| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Cumello Joseph | SVP, General Mgr. Blue Planet | C/O CIENA CORPORATION, 7035 RIDGE RD., HANOVER | By: Michelle Rankin For: Joseph Cumello | 22 Dec 2025 | 0001963638 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CIEN | Common Stock | Tax liability | $101,580 | -441 | -0.6% | $230.34 | 72,501 | 20 Dec 2025 | Direct | F1, F2 |
| transaction | CIEN | Common Stock | Tax liability | $41,922 | -182 | -0.25% | $230.34 | 72,319 | 20 Dec 2025 | Direct | F2, F3 |
| transaction | CIEN | Common Stock | Tax liability | $134,058 | -582 | -0.8% | $230.34 | 71,737 | 20 Dec 2025 | Direct | F2, F4 |
| transaction | CIEN | Common Stock | Tax liability | $76,473 | -332 | -0.46% | $230.34 | 71,405 | 20 Dec 2025 | Direct | F2, F5 |
| transaction | CIEN | Common Stock | Tax liability | $61,961 | -269 | -0.38% | $230.34 | 71,136 | 20 Dec 2025 | Direct | F2, F6 |
| transaction | CIEN | Common Stock | Tax liability | $1,300,039 | -5,644 | -7.9% | $230.34 | 65,492 | 20 Dec 2025 | Direct | F2, F7 |
| transaction | CIEN | Common Stock | Tax liability | $318,330 | -1,382 | -2.1% | $230.34 | 64,110 | 20 Dec 2025 | Direct | F2, F8 |
| transaction | CIEN | Common Stock | Tax liability | $366,010 | -1,589 | -2.5% | $230.34 | 62,521 | 20 Dec 2025 | Direct | F2, F8 |
| transaction | CIEN | Common Stock | Tax liability | $257,290 | -1,117 | -1.8% | $230.34 | 61,404 | 20 Dec 2025 | Direct | F2, F9 |
| 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 3 filed on 2/3/2023. |
| 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 2/1/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 2/3/2023. |
| 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 12/12/2023. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/14/2023. |
| 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 12/17/2024. Acquisition of the RSU was previously reported in Table I of the reporting person's Form 4 filed on 12/19/2024. |
| F6 | 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 3 filed on 2/3/2023. |
| F7 | 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. |
| 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 12/17/2024. The earning of the PSU was previously reported on Table I of the reporting person's Form 4 filed on 12/18/2025. |
| F9 | 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. |