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 $844k · 6net −$844k
$10k$10k$100k$100k$1M$1MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 12Sep 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
Aug 6, 2026 SForm 4 →Aug 7, 3:00 pm EDTSterling A Spainhour Jr.EVP & CLO3,333$94.02$313,36935,219−8.65%10b5-1
Aug 3, 2026 SForm 4 →Aug 4, 10:30 am EDTMatthew M. KimComptroller100$94.28$9,4286,488−1.52%10b5-1
Jul 1, 2026 SForm 4 →Jul 2, 2:00 pm EDTMatthew M. KimComptroller100$95.77$9,5776,588−1.50%10b5-1
Jun 28, 2026 FMForm 4 →Jun 29, 4:00 pm EDTPeter P Sena IIIChairman,President & CEO, SNC1,028$97.16$30,70331,201—

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

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jul 1, 2026 AForm 4 →Jul 2, 10:17 am EDTAnthony F Earley Jr.Director703$95.12$66,875859—
Jul 1, 2026 AForm 4 →Jul 2, 10:17 am EDTShantella E. CooperDirector473$95.12$45,00032,606—
Jul 1, 2026 AForm 4 →Jul 2, 10:17 am EDTWilliam G Smith Jr.Director867$95.12$82,500163,013—
Jul 1, 2026 AForm 4 →Jul 2, 10:17 am EDTDavid E MeadorDirector802$95.12$76,2509,452—
Jul 1, 2026 AForm 4 →Jul 2, 10:16 am EDTDavid J GrainDirector854$95.12$81,25086,881—
Jul 1, 2026 AForm 4 →Jul 2, 10:16 am EDTJohn M Turner Jr.Director802$95.12$76,2503,417—
Jul 1, 2026 AForm 4 →Jul 2, 10:16 am EDTLizanne ThomasDirector473$95.12$45,0007,758—
Jul 1, 2026 AForm 4 →Jul 2, 10:16 am EDTKristine L SvinickiDirector473$95.12$45,00011,597—
Jul 1, 2026 AForm 4 →Jul 2, 10:16 am EDTJohn D JohnsDirector473$95.12$45,00088,551—
Jul 1, 2026 AForm 4 →Jul 2, 10:16 am EDTJanaki AkellaDirector473$95.12$45,00021,179—
Jul 1, 2026 AForm 4 →Jul 2, 10:15 am EDTJames O EtheredgeDirector473$95.12$45,0002,883—
Jun 28, 2026 MForm 4 →Jun 29, 4:00 pm EDTPeter P Sena IIIChairman,President & CEO, SNC667——667—