Form4insider filings, from the source

Company · CIK 0000092122 · SIC 4911 — Electric Services · NYSE

SOUTHERN CO · SO

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $511k · 3net −$511k
$10k$10k$100k$100k$1M$1MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 3, 2026 SForm 4 →Sep 4, 1:00 pm EDTMatthew M. KimComptroller1,400$88.87$124,4184,988−21.9%
Sep 3, 2026 SForm 4 →Sep 4, 1:00 pm EDTPeter P Sena IIIChairman,President & CEO, SNC4,266$88.59$377,92526,935−13.7%10b5-1
Sep 1, 2026 SForm 4 →Sep 3, 10:00 am EDTMatthew M. KimComptroller100$88.45$8,8456,400−1.54%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.