Southern Company (SO) holder Matthew Kim plans sale of 100 common shares

Rhea-AI Filing Summary

The Southern Company is the issuer of common stock covered by a notice of proposed sale. The filing relates to 100 shares of common stock, associated with a Performance Stock Vest for compensatory payment dated 02/27/2024, with Merrill Lynch listed in the securities information section.

The seller, Matthew Kim, is also reported to have sold 100 shares of common stock on 06/01/2026 and another 100 shares on 07/01/2026. The common stock is listed on the NYSE.

Key Figures

Shares to be sold: 100 shares Past sale on 06/01/2026: 100 shares Past sale on 07/01/2026: 100 shares +2 more

5 metrics

Shares to be sold 100 shares Common stock associated with Performance Stock Vest dated 02/27/2024

Past sale on 06/01/2026 100 shares Common stock sold by Matthew Kim during past 3 months

Past sale on 07/01/2026 100 shares Common stock sold by Matthew Kim during past 3 months

Performance Stock Vest date 02/27/2024 Date tied to compensatory Performance Stock Vest source of shares

Exchange listing NYSE Listing venue for The Southern Company common stock

Key Terms

Performance Stock Vest, Compensatory Payment, Securities Sold During The Past 3 Months

3 terms

Performance Stock Vest financial

"Common | 02/27/2024 | Performance Stock Vest | The Southern Company"

Compensatory Payment financial

"100 | 02/27/2024 | Compensatory Payment"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

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Available on EDGAR 08/03/2026 - 04:01 PM Accepted by SEC EDGAR 08/03/2026 - 04:00 PM Learn about SEC filing dates

FAQ

What stock is involved in this Form 144-related filing for SO?

The filing involves common stock of The Southern Company, which is listed on the NYSE. The notice covers a small amount of common shares associated with a compensatory award.

How many Southern Company (SO) shares are proposed to be sold?

The notice covers a proposed sale of 100 shares of The Southern Company common stock. These shares are tied to a Performance Stock Vest compensatory arrangement dated 02/27/2024.

Who is the selling security holder in this SO filing?

The selling security holder identified is Matthew Kim, with an address in Atlanta, Georgia. His name appears in connection with the issuer’s common stock and prior sales over the past three months.

What prior sales of Southern Company (SO) stock are disclosed?

The filing lists two prior sales by Matthew Kim: 100 shares of common stock on 06/01/2026 and another 100 shares on 07/01/2026, each reported in the past three months section.

What is the origin of the Southern Company (SO) shares being sold?

The 100 shares covered by the notice are linked to a Performance Stock Vest dated 02/27/2024, described as a Compensatory Payment, indicating they arose from a compensation-related stock award.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Merrill Lynch 3455 Peachtree Road NE Suite 1000 Atlanta GA 30326	100	9428	1150362966	08/03/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/27/2024	Performance Stock Vest	The Southern Company			100	02/27/2024	Compensatory Payment

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Matthew Kim 30 Ivan Allen Jr Blvd NW Atlanta GA 30308	Common	07/01/2026	100	9577
Matthew Kim 30 Ivan Allen Jr Blvd NW Atlanta GA 30308	Common	06/01/2026	100	9116

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)