CIEN · Ciena Corp

Demos and speaking sessions highlight how Ciena solutions improve network performance, scalability, and readiness for AI workloads Mar. 10, 2026- At OFC 2026 , taking place March 15-19 in Los Angeles , Ciena ’s (NYSE: CIEN) booth (#1927) will feature innovations that redefine what’s possible in modern networking across data center networks, quantum-safe communications, network automation, and AI operations (AIOps). Through technology demonstrations and speaking sessions, OFC attendees will learn how Ciena helps operators elevate network performance through cutting-edge innovations, including 1.6T coherent optics and hyper-rail photonics. Ciena will also highlight how the company is creating scalable data center architectures for scale up, scale out, and scale across—using next-gen optical and electrical interconnects. Demonstrations Optical: Programmable Photonics – Highlighting 6500 Reconfigurable Line System (RLS) configurations that power scale across applications and extend

New developments in hyper-rail photonics, 1600ZR/ZR+ pluggables, full-spectrum coherent transponders and network automation Recent introduction of Vesta 200 6.4T CPX optical engine from Nubis acquisition Continuous innovation in highly dense, high-capacity optical solutions address AI demands of hyperscale and service provider networks Mar. 10, 2026- Ciena (NYSE: CIEN) continues to strengthen its leadership in shaping the future of networking with new innovations designed to meet surging AI-driven bandwidth demands. Including recently acquired co-packaged/near-packaged optics and electrical redriver technologies from Nubis Communications , Ciena’s latest solutions support growing AI workload demands by significantly increasing network capacity and density. “Ciena is building on our established leadership in high-capacity, low-latency optical networking with innovations that address the AI-driven transformation of networks,” said Dino DiPerna , Senior Vice President of Global Research

Summary Fiscal first quarter 2026 revenue was $1.43 billion , up 33% year-over-year Fiscal first quarter 2026 adjusted Earnings Per Share (EPS) was $1.35 , an increase of 111% compared to fiscal first quarter 2025 Providing revenue guidance of $1.5 billion plus or minus $50 million for fiscal second quarter 2026 Raising revenue guidance range for fiscal year 2026 to $5.9 billion to $6.3 billion , a 28% increase year-over-year at the midpoint Mar. 5, 2026- Ciena ® Corporation (NYSE: CIEN) today announced financial results for its fiscal first quarter ended January 31, 2026 . "We delivered a very strong fiscal first quarter, driven by focused execution and unprecedented, broad-based demand as we enable customers to monetize their AI investments,” said Gary Smith , President and Chief Executive Officer of Ciena. "With industry‑leading technology and deep customer relationships, we are well positioned to meet multi‑year demand as AI‑driven networking continues to scale. We are investing

Vesta 200 6.4T CPX removes key barriers to co-packaged optics (CPO) adoption 200G/lane CPO ideal for leading-edge 100 and next-generation 200 Tb/s ASICs Single-wavelength solution natively enables full fan-out AI cluster interconnect networking Feb. 25, 2026- Building on its long history as the leader in high-speed connectivity – and marking the first product introduction following its acquisition of Nubis Communications – Ciena (NYSE: CIEN) is unveiling Vesta 200 6.4T CPX , the industry’s highest-density, lowest-power pluggable CPO solution. Designed to reduce power consumption by up to 70%, the solution helps hyperscalers, cloud providers, and data center operators evolve their architectures to reliably address AI workloads in both scale-out networks as well as next generation scale-up networks. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260225663726/en/ Vesta 200 6.4T CPX Pluggable Co-packaged Optical Engine

Blue Planet AI agents to help automate Lumen’s network operations Initial use cases include device model generation and digital network twin applications AI agents support Lumen’s success in building an AI-ready network Feb. 19, 2026- Blue Planet , a division of Ciena (NYSE: CIEN), today announced that Lumen Technologies (NYSE: LUMN) is adopting the company’s AI agents across its network operations to help enhance efficiency and deliver exceptional customer experiences. As part of its strategy to build the trusted network for AI, Lumen will use Blue Planet AI Studio , an operations support system (OSS)-native platform, to build, manage, and run AI agents across multiple network domains to drive faster, context-aware outcomes. “Across our enterprise operations, we’re using AI to digitize and automate core processes, eliminate legacy complexity, boost agility and speed, and free our teams to focus on higher‑value innovation that improves the customer experience,” said Kye Prigg , Chief

