Dino DiPerna's Planned Sale of Ciena Corporation Common Stock

Dino DiPerna, an officer of Ciena Corporation, has filed a Form 144 notice indicating his intent to sell 734 shares of Ciena Corporation's common stock. The shares were acquired on September 20, 2025, as restricted stock. The planned sale is expected to occur on or around October 15, 2025, with an aggregate market value of approximately $124,310.24. The sale will be facilitated by Morgan Stanley Smith Barney LLC Executive Financial Services. DiPerna has reported no sales of securities in the past three months.