CIENA CORP — Director's Dealing 2026

Jan 16, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CIENA CORP (CIEN)
CIK: 0000936395
Period of Report: 2026-01-15

Reporting Person: DiPerna Dino (SVP Global R&D)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-01-15	Common Stock	S	2527	$246.23	Disposed	49868	Direct
2026-01-15	Common Stock	S	2527	$246.23	Disposed	47341	Direct

Footnotes

F1: Sales were effected pursuant to Rule 10b5-1 trading plan dated 7/11/2025.

F2: Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).