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ATMOS ENERGY CORP

ATO·NYSE·United States United States·Insider activity
$159.74
+1.69 (+1.07%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
ATO
Insider purchases and sales on the price
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
ATOS&P 500 (rebased)
Insider BuyInsider SellForm 144 · planned sale
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair

In the last 180 days, ATO insiders filed 1 purchase ($50K) and 0 sales ($0) on the open market, by 1 insider. Newest filing Aug 12, 2026 (1 month ago).

Net Insider Buying by Quarter

Shares bought (+) or sold (−) on the open market by ATO insiders · Form 4 · last two years
-20.0K-10.0K010.0K20.0K2025 Q1: 02025 Q12025 Q2: -15.0K2025 Q22025 Q3: 02025 Q32025 Q4: -4502025 Q42026 Q1: 02026 Q12026 Q2: 02026 Q22026 Q3: 3002026 Q32026 Q4: 02026 Q4

On Record

$50KPurchases · 180 days
$0Sales · 180 days
130Open-market transactions on record
1Insiders filing · 180 days

Purchases (code P) and sales (code S) of ATO common stock reported on Form 4, with Form 5 annual catch-ups. Grants, option exercises, gifts and tax withholding are not shown. Dollars are shares × the stated price; a price outside anything the stock traded at that day is withheld (n/c).

