments, Inc.3,054$526.2K0.01%−50−1.6%Reduced
Bartlett & Co. Wealth Management LLC3,105$534.9K0.01%−11−0.4%Reduced
BNP Paribas3,117$537.0K0.01%+895+40.3%Added
Westwood Holdings Group Inc.3,130$539.2K0.00%+3,130New
EverSource Wealth Advisors, LLC3,146$541.9K0.02%+610+24.1%Added
Oxford Asset Management LLP3,164$545.1K0.27%+3,164New
IFP Advisors, Inc3,178$547.5K0.01%+1,468+85.8%Added
Norden Group LLC3,181$547.8K0.04%+940+41.9%Added
Global X Japan Co., Ltd.3,226$555.7K0.02%−344−9.6%Reduced
Beto Financial Group, LLC3,144$557.5K0.29%+7+0.2%Added
Candriam Luxembourg S.C.A.3,268$562.4K0.00%+229+7.5%Added
MQS Management LLC3,278$564.7K0.69%+3,278New
NewEdge Wealth, LLC3,300$568.5K0.01%+1,209+57.8%Added
Apeiron RIA LLC3,318$571.6K0.15%+7+0.2%Added
Novare Capital Management LLC3,325$572.8K0.04%−115−3.3%Reduced
AssuredPartners Investment Advisors, LLC3,326$573.0K0.06%−162−4.6%Reduced
NorthCrest Asset Manangement, LLC3,286$574.1K0.01%+3,286New
Allred Capital Management, LLC3,338$575.1K0.19%00.0%Unchanged
Mission Wealth Management, LP3,353$577.7K0.01%+3,353New
StoneX Group Inc.3,346$582.3K0.02%+3,346New
Venture Visionary Partners LLC3,384$583.1K0.02%−36−1.1%Reduced
Aptus Capital Advisors, LLC3,394$584.7K0.00%−5−0.1%Reduced
Cynosure Management, LLC3,395$584.9K0.09%+3,395New
Thurston, Springer, Miller, Herd & Titak, Inc.3,422$589.5K0.21%+276+8.8%Added
Fullerton Fund Management Co Ltd.3,428$590.5K0.04%+3,428New
Banco Bilbao Vizcaya Argentaria, S.A.3,441$592.3K0.00%−1,291−27.3%Reduced
Signaturefd, LLC3,439$592.4K0.01%+326+10.5%Added
Mainstay Capital Management LLC3,457$595.5K0.04%00.0%Unchanged
New Hampshire Trust3,458$595.7K0.11%00.0%Unchanged
Polymer Capital Management (US) LLC3,458$595.7K0.09%+3,458New
Ofi Invest Asset Management3,467$597.3K0.01%+484+16.2%Added
Portfolio Design Labs, LLC3,480$599.5K0.10%−45−1.3%Reduced
Transcend Wealth Collective, LLC3,490$601.2K0.04%+1,257+56.3%Added
Plato Investment Management Ltd3,520$602.9K0.03%−2,212−38.6%Reduced
Confluence Wealth Services, Inc.3,509$604.5K0.02%+640+22.3%Added
Bessemer Group Inc3,550$611.0K0.00%+395+12.5%Added
Global Retirement Partners, LLC3,547$611.0K0.01%+3,547New
Davenport & Co LLC3,553$612.0K0.00%−206−5.5%Reduced
RSM US Wealth Management LLC3,581$616.9K0.01%−319−8.2%Reduced
Bridgewater Associates, LP3,587$617.9K0.00%+3,587New
Revisor Wealth Management LLC3,632$625.7K0.15%+116+3.3%Added
Ostrum Asset Management3,677$633.4K0.03%00.0%Unchanged
Greenleaf Trust3,687$635.2K0.01%+39+1.1%Added
Canada Post Corp Registered Pension Plan3,708$638.8K0.02%00.0%Unchanged
TD Waterhouse Canada Inc.3,700$640.2K0.00%−122−3.2%Reduced
Empirical Asset Management, LLC3,723$641.3K0.14%−2,838−43.3%Reduced
Centiva Capital, LP3,775$650.3K0.02%+973+34.7%Added
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management3,778$650.8K0.01%+1,167+44.7%Added
Sigma Planning Corp3,818$657.8K0.02%−16−0.4%Reduced
Brown Brothers Harriman & Co3,826$659.1K0.00%+541+16.5%Added
JBR Co Financial Management Inc3,845$662.4K0.24%−560−12.7%Reduced
Focused Alpha, LLC3,873$667.1K0.17%+6+0.2%Added
Farther Finance Advisors, LLC3,870$668.1K0.01%+199+5.4%Added
CoreCap Advisors, LLC3,934$677.7K0.02%+774+24.5%Added
Patten Group, Inc.3,944$679.4K0.11%+995+33.7%Added
Lebenthal Global Advisors, LLC3,952$680.9K0.09%+588+17.5%Added