ATO SEC Filings: 8-K, 10-Q, S-3 & 424B – Atmos Energy

Financials

TYPE

HEADLINE

FILED AT

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 5, 2026

11-K

Form 11-K - Annual report of employee stock purchase, savings and similar plans

Jun 25, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

May 6, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Feb 3, 2026

10-K

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Nov 14, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 6, 2025

News

TYPE

HEADLINE

FILED AT

8-K

Atmos Energy Corporation Announces Retirement of Kim R. Cocklin and Appointment of J. Kevin Akers as Chairman of the Board of Directors

Nov 4, 2026

8-K

Atmos Energy Corporation Reports Fiscal 2026 Earnings and Initiates Fiscal 2027 Guidance

Nov 4, 2026

8-K

Atmos Energy Corporation Completes $700 Million Senior Notes Public Offering

Oct 9, 2026

8-K

Atmos Energy Corporation Announces $700 Million Senior Notes Offering

Oct 9, 2026

8-K

Atmos Energy Corporation Appoints James H. Jeffries IV to Board of Directors

Aug 10, 2026

8-K

Atmos Energy Corporation Reports Fiscal 2026 Third Quarter Results and Reaffirms Guidance

Aug 5, 2026

Prospectus

TYPE

HEADLINE

FILED AT

424B2

Form 424B2 - Prospectus [Rule 424(b)(2)]

Oct 8, 2026

424B5

PENDING FIXED PRICE OFFERING | Bank: BNP PARIBAS

Oct 6, 2026

424B2

Form 424B2 - Prospectus [Rule 424(b)(2)]

Jun 17, 2026

424B5

PENDING FIXED PRICE OFFERING | Bank: J.P. Morgan, Mizuho, Wells Fargo Securities

Jun 15, 2026

424B3

Form 424B3 - Prospectus [Rule 424(b)(3)]

Feb 4, 2026

424B2

Form 424B2 - Prospectus [Rule 424(b)(2)]

Sep 22, 2025

Registrations

TYPE

HEADLINE

FILED AT

FWP

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Oct 6, 2026

FWP

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Jun 15, 2026

FWP

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Sep 18, 2025

FWP

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Jun 16, 2025

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Apr 30, 2025

S-3ASR

SHELF | Offering amount: $8,000,000,000.00

Dec 3, 2024

Proxies

TYPE

HEADLINE

FILED AT

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Dec 19, 2025

DEF 14A

Form DEF 14A - Other definitive proxy statements

Dec 19, 2025

PRE 14A

Form PRE 14A - Other preliminary proxy statements

Dec 9, 2025

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Dec 20, 2024

DEF 14A

Form DEF 14A - Other definitive proxy statements

Dec 20, 2024

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Dec 29, 2023

Ownerships

TYPE

HEADLINE

FILED AT

4/A

NEWMARTINEZ Jeffery D (Reporting)

Nov 9, 2026

3/A

NEWMARTINEZ Jeffery D (Reporting)

Nov 9, 2026

ROBBINS J MATT (Reporting)

Nov 4, 2026

MCDILL JOHN S (Reporting)

Nov 4, 2026

MARTINEZ Jeffery D (Reporting)

Nov 4, 2026

HARTSFIELD KAREN E (Reporting)

Nov 4, 2026

Other

TYPE

HEADLINE

FILED AT

LETTER

Form UPLOAD - SEC-generated letter

Apr 15, 2025

CORRESP

Form CORRESP - Correspondence

Mar 27, 2025

LETTER

Form UPLOAD - SEC-generated letter

Mar 7, 2025

EFFECT

Form EFFECT - Notice of Effectiveness

Jun 9, 2023

CORRESP

Form CORRESP - Correspondence

Jun 5, 2023

CORRESP

Form CORRESP - Correspondence

Jun 5, 2023

Atmos Energy Corporation ATO · SEC Filings