CIENA CORP 4

Dino DiPerna (SVP Global R&D) sold 782 shares of Ciena Corp common stock in two Rule 10b5-1 plan transactions on 2026-07-15.

On July 15, 2026, Dino DiPerna, SVP Global R&D of Ciena Corp, executed two small open-market sales of common stock under a pre-arranged Rule 10b5-1 trading plan, selling a total of 782 shares at approximately $449.15 per share for aggregate proceeds of about $351,295. Following these transactions, his directly held position decreased modestly from 40,015 to 39,624 shares, with the remaining holdings—stated to include unvested RSUs and PSUs—still representing a multi‑million dollar stake based on current market prices. The activity appears to be a routine, plan-based diversification rather than a significant reduction in ownership.

Filing Facts

CIK

936395

Ticker

CIEN

Form

4

Source Type

sec

Accession

0001998460-26-000009

Alert Tier

6