Southern EVP sells 6,669 shares at $96.55

Southern Company executive vice president Christopher Cummiskey sold 6,669 shares of Southern Company Common Stock in an open-market transaction at $96.55 per share.

Rhea-AI Filing Summary

Southern Company executive vice president Christopher Cummiskey sold 6,669 shares of Southern Company Common Stock in an open-market transaction at $96.55 per share. After the sale, he directly holds 30,800.4417 shares and indirectly holds 5,857.0111 shares through a 401(k) account.

Insights

Equity ownership and insider-trading analyst

EVP completes open-market sale while retaining a substantial remaining stake.

Executive vice president Christopher Cummiskey executed an open-market sale of 6,669 shares of Southern Company common stock at $96.55 per share. The filing characterizes this as a standard sale in the open market or a private transaction.

Following the sale, he still directly owns 30,800.4417 shares and indirectly holds 5,857.0111 shares via a 401(k). With no derivative positions reported and a sizable continuing stake, the transaction appears routine rather than a full exit, though it modestly reduces his equity exposure.

Insider Trade Summary

Net Seller: 6,669 shares

Net Sell 2 txns

Insider Cummiskey Christopher

Role EVP

Sold 6,669 shs ($644K)

Type	Security	Shares	Price	Value
Sale	Southern Company Common Stock	6,669	$96.55	$644K
holding	Southern Company Common Stock	--	--	--

Holdings After Transaction: Southern Company Common Stock — 30,800.4417 shares (Direct); Southern Company Common Stock — 5,857.0111 shares (Indirect, 401(k))

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Southern Co (SO) EVP Christopher Cummiskey report?

Christopher Cummiskey reported an open-market sale of 6,669 Southern Company shares. The shares of common stock were sold at a price of $96.55 per share on March 19, 2026, according to the Form 4 insider filing.

At what price did Southern Co (SO) EVP sell his shares?

The EVP sold 6,669 Southern Company shares at $96.55 per share. This price applies to the reported open-market transaction on March 19, 2026, as disclosed in the Form 4 filing for Southern Company common stock.

How many Southern Co (SO) shares does the EVP still own after the sale?

After the sale, the EVP directly owns 30,800.4417 Southern Company shares. He also indirectly holds 5,857.0111 additional shares through a 401(k) account, giving him a continuing equity stake in the company following the reported open-market transaction.

Was the Southern Co (SO) EVP’s transaction a buy or sell activity?

The reported insider activity was a sell transaction. The Form 4 identifies the code as an open-market sale of 6,669 shares of Southern Company common stock, with no corresponding purchases or derivative exercises disclosed for this date.

Does the Southern Co (SO) EVP hold any indirect shares after the reported sale?

Yes, the EVP continues to hold indirect shares via a 401(k) plan. Following the transaction, the filing shows 5,857.0111 Southern Company common shares held indirectly, in addition to his directly owned 30,800.4417 shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 03/19/2026 - 04:00 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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^*

Cummiskey Christopher

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/19/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Southern Company Common Stock	03/19/2026		S		6,669	D	$96.55	30,800.4417	D
Southern Company Common Stock								5,857.0111	I	401(k)

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Brittney Anderson, Attorney-in-Fact for Christopher Cummiskey	03/19/2026
	** Signature of Reporting Person	Date
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)