Atmos Energy Ownership | Who Owns Atmos Energy?

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Atmos Energy Ownership Summary

Atmos Energy is owned by 98.24% institutional investors, 0.40% insiders, and 1.36% retail investors. Vanguard group is the largest institutional shareholder, holding 12.93% of ATO shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.17% of its assets in Atmos Energy shares.

ATO Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Atmos Energy	98.24%	0.40%	1.36%
Sector	Utilities Stocks	157.41%	7.04%	-64.45%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	21.03M	12.93%	$3.53B
Blackrock funding, inc. /de	15.24M	9.15%	$2.62B
Blackrock	13.19M	8.72%	$1.54B
State street	11.38M	6.84%	$1.96B
Vanguard capital management	10.89M	6.54%	$1.88B
Wellington management group llp	9.19M	5.52%	$1.58B
Capital investors	7.48M	4.50%	$1.29B
Geode capital management	4.49M	2.70%	$770.33M
Bank of america corp /de/	4.18M	2.51%	$720.21M
Invesco	3.17M	1.91%	$546.75M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Sfmg	1.06M	11.00%	$182.67M
Versus capital advisors	26.45K	6.42%	$4.56M
Nilsine partners	485.27K	5.78%	$83.60M
Meketa investment group inc /adv	8.16K	4.62%	$1.37M
Paradiem	82.42K	3.06%	$14.20M
Perpetual	1.13M	2.79%	$195.24M
Partners group	230.84K	2.71%	$39.77M
Pensioenfonds rail & ov	304.40K	2.66%	$35.51M
Gallo partners, lp	6.43K	2.46%	$1.11M
Cbre investment management listed real assets	999.55K	2.40%	$172.19M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	2.08M	0.04%	2.08M
Qube research	2.14M	0.34%	2.05M
Aqr capital management	2.37M	0.14%	1.55M
Point72 asset management	1.36M	0.26%	1.36M
Sixth street partners management company	1.06M	0.02%	1.06M

Top Sellers

Holder	Shares	% Assets	Change
Aristotle capital management	33.90K	0.01%	-4.83M
Capital research global investors	1.51M	0.04%	-2.50M
Blackrock funding, inc. /de	15.24M	0.04%	-2.21M
Wellington management group llp	9.19M	0.27%	-465.68K
Sei investments	192.47K	0.03%	-320.36K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	2.08M	0.04%	2.08M	$358.19M
Point72 asset management	1.36M	0.26%	1.36M	$234.49M
Sixth street partners management company	1.06M	0.02%	1.06M	$182.55M
Ontario teachers pension plan board	586.17K	0.64%	586.17K	$100.98M
Curated wealth partners	277.39K	0.04%	277.39K	$321.69K

Sold Out

Holder	Change
Luken investment analytics	-1.00
Scarborough advisors	-1.00
Atlantic private wealth	-2.00
Gitterman wealth management	-2.00
Old second national bank of aurora	-2.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2026	1,041	1.46%	163,534,827	2.21%	98	1.06%	545	-1.09%	338	11.18%
Mar 31, 2026	631	-35.87%	51,932,187	-67.93%	31	0.32%	325	-34.74%	178	-42.21%
Dec 31, 2025	812	-11.64%	118,665,736	-25.58%	72	0.73%	395	-17.71%	264	-
Sep 30, 2025	878	0.69%	157,348,917	-1.72%	98	0.98%	454	-0.87%	255	-5.56%
Jun 30, 2025	856	-1.04%	160,060,366	2.42%	100	1.04%	454	-1.73%	265	2.71%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	5.30M	3.17%	36.55K
Vanguard Morn Total Stk Mkt Idx Investor	5.30M	3.17%	36.55K
Vanguard MStar Total Stk Mkt Idx Invest	5.31M	3.14%	13.08K
Vanguard US Total Market Shares ETF	4.90M	3.09%	99.50K
Vanguard Institutional 500 Index Trust	4.51M	2.84%	28.47K
Vanguard 500 Index Investor	4.38M	2.59%	45.50K
Vanguard Small Cap Index	3.84M	2.27%	9.32K
Capital Group Fundamental Invtrs Comp	3.12M	1.87%	64.00K
American Funds Fundamental Invs A	3.12M	1.87%	64.00K
State Street®UtilSelSectSPDR®ETF	2.78M	1.64%	18.69K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 11, 2026	WARE WILLIAM JAMES	-	Buy	$50.28K
Dec 03, 2025	DONOHUE SEAN	-	Sell	$77.02K
May 14, 2025	COCKLIN KIM R	-	Sell	$2.26M
Nov 11, 2024	Geiser Edward	-	Buy	$362.23K
May 16, 2024	WALTERS DIANA J	-	Sell	$47.20K

Insider Transactions Trends

Date	Buy	Sell
2026 Q3	1	-
2026 Q2	-	-
2026 Q1	-	-
2025 Q4	-	1
2025 Q3	-	-

ATO Ownership FAQ

Who owns the most shares of Atmos Energy?

Atmos Energy’s largest shareholders are Vanguard group (21.03M shares, 12.93%), Blackrock funding, inc. /de (15.24M shares, 9.15%), and Blackrock (13.19M shares, 8.72%). Together, they hold 30.80% of Atmos Energy’s total shares outstanding.

Does Blackrock own Atmos Energy?

Yes, BlackRock owns 8.72% of Atmos Energy, totaling 13.19M shares as of Jun 2024. This represents 0.03% of BlackRock's total assets, with a market value of 1.54B$. In the last quarter, BlackRock increased its holdings by 115.47K shares, a 0.88% change.

Who is Atmos Energy’s biggest shareholder by percentage of total assets invested?

Sfmg is Atmos Energy’s biggest shareholder by percentage of total assets invested, with 11.00% of its assets in 1.06M Atmos Energy shares, valued at 182.67M$.

Who is the top mutual fund holder of Atmos Energy shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Atmos Energy shares, with 3.17% of its total shares outstanding invested in 5.3M Atmos Energy shares.

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