| 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 | 28 Jan 2026 | 0001371377 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ADTN | Common Stock | Award | $0 | +3,777 | +3% | $0.000000 | 129,010 | 26 Jan 2026 | Direct | F1 |
| transaction | ADTN | Common Stock | Tax liability | $10,044 | -1,087 | -0.84% | $9.24 | 127,923 | 26 Jan 2026 | Direct | F2 |
| holding | ADTN | Common Stock | 4,247 | 26 Jan 2026 | 401(k) Plan |
| Id | Content |
|---|---|
| F1 | These shares represent the vesting of performance stock units that were awarded pursuant to a grant on January 20, 2023 under the Amended and Restated ADTRAN Holdings, Inc. 2020 Employee Stock Incentive Plan. |
| F2 | Shares delivered to the Issuer for the payment of withholding taxes due upon the vesting of previously granted performance stock units. |