Together, we build tomorrow 2022 Annual Report 1 As a of Ciena continue to create collaborative force , the people , flexible networks that , and open sustainable better serve all users—today and into the future. 2 Together, where the spirit of innovation and humanity meet, we build the most adaptive networks in the industry, enabling our customers to anticipate and meet ever-increasing digital demands. By design, we are resilient to our core. While recent years have been hard on the entire world, we’ve worked tirelessly to invest in transformative solutions and to support our customers, partners, and communities shape the future we all share. 1 At a Glance 1,600+ Customers 85% of the world’s service providers 8,000+ Employees 2,000+ Patents Ciena Is a Leader and a Disruptor OPTICAL INNOVATION NEXT-GENERATION METRO AND EDGE FOCUS BLUE PLANET INVENTORY Ciena’s WaveLogic 5 Extreme 800G solution started shipping more than two years ago and now includes capabilities such as multiple bauds and wire-speed encryption. Ciena is now also shipping coherent pluggables, including WaveLogic 5 Nano. Additionally, we have launched two new optical line systems: 1) RLS is the first modern, disaggregated line system that simplifies wavelength turn-up, speeds restoration, and enables simple expansion into the L-band; and 2) Coherent ELS, a coherent-optimized, hardened open line system designed to meet next-generation photonic requirements at the network edge. With service providers globally accelerating investments to modernize their networks and improve connectivity at the network edge, one of Ciena’s strategic priorities is to address customers’ next-generation metro and edge strategies. A particularly important focus area is Fiber Broadband Access, including residential broadband, enterprise business services and fixed- wireless access, which represents a significant addressable market for Ciena. Complementing our organic investments are the recent acquisitions of Vyatta's technology, Benu Networks and Tibit Communications. These acquisitions help expand our existing portfolio and strengthen the expertise within our Routing and Switching R&D teams. In today’s evolving environment, customers are seeking to deliver new, dynamic services such as 5G network slicing and SD-WAN. However, the data needed to offer these services is typically siloed in legacy inventory and Operational Support Systems (OSSs) with proprietary interfaces, making the data complex to correlate and understand. Blue Planet Inventory uses federation technology to unify inventory data from multiple existing OSSs, Network Management Systems, and other sources to create a single ‘source of truth’ that reflects the current state of the network. 2 Gary B. Smith President and Chief Executive Officer To our Shareholders Our long-standing market leadership has always been defined by our innovation leadership, financial strength, and the expertise and dedication of our people. Our focus on our strategic priorities has continued even during the past few years when faced with challenging market conditions. These priorities evolve as our customers’ needs change, but they remain substantially unchanged. We will strengthen our competitive advantage in our core optical business, invest in next-generation metro and edge applications, and expand our software automation capabilities. This strategy delivers a leading technology portfolio that, when combined with our strong customer engagement and go-to-market approach, is designed to leverage industry demand drivers and expand our addressable market, which we expect to drive profitable growth over the next several years. In fiscal 2022, we experienced record demand from customers, growing our order volumes by 26% annually and ending the year with a backlog of greater than $4 billion. At the same time, the year was marked by unprecedented challenges and significant volatility with respect to the global supply of components for our products as well as logistics lanes. Amidst these dynamics and the related impacts on our business, we reported revenue of $3.63 billion. While supply dynamics remain unpredictable, as we exited fiscal 2022 we saw signs of gradual improvement, and we started to benefit from several mitigation steps that we implemented. Looking forward, the continued gradual supply improvement combined with our significant backlog and expanding market initiatives sets us up well for outsized growth in fiscal 2023 and gives us confidence in our long-term growth. Leveraging industry demand drivers Shifts in business and consumer behaviors in recent years have accelerated positive industry trends that are influencing customer priorities and driving long-term opportunities for our business. Concurrent with these trends are multibillion-dollar public investment initiatives as well as geopolitical dynamics that represent incremental opportunities over the next few years. Underpinning our customers’ network investments is the growing demand for bandwidth, which continues to increase annually at approximately 30% according to a recent study from TeleGeography, a global telecommunications market research and consulting firm. The forces behind this unrelenting need for capacity include cloud adoption, rollouts of 5G infrastructure and capabilities, digital transformation strategies, residential broadband expansion, and more. Our portfolio across coherent optics, routing and switching technologies, and automation software addresses the needs at the heart of these network priorities and, as a result, we are poised to capitalize on these opportunities and take market share. 3 Operators around the world are looking to address the next generation of network use cases. The ubiquitous need to enable emerging applications is driving substantial investment where Ciena solutions offer significant competitive advantage. These trends are illustrated in a global study commissioned by Ciena which revealed that over 75% of business professionals are ready to participate in more immersive experiences, like virtual environments, versus existing tools. The study also confirmed that network reliability is a key concern in making this possible. As a result, service providers know the demand is real and are investing in faster, smarter networks that are closer to the user. This requires a robust underlying architecture, powered by next- generation technologies that support the ultra-low latency and high bandwidth. We have demonstrated an ability to deliver networks that can adapt to these ever-changing demands. In optical, WaveLogic 5 Extreme continues to lead the market with more than 200 customers and greater than 50,000 modems shipped. This first- to-market, fifth-generation coherent optical solution powers 100G to 800G solutions that deliver scalability, intelligence and programmability — crucial components to delivering the services that end-customers increasingly demand. In routing and switching, where we continue to invest in next- gen metro and edge opportunities, we reached a milestone of more than 200 Adaptive IP customers, fueled by momentum in coherent routing, metro aggregation, passive optical networking (PON), and high-speed business services. In recent quarters, we acquired Vyatta for its virtual routing and switching technology, Benu Networks for its subscriber management solutions, and Tibit Communications for its next-generation PON technologies. Coupled with our organic portfolio enhancements, these additions enable us to address a broader range of broadband access use cases to pursue a larger set of opportunities in this growing market segment. Our software portfolio investments have positioned Blue Planet automation software and our Manage, Control and Plan (MCP) domain controller as leading-edge solutions. In Blue Planet, we have focused on building a software and services portfolio to address digital transformation, specifically around transitioning legacy networks into “service-ready” networks for cloud- based services. With MCP, we are reinventing how networks are managed through the combination of software and services that enables customers to deliver services with the best user experience. Adding value to our hardware and software innovations is an expanded set of services offerings that include network migration and optimization as well as multi-vendor network integration. With this portfolio, we gain unique insights into our customers’ networks and business challenges, allowing us to provide the solutions they need to meet their desired business outcomes. The alignment of our leading technology and forward innovation agenda with the drivers of network investment over the next several years gives us confidence in our outlook for profitable growth. Revenue (in billions) $3.09 $3.57 $3.53 $3.62 $3.63 18 19 20 21 22 Adjusted Gross Profit1 (in billions) $1.56 $1.68 $1.74 $1.58 $1.33 18 19 20 21 22 Adjusted Income from Operations1 (in millions) $620 $607 $470 $337 $407 18 19 20 21 22 Adjusted EPS1 (in billions) $2.95 $2.91 $2.11 $1.39 $1.90 1 A reconciliation of these non-GAAP measures to our GAAP results is included 18 19 20 21 22 in the press release for the relative period. 