Anthony F. Earley Jr. - 01 Oct 2026 Form 4 Insider Report for SOUTHERN CO (SO)

Reporting relationship: Director
Issuer ticker: SO
Reported as of: 01 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 05 Oct 2026, 14:12:06 UTC
Prior SEC filing: 02 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Brittney Anderson, Attorney-in-Fact for Anthony F. Earley, Jr.

Filing notes and source

Key filing fact

Anthony F. Earley Jr. filed Form 4 for SOUTHERN CO (SO) on 05 Oct 2026.

Key facts

This page summarizes Anthony F. Earley Jr.'s Form 4 filing for SOUTHERN CO (SO).
2 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 05 Oct 2026, 14:12.

Change

Previous filing in this sequence was filed on 02 Jul 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001167316 Primary reporting owner

EARLEY ANTHONY F JR

Relationship: Director
Address: 30 IVAN ALLEN JR. BLVD., NW, ATLANTA
Signature: /s/ Brittney Anderson, Attorney-in-Fact for Anthony F. Earley, Jr.
Signature date: 05 Oct 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

SO transaction Derivative

Deferred Stock Units Holding

Award

Transaction value
Shares: +539
Change %: +1.7%
Price: $83.47^*
Shares after: 32,408
Date: 01 Oct 2026
Ownership: Direct
Underlying class: Southern Company Common Stock
Underlying amount: 539
Exercise price: $0.000000
Footnotes: F1, F2, F3

SO transaction Derivative

Phantom Stock Units

Award

Transaction value
Shares: +262
Change %: +30%
Price: $83.47^*
Shares after: 1,136
Date: 01 Oct 2026
Ownership: Direct
Underlying class: Southern Company Common Stock
Underlying amount: 262
Exercise price: $0.000000
Footnotes: F4, F5, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

Represents quarterly director equity retainer paid under the Southern Company 2021 Equity and Incentive Compensation Plan and deferred pursuant to the Deferred Compensation Plan for Outside Directors of The Southern Company (Deferred Compensation Plan). Each deferred stock unit represents the right to receive one share of Southern Company common stock.

Footnote F2

Deferred stock units are settled in shares of Southern Company common stock on the date(s) following the termination of the reporting person's service on the Board as specified by the reporting person pursuant to the Deferred Compensation Plan. There is no exercise or expiration date.

Footnote F3

Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.

Footnote F4

Represents quarterly director cash retainer paid under the Southern Company 2021 Equity and Incentive Compensation Plan and deferred pursuant to the Deferred Compensation Plan. Each phantom stock unit represents the right to receive the cash value of one share of Southern Company common stock.

Footnote F5

Phantom stock units are settled in cash on the date(s) following the termination of the reporting person's service on the Board as specified by the reporting person pursuant to the Deferred Compensation Plan.

Footnote F6

Includes additional phantom stock units credited to the reporting person's account to reflect dividends paid on common stock prior to settlement pursuant to the Deferred Compensation Plan.