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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
Syon Capital LLC3,039$523.5K0.02%+49+1.6%Added
Atlantic Union Bankshares Corp3,017$519.7K0.01%−716−19.2%Reduced
Pensionmark Financial Group, LLC2,861$518.1K0.01%+4+0.1%Added
Quadrant Capital Group LLC2,971$511.8K0.01%+33+1.1%Added
Adviser Investments LLC2,967$511.1K0.00%+4+0.1%Added
R Squared Ltd2,954$508.9K0.27%+2,954New
Mitchell McLeod Pugh & Williams Inc2,893$498.4K0.06%00.0%Unchanged
Silver Oak Securities, Inc2,890$497.8K0.03%+280+10.7%Added
Caxton Associates LLP2,867$493.9K0.01%+2,867New
Dorsey & Whitney Trust CO LLC2,852$491.3K0.02%−30−1.0%Reduced
Evolve Private Wealth, LLC2,848$490.6K0.03%−877−23.5%Reduced
Walleye Trading LLC2,825$486.7K0.01%+965+51.9%Added
Tower Research Capital LLC (TRC)2,811$484.3K0.01%−971−25.7%Reduced
South Dakota Investment Council2,800$482.0K0.01%+2,800New
Osmosis Investment Management UK Ltd2,793$481.1K0.02%−3,643−56.6%Reduced
Garrett Wealth Advisory Group, LLC2,791$480.9K0.07%−35−1.2%Reduced
Beaird Harris Wealth Management, LLC2,783$479.4K0.03%00.0%Unchanged
Argus Investors' Counsel, Inc.2,758$475.1K0.37%−10.0%Reduced
Great Lakes Retirement, Inc.2,758$475.1K0.04%−10.0%Reduced
Cooke & Bieler LP2,752$474.1K0.01%−190−6.5%Reduced
Aaron Wealth Advisors2,750$473.7K0.02%+489+21.6%Added
AlphaGrep UK Ltd2,740$472.0K0.14%+1,479+117.3%Added
Quarry LP2,713$467.4K0.07%+382+16.4%Added
Grimes & Company, Inc.2,709$466.7K0.01%+8+0.3%Added
Journey Retirement Planning & Investment Management LLC2,704$465.9K0.36%+2,704New
Pallas Capital Advisors LLC2,699$465.0K0.01%+2,699New
Wagner Wealth Management, Corp2,693$463.9K0.37%−76−2.7%Reduced
Catalytic Wealth RIA, LLC2,661$458.4K0.03%+41+1.6%Added
Ballentine Partners, LLC2,654$457.2K0.01%−163−5.8%Reduced
AlphaCore Capital LLC2,643$455.3K0.01%+1,415+115.2%Added
TCW Group Inc2,642$455.1K0.00%−88−3.2%Reduced
Walker Asset Management, LLC2,635$453.9K0.23%+15+0.6%Added
Laird Norton Trust Company, LLC2,626$452.4K0.01%−74−2.7%Reduced
Horizon Investment Services, LLC2,618$451.1K0.13%−15−0.6%Reduced
Whittier Trust Co of Nevada Inc2,510$445.7K0.01%−121−4.6%Reduced
Fi3 FINANCIAL ADVISORS, LLC5,724$445.3K0.13%+5,724New
Ferguson Wellman Capital Management, Inc2,573$443.3K0.01%+2,573New
Everpar Advisors LLC2,531$436.0K0.12%−226−8.2%Reduced
Level Four Advisory Services, LLC2,529$435.7K0.01%+161+6.8%Added
Sowell Financial Services LLC2,487$428.5K0.01%+173+7.5%Added
Thoroughbred Financial Services, LLC2,433$419.0K0.02%−57−2.3%Reduced
Thomasville National Bank2,410$415.2K0.02%+2,410New
RMB Capital Management, LLC2,405$414.3K0.01%+2,405New
Ashton Thomas Securities, LLC2,398$413.1K0.06%+1,034+75.8%Added
Certior Financial Group, LLC2,396$412.8K0.23%+2,396New
Ledyard National Bank2,389$411.6K0.03%−294−11.0%Reduced
Strategy Asset Managers LLC2,385$410.8K0.06%−86−3.5%Reduced
Everett Harris & Co2,382$410.3K0.01%00.0%Unchanged
Groupe la Francaise2,364$407.2K0.01%+2,364New
