KIM MATTHEW M.

PrivateCIK: 2082705
Location

ATLANTA, GA

KIM MATTHEW M. (Comptroller) exercised options at SOUTHERN CO

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 2 exercises
InsiderKIM MATTHEW M.CIK 2082705
IssuerSOUTHERN COCIK 92122
Officer· Comptroller
Since Feb 2026
-283.00
Net shares
Net seller
$30.6K
Total sold
0
Open market trades
0B · 0S
6
Total transactions
685.00 acquired · 968.00 disposed
Non-Derivative Transactions4

Southern Company Common Stock

Direct
M · Option Exercise

Shares

+340.00

Price / share

Trade value

% of position

3.7%
1/31/2026
9.09K9.43K

Southern Company Common Stock

Direct
F · Tax Withholding

Shares

170.00

Price / share

$89.31

Trade value

$15.18K

% of position

1.8%
1/31/2026
9.43K9.26K

Southern Company Common Stock

Direct
M · Option Exercise

Shares

+345.00

Price / share

Trade value

% of position

3.7%
2/1/2026
9.26K9.60K

Southern Company Common Stock

Direct
F · Tax Withholding

Shares

173.00

Price / share

$89.31

Trade value

$15.45K

% of position

1.8%
2/1/2026
9.60K9.43K
Total

Net shares

+342.00

Net value

-$30.63K

Derivative Transactions2

Southern Co Restricted Stock Units

Direct
M · Option Exercise
Converts to

Southern Company Common Stock

317.00 shares

Shares

317.00

Strike price

0

Held after

318.00

Exercisable

1/31/2026

Southern Co Restricted Stock Units

Direct
M · Option Exercise
Converts to

Southern Company Common Stock

308.00 shares

Shares

308.00

Strike price

0

Held after

0.00

Exercisable

2/1/2026
Non-Derivative Holdings (Post-Transaction)1

Southern Company Common Stock

Indirect
Shares owned1.19K
Total
1.19K indirect1.19K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
KIM MATTHEW M. — Insider Transaction (Form 4) Filed Feb 3, 2026 | Finecho