SOUTHERN CO — Director's Dealing 2021

Feb 5, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SOUTHERN CO (SO)
CIK: 0000092122
Period of Report: 2021-02-03

Reporting Person: Crosswhite Mark A. (Chairman, President & CEO, APC)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-03	Southern Company Common Stock	M	3585	$0.00	Acquired	100684	Direct
2021-02-03	Southern Company Common Stock	F	1650	$59.45	Disposed	99034	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-03	Performance Restricted Stock Units	$0.00	M	3437	Disposed		Southern Company Common Stock (3437)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Southern Company Common Stock	100	Indirect
Southern Company Common Stock	15330.0482	Indirect

Footnotes

F1: Shares acquired upon vesting of first 1/3 of performance restricted stock units granted on February 11, 2020. The Compensation Committee and Management Succession Committee certified performance on February 3, 2021. Includes 148 accrued dividend equivalent units.

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

F3: Represents performance share units granted on February 11, 2020. The Compensation and Management Succession Committee certified performance on February 3, 2021 and the first 1/3 vested. The remaining award will vest 1/3 in 2022 and 1/3 in 2023. Each performance restricted stock unit represents the right to receive, at statement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.