4 Broadening our relationships As we continue making these investments to extend our leadership and expand our addressable market, we seek to grow our international business, broaden our engagements with existing customers, and expand our webscale footprint. Ciena is a strong, recognized market leader in North America and India. We believe that we have a significant opportunity to expand our presence in other parts of the globe where demand and network investment are on the rise. Moreover, we are well- positioned to take share in these international markets as network operators assess the risk associated with smaller competitors; seek to diversify their supply chains beyond larger, traditional vendors; and respond to geopolitical concerns regarding China- based competitors. In fact, we have begun to benefit from these dynamics, which represent significant opportunity to increase in our addressable market over time. We also believe that our long and successful heritage with service providers and cable operators, particularly in the optical domain, allows us to continue broadening customer engagements and address additional network investments, including in routing and switching and software automation. Our next-generation metro and edge initiatives alone are expected to expand that portion of our addressable market from $6 billion to at least $14 billion over the next several years. Webscale customers are at the center of cloud adoption, which is still only in its early stages and where we expect cloud market revenue to experience double-digit percentage growth as Edge Cloud investment is also expected to grow strongly2 over the next few years. We currently have leading market share in this customer segment, with webscale providers making up four of our top 10 customers and representing well above $1 billion in orders in fiscal year 2022 for data center interconnect applications with our optical platforms. Looking ahead, we anticipate further growth in this space with additional applications both inside and outside the data center, including Automated Intelligence, Machine Learning and Edge Compute. This dynamic, in part, informs our forward investments as we build the sixth generation of our WaveLogic coherent optics. At the same time, we continue to invest in the environmental performance of our own business. We are on track to reach our carbon neutrality goal by 2024 by reducing energy use and emissions in our operations, combined with our investment in renewable energy. As a next step, we have submitted new environmental goals to the Science Based Target Initiative for approval, which will not only positively impact our direct operations, but also inform how we innovate to become even greater enablers of our customers’ sustainability goals. Further, a source of pride in recent years has been the incredible passion shown by our people to make a difference in their communities. In 2022, Ciena teams around the world raised more than $3 million and volunteered 36,000+ hours. We also advanced our Digital Inclusion program, expanding the set of organizations we support that bring digital literacy, access, and enabling tools to underserved students. Emerging with strength We remain inspired by the relentless dedication of the Ciena team. Our employee engagement and retention rates remain above industry benchmark levels, even in the face of continued macroeconomic pressures and global supply chain challenges. This is a direct result of continued investment in our people through providing competitive benefits and engaging development programs, growing a strong and diverse workforce, and living up to our promise to foster an environment characterized by belonging, vibrancy, and happiness. We take seriously our role as strategic suppliers to the networks that connect the world, and we are committed to delivering on that promise in a way that prioritizes people and our planet. In doing so, we will continue to invest across our business, backed by our strong market and financial position, and are poised for higher growth to remain a leader that takes share and grows faster than the market. Putting sustainability at the forefront Everything we do for our stakeholders is shaped by our commitment to innovate responsibly, make a meaningful impact in our communities, and create a culture where we all belong. GARY B. SMITH President and Chief Executive Officer Our customers are acutely focused on sustainability matters, setting ambitious climate change goals to reduce emissions, energy use and waste in their networks and operations. We have a critical part to play with them on this journey. As we continue advancing our technology, we are reducing the power and space required to operate our equipment, and our services portfolio helps customers get more capacity out of their networks while reducing electronic waste. 2 Technology Business Research, Inc. (TBR), April 2022 5 we Together, strengthen connections With once-in-a-generation broadband investments and the promise of a digital future for all, now is the time to rethink networks. These networks must evolve to meet surging customer demand, enable the next wave of applications, and bring digital access to more people around the globe. CONNECTING COMMUNITIES ACROSS THE GLOBE Economic prosperity and the ability to work, learn, and play have never been more dependent on reliable, affordable, fast broadband connectivity at home. Ciena is collaborating with service providers worldwide to bridge the digital divide. CONNECTION WITHOUT COMPROMISE It’s time to leave behind the closed approaches of the past. Ciena provides an open, modular, and scalable solution so operators don’t have to compromise when it comes to building broadband networks. Designed to ignite a digital future for all, our solutions are field-proven across industries to deliver sustainable networks that continually adapt to business needs. Ciena’s broadband access customers benefit from our expertise in planning, design, deployment, management, maintenance, and support for their networks. Ciena’s solutions go beyond network infrastructure by offering network operators — including service providers, utility co-ops, municipalities and cable operators — a complete approach to accelerating their broadband access network modernization journey from planning to marketing. Ciena’s solutions are open by design — enabling network operators to create the best possible network infrastructure by choosing preferred vendors that complement Ciena’s network elements. By not limiting their solution to a specific vendor’s innovation cycle, operators are able to protect their competitive edge. This also allows operators to maintain better control over their procurement processes to minimize, and outright eliminate, vendor lock-in for a broader and more secure supply chain. 