4Filing Date: Mar 31, 2026

Ciena

Statement of Changes in Beneficial Ownership

View SEC Filing
ACC: 0001963638-26-000005
Total Value$700.0K
Trades1
Insiders1

Transaction Details

Cumello Joseph
SVP, General Mgr. Blue Planet·Direct
Sell · Dispose
Common Stock
Shares-1.77K
Price$394.82
Total Value$700.0K
Shares Owned After46.17K
Transaction DateMar 27, 2026
10b5-1
Footnotes ▸

Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/13/2025. | Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).

Post-Transaction Holdings

Cumello Joseph · SVP, General Mgr. Blue Planet
SecuritySharesChange
Common Stock46.17K-1.77K (-3.70%)
Original SEC Filing Textexpand_more
=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-03-27 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: CIENA CORP (CIEN) CIK: 0000936395 --- Reporting Owner --- Name: Cumello Joseph CIK: 0001963638 Role: Officer (SVP, General Mgr. Blue Planet) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-03-27 | Code: S (Open market sale) Shares: -1,773 | Price: $394.82 Total Value: $700,015.86 Shares Owned After: 46,175 | Ownership: D (Direct) Footnotes: [F1] Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/13/2025. [F2] Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs). --- Footnotes (Complete Index) --- F1: Sales were effected pursuant to Rule 10b5-1 trading plan dated 10/13/2025. F2: Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs). --- Signature --- /s/ By: Michelle Rankin For: JOSEPH CUMELLO (2026-03-30)

keid analysis is for reference only and does not constitute investment advice.