Form 4 Filing for CIENA CORP - Officer Share Transaction

This filing details a transaction by Marc D. Graff, SVP & Chief Financial Officer of CIENA CORP, on June 20, 2026. Mr. Graff disposed of 199 shares of Common Stock, acquired under a restricted stock unit (RSU) award agreement dated December 16, 2025. The shares were withheld to cover tax liabilities associated with the RSU award. The transaction price was $428.22 per share. Following this transaction, Mr. Graff owns 127,207 shares, including unvested RSUs. This acquisition of RSUs was previously reported on December 18, 2025.