Thomas A. Fanning - Apr 10, 2023 Form 4 Insider Report for SOUTHERN CO (SO)

Role: CEO & Chairman
Signature: /s/ Marcia R. DeMar, Attorney-in-Fact for Thomas A. Fanning
Stock symbol: SO
Transactions as of: Apr 10, 2023
Transactions value $: -$3,577,000
Form type: 4
Date filed: 4/11/2023, 04:41 PM
Previous filing: Feb 15, 2023
Next filing: May 11, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SO	Southern Company Common Stock	Sale	-$3.58M	-50K	-5.28%	$71.54	898K	Apr 10, 2023	Direct	F1, F2
holding	SO	Southern Company Common Stock						17.3K	Apr 10, 2023	By 401(K)
holding	SO	Southern Company Common Stock						114K	Apr 10, 2023	By Grantor Retained Annuity Trust

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id	Content
F1	Shares sold pursuant to a 10b5-1 trading plan entered into on February 24, 2023 for estate, financial and tax planning purposes. Plan allows for the sale of up to 150,000 shares from 4/10/2023 through 6/12/2023. After completion of the transactions, Mr. Fanning will continue to hold shares of Southern common stock that significantly exceed his share ownership requirements.
F2	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.18 to $71.89, inclusive. The reporting person undertakes to provide to Southern Company, any security holder of Southern Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Content

Shares sold pursuant to a 10b5-1 trading plan entered into on February 24, 2023 for estate, financial and tax planning purposes. Plan allows for the sale of up to 150,000 shares from 4/10/2023 through 6/12/2023. After completion of the transactions, Mr. Fanning will continue to hold shares of Southern common stock that significantly exceed his share ownership requirements.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.18 to $71.89, inclusive. The reporting person undertakes to provide to Southern Company, any security holder of Southern Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.