Atmos Energy Corp

ATO

Exchange: NYSE
Industry: Natural Gas Distribution
SEC CIK: 0000731802

SEC filings (opens in a new tab)

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, Q3 2026

Institutional positions in Atmos Energy Corp as of Sep 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

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 10; 0 vs. Q2 2026
Shares held: 54.6K; −2.49K (−4.4%) vs. Q2 2026
Total value: $8.55M; −$1.29M (−13.1%) vs. Q2 2026
New holders: 1; 2 more added
Sold out: 1; 2 more reduced

1,034 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holders

Value held

Institutions holding ATO and their total value by quarter
Quarter	Holders	Value
Q2 2026	1,044	$28.0B
Q1 2026	1,020	$29.6B
Q4 2025	980	$27.2B
Q3 2025	912	$27.2B
Q2 2025	871	$24.7B
Q1 2025	861	$24.4B
Q4 2024	818	$21.8B
Q3 2024	758	$20.8B
Q2 2024	736	$16.7B
Q1 2024	731	$16.6B
Q4 2023	722	$15.8B
Q3 2023	669	$14.4B
Q2 2023	672	$15.8B
Q1 2023	664	$14.7B
Q4 2022	663	$14.6B
Q3 2022	631	$13.1B
Q2 2022	620	$14.2B
Q1 2022	608	$14.9B
Q4 2021	575	$12.4B
Q3 2021	536	$9.93B
Q2 2021	548	$10.5B
Q1 2021	550	$10.7B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding Atmos Energy Corp; share changes are against Q2 2026.