6 58% 2020–2026 CAGR for 10G and 25G PON market 63% less power1 67% smaller footprint1 1 Ciena's converged access with XGS-PON and routing in a single platform versus traditional pure PON chassis-based solutions 7 we Together, pioneer innovation From our founding, Ciena has been a pioneer in the networking industry. Coupled with innovation, our growth and success have been built on our ability to partner with customers — delivering the next-generation solutions they require to build and evolve their networks. Driven by nearly 3,000 R&D specialists who have secured more than 2,000 patents, for decades we have been first to market with industry-leading optical technologies. As we continue to build upon our existing strategic investments and expand our total addressable market (TAM), our innovation leadership will only strengthen. FOUNDATIONAL OPTICAL LEADERSHIP Ciena has been first to market with 40G, 100G, 400G and 800G optical technology — and we are not stopping there. In addition, over the years, our unmatched investment capacity enabled us to be first to deliver an OTN control plane on an optical switch, design an intelligent optical core switch and develop a packet-optical convergence platform. As a result, we have proudly stood out as #1 or #2 across our Optical markets1 and continue to do so today. NEXT-GENERATION METRO AND EDGE — EXPANDING OUR TAM Ciena provides a holistic view of the key requirements for next-generation metro and edge networks. Our vision focuses on making these networks more open, automated, and simple. From our origins and leadership in Mobile Backhaul and Ethernet Business Services, we are expanding our TAM by expanding our solution set across Broadband Access, Cloud Connectivity, xHaul Solutions, Converged IP/Optical Infrastructures, Software Defined Edge and Ethernet Data Services. As part of this strategy, we acquired, Vyatta’s technology, Benu Networks, and Tibit Communications, which complement our organic investments in Fiber Broadband Access and will enhance our ability to pursue a larger set of opportunities in this market segment. 1 CY3Q’22 reports from Omdia, Cignal AI and Dell’Oro Group 88 8 Routing and Switching platforms launched 50K+ WaveLogic 5 Extreme modems shipped 2022 Winner Automation Award, Blue Planet2 2 Leading Solution for Network Automation / Autonomous Networks, FutureNet World Awards 9 9 we foster Together, communication A diverse set of applications including mobile broadband, enterprise cloud, SD-WAN connectivity, and high-resolution media streaming requires high-capacity connectivity at all times across complex networks. Ciena’s decades of engineering and innovation have improved communications speed, resiliency, and reach. All of this happens transparently to the end-consumer. SIMPLIFYING NETWORK MANAGEMENT With the advent of software-defined networking (SDN), it became possible to centralize, simplify and accelerate traditional network management at each layer and introduce automation to eliminate manual, repetitive tasks. With today’s continued technology advancements in software control and user experience design, there is an opportunity to further accelerate and improve network operations. At Ciena, our Manage, Control and Plan (MCP) domain controller provides a unified view that enables optimized multi-layer lifecycle network operations — effectively holding the multiple network layers in place to best support over-the-top applications. ENABLING END-TO-END AUTOMATION Ciena’s MCP includes integrated real-time analytics, which enable multi-layer coordination of traffic flows and enhanced network assurance. MCP’s multi-layer planning capabilities help optimize asset utilization to deliver increased network resiliency and performance. While visual tools are essential to clearly show multi-layer dependencies, open APIs enable end-to-end automation of repeatable tasks. Ciena provides this intelligent network control through our suite of MCP Applications, an encompassing toolset for complete multi-layer lifecycle operations. We support our customers by maintaining a solid multi-layer network foundation to achieve their ultimate goal — delivering exceptional performance for end-consumer applications. 1010 >50% of network operators list network automation as a top three priority2 7.5M cell site routers worldwide1 9.9B connected devices globally1 1 Heavy Reading | Simplifying Multi-Layer Network Control, October 2022 2 Analysys Mason, Analyst Insights: Multi-layer SDN with enriched analytics helps operators improve customer experience, September 2022 1111 Together, we empower others Our deep humanity propels us to innovate differently and do good in the world. We drive meaningful social impact in our communities, promote environmental stewardship and nurture an inclusive culture, where everyone is empowered, makes a difference and feels a sense of belonging. In fiscal 2022, we advanced our sustainability efforts by further integrating environmental considerations into our products and operations, invested in our people and their wellbeing, and engaged in the communities where we live and work. TAKING ACTION ON CLIMATE CHANGE We are progressing toward our goal of being carbon neutral for operational emissions by 2024, through investments in renewable energy, operational efficiencies, and reductions in travel emissions. Furthermore, our innovations help customers reduce emissions from their networks, with each product generation delivering increased capacity with less energy and space required. In 2023, we will embark on the next step in our sustainability journey with the submission of new environmental goals to the Science Based Target Initiative. MAKING A MEANINGFUL IMPACT IN OUR COMMUNITIES In 2022, our people demonstrated their passion for giving back, volunteering more than 36,000 hours for causes that matter most to them. We also invested in initiatives to bridge the digital divide, with new community partnerships in Asia-Pacific, Europe, North America and South America, and conducted our first Ciena Solutions Challenge, a global competition that engages students to address sustainability issues through computational thinking. Our Digital Inclusion program is a five-year $10 million dollar commitment to help unlock opportunities for underserved youth globally through digital tools, access, and learning. LIVING UP TO OUR PEOPLE PROMISE Our strong culture is enhanced by our People Promise, which commits to providing a work experience characterized by belonging, vibrancy and happiness. Throughout 2022, we continued to invest in people through our development and wellbeing programs, and placed increased emphasis on diversity, inclusion, and belonging through our Conscious Inclusion workshops and the active engagement of our employee resource groups. 12 70% Reduction in air travel emissions from 2019 90% Employee participation in Conscious Inclusion Training $3.2M Raised through employee giving and company match 13 Ciena Leadership EXECUTIVE OFFICERS Patrick H. Nettles, Ph.D. Executive Chairperson of the Board of Directors Joseph R. Cumello Senior Vice President and General Manager, Blue Planet Software Andrew C. Petrik Vice President and Controller Gary B. Smith President, Chief Executive Officer and Director Sheela Kosaraju Senior Vice President, General Counsel and Assistant Secretary Jason M. Phipps Senior Vice President, Global Customer Engagement James E. Moylan, Jr. Senior Vice President, Chief Financial Officer Scott A. McFeely Senior Vice President, Global Products and Services David M. Rothenstein Senior Vice President, Chief Strategy Officer and Corporate Secretary OUTSIDE BOARD MEMBERS Hassan M. Ahmed, Ph.D. Former Chairman of the Board and Chief Executive Officer Affirmed Networks Bruce L. Claflin Former Chief Executive Officer 3Com Corporation Lawton W. Fitt Chairperson The Progressive Corporation Patrick T. Gallagher Chairperson Harmonic, Inc. Devinder Kumar Former Senior Vice President, Chief Financial Officer, Treasurer Advanced Micro Devices, Inc. T. Michael Nevens Senior Adviser Permira Advisers, LLC Judith M. O’Brien Former Partner King & Spalding LLP Joanne B. Olsen Former Executive Vice President Global Cloud Services and SupportOracle Corporation 14 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) Í ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended October 29, 2022 OR ‘ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-36250 Ciena Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 23-2725311 (I.R.S. Employer Identification No.) 7035 Ridge Road, Hanover, MD (Address of principal executive offices) 21076 (Zip Code) Registrant’s telephone number, including area code: (410) 694-5700 Securities registered pursuant to Section 12(b) of the Act: Trading Symbol(s) Title of each class Common Stock, $0.01 par value CIEN Securities registered pursuant to Section 12(g) of the Act: None Name of each exchange on which registered New York Stock Exchange Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes Í No ‘ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ‘ No Í Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes Í No ‘ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232 .405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes Í No ‘ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. Large accelerated filer Í Accelerated filer ‘ Non-accelerated filer ‘ Smaller reporting company ‘ Emerging growth company ‘ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ‘ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. Í Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act) Yes ‘ No Í The aggregate market value of the registrant’s Common Stock held by non-affiliates of the registrant was approximately $8.3 billion based on the closing price of the Common Stock on the New York Stock Exchange on April 29, 2022. The number of shares of registrant’s Common Stock outstanding as of December 9, 2022 was 148,415,009. DOCUMENTS INCORPORATED BY REFERENCE Part III of the Form 10-K incorporates by reference certain portions of the registrant’s definitive proxy statement for its 2023 Annual Meeting of Stockholders to be filed with the Commission not later than 120 days after the end of the fiscal year covered by this report. CIENA CORPORATION ANNUAL REPORT ON FORM 10-K FOR FISCAL YEAR ENDED OCTOBER 29, 2022 TABLE OF CONTENTS Item 1. Business Item 1A. Risk Factors Item 1B. Unresolved Staff Comments Item 2. Properties Item 3. Legal Proceedings Item 4. Mine Safety Disclosures PART I PART II Item 5. Market for Registrant’s Common Stock, Related Stockholder Matters and Issuer Purchases of Equity Securities Item 6. [Reserved] Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations Item 7A. Quantitative and Qualitative Disclosures about Market Risk Item 8. Financial Statements and Supplementary Data Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure Item 9A. Controls and Procedures Item 9B. Other Information Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspection PART III Item 10. Directors, Executive Officers and Corporate Governance Item 11. Executive Compensation Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters Item 13. Certain Relationships and Related Transactions, and Director Independence Item 14. Principal Accountant Fees and Services PART IV Item 15. Exhibits and Financial Statement Schedules Item 16. Form 10-K Summary Signatures Index to Exhibits Page 6 28 54 54 54 54 55 56 56 77 79 131 131 132 132 133 133 133 133 133 134 134 135 2 Cautionary Note Regarding Forward-Looking Statements PART I This annual report contains statements that discuss future events or expectations, projections of results of operations or financial condition, changes in the markets for our products and services, trends in our business, business prospects and strategies and other “forward-looking” information. In some cases, you can identify “forward-looking statements” by words like “may,” “will,” “would,” “can,” “should,” “could,” “expects,” “future,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “intends,” “potential,” “projects,” “targets,” or “continue” or the negative of those words and other comparable words. These statements may relate to, among other things, our competitive landscape; market conditions and growth opportunities; factors impacting our industry and markets, including global supply chain constraints; factors impacting the businesses of network operators and their network architectures; adoption of next-generation infrastructures that are more open, programmable and automated; our strategy, including our research and development, supply chain and go-to-market initiatives; efforts to increase application of our solutions in customer networks and to increase the reach of our business into new or growing customer and geographic markets; our backlog and seasonality in our business; expectations for our financial results, revenue, gross margin, operating expense and key operating measures in future periods; the adequacy of our sources of liquidity to satisfy our working capital needs, capital expenditures and other liquidity requirements; business initiatives including information technology (“IT”) transitions or initiatives; the impact of COVID-19 on our business, financial results and operations; the impact of changes in tax law and our effective tax rates; and market risks associated with financial instruments and foreign currency exchange rates. These statements are subject to known and unknown risks, uncertainties and other factors, and actual events or results may differ materially from any future results, activity, performance, or achievements expressed or implied by these forward-looking statements, including due to factors such as those set forth below in “Risk Factors Summary.” For a discussion of additional important factors that could cause actual results to vary materially from those anticipated in the forward-looking statements, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Risk Factors” in this annual report. We operate in a very competitive and dynamic environment and new risks and uncertainties emerge, are identified or become apparent from time to time and therefore may not be identified in this annual report. We cannot predict all risks and uncertainties that could have an impact on the forward-looking statements contained in this annual report. You should be aware that the forward-looking statements contained in this annual report are based on our current views and assumptions. We undertake no obligation to revise or update any forward-looking statements made in this annual report to reflect events or circumstances after the date hereof or to reflect new information or the occurrence of unanticipated events, except as required by law. The forward-looking statements in this annual report are intended to be subject to protection afforded by the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. Unless the context requires otherwise, references in this annual report to “Ciena,” the “Company,” “we,” “us” and “our” refer to Ciena Corporation. Risk Factors Summary Investing in our securities involves a high degree of risk. The following is a summary of the principal factors that make an investment in our securities speculative or risky, as more fully described below in the section titled “Risk Factors.” This summary should be read in conjunction with the “Risk Factors” section and should not be relied upon as an exhaustive summary of the material risks facing our business. In addition to this summary, you should consider the information set forth in the “Risk Factors” section and the other information contained in this annual report before investing in our securities. Risks Related to Our Business and Industry • Our revenue, gross margin and operating results can fluctuate significantly and unpredictably from quarter to quarter. 3 • Challenges relating to current supply chain constraints, including semiconductor components, could adversely impact our growth, gross margins and financial results. • We have recently been experiencing unprecedented demand, and our backlog may not be an accurate indicator of our level and timing of future revenues. • A small number of customers account for a significant portion of our revenue. The loss of these customers or a significant reduction in their spending could have a material adverse effect on our business and results of operations. • We face intense competition that could hurt our sales and results of operations, and we expect the competitive landscape in which we operate to continue to broaden to include additional solutions providers. • The COVID-19 pandemic has impacted our business and results of operation and could have a material adverse effect on our business, results of operations and financial condition in the future. • Investment of research and development resources in communications networking technologies for which there is not an adequate market demand, or failure to invest sufficiently or timely in technologies for which there is high market demand, would adversely affect our revenue and profitability. • We have no guaranteed purchases and regularly must re-win business for existing customers. • Network equipment sales often involve lengthy sales cycles and protracted contract negotiations that may require us to agree to commercial terms or conditions that negatively affect pricing, risk allocation, payment and the timing of revenue recognition. • If we are unable to adapt our business to the consumption models for networking solutions adopted by our