Insider Transactions

130 on record · newest trade first
AllPurchasesSalesOfficers & directors
InsiderTypeSharesPriceValueHeld afterTradedFiled
WARE WILLIAM JAMESDirector · Director Purchase +300 $167.59 $50K488direct Aug 11, 2026Aug 12, 2026 Form 4 ↗
DONOHUE SEANDirector Sale −450 $171.15 $77K877direct Dec 3, 2025Dec 4, 2025 Form 4 ↗
COCKLIN KIM RDirector Sale −15.0K $150.98 $2.3M172.6Kdirect May 14, 2025May 15, 2025 Form 4 ↗
Geiser EdwardDirector Purchase +2,500 $144.89 $362K2,602direct Nov 11, 2024Nov 12, 2024 Form 4 ↗
WALTERS DIANA JDirector Sale −400 $118.00 $47K3,551direct May 16, 2024May 16, 2024 Form 4 ↗
COCKLIN KIM RDirector Sale −15.0K $116.46 $1.7M186.3Kdirect Mar 27, 2024Mar 28, 2024 Form 4 ↗
THOMAS RICHARD MVICE PRESIDENT & CONTROLLER Sale −1,750 $114.20 $200K2,650direct Nov 17, 2023Nov 17, 2023 Form 4 ↗
COCKLIN KIM RDirector Sale −12.5K $110.99 $1.4M200.0Kdirect Nov 6, 2023Nov 8, 2023 Form 4 ↗
COCKLIN KIM RDirector Sale −12.5K $117.44 $1.5M212.5Kdirect Aug 7, 2023Aug 8, 2023 Form 4 ↗
WALTERS DIANA JDirector Sale −390 $117.50 $46K2,584direct May 5, 2023May 5, 2023 Form 4 ↗
COCKLIN KIM RDirector Sale −12.5K $114.54 $1.4M217.7Kdirect May 1, 2023May 3, 2023 Form 4 ↗
COCKLIN KIM RDirector Sale −12.5K $117.14 $1.5M228.8Kdirect Feb 6, 2023Feb 8, 2023 Form 4 ↗
THOMAS RICHARD MVICE PRESIDENT & CONTROLLER Sale −1,100 $110.37 $121K2,891direct Nov 15, 2022Nov 15, 2022 Form 4 ↗
MCDILL JOHN SSR VP, UTILITY OPERATIONS Sale −2 $101.04 $20220.9Kdirect Oct 14, 2022Nov 10, 2022 Form 4 ↗
Forsythe Christopher TSR VICE PRESIDENT & CFO Sale −0 $105.00 $1234.2Kdirect Feb 11, 2022May 10, 2022 Form 4 ↗
THOMAS RICHARD MVICE PRESIDENT & CONTROLLER Sale −950 $106.61 $101K2,822direct Feb 10, 2022Feb 11, 2022 Form 4 ↗
DONOHUE SEANDirector Sale −1,375 $96.83 $133K17direct Sep 9, 2021Sep 10, 2021 Form 4 ↗
ROBBINS J MATTSR VP, HUMAN RESOURCES Sale −4,500 $101.12 $455K7,954direct Aug 11, 2021Aug 13, 2021 Form 4 ↗
YOHO FRANK HDirector Purchase +500 $87.80 $44K3,000direct Feb 4, 2021Feb 4, 2021 Form 4 ↗
Sampson Richard ADirector Purchase +500 $97.41 $49K7,076direct Dec 10, 2020Dec 10, 2020 Form 4 ↗
YOHO FRANK HDirector Purchase +1,500 $99.48 $149K2,500direct Aug 26, 2020Aug 26, 2020 Form 4 ↗
Sampson Richard ADirector Purchase +500 $103.00 $52K6,500direct Aug 18, 2020Aug 19, 2020 Form 4 ↗
Sampson Richard ADirector Purchase +1,000 $99.75 $100K6,000direct Jun 11, 2020Jun 12, 2020 Form 4 ↗
Sampson Richard ADirector Purchase +1,000 $100.00 $100K5,000direct Jun 11, 2020Jun 11, 2020 Form 4 ↗
YOHO FRANK HDirector Purchase +1,000 $92.30 $92K1,000direct May 15, 2020May 19, 2020 Form 4 ↗
Sampson Richard ADirector Purchase +1,000 $95.47 $95K4,000direct May 11, 2020May 19, 2020 Form 4 ↗
PARK DAVID JSR VP, UTILITY OPERATIONS Sale −4,000 $106.92 $428K10.1Kdirect Nov 11, 2019Nov 12, 2019 Form 4 ↗
DOUGLAS RICHARD W Sale −35.0K $93.04 $3.3M6,292direct Aug 16, 2018Aug 16, 2018 Form 4 ↗
QUINN NANCY KDirector Sale −2,000 $93.05 $186K0direct Aug 15, 2018Aug 16, 2018 Form 4 ↗
Sampson Richard ADirector Purchase +1,500 $88.12 $132K3,000direct Aug 15, 2017Aug 15, 2017 Form 4 ↗
GREGORY LOUIS PSr VP, GC & Corp. Secretary Sale −10.0K $74.08 $741K75.9Kdirect Dec 16, 2016Dec 19, 2016 Form 4 ↗
MEREDITH THOMAS CDirector Sale −1,020 $75.24 $77K0direct Aug 19, 2016Aug 22, 2016 Form 4 ↗
GREGORY LOUIS PSr VP, GC & Corp. Secretary Sale −4,000 $78.10 $312K78.2Kdirect Aug 8, 2016Aug 9, 2016 Form 4 ↗
