News & Events

Results of Operations and Financial Condition. On March 5, 2026, Ciena Corporation ("Ciena") issued a press release announcing its financial results for its fiscal first quarter ended January 31, 2026. The text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (this "Report"). As discussed in the press release, Ciena will be hosting an investor call to discuss its results of operations for its fiscal first quarter ended January 31, 2026. In conjunction with…

DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY ARRANGEMENTS OF CERTAIN OFFICERS Effective November 30, 2025, as part of Ciena Corporation’s (“Ciena’s”) standard three-year review and renewal of its previously disclosed change in control severance agreements, Ciena entered into change in control severance agreements (the “Change in Control Severance Agreements”) in a revised form with each of its executive officers, including am…

OTHER EVENTS On October 7, 2025, Ciena Corporation completed its acquisition of privately-held Nubis Communications, Inc., which specializes in high-performance, ultra-compact, low-power optical and electrical interconnects tailored to support artificial intelligence (AI) workloads. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Ciena Corporation…

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On December 11, 2024, Patrick H. Nettles, Ph.D., Executive Chair of Ciena’s Board of Directors (the “Board”), notified Ciena of his planned retirement and that he would not stand for re-election as a director at the end of his term at Ciena's 2025 Annual Meeting of Stockholders (the "Annual Meeting"). In connection with this decision, Dr. Nettles s…

Results of Operations and Financial Condition. On December 12, 2024, Ciena Corporation ("Ciena") issued a press release announcing its financial results for its fiscal fourth quarter ended November 2, 2024. The text of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (this "Report"). As discussed in the press release, Ciena will be hosting an investor call to discuss its results of operations for its fiscal fourth quarter ended November 2, 2024. In conjunction…

DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY ARRANGEMENTS OF CERTAIN OFFICERS On April 22, 2024, Andrew C. Petrik, (age 60), Vice President, Principal Accounting Officer and Controller of Ciena Corporation (the “Company”), notified the Company of his decision to retire in twelve months, effective April 25, 2025 (the “Effective Date”), following a career of dedicated and distinguished service with the Company since 1996. Mr. P…

DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY ARRANGEMENTS OF CERTAIN OFFICERS (b) On January 24, 2023, Ciena Corporation (“Ciena”) announced the appointment of David M. Rothenstein as Senior Vice President, Chief Strategy Officer and Corporate Secretary, effective as of January 30, 2023. Mr. Rothenstein had been performing this role on an acting basis since March 2022. In his new role, Mr. Rothenstein will lead Ciena’s strate…

RESULTS OF OPERATIONS AND FINANCIAL CONDITION On September 1, 2022, Ciena Corporation ("Ciena") issued a press release announcing its financial results for its third fiscal quarter ended July 30, 2022. The text of the press release is furnished as Exhibit 99.1 to this report. As discussed in this press release, Ciena will be hosting an investor call to discuss its results of operations for its third fiscal quarter ended July 30, 2022. In conjunction with the issuance of this press release, Ci…

OTHER EVENTS On October 31, 2021, Ciena Corporation completed its acquisition of AT&T’s Vyatta virtual routing and switching technology . SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Ciena Corporation Date: November 3, 2021 By: /s/ David M. Rothenstein David M. Rothenstein Senior Vice President, General Counsel and Secretary