customers and to offer attractive solutions across these consumption models, our business, competitive position and results of operations could be adversely affected. • Our go-to-market activities and the distribution of our WaveLogic® coherent modem technology within the market for high-performance transceivers/modems could expose us to increased or new forms of competition, or adversely affect our existing systems business and results of operations. • Accurately matching necessary inventory levels to customer demand within the current environment is challenging, and we may incur additional costs or be required to write off significant inventory that would adversely impact our results of operations. • If the market for network software does not evolve in the way we anticipate or if customers do not adopt our Blue Planet Automation Software and Services, we may not be able to monetize these software assets and realize a key part of our business strategy. • Our exposure to the credit risks of our customers and resellers may make it difficult to collect receivables and could adversely affect our revenue and operating results. • We may be required to write down the value of certain significant assets, which would adversely affect our operating results. • • Product performance problems and undetected errors affecting the performance, interoperability, reliability or security of our products could damage our business reputation and negatively affect our results of operations. Strategic acquisitions and investments could disrupt our operations and may expose us to increased costs and unexpected liabilities. Risks Relating to the Macroeconomic Environment and our Global Presence • Our business and operating results could be adversely affected by unfavorable changes in macroeconomic and market conditions and reductions in the level of spending by customers in response to these conditions. 4 • The international scale of our sales and operations exposes us to additional risk and expense that could adversely affect our results of operations. • Efforts to increase our sales and capture market share in targeted international markets may be unsuccessful. • We may be adversely affected by fluctuations in currency exchange rates. Risks Related to Our Operations and Reliance on Third Parties • We may experience delays in the development and production of our products that may negatively affect our competitive position and business. • We rely on third-party contract manufacturers, and our business and results of operations may be adversely affected by risks associated with their businesses, financial condition and the geographies in which they operate. • Our reliance on third-party component suppliers, including sole and limited source suppliers, exposes our business to additional risk, including risk relating to our suppliers’ businesses and financial position and risks arising as a result of geopolitical events, and could limit our sales, increase our costs and harm our customer relationships. • We rely on third-party resellers and distribution partners to sell our solutions, and on third-party service partners for installation, maintenance and support functions, and our failure to develop and manage these relationships effectively could adversely affect our business, results of operations, and relationships with our customers. • We may be exposed to unanticipated risks and additional obligations in connection with our resale of complementary products or technology of other companies. • Growth of our business is dependent on the proper functioning and scalability of our internal business processes and information systems. Adoption of new systems, modifications or interruptions of services may disrupt our business, processes and internal controls. • Restructuring activities could disrupt our business and affect our results of operations. • If we are unable to attract and retain qualified personnel, we may be unable to manage our business effectively. Risks Related to Intellectual Property, Litigation, Regulation and Government Policy • Our intellectual property rights may be difficult and costly to enforce. • We may incur significant costs in response to claims by others that we infringe their intellectual property rights. • Our products incorporate software and other technology under license from third parties, and our business would be adversely affected if this technology were no longer available to us on commercially reasonable terms. • Data security breaches and cyber-attacks could compromise our intellectual property or other sensitive information and cause significant damage to our business, reputation and operational capacity. • We are a party to legal proceedings, investigations and other claims or disputes, which are costly to defend and, if determined adversely to us, could require us to pay fines or damages, undertake remedial measures, or prevent us from taking certain actions, any of which could adversely affect our business. • Changes in trade policy, including the imposition of tariffs, increased export control and investment restrictions, and efforts to withdraw from or materially modify international trade agreements, as well as other regulatory efforts impacting the import and sale of foreign equipment, may adversely affect our business, operations and financial condition. 5 • Changes in government regulations affecting the communications and technology industries and the businesses of our customers could harm our prospects and operating results. • The effects of the United Kingdom’s withdrawal from membership in the European Union remain uncertain. • Government regulations related to the environment, climate change and social initiatives could adversely affect our business and operating results. • Changes in tax law or regulation, effective tax rates and other adverse outcomes with taxing authorities could adversely affect our results of operations. • Failure to maintain effective internal controls over financial reporting could have a material adverse effect on our business, operating results and stock price. Risks Related to Our Common Stock, Indebtedness and Investments • Our stock price is volatile. • Outstanding indebtedness under our senior secured credit facilities and senior unsecured notes may adversely affect our liquidity and results of operations and could limit our business. • Significant volatility and uncertainty in the capital markets may limit our access to funding on favorable terms or at all. Item 1. Business Overview We are a networking systems, services and software company, providing solutions that enable a wide range of network operators to deploy and manage next-generation networks that deliver services to businesses and consumers. We provide hardware, software and services that support the delivery of video, data and voice traffic over core, metro, aggregation and access communications networks. Our solutions are used globally by communications service providers, cable and multiservice operators, Web-scale providers, submarine network operators, governments, and enterprises across multiple industry verticals. Our portfolio is designed to enable the Adaptive Network™, which is our vision for a network end state that leverages a programmable and scalable network infrastructure, driven by software control and automation capabilities, that are informed by analytics and intelligence. By transforming network infrastructures into dynamic, programmable environments driven by automation and analytics, network operators can realize greater business agility, dynamically adapt to changing end-user service demands and rapidly introduce new revenue- generating services. They can also gain valuable real-time network insights, allowing them to optimize network performance and maximize the return on their network infrastructure investment. Our solutions include Networking Platforms, including our Converged Packet Optical and Routing and Switching portfolios, which can be applied from the network core to end-user access points, and which allow network operators to scale capacity, increase transmission speeds, allocate traffic efficiently and adapt dynamically to changing end-user service demands. Our Converged Packet Optical portfolio includes products that support long haul and regional networks, submarine and data center interconnect networks, and metro and edge networks. Our Routing and Switching portfolio includes products and solutions that enable efficient internet protocol (“IP”) transport in next-generation metro edge, access and aggregation networks. To complement our Networking Platforms, we offer Platform Software, which includes our Manage, Control and Plan (“MCP”) applications that deliver advanced multi-layer domain control and operations. Through our Blue Planet® Software we also enable complete service lifecycle management automation with productized operational support systems (“OSS”) and service assurance solutions that help our customers to achieve closed loop automation across multi-vendor and multi-domain environments. 