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ATOAtmos Energy · Insider ownership research

Atmos Energy insiders sold $77K in the past 12 months. How much of their stake is that?

About 0.1% overall. As a group they ended with more shares than they started with. The biggest individual seller, Sean Donohue, gave up 34% of starting holdings. These figures leave out Kim Cocklin, the largest holder (most holdings were last confirmed in 2021).

Updated Oct 9, 2026 from SEC filings · covers Oct 10, 2025 to Oct 9, 2026
How this comparesMore of their stake sold than at 48 of the 416 other companies we can measure (#369 of 417)See ranking
1
buyer among officers and directors (1 trade), past 12 months
0%
of sales were under disclosed trading plans, past 12 months
1 of 21
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 10, 2026 to Oct 9, 2026
Sep 15, 2026Matt Robbins gave away 1.5K shares as a gift. That is 5.0% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Matt Robbins
Sr VP, Human Resources
1,500n/a5.0%29KSep 15, 2026Sep 17, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Is this normal? Less than usual: less than one-twentieth of the 5-year average. 1 insider sold; the average is 2 a year. Year by year
Latest filing: Filed Oct 5 for a stock award on Oct 1. Rafael Garza received an award of 77 shares. Filing
50 SEC ownership filings in the period · See the evidence

What stands out

William Ware bought 300 shares for $50K, first on Aug 11, 2026.Purchase, Aug 11, 2026
Tax withholding outweighed market sales: the company withheld $6.1M of officers' and directors' shares for taxes, against $77K sold on the open market. The largest was John Akers ($3.4M withheld).Largest withholding, Nov 4, 2025

Percentages cover 13 of 21 officers and directors. 8 are left out

i
Left out: Kim Cocklin and Frank Yoho (most holdings were last confirmed in 2021); Michelle Faulk (holdings couldn't be fully reconciled); Nancy Quinn, John Ale, Telisa Toliver, Jessica Bateman and Mitzi Coogler (held no vested shares at the start).
Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Each bar is 100% of that person's own stake; not comparable between people. The stake is the vested shares held at the start of the period (Oct 9, 2025); the gold part is what they sold.

SoldRest of starting stake
Sean Donohue
Director
34% · $77KNo plan disclosed
Amounts, filings and trading plans for each seller

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

No plan disclosedOne dollar scale for every month; the tallest bar is labeled
OctNovDec 2025: $77K no plan disclosed$77KDecJanFebMarAprMayJunJulAugSepOct

Common questions

Is the Atmos Energy CEO selling stock?

No. John Akers reported no open-market sales in the past 12 months.

Why are Atmos Energy insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 0% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 100% had no disclosed plan. A trading plan schedules sales in advance.

Are any Atmos Energy insiders buying?

Yes. 1 officer or director reported 1 purchase in the past 12 months (Form 4 code P, which includes private purchases).

How much of their stake did Atmos Energy insiders sell?

About 0.1% overall. As a group they ended with more shares than they started with. The biggest individual seller, Sean Donohue, gave up 34% of starting holdings. These figures leave out Kim Cocklin, the largest holder (most holdings were last confirmed in 2021). That covers the 12 months to Oct 9, 2026 and counts vested shares reported on SEC Forms 3, 4 and 5, which is not an insider's whole wealth.

The evidence

Who sold1 officer or director: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
Sean Donohue
Director
$77K
450 shares
34%No plan disclosed
The full ownership picture20 of 21 insiders fully reconciled · 17 officers and directors

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

InsiderHeld Oct 9, 2025SoldHeld Oct 9, 2026Still held
Kim Cocklin
!
Most of this insider's holdings were last confirmed in 2021. Confirmed in the last three years: 173,714 shares. Not confirmed since: 223,546 shares, left out of this row. "Still held" is not shown because it would cover only the smaller, confirmed part.
Director
173K0174Ksee note
Vesting, gifts, unvested awards and holding lines for Kim Cocklin
+1.1Kshares vested or exercised
0gifted (net of own trusts)
1.1K → 920unvested awards, start → end
  • Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock172,632173,714
Retirement Savings Plan and TrustCommon Stock00

Additional holdings last reported Dec 7, 2021, not confirmed since: 223,546 shares. Not included in any total or percentage on this page.

