ATMOS ENERGY CORP (ATO) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-07-02

ATMOS ENERGY CORP (ATO) has filed 8 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-02. 3 Form 8-K material event filings were reported by ATO in the last 90 days. InsiderAlpha tracks every ATO SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About ATMOS ENERGY CORP (ATO)

SIC classificationNatural Gas Distribution (SIC 4924)
SEC CIK0000731802

90-Day SEC Filing Activity

Form 4 filings (90d)8
Form 8-K filings (90d)3
Latest Form 4 filing2026-07-02

Recent ATO Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
GARZA RAFAEL GDirectorA — Grant or award65$172.92$11KSEC
FAULK MICHELLEVice President & ControllerF — Tax withholding / forfeiture70$189.74$13KSEC
HARTSFIELD KAREN ESenior AdvisorM — Option exercise2.8K$189.74$534KSEC
HARTSFIELD KAREN ESenior AdvisorF — Tax withholding / forfeiture1.0K$189.74$198KSEC
ROBBINS J MATTSR VP, HUMAN RESOURCESF — Tax withholding / forfeiture1.0K$189.74$198KSEC
AKERS JOHN KPRESIDENT & CEOF — Tax withholding / forfeiture6.2K$187.74$1.17MSEC
Forsythe Christopher TSR VICE PRESIDENT & CFOM — Option exercise4.0K$189.74$753KSEC
ROBBINS J MATTSR VP, HUMAN RESOURCESM — Option exercise2.8K$189.74$534KSEC
MCDILL JOHN SSR VP, UTILITY OPERATIONSF — Tax withholding / forfeiture1.0K$189.74$198KSEC
MCDILL JOHN SSR VP, UTILITY OPERATIONSM — Option exercise2.8K$189.74$534KSEC
AKERS JOHN KPRESIDENT & CEOM — Option exercise16.9K$189.74$3.20MSEC
Forsythe Christopher TSR VICE PRESIDENT & CFOF — Tax withholding / forfeiture1.6K$189.74$297KSEC
FAULK MICHELLEVice President & ControllerM — Option exercise175$189.74$33KSEC
GARZA RAFAEL GDirectorA — Grant or award60$185.09$11KSEC
COMPTON KELLY HDirectorM — Option exercise1.1K$184.73$200KSEC

All transactions sourced from SEC EDGAR Form 4 filings for ATMOS ENERGY CORP (ATO). Updated in real time as new filings are submitted to the SEC.

Most-Active ATO Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
FAULK MICHELLE3$46K
HARTSFIELD KAREN E3$732K
MCDILL JOHN S3$732K
Forsythe Christopher T3$1.05M
AKERS JOHN K3$4.37M

Recent ATO Form 8-K Material Events

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in ATO insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

ATO Insider Trading — FAQ

What is the latest insider trade for ATO?
ATMOS ENERGY CORP (ATO) had 8 insider filings in the last 90 days, with the most recent on 2026-07-02. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying ATO stock?
0 insider purchases of ATO were filed in the last 90 days.
How many insiders are selling ATO stock?
0 insider sales of ATO were filed in the last 90 days.
Where can I see ATO SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every ATO SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

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