| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Wilson James Denson Jr | Chief Revenue Officer | C/O ADTRAN HOLDINGS, INC., 901 EXPLORER BOULEVARD, HUNTSVILLE | /s/ Dan Ragsdale, by power of attorney | 22 Jan 2026 | 0001371377 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ADTN | Common Stock | Tax liability | $7,069 | -765 | -0.6% | $9.24 | 127,458 | 20 Jan 2026 | Direct | F1 |
| holding | ADTN | Common Stock | 4,247 | 20 Jan 2026 | 401(k) Plan |
| Id | Content |
|---|---|
| F1 | Shares delivered to the Issuer for the payment of withholding taxes due upon the vesting of previously granted restricted stock units. |