| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| NEVENS THOMAS MICHAEL | Director | C/O CIENA CORPORATION, 7035 RIDGE RD., HANOVER | By: Michelle Rankin For: T. Michael Nevens | 15 Dec 2025 | 0001251445 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CIEN | Common Stock | Sale | $1,921,742 | -8,554 | -48% | $224.66 | 9,422 | 15 Dec 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Shares reported include unvested Restricted Stock Units (RSUs). |