KIM MATTHEW M.

PrivateCIK: 2082705
Location

ATLANTA, GA

Senior insider sale

Comptroller at SOUTHERN CO — senior position signals high conviction

$152.3K

1.70K shares

What this filing means

KIM MATTHEW M. plans to sell 1.70K shares of SOUTHERN CO valued at approximately $152.3K. 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
1.70K
Shares to sell
$152.3K
Approx. market value
1.40K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months3
Sort

Restricted Stock Unit Vest

Compensatory Payment

2/3/2024
116.00

Performance Stock Vest

Compensatory Payment

2/12/2021
799.00

Performance Stock Vest

Compensatory Payment

2/11/2020
485.00
Total acquired1.40K
Planned & Completed Dispositions4
Sort

Completed

Completed

Units to sell

100.00

Market value

$8.8K

9/1/2026
Completed

Units to sell

100.00

Market value

$9.4K

8/3/2026
Completed

Units to sell

100.00

Market value

$9.6K

7/1/2026

Planned — Approximate Date

NYSEPlanned

Units to sell

1.40K

Market value

$124.4K

9/3/2026
Total

Units

1.70K

Value

$152.3K