6 In addition to our systems and software, we also offer a broad range of services that help our customers build, operate and improve their networks and associated operational environments. These include network transformation, consulting, implementation, systems integration, maintenance, network operations center (“NOC”) management, learning, and optimization services. Recent and Pending Acquisitions In the first quarter of fiscal 2023, we entered into a definitive agreement to acquire Tibit Communications, Inc., a provider of passive optical network solutions, and we completed our acquisition of Benu Networks, Inc., a provider of broadband network gateway software. See Note 28, “Subsequent Events” to to our Consolidated Financial Statements included in Item 8 of Part II of this annual report for additional information. Industry Background Network Traffic Growth and Increased Capacity Requirements The market in which we sell is dynamic and characterized by a high rate of change. Optical networks – which carry video, data and voice traffic by encoding digital information on multiple wavelengths of light traveling across fiber optic cables – have experienced strong traffic growth. This network traffic growth is being driven by a diverse set of communications services that often require on-demand service levels by enterprise and consumer end users, as well as cloud-based services and applications: • Cloud-Based Services. Enterprises and consumers continue to replace locally-housed computing and storage by adopting a broad array of innovative cloud-based models – including Platform as a Service (PaaS), Software as a Service (SaaS) and Infrastructure as a Service (IaaS) – and an expanding range of cloud-based services that host key applications, store data, enable the viewing and downloading of content, and utilize on-demand computing resources. In addition, content is increasingly moving to the network edge, creating new capacity and traffic demands closer to the user. • Over-the-Top (“OTT”) Services and Video Streaming. OTT content refers to video, multimedia and other applications provided directly from the content source to the viewer or end user across a third- party network. Traffic from streaming and OTT services, including high definition and ultra-high definition video, has expanded with the increased availability of, and end-user demand for, video content accessible through a variety of devices and media. • Mobile Traffic and Applications. Traffic from mobile web applications, including video, internet and data services, has expanded with the continued proliferation of smartphones and other wireless devices. Because much of wireless traffic ultimately travels across a wireline network to reach its destination, growth in mobile communications continues to place demands upon wireline networks, including the backhaul and fronthaul portions of networks emanating from cell sites. • Residential Access Applications and Enterprise Applications. In recent years there has been a shift in bandwidth demands, traffic patterns and computing functions to the edge of networks. This trend has been meaningfully accelerated by the COVID-19 pandemic, including due to an increase in remote and hybrid working, distance learning, and work from home arrangements. With a higher percentage of data flows concentrating closer to the network edge, more capacity and higher bandwidth to home and enterprise locations is required. These shifts could be permanent, and could influence network architectures and require network operators to adapt. Emerging technologies, services and applications are further impacting or expected to impact network infrastructures, particularly at the edge of networks, where increased computing power and automation are required to meet the quality of experience required by end users. These include: • 5G. Fifth-generation wireless broadband (“5G”) technology is enabling meaningful increases in bandwidth and performance, and enabling emerging applications and services that 4G/LTE networks 7 cannot support. To fully capitalize on these opportunities, network operators will need to consider the demands 5G technology will place on their wireline infrastructures, including through the addition of additional cell sites as part of the network densification efforts that are paving the way for 5G implementation. • Fiber-Based Access Networks. Network densification initiatives by cable and multiservice operators seek to push more digital fiber closer to the end user in an effort to increase potential bandwidth, computing capability and data speeds to homes and enterprises, while decreasing power, space and operating costs. Wireline service providers are responding to similar service and end customer demands by extending fiber to the home and deeper into access networks. • • Internet of Things (“IoT”). As networked connections between devices and servers grow, machine-to-machine-related traffic (“M2M”) is expected to represent an increasing portion of traffic. These connections allow sharing of data that can be monitored and analyzed, including in smart grid applications, health care and safety monitoring, resource and inventory management, home entertainment, consumer appliances, connected transportation and other M2M data applications. Immersive Technologies and Ultra-High Definition Video (“UHD”). Immersive technologies like virtual reality (“VR”), augmented reality (“AR”), interactive experiences, gaming and 360° video, as well as UHD (4K and 8K) video, are likely to place further capacity demands on networks as adoption of these technologies grows. Consumer electronics and other technology companies are rapidly advancing these applications,which require high bandwidth and low latency, and making the associated devices more widely available and affordable to consumers. • Edge Computing. To provide end user’s with the required experience for a growing set of immersive cloud services, network operators have increased, and are expected to continue to increase, the number and capabilities of edge computing locations to allow these latency-sensitive workloads to be processed closer to users. These changes at the edge of networks may affect network topologies, demands and traffic patterns. • Machine Learning (“ML”) and Artificial Intelligence (“AI”). By increasing network intelligence and improving automation, ML and AI can enable improvements in network planning, operations, user experience and trouble resolution. Adoption of these technologies is expected to continue to increase as the IoT expands and additional services are created, and ML and AI will serve as drivers of further network traffic and solutions innovation. We believe that increased adoption of these technologies, services, and applications and their performance requirements will further increase network traffic and place additional service challenges on network infrastructures, requiring network operators to invest in their metro, access and aggregation networks, as well as their core networks. Demand for More Programmable and Automated Networks To create a more digital experience for their end users, reduce operational costs and introduce more service agility, network operators are investing in next-generation infrastructures that combine end-to-end service automation with the deployment of highly programmable infrastructures. We expect network operators will continue to pursue strategies that emphasize one or more of the following: • Closed Loop Automation. Network operators are seeking to reduce network operating costs and better leverage analytics and control capabilities to automate end-to-end service creation and operation. Closed loop automation is a continuous cycle of communications between the programmable network infrastructure and software control elements to analyze network conditions, traffic demands, and resource availability to determine the best placement of traffic or network functions to deliver optimal service quality and resource utilization. 