Sweetin Marvin LSR VP, Safety & Enterprise Ser Sale −4,000 $74.16 $297K43.0Kdirect May 13, 2016May 16, 2016 Form 4 ↗
Forsythe Christopher TVice President and Controller Sale −3,000 $62.00 $186K14.1Kdirect Dec 4, 2015Dec 7, 2015 Form 4 ↗
GREGORY LOUIS PSr VP, GC & Corp. Secretary Sale −1,000 $54.66 $55K65.9Kdirect Feb 10, 2015Feb 10, 2015 Form 4 ↗
ECKERT BRET JSR VICE PRESIDENT & CFO Sale −5,000 $54.00 $270K3,847direct Dec 12, 2014Dec 16, 2014 Form 4 ↗
GREGORY LOUIS PSr VP, GC & Corp. Secretary Sale −1,500 $54.28 $81K67.4Kdirect Nov 10, 2014Nov 12, 2014 Form 4 ↗
GREGORY LOUIS PSr VP, GC & Corp. Secretary Sale −3,000 $50.03 $150K58.4Kdirect May 13, 2014May 15, 2014 Form 4 ↗
GREGORY LOUIS PSr VP, GC & Corp. Secretary Sale −1,000 $45.75 $46K57.4Kdirect Nov 12, 2013Nov 12, 2013 Form 4 ↗
GREGORY LOUIS PSr VP, GC & Corp. Secretary Sale −1,000 $45.71 $46K58.4Kdirect Nov 11, 2013Nov 12, 2013 Form 4 ↗
Forsythe Christopher TVice President and Controller Sale −3,900 $41.10 $160K5,753direct Jun 11, 2013Jun 13, 2013 Form 4 ↗
MEREDITH THOMAS CDirector Sale −4,000 $41.16 $165K1,020direct Mar 13, 2013Mar 15, 2013 Form 4 ↗
VAUGHAN CHARLES K Sale −25.0K $40.17 $1.0M69.8Kdirect Mar 5, 2013Mar 7, 2013 Form 4 ↗
GREGORY LOUIS PSr VP, GC & Corp. Secretary Sale −1,000 $38.95 $39K43.1Kdirect Mar 4, 2013Mar 6, 2013 Form 4 ↗
MEREDITH THOMAS CDirector Sale −5,858 $35.59 $208K5,600direct Dec 7, 2012Dec 11, 2012 Form 4 ↗
BEST ROBERT WExecutive Chairman · Director Sale −62.9K $36.77 $2.3M414.3Kdirect Aug 14, 2012Aug 16, 2012 Form 4 ↗
MEISENHEIMER F ESr VP and CFO Sale −1,880 $36.60 $69K31.1Kdirect Aug 13, 2012Aug 14, 2012 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −2,500 $33.21 $83K35.2Kdirect Jun 5, 2012Jun 6, 2012 Form 4 ↗
MEISENHEIMER F ESr VP and CFO Sale −1,000 $31.13 $31K26.3Kdirect Mar 9, 2012Mar 12, 2012 Form 4 ↗
DOUGLAS RICHARD WDirector Purchase +3,163 $31.62 $100K5,332direct Feb 27, 2012Feb 28, 2012 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −2,400 $33.15 $80K33.9Kdirect Nov 29, 2011Nov 29, 2011 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −600 $33.15 $20K36.3Kdirect Nov 29, 2011Nov 29, 2011 Form 4 ↗
MEISENHEIMER F ESr VP and CFO Sale −1,471 $35.19 $52K27.3Kdirect Nov 14, 2011Nov 16, 2011 Form 4 ↗
Forsythe Christopher TVice President and Controller Sale −1,034 $34.00 $35K3,120direct Mar 1, 2011Mar 2, 2011 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −900 $33.51 $30K37.6Kdirect Feb 11, 2011Feb 14, 2011 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −4,100 $33.51 $137K38.5Kdirect Feb 11, 2011Feb 14, 2011 Form 4 ↗
BEST ROBERT WExecutive Chairman · Director Sale −43.4K $30.23 $1.3M380.0Kdirect Nov 26, 2010Nov 26, 2010 Form 4 ↗
BEST ROBERT WExecutive Chairman · Director Sale −4,948 $30.32 $150K380.0Kdirect Nov 24, 2010Nov 24, 2010 Form 4 ↗
BEST ROBERT WExecutive Chairman · Director Sale −62.3K $30.32 $1.9M380.0Kdirect Nov 24, 2010Nov 24, 2010 Form 4 ↗
NICHOL PHILLIP EDirector Sale −1,000 $30.23 $30K8,000direct Nov 24, 2010Nov 24, 2010 Form 4 ↗
NICHOL PHILLIP EDirector Sale −1,000 $30.24 $30K9,000direct Nov 24, 2010Nov 24, 2010 Form 4 ↗
MEISENHEIMER F ESr VP, CFO and Treasurer Sale −5,784 $30.51 $176K25.2Kdirect Nov 22, 2010Nov 22, 2010 Form 4 ↗
MEISENHEIMER F ESr VP, CFO and Treasurer Sale −800 $30.51 $24K31.0Kdirect Nov 22, 2010Nov 22, 2010 Form 4 ↗
BEST ROBERT WExecutive Chairman · Director Sale −35.6K $30.15 $1.1M380.0Kdirect Nov 10, 2010Nov 10, 2010 Form 4 ↗
BEST ROBERT WExecutive Chairman · Director Sale −64.4K $30.17 $1.9M380.0Kdirect Nov 9, 2010Nov 10, 2010 Form 4 ↗
