KIM MATTHEW M.

PrivateCIK: 2082705
Location

ATLANTA, GA

Senior insider sale

Comptroller at SOUTHERN CO — senior position signals high conviction

$487.5K

5.12K shares

What this filing means

KIM MATTHEW M. plans to sell 5.12K shares of SOUTHERN CO valued at approximately $487.5K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderKIM MATTHEW M.CIK 2082705
IssuerSOUTHERN COCIK 92122
Officer· Comptroller
Since Feb 2026
5.12K
Shares to sell
$487.5K
Approx. market value
5.12K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months17
Sort

Performance Stock Unit Vest

Compensatory Payment

2/11/2026
1.04K

Performance Stock Unit Vest

Compensatory Payment

2/11/2026
1.40K

Restricted Stock Unit Vest

Compensatory Payment

2/5/2026
5.00

Restricted Stock Unit Vest

Compensatory Payment

2/5/2026
141.00

Restricted Stock Unit Vest

Compensatory Payment

2/1/2026
154.00

Restricted Stock Unit Vest

Compensatory Payment

2/1/2026
18.00

Restricted Stock Unit Vest

Compensatory Payment

1/31/2026
159.00

Restricted Stock Unit Vest

Compensatory Payment

1/31/2026
11.00

Open Market Purchase

Compensatory Payment

6/2/2025
78.00

Performance Stock Unit Vest

Compensatory Payment

2/5/2025
744.00

Performance Stock Unit Vest

Compensatory Payment

2/5/2025
227.00

Restricted Stock Unit Vest

Compensatory Payment

1/31/2025
6.00

Restricted Stock Unit Vest

Compensatory Payment

1/31/2025
159.00

Restricted Stock Unit Vest

Compensatory Payment

2/13/2024
8.00

Restricted Stock Unit Vest

Compensatory Payment

2/13/2024
105.00

Performance Stock Unit Vest

Compensatory Payment

2/7/2024
844.00

Performance Stock Unit Vest

Compensatory Payment

2/7/2024
29.00
Total acquired5.12K
Planned & Completed Dispositions1
Sort
NYSEPlanned

Units to sell

5.12K

Market value

$487.5K

2/24/2026
Total

Units

5.12K

Value

$487.5K

KIM MATTHEW M. — Planned Insider Sale (Form 144) | Finecho