STOCK TITAN

Southern Company (NYSE: SO) director receives quarterly deferred stock unit award

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

Rhea-AI Filing Summary

Southern Company director Shantella E. Cooper received a routine quarterly equity award in the form of deferred stock units. She acquired 464.2047 deferred stock units valued at $96.94 per unit, increasing her holdings to 31,867.5322 deferred stock units. Each unit will be settled in one share of Southern Company common stock after her Board service ends, under the company’s deferred compensation and equity incentive plans.

Positive

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Insider Cooper Shantella E.
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 — 31,867.532 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 April 1, 2026
Reference price per unit $96.94 per unit Price associated with the 464.2047 deferred stock units
Total deferred stock units after grant 31,867.5322 units Holdings following the reported transaction
Settlement ratio 1 share per unit Each deferred stock unit equals one Southern Company common share
Deferred stock units financial
"Represents quarterly director equity retainer paid ... Each deferred stock unit represents the right to receive one share"
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.
quarterly director equity retainer financial
"Represents quarterly director equity retainer paid under the Southern Company 2021 Equity and Incentive Compensation Plan"
Deferred Compensation Plan for Outside Directors financial
"deferred pursuant to the Deferred Compensation Plan for Outside Directors of The Southern Company"
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*
Cooper Shantella E.

(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 Stock464.2047$96.9431,867.5322(3)D
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 Shantella E. Cooper04/02/2026
** 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 insider transaction did Southern Company (SO) report for Shantella E. Cooper?

Southern Company reported that director Shantella E. Cooper received a grant of 464.2047 deferred stock units as a quarterly director equity retainer. These units are part of her standard Board compensation and will be settled in Southern Company common stock in the future.

How many Southern Company deferred stock units does Shantella E. Cooper hold after this Form 4?

After the latest grant, Shantella E. Cooper holds a total of 31,867.5322 deferred stock units. Each deferred stock unit represents the right to receive one share of Southern Company common stock following her service on the Board.

What are deferred stock units in Southern Company’s (SO) director compensation?

Deferred stock units are equity-based awards where each unit equals one future share of Southern Company common stock. For outside directors, quarterly equity retainers can be deferred into these units under the company’s Deferred Compensation Plan for Outside Directors.

When will Shantella E. Cooper’s Southern Company deferred stock units be settled?

Her deferred stock units will be settled in shares of Southern Company common stock after her service on the Board ends. The specific settlement date or schedule is determined under the Deferred Compensation Plan for Outside Directors, as elected by the director.

Does the Form 4 for Southern Company (SO) show a stock purchase or sale by Shantella E. Cooper?

The Form 4 does not show an open-market purchase or sale. It reports an acquisition coded as a grant or award of 464.2047 deferred stock units as part of her quarterly director equity retainer, plus units added through dividend reinvestment.

What plan governs the deferred stock units granted to Southern Company director Shantella E. Cooper?

The deferred stock units arise from the Southern Company 2021 Equity and Incentive Compensation Plan and are deferred under the Deferred Compensation Plan for Outside Directors. The plan also includes a dividend reinvestment feature that adds additional deferred stock units over time.