| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Drake Sloane N | EVP & CHRO | 30 IVAN ALLEN JR BLVD NW, ATLANTA | /s/ Brittney Anderson, Attorney-in-Fact for Sloane N. Drake | 10 Feb 2026 | 0001971188 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SO | Southern Company Common Stock | Options Exercise | $0 | +3,698 | +15% | $0.000000 | 28,961 | 06 Feb 2026 | Direct | F1 |
| transaction | SO | Southern Company Common Stock | Tax liability | $149,729 | -1,649 | -5.7% | $90.80 | 27,312 | 06 Feb 2026 | Direct | F2 |
| holding | SO | Southern Company Common Stock | 2,590 | 06 Feb 2026 | 401(k) |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SO | Southern Co Restricted Stock Units | Options Exercise | $0 | -3,314 | -100% | $0.000000 | 0 | 06 Feb 2026 | Southern Company Common Stock | 3,314 | $0.000000 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | Shares acquired upon the vesting of the final 1/2 of restricted stock units granted February 6, 2023. Includes 384 accrued dividend equivalents. |
| F2 | Shares withheld to satisfy required state and federal tax withholdings. |
| F3 | Represents the final 1/2 of restricted stock units granted on February 6, 2023. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. |