Form 4 Filing for CIENA CORP

Joseph Cumello, EVP & General Mgr. of CIENA CORP, reported a disposition of 1616 shares of Common Stock on September 20, 2026. The transactions, coded as "F", occurred at a price of $348.8 per share. These dispositions were to cover tax liabilities related to various restricted stock unit (RSU) awards granted on different dates between December 2022 and December 2025. Following these transactions, Mr. Cumello directly owns 41,156 shares, which include unvested RSUs and PSUs. The filing also notes previous reporting of these RSU acquisitions in prior Form 3 and Form 4 filings.