SOUTHERN CO — Director's Dealing 2024

Feb 9, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SOUTHERN CO (SO)
CIK: 0000092122
Period of Report: 2024-02-07

Reporting Person: Wilson Anthony L (Chairman, President & CEO, MPC)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-02-07	Southern Company Common Stock	A	23580	$0.00	Acquired	100891	Direct
2024-02-07	Southern Company Common Stock	F	10459	$66.95	Disposed	90432	Direct
2024-02-07	Southern Company Common Stock	M	1610	$0.00	Acquired	92042	Direct
2024-02-07	Southern Company Common Stock	F	711	$66.95	Disposed	91331	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-02-07	Southern Co. Performance Stock Units Holding	$0.00	M	1546	Disposed		Southern Company Common Stock (1546)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Southern Company Common Stock	22462.0009	Indirect

Footnotes

F1: Shares acquired upon vesting of performance share units under Company's Performance Share Program for the 2021-2023 award. The Compensation and Talent Development Committee certified performance on February 7, 2024. Includes accrued dividend equivalent units.

F2: Shares withheld to satisfy required state and federal tax withholding requirements.

F3: Shares acquired upon vesting of first 1/3 of performance restricted stock units granted on February 1, 2023. The Compensation and Talent Development Committee certified performance on February 7, 2024. Includes 64 accrued dividend equivalent units.

F4: Represents first 1/3 of performance restricted stock units granted on February 1, 2023. The remaining award will vest 1/3 in 2025 and 1/3 in 2026. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.