Ciena Corporation, as Issuer, and The Bank of New York Mellon Trust Company, N.A., as Trustee INDENTURE Dated as of August 2, 2017 3.75% Convertible Senior Notes due 2018Ciena Corp • August 2nd, 2017 • Telephone & telegraph apparatus • New York
Company FiledAugust 2nd, 2017 Industry JurisdictionINDENTURE, dated as of August 2, 2017, between Ciena Corporation, a corporation incorporated under the laws of the State of Delaware (the “Company”), as issuer and The Bank of New York Mellon Trust Company, N.A., a national banking association (the “Trustee”), as trustee.