| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| SMITH GARY B | President, CEO, Director | C/O CIENA CORPORATION, 7035 RIDGE RD., HANOVER | By: Michelle Rankin For: Gary B Smith | 22 Dec 2025 | 0001032553 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CIEN | Common Stock | Tax liability | -$688K | -2.99K | -0.6% | $230.34 | 494K | 20 Dec 2025 | Direct | F1, F2 |
| transaction | CIEN | Common Stock | Tax liability | -$715K | -3.1K | -0.63% | $230.34 | 491K | 20 Dec 2025 | Direct | F2, F3 |
| transaction | CIEN | Common Stock | Tax liability | -$401K | -1.74K | -0.35% | $230.34 | 490K | 20 Dec 2025 | Direct | F2, F4 |
| transaction | CIEN | Common Stock | Tax liability | -$382K | -1.66K | -0.34% | $230.34 | 488K | 20 Dec 2025 | Direct | F2, F5 |
| transaction | CIEN | Common Stock | Tax liability | -$13.2M | -57.3K | -11.74% | $230.34 | 431K | 20 Dec 2025 | Direct | F2, F6 |
| transaction | CIEN | Common Stock | Tax liability | -$2.51M | -10.9K | -2.53% | $230.34 | 420K | 20 Dec 2025 | Direct | F2, F7 |
| transaction | CIEN | Common Stock | Tax liability | -$2.89M | -12.5K | -2.99% | $230.34 | 407K | 20 Dec 2025 | Direct | F2, F7 |
| transaction | CIEN | Common Stock | Tax liability | -$2.06M | -8.93K | -2.19% | $230.34 | 398K | 20 Dec 2025 | Direct | F2, F8 |
| Id | Content |
|---|---|
| F1 | Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/13/2022. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/15/2022. |
| F2 | Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs). |
| F3 | Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023. |
| F4 | Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024. |
| F5 | Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a restricted stock unit (RSU) award agreement dated 12/14/2021. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/16/2021. |
| F6 | Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a market stock unit (MSU) award agreement dated 12/13/2022. The earning of the MSU was previously reported on Table I of the reporting person's Form 4 filed on 12/18/2025. |
| F7 | Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a performance stock unit (PSU) award agreement dated 12/17/2024. The earning of the PSU was previously reported on Table I of the reporting person's Form 4 filed on 12/18/2025. |
| F8 | Represents shares withheld to cover payment of the tax liabilities of the reporting person related to a performance stock unit (PSU) award agreement dated 12/12/2023. The earning of the PSU was previously reported on Table I of the reporting person's Form 4 filed on 12/19/2024. |