FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      
1. Name and Address of Reporting Person * Kerr, II James Y 2. Issuer Name and Ticker or Trading Symbol SOUTHERN CO [ SO ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
EVP, Chief Legal Officer & CCO
(Last)         (First)         (Middle)
30 IVAN ALLEN JR. BLVD., NW
3. Date of Earliest Transaction (MM/DD/YYYY)
4/20/2021
(Street)
ATLANTA, GA 30308
(City)       (State)       (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)
 
6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Southern Company Common Stock  4/20/2021    M    25000  A $42.16  126918  D   
Southern Company Common Stock  4/20/2021    S    25000  D $66.16  101918  D   
Southern Company Common Stock                 25729.7028  I  401K 

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Option Right to Buy (1) $42.16  4/20/2021    M        25000   3/10/2015  3/10/2024  Southern Company Common Stock  25000  $0.00  25000  D   

Explanation of Responses:
(1)  Options were exercised and shares were sold pursuant to a Rule 10b5-1 plan.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Kerr, II James Y
30 IVAN ALLEN JR. BLVD., NW
ATLANTA, GA 30308


EVP, Chief Legal Officer & CCO

Signatures
/s/ Marcia R. DeMar, Attorney-in-Fact for James Y. Kerr II 4/21/2021
**Signature of Reporting Person Date