Southern Co (SO) Comptroller Matthew M. Kim Sells 100 Shares

What Happened
Matthew M. Kim, Comptroller of Southern Co (ticker: SO), reported an open-market sale of 100 shares on 2026-06-01 at $91.16 per share, for total proceeds of approximately $9,116. This was a straightforward sale (transaction code S) rather than a purchase or option exercise.

Key Details

• Transaction date: 2026-06-01
• Price per share: $91.16; Shares sold: 100; Gross proceeds: ~$9,116
• Transaction type: Open-market sale (code S)
• Shares owned after the transaction: Not disclosed in the provided filing
• Footnotes/plan: No 10b5-1 plan, tax withholding, or other footnotes were reported in the supplied data
• Filing timeliness: Form filed on 2026-06-01 (same day as the transaction), indicating a timely report

Context
Insider sales can be for many personal or financial reasons and do not by themselves indicate management’s view of the company. This sale is small in dollar terms (~$9.1k) compared with many insider transactions; retail investors should weigh it accordingly and consult the full Form 4 for additional disclosure.