Atmos Energy Corporation ATO NYSE

NYSE • Utilities • Regulated Gas • US • USD

SharesGrow Score

60/100

3/7 Pass

SharesGrow Intrinsic Value

Atmos Energy Corporation (ATO) has 20 known insider and institutional holders on record. The largest holder is Haefner Michael E with 122,126 shares. Other notable holders include GREGORY LOUIS P and GORDON RICHARD K.

Over the last 12 months, insiders have made 44 transactions in ATO stock — 21 buys (valued at $33.44K) and 2 sells (valued at $2.34M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.

ATO Insider Ownership

Top Holder

Haefner Michael E

122,126 shares

Buys (12 mo)

$33.44K value

Sells (12 mo)

$2.34M value

12-Month Transaction Activity

Buy 48%

Sell 5%

Top Insider Holders

#	Name	Role	Shares Owned	Last Filed	Relative Size
1	Haefner Michael E	Past President & CEO	122,126	2019-11-08	100%
2	Gregory Louis P	Sr VP, Gc & Corp. Secretary	75,934	2016-12-19	62%
3	Gordon Richard K	Director	70,137	2024-03-12	57%
4	Quinn Nancy K	Director	65,575	2025-03-11	54%
5	Akers John K	President & CEO	43,215	2026-02-04	35%
6	Sampson Richard A	Director	30,124	2025-03-11	25%
7	Esquivel Ruben E	Director	29,106	2019-03-12	24%
8	Eckert Bret J	Sr Vice President & CFO	28,101	2016-11-10	23%
9	Sweetin Marvin L	Sr VP, Safety & Enterprise Ser	26,919	2016-11-10	22%
10	Best Robert W	Director	25,093	2021-03-09	21%
11	Ware Richard Ii	Director	19,235	2021-10-04	16%
12	Forsythe Christopher T	Sr Vice President & CFO	10,190	2026-02-04	8%
13	Grable Robert C	Director	10,092	2022-01-04	8%
14	Donohue Sean	Director	9,792	2026-03-10	8%
15	Yoho Frank H	Director	9,313	2026-03-10	8%
16	Park David J	Sr VP, Utility Operations	8,710	2021-05-05	7%
17	Bateman Jessica Walker	Sr VP, Gen Counsel, Corp Sec'y	7,695	2026-02-04	6%
18	Pulliam Jessica Bateman	Sr VP, Gen Counsel, Corp Sec'y	7,500	2025-01-16	6%
19	Mcdill John S	Sr VP, Utility Operations	7,010	2026-02-04	6%
20	Robbins J Matt	Sr VP, Human Resources	7,010	2026-02-04	6%

Recent Transactions (last 12 months)

Date	Name	Role	Type	Shares	Price	Value
2026-04-01	Geiser Edward	Director	RSU Award	176	-	-
2026-04-01	Garza Rafael G	Director	RSU Award	60	$185.09	$11.11K
2026-03-06	Coogler Mitzi H	Director	RSU Award	920	-	-
2026-03-06	Donohue Sean	Director	RSU Award	920	-	-
2026-03-07	Compton Kelly H	Director	Option Exercise (Sell)	1,082	-	-
2026-03-06	Compton Kelly H	Director	RSU Award	920	-	-
2026-03-06	Garza Rafael G	Director	RSU Award	920	-	-
2026-03-07	Ale John C.	Director	Option Exercise (Sell)	1,082	-	-
2026-03-06	Ale John C.	Director	RSU Award	920	-	-
2026-03-06	Yoho Frank H	Director	RSU Award	920	-	-
2026-03-07	Cocklin Kim R	Director	Option Exercise (Sell)	1,082	-	-
2026-03-06	Cocklin Kim R	Director	RSU Award	920	-	-
2026-02-04	Ware William James	Director	Unknown	-	-	-
2026-02-04	Coogler Mitzi H	Director	Unknown	-	-	-
2026-02-04	Sampson Richard A	Director	Conversion (Sell)	685	-	-
2026-02-03	Bateman Jessica Walker	Sr VP, Gen Counsel, Corp Sec'y	RSU Award	1,240	-	-
2026-02-03	Faulk Michelle	Vice President & Controller	RSU Award	260	-	-
2026-02-03	Mcdill John S	Sr VP, Utility Operations	RSU Award	1,240	-	-
2026-02-03	Hartsfield Karen E	Senior Advisor	RSU Award	1,240	-	-
2026-02-03	Robbins J Matt	Sr VP, Human Resources	RSU Award	1,240	-	-
2026-02-03	Akers John K	President & CEO	RSU Award	7,760	-	-
2026-02-03	Forsythe Christopher T	Sr Vice President & CFO	RSU Award	1,900	-	-
2026-01-02	Bateman Jessica Walker	Sr VP, Gen Counsel, Corp Sec'y	Tax Withholding of RSU	1,042	$168.23	$175.3K
2026-01-02	Geiser Edward	Director	RSU Award	193	-	-
2026-01-02	Garza Rafael G	Director	RSU Award	66	$168.23	$11.1K