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SO The Southern Company

Insider figures are trailing 90 days, open-market Form 4 only. Institutional figures are the latest reported quarter. These windows are not simultaneous.

-$842K net selling - trailing 90 days

0 buyers - 4 unique sellers

Historical context: most recent complete month (2026-09) is the 35th percentile of this ticker's monthly net P/S flow over 24 complete months. Lower percentiles are more selling; higher are more buying. P10–P90: -$2.3M to $0.

Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

open-market Form 4 only - grants, exercises, tax withholding excluded. ~ derived from SEC-reported shares x price.

Insider net $ (monthly)open-market Form 4 only - grants, exercises, tax withholding excluded$10.0M$5.0M$0-$5.0M-$10.0M2024-10 -$2.7M2024-11 -$70K2024-12 -$1.3M2025-01 $02025-02 -$1.5M2025-03 -$6.5M2025-04 $02025-05 -$1.1M2025-06 $02025-07 -$1.3M2025-08 -$226K2025-09 -$582K2025-10 $02025-11 $02025-12 $02026-01 $02026-02 -$487K2026-03 -$4.3M2026-04 $02026-05 -$10K2026-06 -$9K2026-07 -$10K2026-08 -$323K2026-09 -$511K2026-10 -$8KOct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26Oct 26~ derived from SEC-reported shares x price. Hatched: excluded (implausible price) or unpriced.

Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

Who is responsible

Insider Role Net activity Rows
Sena Peter P III Chairman,President & CEO, SNC -~$0.4M 1
Spainhour Sterling A Jr. EVP & CLO -~$0.3M 1
Kim Matthew M. Comptroller -~$0.1M 3
Kim Matthew M. Comptroller -~$8K 1

Transactions

Date Insider Role Type Shares Price Value
October 1, 2026 Kim Matthew M. Comptroller S -100 82.73 ~$8K
September 3, 2026 Sena Peter P III Chairman,President & CEO, SNC S -4266 88.59 ~$0.4M
September 3, 2026 Kim Matthew M. Comptroller S -1400 88.87 ~$0.1M
September 1, 2026 Kim Matthew M. Comptroller S -100 88.45 ~$9K
August 6, 2026 Spainhour Sterling A Jr. EVP & CLO S -3333 94.02 ~$0.3M
August 3, 2026 Kim Matthew M. Comptroller S -100 94.28 ~$9K
July 1, 2026 Kim Matthew M. Comptroller S -100 95.77 ~$10K
June 1, 2026 Kim Matthew M. Comptroller S -100 91.16 ~$9K
May 1, 2026 Kim Matthew M. Comptroller S -100 96.57 ~$10K
March 30, 2026 Greene Kimberly S, Chairman, President & CEO, GPC S -25000 96.67 ~$2.4M
March 19, 2026 Cummiskey Christopher EVP S -6669 96.55 ~$0.6M
March 18, 2026 Connally Stan W EVP & COO S -12500 97.13 ~$1.2M
February 24, 2026 Kim Matthew M. Comptroller S -5123 95.15 ~$0.5M
September 30, 2025 Anderson Bryan D EVP S -6206 93.83 ~$0.6M
August 11, 2025 Spainhour Sterling A Jr. EVP & CLO S -2380 95.02 ~$0.2M
July 21, 2025 Greene Kimberly S, Chairman, President & CEO, GPC S -13158 95 ~$1.3M
May 23, 2025 Cummiskey Christopher EVP S -12335 89.54 ~$1.1M
March 31, 2025 Connally Stan W EVP & COO S -12500 92.24 ~$1.2M
March 10, 2025 Greene Kimberly S, Chairman, President & CEO, GPC S -32190 93.12 ~$3.0M
March 3, 2025 DAVIS MARTIN BERNARD EVP & CIO S -1125 89.61 ~$0.1M
March 3, 2025 WOMACK CHRISTOPHER C Chairman, President & CEO S -24407 90.13 ~$2.2M
February 25, 2025 WOMACK CHRISTOPHER C Chairman, President & CEO S -1593 90 ~$0.1M
February 19, 2025 Cummiskey Christopher EVP S -944 86 ~$81K
February 11, 2025 Peoples James Jeffrey Chairman, President & CEO, APC S -14540 86 ~$1.3M
February 4, 2025 Cummiskey Christopher EVP & CCO S -837 83.32 ~$70K
December 5, 2024 DAVIS MARTIN BERNARD EVP and CIO S -1170 85.9 ~$0.1M
December 5, 2024 WOMACK CHRISTOPHER C CEO, President and Chairman S -14000 86.18 ~$1.2M
November 4, 2024 Spainhour Sterling A Jr. EVP, Chief Legal Officer & CCO S -793 88.54 ~$70K
October 4, 2024 Kerr, II James Y Chairman, President & CEO, GAS S -30000 89.64 ~$2.7M
September 6, 2024 Anderson Bryan D EVP & Pres. External Affairs S -6565 89.54 ~$0.6M