| 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 | 19 Nov 2025 | 0001371377 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ADTN | Common Stock | Tax liability | $3,430 | -468 | -0.36% | $7.33 | 128,223 | 17 Nov 2025 | Direct | F1 |
| holding | ADTN | Common Stock | 4,247 | 17 Nov 2025 | 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. |