8 • Software-Defined Networking (“SDN”). SDN seeks to simplify networks to create more open environments that ease management, support automation and quickly deliver services to end users. SDN enables individual network elements to be directly programmable by standards-based software control. This results in end-to-end visibility of network flows, and the optimization of traffic paths and the control of data flows through a network. • Network Function Virtualization (“NFV”). NFV is the separation of network services or capabilities from the physical network assets that traditionally provide these services or capabilities to end users. To accelerate the introduction of new services, network operators are increasingly using solutions like NFV, which enables network functions that traditionally would have run on specialized or dedicated hardware to be provided through software that runs on industry-standard servers and network and storage platforms. We believe that adoption of these strategies, and the related evolution of core, metro, aggregation and access network infrastructures, will require network operators and their network solutions vendors to increasingly look to utilize an ecosystem of both physical and virtual network resources, optimized through software. We expect that these network architectural approaches, in turn, will require an increased degree of cooperation, collaboration and interoperability among networking solutions vendors. Different Approaches to Design and Procure Network Infrastructure Solutions Network operators are pursuing a diverse range of approaches, or “consumption models,” in their design and procurement of network infrastructure solutions. In addition to purchasing fully integrated network solutions including hardware, software and services from the same vendor, new consumption models include the procurement or use of: • • • • • a fully integrated infrastructure solution from one vendor with the separate use of a network operator’s own software or that of another vendor; integrated photonic line systems with open interfaces from one vendor and the separate or “disaggregated” procurement of modem technology from a different vendor; open source software in concert with or as an alternative to integrated, proprietary third-party software solutions; open IP network operating systems running on off-the-shelf third-party equipment; and system integration services or customer self-integration to reconstitute the disaggregated components. Some network operators, including certain of our largest customers, have adopted or are pursuing development and use of published reference designs and open source specifications for the procurement of off-the-shelf or commoditized hardware (often referred to as “white box” hardware). This commoditized hardware could be used with in-house developed data path and control software or third-party developed network operating software. Further, some network operators are pursuing network strategies that emphasize the deployment of smaller form factor, pluggable modem technology, that can be housed in a switch or router platform, or used in place of a modem in a traditional optical system. The consumption models that ultimately emerge and their level of adoption will depend in significant part on the circumstances and strategies of certain network operators. While the adoption of these approaches has been limited to date, we expect that continued customer consideration of a variety of consumption models will require network operators and vendors alike to assess, and possibly broaden, their offerings and commercial models over time, thereby placing a premium on a vendor’s ability to provide robust network solutions with the maximum amount of flexibility and choice. 9 Supply Chain Constraints In the face of extraordinary demand across a range of industries, global supply for certain raw materials and components, including, in particular, semiconductor, integrated circuits and other electronic components, has experienced substantial constraint and disruption in recent periods. These conditions are impacting a wide range of industries and, across the networking industry, participants are experiencing component shortages, extended lead times, increased costs, and unexpected cancellation or delay of previously committed supply. We believe these supply chain challenges and their adverse impact on our industry will continue at least through fiscal 2023 and expect that the extended lead times and elevated supply chain costs experienced by our industry will persist for the reasonably foreseeable future. It is unclear when the supply environment will become less volatile and what impacts the supply environment will have on the industry in future periods. Product Development and Sustainability As network traffic and service expansion continue to grow, network operators are looking toward technology innovation as a means to help support their business models and prepare for a low carbon future. Network operators are increasingly looking to their technology vendor partners to help them manage the environmental impact of their networks, including energy use, greenhouse gas emissions, and equipment refurbishment and recycling. For innovation leaders capable of advancing a development strategy and product roadmap that addresses the network performance and sustainability outcomes sought by network operators, a market transition to a low carbon future and the ability to offer greener technology offerings present meaningful opportunities for enhanced competitive position and business growth. Strategy Our strategy is to leverage our technology leadership, diversification and global scale to drive the profitable growth of our business. Key elements of this strategy include: Extend Innovation Leadership in Core and Optical Networking. We are focused on using our significant research and development investment capacity to push the pace of innovation in our traditional markets and provide leading offerings that leverage our Adaptive Network vision to make our customers’ networks more dynamic through further advances in programmable network platforms, analytics, control and automation. To strengthen our optical leadership, during fiscal 2022, we acquired Xelic, Inc. (“Xelic”), a provider and developer of field-programmable gate array (“FPGA”) and application-specific integrated circuit (ASIC) technology and optical networking IP cores. We also continue to innovate, increase the performance of, and enhance the capabilities for our leading WaveLogic® coherent modem technology in multiple form factors. To support our enhanced portfolio and solutions offerings, we intend to grow our attached services business and leverage network transformation with a broader service offering that includes network migration, optimization and multi- vendor network integration. Invest in Next Generation Metro and Edge Networking Solutions. To expand our addressable markets and capture additional opportunities in metro and edge applications, we are making significant investments in our Routing and Switching solutions. We are leveraging our optical expertise to offer new architectural approaches to address Metro and Edge network use cases. Among other things, in fiscal 2022, we launched our Residential Broadband Coherent Routing solutions, and we are developing Routing and Switching solutions with enhanced IP/Ethernet capabilities, including packet routing, aggregation and switching, 5G cross-haul, fiber-based passive optical network (“PON”) access, and edge computing. To advance our strategy and transform the network edge, including in 5G networks and cloud environments, in the first quarter of fiscal 2022, we acquired from AT&T its Vyatta virtual routing and switching technology (“Vyatta”). During the first quarter of fiscal 2023, we also acquired Benu Networks, Inc. (“Benu”) and its portfolio of cloud-native software solutions, including a virtual Broadband Network Gateway (“(v)BNG”), which complements and extends our existing portfolio of broadband access solutions. During the first quarter of fiscal 2023, we also entered into a definitive agreement to acquire Tibit Communications, Inc., a provider of passive optical network solutions. 