Atmos Energy ATO Institutional Ownership

NYSE ATO

$156.54 -1.06 (-0.67%)

As of: Sep 30, 2026 · 3:59 PM EDT

Institutions by Trading Activity

1,047 Institutions

Increased 547 52.2%

Unchanged 157 15.0%

Reduced 343 32.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

97.75%

▲+2.12 pp QoQ

Shares Held by Institutions

164.56Mn

of 168.35Mn outstanding

▲+3.62% QoQ

Shares Outstanding

168.35Mn

3.79Mn held outside 13F filers

Institutional Investors

1,047

filed 13F for Jun 2026

▲+30 vs prior quarter

Net Shares Added (QoQ)

+5.74Mn

accumulated since last quarter

Value of Holdings

$25.93Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Atmos Energy Corp (NYSE:ATO) appears in 1,047 institutional 13F filings for the quarter ending June 2026.

Their combined ownership stood at 97.8% of outstanding shares in June 2026, up from 95.6% in March 2026.
They increased total shares held in Atmos Energy by 3.62% from the prior quarter, while the number of investors in ATO increased 20.21% year over year.
Of these 1,047 funds, 547 grew their exposure to Atmos Energy, 343 cut back, and 157 maintained positions.
The aggregate institutional position in Atmos Energy amounted to 164.56Mn shares as of June 2026, up by 5.74Mn shares quarter on quarter, and up 7.21Mn shares year over year.
As of June 30, 2026, BlackRock, Inc. held the largest stake in Atmos Energy with 15.24Mn shares, accounting for 9.05% of total shares outstanding.
The biggest buyers of Atmos Energy for the quarter ending June 2026 included NORGES BANK (2.08Mn), Qube Research & Technologies Ltd (2.05Mn), AQR CAPITAL MANAGEMENT LLC (1.55Mn), Point72 Asset Management, L.P. (1.36Mn), Sixth Street Partners Management Company, L.P. (1.06Mn).
The largest sellers of Atmos Energy for the quarter ending June 2026 were Aristotle Capital Management, LLC (4.83Mn), Capital Research Global Investors (2.5Mn), BlackRock, Inc. (2.21Mn), WELLINGTON MANAGEMENT GROUP LLP (465.68K), Sei Investments Co (320.36K).
Per Business Quant, the top 10 investors in ATO for the quarter ending June 2026 include BlackRock, Inc. (15.24Mn), State Street Corp (11.38Mn), VANGUARD CAPITAL MANAGEMENT LLC (10.89Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (9.36Mn), WELLINGTON MANAGEMENT GROUP LLP (9.19Mn), Capital International Investors (7.48Mn), GEODE CAPITAL MANAGEMENT, LLC (4.49Mn), Bank Of America Corp /De/ (4.18Mn), Invesco Ltd. (3.17Mn), Morgan Stanley (2.86Mn).

Form 13F Holdings

1,046 Institutional Holders

Report period 30 Jun, 2026

Total shares held 164.56Mn

Of outstanding 97.75%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	15,237,564	9.05%	▼2,214,399	-12.69%	$2.62Bn
2	State Street Corp	0000093751	11,380,060	6.76%	▲7,310	+0.06%	$1.96Bn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	10,885,153	6.47%	▲149,606	+1.39%	$1.88Bn
4	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	9,360,135	5.56%	▲74,502	+0.80%	$1.61Bn
5	WELLINGTON MANAGEMENT GROUP LLP	0000902219	9,185,788	5.46%	▼465,684	-4.83%	$1.58Bn
6	Capital International Investors	0001562230	7,483,012	4.45%	▲156,234	+2.13%	$1.29Bn
7	GEODE CAPITAL MANAGEMENT, LLC	0001214717	4,489,277	2.67%	▲152,281	+3.51%	$770.33Mn
8	Bank Of America Corp /De/	0000070858	4,180,718	2.48%	▼18,715	-0.45%	$720.21Mn
9	Invesco Ltd.	0000914208	3,173,775	1.89%	▲166,469	+5.54%	$546.75Mn
10	Morgan Stanley	0000895421	2,863,719	1.70%	▼137,467	-4.58%	$493.33Mn
11	DEUTSCHE BANK AG\	0000948046	2,505,816	1.49%	▼41,221	-1.62%	$431.68Mn
12	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	2,481,649	1.47%	▼233,458	-8.60%	$427.52K
13	AQR CAPITAL MANAGEMENT LLC	0001167557	2,373,903	1.41%	▲1,551,127	+188.52%	$408.95Mn
14	Goldman Sachs Group Inc	0000886982	2,165,784	1.29%	▲230,622	+11.92%	$373.10Mn
15	Qube Research & Technologies Ltd	0001729829	2,136,532	1.27%	▲2,053,901	+2,485.63%	$368.06Mn
16	NORGES BANK	0001374170	2,079,227	1.24%	▲2,079,227	0.00%	$358.19Mn
17	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	0000912938	1,842,583	1.09%	▲69,982	+3.95%	$321.41Mn
18	Amundi	0001330387	1,823,714	1.08%	▲520,828	+39.97%	$314.17Mn
19	CITADEL ADVISORS LLC	0001423053	1,736,405	1.03%	▲984,801	+131.03%	$299.13Mn
20	Legal & General Group Plc	0000764068	1,605,373	0.95%	▼11,007	-0.68%	$276.56Mn

Showing 1 to 20 of 1,046 holders