Harvest Investment Services, LLC2,358$406.2K0.06%−17−0.7%Reduced
Siemens Fonds Invest GmbH2,350$404.8K0.02%+11+0.5%Added
Quadcap Wealth Management, LLC2,332$401.7K0.04%−9−0.4%Reduced
Cinctive Capital Management LP2,328$401.0K0.02%+2,328New
Miracle Mile Advisors, LLC2,315$398.7K0.00%−21−0.9%Reduced
HighPoint Advisor Group LLC2,305$397.1K0.01%−31−1.3%Reduced
Motco2,294$395.2K0.03%+1,004+77.8%Added
LBMC Investment Advisors, LLC2,282$393.1K0.02%+35+1.6%Added
Smartleaf Asset Management LLC2,244$392.4K0.01%00.0%Unchanged
Kera Capital Partners, Inc.2,271$391.2K0.04%+381+20.2%Added
W.H. Cornerstone Investments Inc.2,255$388.4K0.22%−1,706−43.1%Reduced
Glenview Trust Co2,233$384.7K0.01%−3−0.1%Reduced
IHT Wealth Management, LLC2,228$383.9K0.01%+49+2.2%Added
Oak Asset Management, LLC2,225$383.3K0.12%−50−2.2%Reduced
Argent Trust Co2,209$380.5K0.01%00.0%Unchanged
Fulton Breakefield Broenniman LLC2,207$380.2K0.02%−20−0.9%Reduced
Trueblood Wealth Management, LLC2,204$379.7K0.13%+800+57.0%Added
J.W. Cole Advisors, Inc.2,197$378.5K0.01%−1,001−31.3%Reduced
Personal Cfo Solutions, LLC2,192$377.7K0.05%−1,376−38.6%Reduced
Gleason Group, Inc.2,192$377.6K0.03%+70+3.3%Added
Stephens Inc2,186$376.6K0.00%+254+13.1%Added
Gen-Wealth Partners Inc2,184$376.2K0.10%−200−8.4%Reduced
CMG Global Holdings, LLC2,175$374.7K0.16%00.0%Unchanged
Equitable Trust Co2,172$374.2K0.02%−193−8.2%Reduced
Daymark Wealth Partners, LLC2,160$372.1K0.01%+533+32.8%Added
Kingswood Wealth Advisors, LLC2,141$368.9K0.01%+293+15.9%Added
We Are One Seven, LLC2,140$368.7K0.01%+363+20.4%Added
Advisory Alpha, LLC2,138$368.4K0.01%+2,138New
Cary Street Partner Investment Advisory LLC2,137$368.2K0.07%+233+12.2%Added
Spire Wealth Management2,104$362.6K0.01%+2,056+4,283.3%Added
PFG Investments, LLC2,099$361.6K0.01%−101−4.6%Reduced
Camden Capital, LLC2,092$360.3K0.02%+841+67.2%Added
Signature Estate & Investment Advisors LLC2,043$352.0K0.01%−101−4.7%Reduced
Elm3 Financial Group, LLC2,032$350.1K0.24%−393−16.2%Reduced
Independent Wealth Network Inc.2,032$350.0K0.09%−102−4.8%Reduced
CAPROCK Group, Inc.2,019$347.8K0.01%+827+69.4%Added
Perigon Wealth Management, LLC2,015$347.1K0.01%+345+20.7%Added
Sovereign Investment Advisors, LLC2,006$345.6K0.06%00.0%Unchanged
Tributary Capital Management, LLC1,995$343.7K0.03%00.0%Unchanged
Fifth Third Wealth Advisors LLC1,992$343.2K0.01%+282+16.5%Added
Turtle Creek Wealth Advisors, LLC1,986$342.1K0.02%−143−6.7%Reduced
Redmond Asset Management, LLC1,950$335.9K0.08%00.0%Unchanged
RFG Holdings, Inc.1,940$334.3K0.07%+16+0.8%Added
EFG International AG1,937$333.7K0.01%+71+3.8%Added
Sentinus, LLC1,935$333.3K0.03%+1,935New
Schnieders Capital Management, LLC.1,925$331.6K0.04%−25−1.3%Reduced
EP Wealth Advisors, LLC1,924$331.5K0.00%+300+18.5%Added
AA Financial Advisors, LLC1,919$330.6K0.04%+162+9.2%Added
Frec Markets, Inc.1,919$330.6K0.03%+301+18.6%Added
Wedbush Securities Inc1,912$329.0K0.01%−499−20.7%Reduced
Baker Avenue Asset Management, LP1,905$328.2K0.01%+1,905New