ATO

ATMOS ENERGY CORP

Natural Gas DistributionNYSELarge accelerated filer

Total Trades

Buys

Sells

Largest Trade

$1M+

Insiders

Institutional Funds

867

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
DONOHUE SEAN	Director	SELL	$50K–$100K	450	$171.15	Dec 4, 2025
COCKLIN KIM R	Director	SELL	$1M+	15K	$150.98	May 15, 2025
Geiser Edward	Director	BUY	$100K–$500K	3K	$144.89	Nov 12, 2024
COCKLIN KIM R	Director	SELL	$1M+	15K	$116.46	Mar 28, 2024
THOMAS RICHARD M	VICE PRESIDENT & C…	SELL	$100K–$500K	2K	$114.20	Nov 17, 2023
COCKLIN KIM R	Director	SELL	$1M+	13K	$110.99	Nov 8, 2023
COCKLIN KIM R	Director	SELL	$1M+	13K	$117.44	Aug 8, 2023
WALTERS DIANA J	Director	SELL	$15K–$50K	390	$117.50	May 5, 2023
COCKLIN KIM R	Director	SELL	$1M+	13K	$114.54	May 3, 2023
COCKLIN KIM R	Director	SELL	$1M+	13K	$117.14	Feb 8, 2023
THOMAS RICHARD M	VICE PRESIDENT & C…	SELL	$100K–$500K	1K	$110.37	Nov 15, 2022
MCDILL JOHN S	SR VP	EXERCISE	$100K–$500K	2K	$104.53	Nov 10, 2022
MCDILL JOHN S	SR VP	SELL	<$1K	2	$101.04	Nov 10, 2022
Forsythe Christopher T	SR VICE PRESIDENT …	SELL	<$1K	0	$105.00	May 10, 2022
Forsythe Christopher T	SR VICE PRESIDENT …	EXERCISE	$100K–$500K	4K	$114.33	May 10, 2022
THOMAS RICHARD M	VICE PRESIDENT & C…	SELL	$100K–$500K	950	$106.61	Feb 11, 2022

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13F filings as of Dec 31, 2025 · 867 funds holding

Fund	Shares	Value	Type
VANGUARD GROUP INC	19.4M	$1M+	SH
Capital International Investors	11.9M	$1M+	SH
STATE STREET CORP	10.8M	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	3.7M	$1M+	SH
NORGES BANK	2.0M	$1M+	SH
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	1.5M	$1M+	SH
Perpetual Ltd	1.4M	$1M+	SH
SFMG, LLC	1.1M	$1M+	SH
Pictet Asset Management Holding SA	1.1M	$1M+	SH
AMERICAN CENTURY COMPANIES INC	1.0M	$1M+	SH
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	981K	$1M+	SH
ProShare Advisors LLC	949K	$1M+	SH
PNC FINANCIAL SERVICES GROUP, INC.	754K	$1M+	SH
RAYMOND JAMES FINANCIAL INC	735K	$1M+	SH
GQG Partners LLC	704K	$1M+	SH
HSBC HOLDINGS PLC	697K	$1M+	SH
COHEN & STEERS, INC.	671K	$1M+	SH
DUFF & PHELPS INVESTMENT MANAGEMENT CO	652K	$1M+	SH
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	1.0M	$1M+	SH
PFA Pension, Forsikringsaktieselskab	639K	$1M+	SH