SOUTHERN CO (SO)
Utilities · Electric Services
SOUTHERN CO (SO) stock research on InvestAtlant: institutional ownership from 13F filings, insider Form 4 activity, and SEC context.
Top institutional holders (2026-Q3)
| Institution | Shares | Value | % Outstanding |
|---|---|---|---|
| INCOME RESEARCH & MANAGEMENT | 5,290,000 | — | — |
| Pictet Asset Management Holding SA | 3,785,562 | $313.79M | — |
| Sumitomo Mitsui Trust Group, Inc. | 2,430,312 | $201.45M | — |
| Calamos Advisors LLC | 2,327,098 | 6.33M | — |
| Assenagon Asset Management S.A. | 2,067,040 | 71.34M | — |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 1,847,794 | 53.16M | — |
| PRINCIPAL FINANCIAL GROUP INC | 1,368,086 | 10.51M | — |
| CONFLUENCE INVESTMENT MANAGEMENT LLC | 1,315,100 | 09.01M | — |
Recent insider transactions
| Date | Insider | Title | Type | Value |
|---|---|---|---|---|
| 2026-11-02 | Kim Matthew M. | Comptroller | Sale | $9.3K |
| 2026-10-01 | Kim Matthew M. | Comptroller | Sale | $8.3K |
| 2026-09-03 | Sena Peter P III | Chairman,President & CEO, SNC | Sale | $377.9K |
| 2026-09-03 | Kim Matthew M. | Comptroller | Sale | 24.4K |
| 2026-09-01 | Kim Matthew M. | Comptroller | Sale | $8.8K |
| 2026-08-06 | Spainhour Sterling A Jr. | EVP & CLO | Sale | $313.4K |
| 2026-08-03 | Kim Matthew M. | Comptroller | Sale | $9.4K |
| 2026-07-01 | Kim Matthew M. | Comptroller | Sale | $9.6K |