STOCK TITAN

Board member Lizanne Thomas (NYSE: SO) receives deferred stock units

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Southern Company director Lizanne Thomas acquired additional deferred stock units as part of her board compensation. On the reported date, she received 464.2047 deferred stock units at a reference value of $96.94 per unit under the 2021 Equity and Incentive Compensation Plan. Following this grant and related dividend reinvestment, her total deferred stock unit holdings are 7,224.4488 units. These deferred stock units will be settled in shares of Southern Company common stock after her service on the Board ends, according to her elections under the Deferred Compensation Plan.

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Insider Thomas Lizanne
Role Director
Type Security Shares Price Value
Grant/Award Deferred Stock Units Holding 464.205 $96.94 $45K
Holdings After Transaction: Deferred Stock Units Holding — 7,224.449 shares (Direct)
Footnotes (1)
  1. 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. 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. Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.
Deferred stock units granted 464.2047 units Quarterly director equity retainer on 2026-04-01
Reference value per unit $96.94 per unit Value used for deferred stock unit grant
Total deferred stock units after grant 7,224.4488 units Holdings following reported transaction
Deferred Stock Units financial
"Represents quarterly director equity retainer paid under the Southern Company 2021 Equity and Incentive Compensation Plan and deferred pursuant to the Deferred Compensation Plan..."
Deferred stock units are promises from a company to give an employee shares of stock at a future date, often after certain conditions are met or after leaving the company. They function like a form of delayed compensation, allowing employees to earn shares over time. For investors, they represent potential future ownership in the company, but do not provide immediate voting rights or dividends until the shares are actually received.
Deferred Compensation Plan for Outside Directors of The Southern Company financial
"...and deferred pursuant to the Deferred Compensation Plan for Outside Directors of The Southern Company (Deferred Compensation Plan)."
dividend reinvestment feature financial
"Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan."
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Thomas Lizanne

(Last)(First)(Middle)
30 IVAN ALLEN JR. BLVD., NW

(Street)
ATLANTA GEORGIA 30308

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
SOUTHERN CO [ SO ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction 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)
CodeVAmount(A) or (D)Price
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction 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 (Month/Day/Year)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: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Deferred Stock Units Holding(1)$004/01/2026A464.2047 (2) (2)Southern Company Common Stock(3)$96.947,224.4488D
Explanation of Responses:
1. 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.
2. 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.
3. Includes additional deferred stock units acquired through the dividend reinvestment feature of the Deferred Compensation Plan.
/s/ Brittney Anderson, Attorney-in-Fact for Lizanne Thomas04/02/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Southern Co (SO) director Lizanne Thomas report in this Form 4?

Lizanne Thomas reported receiving 464.2047 deferred stock units as part of her quarterly director equity retainer. The units were valued at $96.94 each and granted under Southern Company’s 2021 Equity and Incentive Compensation Plan, increasing her deferred stock unit holdings to 7,224.4488.

What are deferred stock units in the Southern Co (SO) director plan?

Deferred stock units represent the right to receive one share of Southern Company common stock for each unit. They are granted as part of the director’s equity retainer and are deferred under the Deferred Compensation Plan for Outside Directors until after board service ends.

When will Lizanne Thomas’s Southern Co deferred stock units be settled?

The deferred stock units will be settled in shares of Southern Company common stock after Lizanne Thomas’s service on the Board terminates. Settlement timing follows the schedule she specified under the Deferred Compensation Plan for Outside Directors, with no separate exercise or expiration date on the units.

How many Southern Co deferred stock units does Lizanne Thomas now hold?

After the reported grant, Lizanne Thomas holds a total of 7,224.4488 deferred stock units. This figure includes the 464.2047 units from her quarterly director equity retainer and additional units acquired through the dividend reinvestment feature of the Deferred Compensation Plan for Outside Directors.

Is this Southern Co Form 4 an open-market stock purchase or sale?

This Form 4 reflects a compensation-related grant, not an open-market trade. The 464.2047 deferred stock units were awarded as a quarterly director equity retainer under Southern Company’s 2021 Equity and Incentive Compensation Plan and deferred through the outside directors’ Deferred Compensation Plan.