John Akers
i
Minor difference of 291 shares. Difference is under 0.5% of holdings.
President & CEO, Director
119K0149Kno sales
Vesting, gifts, unvested awards and holding lines for John Akers
+49Kshares vested or exercised
0gifted (net of own trusts)
−19Kwithheld by the company for taxes
35K → 26Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock105,776135,979
Retirement Savings Plan and TrustCommon Stock12,89413,185

Reconciliation: minor difference of 291 shares. Difference is under 0.5% of holdings.

Christopher Forsythe
i
Minor difference of 32 shares. Difference is under 0.5% of holdings.
Sr Vice President & CFO
56K063Kno sales
Vesting, gifts, unvested awards and holding lines for Christopher Forsythe
+12Kshares vested or exercised
0gifted (net of own trusts)
−4.6Kwithheld by the company for taxes
8.3K → 6.2Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock55,00062,022
Retirement Savings Plan and TrustCommon Stock1,4071,439

Reconciliation: minor difference of 32 shares. Difference is under 0.5% of holdings.

John McDill
i
Minor difference of 58 shares. Difference is under 0.5% of holdings.
Sr VP, Utility Operations
33K039Kno sales
Vesting, gifts, unvested awards and holding lines for John McDill
+8.2Kshares vested or exercised
0gifted (net of own trusts)
−3.2Kwithheld by the company for taxes
5.8K → 4.2Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock31,31736,372
Retirement Savings PlanCommon Stock2,1152,163

Reconciliation: minor difference of 58 shares. Difference is under 0.5% of holdings.

Karen Hartsfield
i
Minor difference of 131 shares. Difference is under 0.5% of holdings.
Senior Advisor
30K035Kno sales
Vesting, gifts, unvested awards and holding lines for Karen Hartsfield
+8.2Kshares vested or exercised
0gifted (net of own trusts)
−3.2Kwithheld by the company for taxes
5.8K → 4.2Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock27,94132,986
Retirement Savings Plan and TrustCommon Stock1,7431,874

Reconciliation: minor difference of 131 shares. Difference is under 0.5% of holdings.

Matt Robbins
i
Minor difference of 82 shares. Difference is under 0.5% of holdings.
Sr VP, Human Resources
27K029Kno sales
Vesting, gifts, unvested awards and holding lines for Matt Robbins
+8.2Kshares vested or exercised
−3Kgifted (net of own trusts)
−3.2Kwithheld by the company for taxes
5.8K → 4.2Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock23,82125,866
Retirement Savings Plan and TrustCommon Stock2,8672,950

Reconciliation: minor difference of 82 shares. Difference is under 0.5% of holdings.

William Ware
i
Started reporting during the period; starting holdings are from the Form 3.
Director
24K025Kno sales
Vesting, gifts, unvested awards and holding lines for William Ware
0shares vested or exercised
0gifted (net of own trusts)
0 → 920unvested awards, start → end
  • Started reporting during the period; starting holdings are from the Form 3.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock188488
TrustCommon Stock24,04724,047
Richard Sampson
i
Minor difference of 44 shares. Difference is under 0.5% of holdings.
Director
10K042Kno sales
Vesting, gifts, unvested awards and holding lines for Richard Sampson
0shares vested or exercised
0gifted (net of own trusts)
60K → 60Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock10,23041,767

Reconciliation: minor difference of 44 shares. Difference is under 0.5% of holdings.

Jeffery MARTINEZ
i
Started reporting during the period; starting holdings are from the Form 3.
Sr VP, Utility Operations
7.8K07.8Kno sales
Vesting, gifts, unvested awards and holding lines for Jeffery MARTINEZ
0shares vested or exercised
0gifted (net of own trusts)
1.7K → 1.7Kunvested awards, start → end
  • Started reporting during the period; starting holdings are from the Form 3.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock5,1855,185
Retirement Savings Plan and TrustCommon Stock2,6002,600
Kelly Compton
Director
7.3K08Kno sales
Vesting, gifts, unvested awards and holding lines for Kelly Compton
+1.1Kshares vested or exercised
−442gifted (net of own trusts)
19K → 19Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock7,3197,959
TrustCommon Stock00
James Jeffries IV
i
Started reporting during the period; starting holdings are from the Form 3.
Director
4.6K04.6Kno sales
Vesting, gifts, unvested awards and holding lines for James Jeffries IV
0shares vested or exercised
0gifted (net of own trusts)
0 → 1Kunvested awards, start → end
  • Started reporting during the period; starting holdings are from the Form 3.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock4,5944,594
Edward Geiser
Director
2.6K02.6Kno sales
Vesting, gifts, unvested awards and holding lines for Edward Geiser
0shares vested or exercised
0gifted (net of own trusts)
13K → 32Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock2,6022,602
Sean Donohue
i
Minor difference of 15 shares. Unexplained small increases, consistent with stock unit vesting or reinvested dividends. Unexplained small increases, consistent with stock unit vesting or reinvested dividends.
Director
1.3K−45087767%
Vesting, gifts, unvested awards and holding lines for Sean Donohue
0shares vested or exercised
0gifted (net of own trusts)
16K → 26Kunvested awards, start → end
  • Unexplained small increases, consistent with stock unit vesting or reinvested dividends.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock1,312877