BEST ROBERT WExecutive Chairman · Director Sale −75.0K $30.17 $2.3M380.0Kdirect Nov 9, 2010Nov 10, 2010 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −8,500 $28.40 $241K39.2Kdirect Aug 24, 2010Aug 24, 2010 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −4,000 $29.00 $116K47.7Kdirect Aug 17, 2010Aug 17, 2010 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −3,000 $28.90 $87K51.7Kdirect Aug 11, 2010Aug 12, 2010 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −10.0K $29.40 $294K54.7Kdirect Aug 9, 2010Aug 9, 2010 Form 4 ↗
Forsythe Christopher TVice President and Controller Sale −300 $29.19 $9K3,513direct Dec 14, 2009Dec 15, 2009 Form 4 ↗
Forsythe Christopher TVice President and Controller Sale −1,200 $29.18 $35K3,813direct Dec 14, 2009Dec 15, 2009 Form 4 ↗
BEST ROBERT WCHAIRMAN AND CEO · Director Sale −50.0K $28.64 $1.4M361.9Kdirect Nov 16, 2009Nov 16, 2009 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −3,065 $28.00 $86K64.3Kdirect Aug 13, 2009Aug 14, 2009 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −3,068 $28.00 $86K64.3Kdirect Aug 12, 2009Aug 12, 2009 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −3,832 $28.00 $107K64.3Kdirect Aug 12, 2009Aug 12, 2009 Form 4 ↗
MEISENHEIMER F ESr VP and CFO Sale −1,500 $27.79 $42K29.1Kdirect Aug 11, 2009Aug 11, 2009 Form 4 ↗
Haefner Michael ESenior Vice President Purchase +700 $20.25 $14K9,250direct Mar 6, 2009Mar 6, 2009 Form 4 ↗
Haefner Michael ESenior Vice President Purchase +4,300 $20.19 $87K8,550direct Mar 6, 2009Mar 6, 2009 Form 4 ↗
MCGREGOR WYNN DSenior VP, Human Resources Sale −12.0K $25.50 $306K46.3Kdirect Feb 6, 2009Feb 9, 2009 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −1,300 $23.79 $31K94.6Kdirect Dec 3, 2008Dec 3, 2008 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −1,500 $23.77 $36K95.9Kdirect Dec 3, 2008Dec 3, 2008 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −1,200 $23.74 $28K97.4Kdirect Dec 3, 2008Dec 3, 2008 Form 4 ↗
QUINN NANCY KDirector Purchase +1,000 $23.89 $24K2,000direct Nov 18, 2008Nov 18, 2008 Form 4 ↗
MEISENHEIMER F EVP and Controller Sale −2,010 $23.90 $48K31.3Kdirect Nov 17, 2008Nov 18, 2008 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −4,538 $26.63 $121K74.2Kdirect Sep 11, 2008Sep 11, 2008 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −4,600 $26.10 $120K78.7Kdirect Sep 10, 2008Sep 10, 2008 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −5,850 $26.48 $155K83.3Kdirect Sep 8, 2008Sep 8, 2008 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −5,000 $26.69 $133K89.2Kdirect Aug 12, 2008Aug 12, 2008 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −916 $26.75 $25K53.2Kdirect Jun 12, 2008Jun 12, 2008 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −200 $26.74 $5K54.1Kdirect Jun 12, 2008Jun 12, 2008 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −1,000 $26.73 $27K54.3Kdirect Jun 12, 2008Jun 12, 2008 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −300 $26.72 $8K55.3Kdirect Jun 12, 2008Jun 12, 2008 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −5,700 $26.71 $152K55.6Kdirect Jun 12, 2008Jun 12, 2008 Form 4 ↗
GREGORY LOUIS PSr VP and General Counsel Sale −134 $26.70 $4K61.3Kdirect Jun 12, 2008Jun 12, 2008 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −1,200 $27.02 $32K94.2Kdirect Jun 10, 2008Jun 11, 2008 Form 4 ↗
BUSBEE DANDirector Sale −1,100 $27.11 $30K7,000direct Jun 9, 2008Jun 9, 2008 Form 4 ↗
