Matthew M. Kim - 11 Feb 2026 Form 4 Insider Report for SOUTHERN CO (SO)

Role
Comptroller
Signature
/s/ Brittney Anderson, Attorney-in-Fact for Matthew M. Kim
Issuer symbol
SO
Transactions as of
11 Feb 2026
Net transactions value
-$182,992
Form type
4
Filing time
13 Feb 2026, 15:52:20 UTC
Previous filing
09 Feb 2026
Next filing
25 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Kim Matthew M. Comptroller 30 IVAN ALLEN JR. BLVD., NW, ATLANTA /s/ Brittney Anderson, Attorney-in-Fact for Matthew M. Kim 13 Feb 2026 0002082705

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SO Southern Company Common Stock Award $0 +4,450 +46% $0.000000 14,025 11 Feb 2026 Direct F1
transaction SO Southern Company Common Stock Tax liability $182,992 -2,014 -13% $90.86 14,025 11 Feb 2026 Direct F2
holding SO Southern Company Common Stock 1,203 11 Feb 2026 401(k)
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares acquired upon vesting of performance share units under Company's Performance Share Program for the 2023-2025 award. The Compensation and Talent Development Committee certified performance on February 11, 2026. Includes accrued dividend equivalent units.
F2 Shares withheld to satisfy required state and federal tax withholding requirements.