Reconciliation: minor difference of 15 shares. Unexplained small increases, consistent with stock unit vesting or reinvested dividends.

Michelle Faulk
!
Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: +6 shares on Nov 4, 2025 (Direct). See the filing Sales and other transactions for Michelle Faulk are complete.
Vice President & Controller
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Michelle Faulk
+511shares vested or exercised
0gifted (net of own trusts)
−186withheld by the company for taxes
565 → 650unvested awards, start → end

Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: +6 shares on Nov 4, 2025 (Direct). The balances below are as reported, not verified totals.

Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock8651,202
Retirement Savings PlanCommon Stock11
Rafael Garza
Director
660334no sales
Vesting, gifts, unvested awards and holding lines for Rafael Garza
0shares vested or exercised
0gifted (net of own trusts)
41K → 64Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock66334
John Ale
Director
001.1Kno sales
Vesting, gifts, unvested awards and holding lines for John Ale
+1.1Kshares vested or exercised
0gifted (net of own trusts)
8.6K → 8.5Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock01,082
Jessica Bateman
Sr VP, Gen Counsel, Corp Sec'y
001.5Kno sales
Vesting, gifts, unvested awards and holding lines for Jessica Bateman
+2.5Kshares vested or exercised
0gifted (net of own trusts)
−1Kwithheld by the company for taxes
9K → 7.7Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock01,458

20 of 21 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (13 exactly, 7 with a minor or footnoted difference). For 1 we show sales but not holdings; the ! icon on that row explains why. Percentages cover 13 of 21 officers and directors. Left out: Kim Cocklin and Frank Yoho (most holdings were last confirmed in 2021); Michelle Faulk (holdings couldn't be fully reconciled); Nancy Quinn, John Ale, Telisa Toliver, Jessica Bateman and Mitzi Coogler (held no vested shares at the start). "Still held" compares ending with starting vested shares; a plus sign means the holding grew.

What explains the selling$77K of sales by plan status, purpose, seller and month

Officer and director open-market sales: $77K across 450 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

No plan disclosed · $77K

Sales with no 10b5-1 plan and no tax reference in the filing. $77K of it is Sean Donohue. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Sean Donohue, Dec 3, 2025

Taxes

34,228 shares ($6.1M) were withheld by the company for taxes, which isn't a market sale.

Purchases · 1 buyer (1 trade)

1 officer or director bought shares in this period, in 1 trade(Form 4 code P). Across all their filings on record there are 13 purchase trades.

Charitable gifts · 3.4K shares

Gifts the filings describe as charitable. Gifts are not sales and are not included in the sale totals.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
Sean Donohue
Director
450$77K0%100%Dec 3, 2025 to Dec 3, 2025

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$0$0$0$0
Nov 2025$0$0$0$0
Dec 2025$77K$0$0$77K
Jan 2026$0$0$0$0
Feb 2026$0$0$0$0
Mar 2026$0$0$0$0
Apr 2026$0$0$0$0
May 2026$0$0$0$0
Jun 2026$0$0$0$0
Jul 2026$0$0$0$0
Aug 2026$0$0$0$0
Sep 2026$0$0$0$0
Oct 2026$0$0$0$0
Is this normal? Selling year by year5 earlier years to compare with

Less than usual: less than one-twentieth of the 5-year average. 1 insider sold; the average is 2 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 9, 2026
Latest 12 months
4501$77K
Oct 9, 2025
1 year earlier
15K1$2.3M
Oct 9, 2024
2 years earlier
30K3$3.4M
Oct 10, 2023
3 years earlier
39K4$4.5M
Oct 10, 2022
4 years earlier
9502$101K
Oct 10, 2021
5 years earlier
5.9K2$588K

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertainty1 insider whose holdings couldn't be fully reconciled

Michelle Faulk: holdings couldn't be fully reconciled (difference of 12 shares). Balance changed without a matching transaction, and the footnote does not state the amount: +6 shares on Nov 4, 2025 (Direct). Filing, Nov 4, 2025

Footnote: "Vesting of award of performance based restricted stock units pursuant to the 1998 Long-Term Incentive Plan of the Company (the "Plan")."