BUSBEE DANDirector Sale −700 $27.10 $19K8,100direct Jun 9, 2008Jun 9, 2008 Form 4 ↗
BUSBEE DANDirector Sale −1,800 $27.09 $49K8,800direct Jun 9, 2008Jun 9, 2008 Form 4 ↗
BUSBEE DANDirector Sale −100 $27.08 $3K10.6Kdirect Jun 9, 2008Jun 9, 2008 Form 4 ↗
BUSBEE DANDirector Sale −1,300 $27.07 $35K10.7Kdirect Jun 9, 2008Jun 9, 2008 Form 4 ↗
BEST ROBERT WChairman, Pres, and CEO · Director Purchase +972 $25.73 $25K2,985indirect Mar 10, 2008Mar 11, 2008 Form 4 ↗
BUSBEE DANDirector Purchase +200 $26.37 $5K12.0Kdirect Dec 3, 2007Dec 4, 2007 Form 4 ↗
BUSBEE DANDirector Purchase +2,400 $26.36 $63K11.8Kdirect Dec 3, 2007Dec 4, 2007 Form 4 ↗
BUSBEE DANDirector Purchase +900 $26.35 $24K9,400direct Dec 3, 2007Dec 4, 2007 Form 4 ↗
DOUGLAS RICHARD WDirector Purchase +1,029 $26.25 $27K1,029direct Dec 3, 2007Dec 4, 2007 Form 4 ↗
BUSBEE DANDirector Purchase +1,400 $26.23 $37K8,500direct Nov 30, 2007Dec 4, 2007 Form 4 ↗
BUSBEE DANDirector Purchase +1,000 $26.22 $26K7,100direct Nov 30, 2007Dec 4, 2007 Form 4 ↗
BUSBEE DANDirector Purchase +1,100 $26.21 $29K6,100direct Nov 30, 2007Dec 4, 2007 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −3,000 $26.16 $78K90.4Kdirect Nov 28, 2007Nov 28, 2007 Form 4 ↗
BAIN TRAVIS W IIDirector Purchase +1,044 $26.81 $28K6,620direct Nov 19, 2007Nov 20, 2007 Form 4 ↗
MEISENHEIMER F EVP and Controller Sale −2,905 $27.05 $79K23.1Kdirect Nov 13, 2007Nov 14, 2007 Form 4 ↗
WARE RICHARD IIDirector Purchase +2,000 $28.25 $57K26.1Kdirect Aug 30, 2007Aug 30, 2007 Form 4 ↗
MCGREGOR WYNN DSenior VP, Human Resources Sale −6,666 $33.27 $222K31.2Kdirect May 22, 2007May 22, 2007 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −300 $31.31 $9K70.1Kdirect Mar 7, 2007Mar 8, 2007 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −900 $31.30 $28K70.4Kdirect Mar 7, 2007Mar 8, 2007 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −100 $31.29 $3K71.3Kdirect Mar 7, 2007Mar 8, 2007 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −500 $31.28 $16K71.4Kdirect Mar 7, 2007Mar 8, 2007 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −300 $31.24 $9K71.9Kdirect Mar 7, 2007Mar 8, 2007 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −1,100 $31.23 $34K72.2Kdirect Mar 7, 2007Mar 8, 2007 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −100 $31.22 $3K73.3Kdirect Mar 7, 2007Mar 8, 2007 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −1,300 $31.21 $41K73.4Kdirect Mar 7, 2007Mar 8, 2007 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −400 $31.25 $13K74.7Kdirect Mar 7, 2007Mar 8, 2007 Form 4 ↗
GARLAND THOMAS JDirector Purchase +1,050 $28.57 $30K7,403direct Oct 2, 2006Oct 3, 2006 Form 4 ↗
MEISENHEIMER F EVP and Controller Sale −2,166 $27.30 $59K16.7Kdirect Jun 26, 2006Jun 26, 2006 Form 4 ↗
BEST ROBERT WChairman, Pres, and CEO · Director Purchase +1,887 $26.50 $50K1,887indirect Jun 19, 2006Mar 11, 2008 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −300 $26.57 $8K49.6Kdirect Apr 6, 2006Apr 6, 2006 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −1,800 $26.54 $48K49.9Kdirect Apr 6, 2006Apr 6, 2006 Form 4 ↗
REDDY J PATRICKSr VP and CFO Sale −2,000 $26.02 $52K53.2Kdirect Dec 30, 2005Jan 3, 2006 Form 4 ↗

Source: SEC EDGAR Form 4 and Form 5 filings, SEC's quarterly bulk dataset through Jun 30, 2026, and KeyVex's half-hourly read of new filings since. Every row links its filing. Amendments are marked. Nothing here is a recommendation. All insider activity, market-wide →