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Atmos Energy Corporation (ATO) · Insider trading

What Atmos Energy's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.

Bought, 12 months
$50,277
1 insider, 1 trade
Sold, 12 months
$77,018
1 insider, 0% under a plan
Net, 12 months
−$26,740
bought less sold
Latest filing
2026-10-05
filings read to 2026-10-19

Bought and sold at the market, by month

Two years. Purchases above the line, sales below, in dollars.

2024-11: $362,225 bought 2025-01 2025-05: $2.26M sold 2025-07 2025-12: $77,018 sold 2026-01 2026-07 2026-08: $50,277 bought
Bought Sold Largest month: $2.26M

Who traded, two years

InsiderBoughtSold TradesLast tradeHolds after
Cocklin Kim RDirector – $2.26M 1 2025-05-14 172,632
Geiser EdwardDirector $362,225 – 1 2024-11-11 2,602
Donohue SeanDirector – $77,018 1 2025-12-03 877
Ware William JamesDirector $50,277 – 1 2026-08-11 488

Open-market purchases and sales

Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.

DateInsiderTradeShares PriceValueHolds afterFiling
2026-08-11 Ware William JamesDirector Buy 300 167.59 $50,277 488 Form 4
2025-12-03 Donohue SeanDirector Sale 450 171.15 $77,018 877 Form 4
2025-05-14 Cocklin Kim RDirector Saleplan 15,000 150.98 $2.26M 172,632 Form 4
2024-11-11 Geiser EdwardDirector Buy 2,500 144.89 $362,225 2,602 Form 4

Grants, exercises and other transactions

Pay, tax and paperwork rather than a choice to trade at the market price. Two years.