John Akers: minor difference of 291 shares. Difference is under 0.5% of holdings.

Christopher Forsythe: minor difference of 32 shares. Difference is under 0.5% of holdings.

John McDill: minor difference of 58 shares. Difference is under 0.5% of holdings.

Karen Hartsfield: minor difference of 131 shares. Difference is under 0.5% of holdings.

Matt Robbins: minor difference of 82 shares. Difference is under 0.5% of holdings.

Richard Sampson: minor difference of 44 shares. Difference is under 0.5% of holdings.

Sean Donohue: minor difference of 15 shares. Unexplained small increases, consistent with stock unit vesting or reinvested dividends.

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology1,308 filings from SEC EDGAR, and how we read them

All 1,308 Forms 3, 4 and 5 filed for Atmos Energy (SEC CIK 731802) from Oct 1, 2002 to Oct 8, 2026, retrieved from SEC EDGAR on Oct 9, 2026. Prices are the ones reported in each filing, often weighted averages. 2 filings were left out because Atmos Energy filed them as an owner of another company's stock. 36 older filings exist only on paper and could not be read.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (30)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
Richard GordonFeb 6, 202581,980 shares, last reported balance as of Feb 5, 2025
Diana WaltersFeb 6, 20259,300 shares, last reported balance as of Feb 5, 2025
Richard ThomasNov 7, 20244,375 shares, last reported balance as of Nov 5, 2024
Robert GrableJan 4, 202210,092 shares, last reported balance as of Jan 3, 2022
Stephen SpringerDec 3, 202154,201 shares, last reported balance as of Dec 2, 2021
Richard Ware IIOct 4, 20211,392 shares, last reported balance as of Oct 1, 2021
David ParkMay 5, 202119,545 shares, last reported balance as of May 1, 2021
Robert BestMar 9, 2021708,577 shares, last reported balance as of Dec 8, 2020
Michael HaefnerNov 8, 2019128,151 shares, last reported balance as of Nov 5, 2019
Ruben EsquivelMar 12, 20197,901 shares, last reported balance as of Feb 6, 2019
Richard DouglasAug 16, 201847,583 shares, last reported balance as of Aug 16, 2018
Thomas MeredithFeb 10, 201720,762 shares, last reported balance as of Feb 8, 2017
Louis GregoryDec 19, 201696,747 shares, last reported balance as of Dec 16, 2016
Marvin SweetinNov 10, 201656,890 shares, last reported balance as of Nov 8, 2016
Bret EckertNov 10, 201628,779 shares, last reported balance as of Nov 8, 2016
Charles VaughanMar 7, 201369,786 shares, last reported balance as of Mar 5, 2013
MEISENHEIMER F EAug 14, 201237,939 shares, last reported balance as of Aug 13, 2012
Lee SchlessmanDec 20, 2011814,864 shares, last reported balance as of Dec 12, 2011
Richard CardinFeb 11, 201138,554 shares, last reported balance as of Feb 9, 2011
Phillip NicholFeb 11, 201116,909 shares, last reported balance as of Feb 9, 2011
Thomas GarlandFeb 4, 201045,082 shares, last reported balance as of Feb 3, 2010
Travis Bain IIFeb 4, 201015,150 shares, last reported balance as of Feb 3, 2010
Mark JohnsonNov 3, 200942,415 shares, last reported balance as of Oct 31, 2009
Wynn McGregorFeb 9, 200962,766 shares, last reported balance as of Feb 6, 2009
Dan BusbeeFeb 5, 200943,366 shares, last reported balance as of Feb 4, 2009
Patrick ReddyJan 5, 2009104,390 shares, last reported balance as of Dec 31, 2008
Gene KoonceFeb 12, 200748,112 shares, last reported balance as of Feb 9, 2007
Earl FischerNov 9, 200668,175 shares, last reported balance as of Nov 7, 2006
WOODWARD J DApr 3, 2006801,772 shares, last reported balance as of Apr 1, 2006
Carl QuinnJul 1, 200457,769 shares, last reported balance as of Jul 1, 2004

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