CIENA CORP — Director's Dealing 2026

Feb 19, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CIENA CORP (CIEN)
CIK: 0000936395
Period of Report: 2026-02-17

Reporting Person: Rothenstein David M (SVP and Chief Strategy Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-17	Common Stock	S	2500	$300.1992	Disposed	199694	Direct

Footnotes

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

F2: Reflects the weighted average sales price with transactions in a range of sales from $288.71 to $306.54. Upon request by the SEC, full information regarding the number of shares sold at each separate sales price will be provided.

F3: Shares reported include unvested Restricted Stock Units (RSUs) and Performance Stock Units (PSUs).