Sterling A Spainhour Jr sold $313K of Southern Co (SO) stock

Sterling A Spainhour Jr, EVP & Clo of Southern Co (SO), sold 3,333 shares of SO stock worth $313K, per an SEC Form 4 filed Aug 7, 2026.

The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.

The trade happened on Aug 6, 2026, 1 day before it was made public.

SO has moved -8.0% since the trade date, from $92.90 to $85.44 (Sep 21, 2026 close).