Ciena 4: FITT LAWTON W bought 605 shares of Common Stock at $N/A on… (Mar 30, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-03-26 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CIENA CORP (CIEN) CIK: 0000936395 --- Reporting Owner --- Name: FITT LAWTON W CIK: 0001103725 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-03-26 | Code: A (Grant or award) Shares: +605 | Price: $0.00 Shares Owned After: 129,776 | Ownership: D (Direct) Footnotes: [F1] Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant. [F2] Shares reported include unvested Restricted Stock Units (RSUs). [Transaction #2] Security: Common Stock Date: 2026-03-26 | Code: A (Grant or award) Shares: +257 | Price: $0.00 Shares Owned After: 130,033 | Ownership: D (Direct) Footnotes: [F1] Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant. [F2] Shares reported include unvested Restricted Stock Units (RSUs). --- Footnotes (Complete Index) --- F1: Restricted stock units (RSUs) vest in full on the first anniversary of the date of the grant. F2: Shares reported include unvested Restricted Stock Units (RSUs). --- Signature --- /s/ By: Michelle Rankin For: Lawton W Fitt (2026-03-30)