Institutions holding ATO in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Continuum Advisory, LLC	–	–	–	–	Not filed
Frazier Financial Advisors, LLC	–	–	–	–	Not filed
Edmond de Rothschild Holding S.A.	–	–	–	–	Not filed
GW&K Investment Management, LLC	–	–	–	–	Not filed
MV Capital Management, Inc.	–	–	–	–	Not filed
Cassaday & Co Wealth Management LLC	–	–	–	–	Not filed
NBT Bank N A	–	–	–	–	Not filed
Centennial Bank	–	–	–	–	Not filed
Bayforest Capital Ltd	–	–	–	–	Not filed
Roble, Belko & Company, Inc	–	–	–	–	Not filed
SHP Wealth Management	–	–	–	–	Not filed
Owl Creek Wealth Partners LLC	–	–	–	–	Not filed
TIAA Wealth Investment Management LLC	–	–	–	–	Not filed
Ossiam	–	–	–	–	Not filed
Fortitude Family Office, LLC	–	–	–	–	Not filed
Barnes Dennig Private Wealth Management LLC	–	–	–	–	Not filed
Oakworth Capital, Inc.	–	–	–	–	Not filed
Farmers & Merchants Investments Inc	–	–	–	–	Not filed
Advocate Investing Services LLC	–	–	–	–	Not filed
Sachetta, LLC	–	–	–	–	Not filed
DT Investment Partners, LLC	–	–	–	–	Not filed
Raleigh Capital Management Inc.	–	–	–	–	Not filed
Manchester Capital Management LLC	–	–	–	–	Not filed
Murphy & Mullick Capital Management Corp	–	–	–	–	Not filed
Institute for Wealth Management, LLC.	–	–	–	–	Not filed
LRI Investments, LLC	–	–	–	–	Not filed
Nemes Rush Group LLC	–	–	–	–	Not filed
Private Wealth Asset Management, LLC	–	–	–	–	Not filed
Oakmont Advisory Group, LLC	–	–	–	–	Not filed
Capital Advisors, Ltd. LLC	–	–	–	–	Not filed
Citizens National Bank Trust Department	–	–	–	–	Not filed
Financial Management Professionals, Inc.	–	–	–	–	Not filed
Key Financial Inc	–	–	–	–	Not filed
Basepoint Wealth LLC	–	–	–	–	Not filed
Glen Eagle Advisors, LLC	–	–	–	–	Not filed
Kemnay Advisory Services Inc.	–	–	–	–	Not filed
Capital Analysts, LLC	–	–	–	–	Not filed
Coston, McIsaac & Partners	–	–	–	–	Not filed
Richardson Financial Services Inc.	–	–	–	–	Not filed
Financially Speaking Inc	–	–	–	–	Not filed
Bell Investment Advisors, Inc	–	–	–	–	Not filed
Quest 10 Wealth Builders, Inc.	–	–	–	–	Not filed
Action Point Financial Planning, LLC	–	–	–	–	Not filed
Private Wealth Management Group, LLC	–	–	–	–	Not filed
Mosley Wealth Management	–	–	–	–	Not filed
Montgomery Financial Services LLC	–	–	–	–	Not filed
Pinnacle Wealth Planning Services, Inc.	–	–	–	–	Not filed
BOK Financial Private Wealth, Inc.	–	–	–	–	Not filed
North Star Investment Management Corp.	–	–	–	–	Not filed
Aspect Partners, LLC	–	–	–	–	Not filed
Alerus Financial NA	–	–	–	–	Not filed
AdvisorNet Financial, Inc	–	–	–	–	Not filed
Golden State Wealth Management, LLC	–	–	–	–	Not filed
Basecamp Wealth Advisors LLC	–	–	–	–	Not filed
Signature Equity Partners, LLC	–	–	–	–	Not filed
Greykasell Wealth Strategies, Inc.	–	–	–	–	Not filed
Silver Grove Financial Group, Inc.	–	–	–	–	Not filed
Markowski Investments	–	–	–	–	Not filed
Avion Wealth	–	–	–	–	Not filed
First Pacific Financial	–	–	–	–	Not filed
Brown, Lisle/Cummings, Inc.	–	–	–	–	Not filed
Bangor Savings Bank	–	–	–	–	Not filed
Joseph Group Capital Management	–	–	–	–	Not filed
First Horizon Corp	–	–	–	–	Not filed
Salomon & Ludwin, LLC	–	–	–	–	Not filed
Clear Street Markets LLC	–	–	–	–	Not filed
Plante Moran Financial Advisors, LLC	–	–	–	–	Not filed
Cornerstone Planning Group LLC	–	–	–	–	Not filed
JPL Wealth Management, LLC	–	–	–	–	Not filed
E Fund Management (Hong Kong) Co., Ltd.	–	–	–	–	Not filed
Networth Advisors, LLC	–	–	–	–	Not filed
Johnson Financial Group, Inc.	–	–	–	–	Not filed
Bogart Wealth, LLC	–	–	–	–	Not filed
Morse Asset Management, Inc	–	–	–	–	Not filed
Montag A & Associates Inc	–	–	–	–	Not filed
TSFG, LLC	–	–	–	–	Not filed
Truvestments Capital LLC	–	–	–	–	Not filed
Fulcrum Asset Management LLP	–	–	–	–	Not filed
Rossby Financial, LCC	–	–	–	–	Not filed
Lodestone Wealth Management LLC	–	–	–	–	Not filed
Crewe Advisors LLC	–	–	–	–	Not filed
Rialto Wealth Management, LLC	–	–	–	–	Not filed
City State Bank	–	–	–	–	Not filed
Millstone Evans Group, LLC	–	–	–	–	Not filed
Mowery & Schoenfeld Wealth Management, LLC	–	–	–	–	Not filed
Key Capital Management, INC	–	–	–	–	Not filed
TD Capital Management LLC	–	–	–	–	Not filed
UMA Financial Services, Inc.	–	–	–	–	Not filed
Bay Harbor Wealth Management, LLC	–	–	–	–	Not filed
Granite FO LLC	–	–	–	–	Not filed
Tounjian Advisory Partners, LLC	–	–	–	–	Not filed
DiNuzzo Private Wealth, Inc.	–	–	–	–	Not filed
J.Safra Asset Management Corp	–	–	–	–	Not filed
West Paces Advisors Inc.	–	–	–	–	Not filed
Raffa Wealth Management, LLC	–	–	–	–	Not filed
First Command Advisory Services, Inc.	–	–	–	–	Not filed
FWL Investment Management, LLC	–	–	–	–	Not filed
Group One Trading, L.P.	–	–	–	–	Not filed
Creative Capital Management Investments LLC	–	–	–	–	Not filed
REAP Financial Group, LLC	–	–	–	–	Not filed