| Sep 4, 2026 (view filing)1:00 PM ET | Sep 3 | 1 day | Sena Peter P IIIChairman,President & CEO, SNC | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −4.27K | $88.59 | −$377.9K | −13.7%26.9K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Sep 4, 2026 (view filing)1:00 PM ET | Sep 3 | 1 day | Kim Matthew M.Comptroller | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −1.40K | $88.87 | −$124.4K | −21.9%4.99K after | |
| Sep 3, 2026 (view filing)10:00 AM ET | Sep 1 | 2 days | Kim Matthew M.Comptroller | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −100 | $88.45 | −$8.85K | −1.5%6.40K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Aug 7, 2026 (view filing)3:00 PM ET | Aug 6 | 1 day | Spainhour Sterling A Jr.EVP & CLO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −3.33K | $94.02 | −$313.4K | −8.6%35.2K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Aug 4, 2026 (view filing)10:30 AM ET | Aug 3 | 1 day | Kim Matthew M.Comptroller | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −100 | $94.28 | −$9.43K | −1.5%6.49K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jul 2, 2026 (view filing)2:00 PM ET | Jul 1 | 1 day | Kim Matthew M.Comptroller | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −100 | $95.77 | −$9.58K | −1.5%6.59K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jun 1, 2026 (view filing) | Jun 1 | Same day | Kim Matthew M.Comptroller | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −100 | $91.16 | −$9.12K | −1.5%6.69K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| May 4, 2026 (view filing) | May 1 | 3 days | Kim Matthew M.Comptroller | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −100 | $96.57 | −$9.66K | −1.5%6.79K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 31, 2026 (view filing) | Mar 30 | 1 day | Greene Kimberly S,Chairman, President & CEO, GPC | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −25.0K | $96.67 | −$2.42M | −19.4%103.6K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 19, 2026 (view filing) | Mar 19 | Same day | Cummiskey ChristopherEVP | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −6.67K | $96.55 | −$643.9K | −17.8%30.8K after | |
| Mar 19, 2026 (view filing) | Mar 18 | 1 day | Connally Stan WEVP & COO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −12.5K | $97.13 | −$1.21M | −7.2%161.5K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Feb 25, 2026 (view filing) | Feb 24 | 1 day | Kim Matthew M.Comptroller | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −5.12K | $95.15 | −$487.5K | −42.7%6.89K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Oct 1, 2025 (view filing) | Sep 30 | 1 day | Anderson Bryan DEVP | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −6.21K | $93.83 | −$582.3K | −10.8%51.5K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Aug 12, 2025 (view filing) | Aug 11 | 1 day | Spainhour Sterling A Jr.EVP & CLO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −2.38K | $95.02 | −$226.1K | −12.0%17.4K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jul 22, 2025 (view filing) | Jul 21 | 1 day | Greene Kimberly S,Chairman, President & CEO, GPC | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −13.2K | $95.00 | −$1.25M | −12.3%93.7K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| May 27, 2025 (view filing) | May 23 | 4 days | Cummiskey ChristopherEVP | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −12.3K | $89.54 | −$1.10M | −35.4%22.5K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Apr 1, 2025 (view filing) | Mar 31 | 1 day | Connally Stan WEVP & COO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −12.5K | $92.24 | −$1.15M | −7.7%149.4K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 11, 2025 (view filing) | Mar 10 | 1 day | Greene Kimberly S,Chairman, President & CEO, GPC | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −32.2K | $93.12 | −$3.00M | −23.2%106.8K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 4, 2025 (view filing) | Mar 3 | 1 day | Womack Christopher CChairman, President & CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −24.4K | $90.13 | −$2.20M | −21.8%87.7K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 4, 2025 (view filing) | Mar 3 | 1 day | Davis Martin BernardEVP & CIO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −1.13K | $89.61 | −$100.8K | −1.1%102.1K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Feb 26, 2025 (view filing) | Feb 25 | 1 day | Womack Christopher CChairman, President & CEO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −1.59K | $90.00 | −$143.4K | −1.4%112.1K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Feb 20, 2025 (view filing) | Feb 19 | 1 day | Cummiskey ChristopherEVP | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −944 | $86.00 | −$81.2K | −2.6%34.8K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Feb 12, 2025 (view filing) | Feb 11 | 1 day | Peoples James JeffreyChairman, President & CEO, APC | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −14.5K | $86.00 | −$1.25M | −52.3%13.2K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Feb 5, 2025 (view filing) | Feb 4 | 1 day | Cummiskey ChristopherEVP & CCO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −837 | $83.32 | −$69.7K | −3.6%22.5K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 6, 2024 (view filing) | Dec 5 | 1 day | Davis Martin BernardEVP and CIO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −1.17K | $85.90 | −$100.5K | −1.3%88.4K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Dec 6, 2024 (view filing) | Dec 5 | 1 day | Womack Christopher CCEO, President and Chairman | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −14.0K | $86.18 | −$1.21M | −15.9%73.9K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Nov 5, 2024 (view filing) | Nov 4 | 1 day | Spainhour Sterling A Jr.EVP, Chief Legal Officer & CCO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −793 | $88.54 | −$70.2K | −6.3%11.7K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Oct 8, 2024 (view filing) | Oct 4 | 4 days | Kerr, II James YChairman, President & CEO, GAS | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −30.0K | $89.64 | −$2.69M | −17.1%145.1K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Sep 9, 2024 (view filing) | Sep 6 | 3 days | Anderson Bryan DEVP & Pres. External Affairs | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −6.57K | $89.54 | −$587.8K | −12.9%44.5K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Aug 6, 2024 (view filing) | Aug 5 | 1 day | Spainhour Sterling A Jr.EVP, Chief Legal Officer & CCO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −2.38K | $88.99 | −$211.8K | −16.0%12.5K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jul 8, 2024 (view filing) | Jul 5 | 3 days | Wilson Anthony LPresident & CEO, MPC | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −6.90K | $77.61 | −$535.5K | −7.5%85.3K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jul 3, 2024 (view filing) | Jul 3 | Same day | Drake Sloane NEVP, CHRO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −12.0K | $77.61 | −$931.3K | −41.7%16.8K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| May 2, 2024 (view filing) | May 1-2 | 1 day | Greene Kimberly S,Chairman, President & CEO, GPC | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −20.0K | $75.02 | −$1.50M | −15.3%110.6K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Mar 12, 2024 (view filing) | Mar 11 | 1 day | Kuczynski Stephen ECEO, Southern Nuclear | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −5.00K | $68.92 | −$344.6K | −3.8%126.5K after | |
| Feb 16, 2024 (view filing) | Feb 15-16 | 1 day | Cummiskey ChristopherEVP & CCCS Officer | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −13.9K | $67.10 | −$931.9K | −38.2%22.5K after | 2 lotsThis row combines 2 trades of the same kind from one filing. The price is the value-weighted average.10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Feb 13, 2024 (view filing) | Feb 12 | 1 day | Kuczynski Stephen ECEO, Southern Nuclear | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −5.00K | $66.94 | −$334.7K | −3.7%129.6K after | |
| Feb 13, 2024 (view filing) | Feb 12 | 1 day | Cummiskey ChristopherEVP & CCCS Officer | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −883 | $66.94 | −$59.1K | −2.4%35.5K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Feb 7, 2024 (view filing) | Feb 6 | 1 day | Cummiskey ChristopherEVP & CCCS Officer | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −899 | $67.06 | −$60.3K | −3.8%22.5K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jan 18, 2024 (view filing) | Jan 17 | 1 day | Poroch David P.Comptroller | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −10.1K | $69.96 | −$706.5K | −26.0%28.7K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jan 10, 2024 (view filing) | Jan 10 | Same day | Kuczynski Stephen ECEO, Southern Nuclear | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −5.00K | $71.99 | −$359.9K | −4.7%101.3K after | |
| Dec 12, 2023 (view filing) | Dec 11 | 1 day | Kuczynski Stephen ECEO, Southern Nuclear | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −5.00K | $71.23 | −$356.1K | −4.5%106.3K after | |
| Nov 17, 2023 (view filing) | Nov 16 | 1 day | Poroch David P.Comptroller | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −10.0K | $69.39 | −$693.9K | −25.8%28.7K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Nov 13, 2023 (view filing) | Nov 10 | 3 days | Kuczynski Stephen ECEO, Southern Nuclear | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −5.00K | $68.39 | −$341.9K | −4.3%111.3K after | |
| Oct 11, 2023 (view filing) | Oct 10 | 1 day | Kuczynski Stephen ECEO, Southern Nuclear | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −5.00K | $66.00 | −$330.0K | −4.1%116.3K after | |
| Sep 12, 2023 (view filing) | Sep 11 | 1 day | Kuczynski Stephen ECEO, Southern Nuclear | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −5.00K | $67.83 | −$339.1K | −4.0%121.3K after | |
| Sep 6, 2023 (view filing) | Sep 5 | 1 day | Davis Martin BernardEVP and CIO | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −1.49K | $67.05 | −$99.9K | −2.0%72.8K after | |
| Aug 31, 2023 (view filing) | Aug 29 | 2 days | Cummiskey ChristopherEVP & CCCS Officer | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −5.00K | $68.30 | −$341.5K | −18.2%22.5K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Aug 11, 2023 (view filing) | Aug 10 | 1 day | Kuczynski Stephen ECEO, Southern Nuclear | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −5.00K | $69.70 | −$348.5K | −3.8%126.3K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jul 24, 2023 (view filing) | Jul 21 | 3 days | Greene Kimberly S,Chairman, President & CEO, GPC | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −20.0K | $72.62 | −$1.45M | −16.9%98.7K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
| Jul 11, 2023 (view filing) | Jul 10 | 1 day | Kuczynski Stephen ECEO, Southern Nuclear | SSaleThe insider sold shares on the open market or in a private deal. People sell for many reasons, such as paying taxes, diversifying or following a pre-set 10b5-1 plan, so a single sale usually says less than a purchase.Southern Company Common Stock | −5.00K | $70.58 | −$352.9K | −3.7%131.3K after | 10b5-1The filer checked the Rule 10b5-1 box: this trade was made under a trading plan set up in advance. |