Feb. 12, 2026- Ciena ® Corporation (NYSE: CIEN), the global leader in high-speed connectivity, announced today that proxy materials are now available for its 2026 Annual Meeting of Stockholders to be held Thursday, March 26, 2026 at 3:00 p.m. Eastern Time . Event: 2026 Annual Meeting of Stockholders Date: Thursday, March 26, 2026 , 3:00 p.m. ET Listen Live: An audio webcast of the meeting, accompanied by a slide presentation, will be posted at the time of the event. Stockholders of record will be able to ask questions through the virtual platform. Registration and all materials can be found at www.virtualshareholdermeeting.com/CIEN2026 Stockholder Materials: Proxy materials for the 2026 Annual Meeting are now available on the Ciena Investor Relations website at http://investor.ciena.com. Online Annual Report: The 2025 Annual Report is now available and can be downloaded here or at http://investor.ciena.com. The interactive version of the 2025 Annual Report is also available and can be

Feb. 5, 2026- Ciena ® Corporation (NYSE: CIEN), the global leader in high-speed connectivity, expects to announce its fiscal first quarter financial results on Thursday, March 5, 2026 before the open of the financial markets. The press release will be available on Ciena’s website at www.ciena.com . In conjunction with the announcement, Ciena will post an additional set of supporting materials to the Quarterly Results page of the Investor Relations section of its website. Ciena’s management will then host a live audio web broadcast beginning at 8:30 a.m. Eastern accessible via www.ciena.com . Rebroadcast Information For those listeners unable to participate in the live web broadcast, an archived version of the conference call will be available shortly following the conclusion of the live call in the Events & Presentations section of the Investor Relations section of Ciena’s website. About Ciena Ciena is the global leader in high-speed connectivity. We build the world’s most

Network upgrade drives 5G readiness and integration into European connectivity routes Jan. 29, 2026- Telekom Srbija Group , one of the largest and fastest-growing telecommunications operators in Southeast Europe and a digital transformation leader in the Western Balkans, and its subsidiary Mtel are utilizing Ciena ’s (NYSE: CIEN) coherent optical solutions to enhance network connectivity between Serbia and Bosnia-Herzegovina . This initiative will support regional growth, future-proof Telekom Srbija’s infrastructure, and position Serbia and Bosnia-Herzegovina as vital connectivity hubs within Europe . Ciena’s 6500 Packet-Optical Platform equipped with WaveLogic 5 Extreme coherent transceivers will allow Telekom Srbija to deliver 800 Gb/s across a new 150-kilometer fiber route between Serbia and Bosnia-Herzegovina . The high-capacity, low-latency network will provide scalable, highly resilient network performance and accommodate future capacity demands driven by hyperscaler traffic and

Trans Pacific Networks (TPN) operates fiber pairs on the Echo and Tabua cable systems, Echo is the world's longest subsea digital line segment at over 16,000 km Ciena’s WaveLogic 6 Extreme and Reconfigurable Line System deliver power- and space-efficient high-speed connectivity on routes connecting U.S. to Indonesia and Singapore Deployment drives economic growth by providing reliable, high-speed internet access Jan. 27, 2026- Trans Pacific Networks (TPN) is deploying Ciena's (NYSE: CIEN)’s industry-leading optical solutions to provide high-speed, low-latency digital connectivity across the Asia-Pacific region . With Ciena’s technology powering its Echo and Tabua subsea cables, TPN will be able to deliver terabit wavelengths, maximizing the capacity and efficiency of these critical assets. Pioneer Consulting will oversee route engineering, technical quality assurance, and end-to-end project execution. This press release features multimedia. View the full release here:

Jan. 6, 2026- Ciena ® Corporation (NYSE: CIEN) today announced its expected participation in the following upcoming event with the financial community. This event will be webcast live and recorded. Archived versions will be made available approximately 24 hours following the conclusion of the live event in the Events & Presentations page of the Investors section of Ciena’s website. 28th Annual Needham Growth Conference Tuesday, January 13, 2026 @ 3:45 p.m. Eastern Time Speaker: David Rothenstein , Senior Vice President, Chief Strategy Officer About Ciena Ciena (NYSE: CIEN) is a global leader in high-speed connectivity. We build the world’s most adaptive networks to support exponential growth in bandwidth demand. By harnessing the power of our networking systems, interconnects, automation software, and services, Ciena revolutionizes data transmission and network management. With unparalleled expertise and innovation, we empower our customers, partners, and communities to