33 × option exercise26 × shares withheld for tax5 × grant or award4 × gift4 × conversion
Show them
DateInsiderWhatShares PriceHolds afterFiling
2026-10-01 Garza Rafael GDirector Grant or award A +77 155.79 334 Form 4
2026-09-15 Robbins J MattSR VP, HUMAN RESOURCES Gift G −1,500 – 25,866 Form 4
2026-07-01 Garza Rafael GDirector Grant or award A +65 172.92 257 Form 4
2026-05-02 Akers John KDirector, PRESIDENT & CEO Option exercise M +16,850 189.74 142,214 Form 4
2026-05-02 Akers John KDirector, PRESIDENT & CEO Shares withheld for tax F −6,235 187.74 135,979 Form 4
2026-05-02 Faulk MichelleVice President & Controller Option exercise M +175 189.74 1,272 Form 4
2026-05-02 Faulk MichelleVice President & Controller Shares withheld for tax F −70 189.74 1,202 Form 4
2026-05-02 Forsythe Christopher TSR VICE PRESIDENT & CFO Option exercise M +3,970 189.74 63,585 Form 4
2026-05-02 Forsythe Christopher TSR VICE PRESIDENT & CFO Shares withheld for tax F −1,563 189.74 62,022 Form 4
2026-05-02 Hartsfield Karen eSenior Advisor Option exercise M +2,815 189.74 34,028 Form 4
2026-05-02 Hartsfield Karen eSenior Advisor Shares withheld for tax F −1,042 189.74 32,986 Form 4
2026-05-02 McDill John SSR VP, UTILITY OPERATIONS Option exercise M +2,815 189.74 37,414 Form 4
2026-05-02 McDill John SSR VP, UTILITY OPERATIONS Shares withheld for tax F −1,042 189.74 36,372 Form 4
2026-05-02 Robbins J MattSR VP, HUMAN RESOURCES Option exercise M +2,815 189.74 28,408 Form 4
2026-05-02 Robbins J MattSR VP, HUMAN RESOURCES Shares withheld for tax F −1,042 189.74 27,366 Form 4
2026-04-01 Garza Rafael GDirector Grant or award A +60 185.09 192 Form 4
2026-03-07 Ale John C.Director Option exercise M +1,082 184.73 1,082 Form 4
2026-03-07 Cocklin Kim RDirector Option exercise M +1,082 184.73 173,714 Form 4
2026-03-07 Compton Kelly HDirector Option exercise M +1,082 184.73 7,959 Form 4
2026-02-04 Sampson Richard ADirector Conversion C +30,808 171.62 41,082 Form 4
2026-02-04 Sampson Richard ADirector Conversion C +685 171.62 41,767 Form 4
2026-01-02 Garza Rafael GDirector Grant or award A +66 168.23 132 Form 4
2026-01-02 Bateman Jessica WalkerSr VP, Gen Counsel, Corp Sec'y Option exercise M +2,500 168.23 2,500 Form 4
2026-01-02 Bateman Jessica WalkerSr VP, Gen Counsel, Corp Sec'y Shares withheld for tax F −1,042 168.23 1,458 Form 4
2025-12-16 Compton Kelly HDirector Gift G −442 169.16 6,877 Form 4
2025-12-10 Robbins J MattSR VP, HUMAN RESOURCES Gift G −1,500 166.80 25,593 Form 4
2025-11-04 Robbins J MattSR VP, HUMAN RESOURCES Option exercise M +5,396 172.96 29,217 Form 4
2025-11-04 Robbins J MattSR VP, HUMAN RESOURCES Shares withheld for tax F −2,124 172.96 27,093 Form 4
2025-11-04 McDill John SSR VP, UTILITY OPERATIONS Option exercise M +5,396 172.96 36,718 Form 4
2025-11-04 McDill John SSR VP, UTILITY OPERATIONS Shares withheld for tax F −2,124 172.96 34,594 Form 4
2025-11-04 Hartsfield Karen eSenior Advisor Option exercise M +5,396 172.96 33,337 Form 4
2025-11-04 Hartsfield Karen eSenior Advisor Shares withheld for tax F −2,124 172.96 31,213 Form 4
2025-11-04 Faulk MichelleVice President & Controller Option exercise M +336 172.96 1,207 Form 4
2025-11-04 Faulk MichelleVice President & Controller Shares withheld for tax F −116 172.96 1,091 Form 4
2025-11-04 Forsythe Christopher TSR VICE PRESIDENT & CFO Option exercise M +7,610 172.96 62,610 Form 4
2025-11-04 Forsythe Christopher TSR VICE PRESIDENT & CFO Shares withheld for tax F −2,995 172.96 59,615 Form 4
2025-11-04 Akers John KDirector, PRESIDENT & CEO Option exercise M +32,297 172.96 138,073 Form 4
2025-11-04 Akers John KDirector, PRESIDENT & CEO Shares withheld for tax F −12,709 172.96 125,364 Form 4
2025-10-01 Garza Rafael GDirector Grant or award A +66 170.13 66 Form 4
2025-05-02 Akers John KDirector, PRESIDENT & CEO Option exercise M +11,140 160.66 109,898 Form 4
2025-05-02 Akers John KDirector, PRESIDENT & CEO Shares withheld for tax F −4,122 160.66 105,776 Form 4
2025-05-02 Faulk MichelleVice President & Controller Option exercise M +160 160.66 929 Form 4
2025-05-02 Faulk MichelleVice President & Controller Shares withheld for tax F −64 160.66 865 Form 4
2025-05-02 Forsythe Christopher TSR VICE PRESIDENT & CFO Option exercise M +3,430 160.66 56,350 Form 4
2025-05-02 Forsythe Christopher TSR VICE PRESIDENT & CFO Shares withheld for tax F −1,350 160.66 55,000 Form 4
2025-05-02 Hartsfield Karen eSenior Advisor Option exercise M +2,505 160.66 28,927 Form 4
2025-05-02 Hartsfield Karen eSenior Advisor Shares withheld for tax F −986 160.66 27,941 Form 4
2025-05-02 McDill John SSR VP, UTILITY OPERATIONS Option exercise M +2,505 160.66 32,244 Form 4
2025-05-02 McDill John SSR VP, UTILITY OPERATIONS Shares withheld for tax F −927 160.66 31,317 Form 4
2025-05-02 Robbins J MattSR VP, HUMAN RESOURCES Option exercise M +2,505 160.66 24,817 Form 4
2025-05-02 Robbins J MattSR VP, HUMAN RESOURCES Shares withheld for tax F −996 160.66 23,821 Form 4
2025-03-08 Cocklin Kim RDirector Option exercise M +1,293 147.75 187,632 Form 4
2025-03-08 Compton Kelly HDirector Option exercise M +1,293 147.75 7,319 Form 4
2025-03-08 Donohue SeanDirector Option exercise M +1,293 147.75 1,312 Form 4
2025-02-05 Walters Diana JDirector Conversion C +4,456 144.69 8,007 Form 4
2025-02-05 Walters Diana JDirector Option exercise M +1,293 144.69 9,300 Form 4
2025-02-05 Gordon Richard KDirector Conversion C +71,980 144.69 81,980 Form 4
2024-11-15 Robbins J MattSR VP, HUMAN RESOURCES Gift G −1,500 – 22,312 Form 4
2024-11-05 Akers John KDirector, PRESIDENT & CEO Option exercise M +20,403 137.32 106,787 Form 4
2024-11-05 Akers John KDirector, PRESIDENT & CEO Shares withheld for tax F −8,029 137.32 98,758 Form 4
2024-11-05 Faulk MichelleVice President & Controller Option exercise M +294 137.32 870 Form 4
2024-11-05 Faulk MichelleVice President & Controller Shares withheld for tax F −101 137.32 769 Form 4
2024-11-05 Forsythe Christopher TSR VICE PRESIDENT & CFO Option exercise M +6,283 137.32 55,393 Form 4
2024-11-05 Forsythe Christopher TSR VICE PRESIDENT & CFO Shares withheld for tax F −2,473 137.32 52,920 Form 4
2024-11-05 Hartsfield Karen eSR VP, GC & CORPORATE SEC'Y Option exercise M +4,588 137.32 28,228 Form 4
2024-11-05 Hartsfield Karen eSR VP, GC & CORPORATE SEC'Y Shares withheld for tax F −1,806 137.32 26,422 Form 4
2024-11-05 McDill John SSR VP, UTILITY OPERATIONS Option exercise M +4,588 137.32 31,540 Form 4
2024-11-05 McDill John SSR VP, UTILITY OPERATIONS Shares withheld for tax F −1,806 137.32 29,734 Form 4
2024-11-05 Robbins J MattSR VP, HUMAN RESOURCES Option exercise M +4,588 137.32 25,618 Form 4
2024-11-05 Robbins J MattSR VP, HUMAN RESOURCES Shares withheld for tax F −1,806 137.32 23,812 Form 4
2024-11-05 Thomas Richard MVICE PRESIDENT & CONTROLLER Option exercise M +1,228 137.32 4,444 Form 4
2024-11-05 Thomas Richard MVICE PRESIDENT & CONTROLLER Shares withheld for tax F −484 137.32 3,960 Form 4

How to read it

Buy, sale
Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
Plan
A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
Holds after
The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
Value
Shares times the price the form reports, which is often an average over several fills on the day.

Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.

Atmos Energy's scores and multiples ›