10 Embrace Multiple Consumption Models and Promote Choice. We are offering a range of networking solutions across different consumption models to drive the evolution of next-generation network infrastructures and to promote choice in our markets. We have made our coherent technology available in both integrated systems and pluggable form factors that together address a range of technical and economic requirements of network operators. We are pursuing sales opportunities that leverage our WaveLogic technology in the form of high-performance transceivers/modems – the combination of a Ciena-designed optical chipset and ASIC with other key optical components that is sold independently of integrated systems. By addressing multiple consumption models, we seek to secure a larger portion of the world’s optical network wavelengths, expand our addressable market and access new customer verticals and applications. Promote Enhanced Software Automation. To support our customers business needs for rapid service introduction and optimized network operation, we seek to improve network layer automation and programmability by advancing our multi-layer domain controller—MCP software and applications. We are also focused on gaining adoption and expanding application for our Adaptive IP software, leveraging our Service- Aware Operating System (“SAOS”) embedded in our Routing and Switching products. We also seek to promote broader adoption of our Blue Planet Automation Software, highlighting its ability to automate the service management lifecycle. In so doing, we believe that Blue Planet can help customers with their digital transformations by transitioning legacy networks into “service ready” networks, accelerating the creation, delivery and management of new services. A key part of our strategy is to grow our software business as a portion of our total business through expanded customer adoption and broader applications, and to gain adoption of recurring and subscription-based models. Focus Diversification on High-Growth Applications and Customer Segments. We believe that the continued diversification of our business is important to address the dynamic industry environment in which we operate, continue to grow our business, and better withstand potential slowdowns adversely affecting particular geographies, markets or customer segments. We seek to continue diversifying our solutions offerings, customer base and geographic reach to address fast-growing applications and markets, including those that are adjacent to or complementary with our current addressable market. Our go-to-market strategy seeks to capture additional market share with existing customers and emerging network operators, and to displace competitors, particularly in international markets. Customers and Markets We sell our product and service solutions through direct and indirect sales channels to network operators in the following customer and market segments: • Communications Service Providers. Our communications service provider customers include regional, metro, national and international wireline and wireless carriers, and access network providers. • Web-scale Providers. Our “Web-scale” provider customers – also often referred to in the market as hyper-scale providers – include internet content providers (“ICPs”) and providers of internet services and infrastructure, including data centers, cloud networking, storage infrastructure and web hosting services. These providers are focused on applications such as search, social media, video, real-time communications and cloud-based service offerings, as well as other emerging network services. In addition to their direct investment in building and operating networks, as significant purchasers of capacity on submarine networks and from communications service providers on a global basis, these customers can also influence networking solution alternatives by those network operators. • Cable and Multiservice Operators (MSO). Our customers include regional, metro, national and international cable and multiservice operators. • Submarine Network Operators. Our customers include service providers, Web-scale providers and consortia operators of submarine communications networks across the globe. 11 • Enterprises. Our enterprise customers include large, multi-site commercial organizations, including participants in the financial, healthcare, transportation, utilities, energy and retail industries. • Government. Our government customers include federal and state agencies in the United States as well as international governmental entities. Products and Services Our products and services include the solutions described below within our Networking Platforms, Platform Software and Services, Blue Planet Automation Software and Services, and Global Services operating segments. We also offer solutions that bring together multiple products and services from across our operating segments and portfolios to address key customer use cases and infrastructure needs with an aim to enable our customers to evolve their existing network environments. Networking Platforms Our Networking Platforms segment consists of our Converged Packet Optical and Routing and Switching portfolios. Converged Packet Optical. Our Converged Packet Optical portfolio includes a range of products and solutions that use our WaveLogic coherent optical technology and our intelligent photonics solutions and are optimized for the convergence of coherent optical transport, open optical networking, Optical Transport Network (“OTN”) switching and IP routing and switching. Our 6500 Packet-Optical Platform provides a flexible and scalable converged multi-layer transport solution that adds capacity to core, regional, metro and submarine networks and enables efficient transport at high transmission speeds. This platform provides leading coherent wavelength capacities, from 100G to 800G, along with a flexible photonic layer and multi-layer control plane capabilities for scale and service differentiation. This platform, which includes several chassis sizes and a comprehensive set of line cards optimized for individual services or applications, can be used throughout the network, from customer premises to access and metropolitan networks, regional and core networks, and submarine cable landing sites. Our Waveserver® family of products consists of compact, modular interconnect platforms that allow network operators to scale bandwidth and support high-bandwidth interconnect applications, such as high-speed data transfer, content delivery, virtual machine migration and disaster recovery/backup between data centers. Waveserver is purpose-built to address disaggregated transponder, data center and general space-constrained applications using a small footprint and low power design. With its modern software architecture, open APIs, and common data models, Waveserver is easy to operate and integrate into existing networks and facilitates deployment of on-demand cloud and high-capacity connectivity services. Our 6500 Reconfigurable Line System (“RLS”) is a compact, simple-to-deploy, disaggregated intelligent photonic layer line system that improves scalability, reduces footprint, and offers more flexibility and programmability. Its applications include long-haul and metro data center interconnection and general network modernization and simplification. It offers increased fiber capacity through automated C- and L-band deployments and provides highly dense, remote optical add/drop multiplexing and switching features that enable network operators to react to unpredictable traffic requirements by scaling connectivity and capacity. Our 5400 family of Packet-Optical Platforms consist of multi-terabit reconfigurable switching systems that consolidate the functionality of an add/drop multiplexer and a digital cross-connect into a single, high-capacity intelligent switching system. These products address both core and metro segments of communications networks and support key managed services, including Ethernet/TDM Private Line and IP services. These products provide for optical transport, traffic aggregation at the network edge and switching that are optimized for handoff at the network core. 12 Our coherent-optimized edge line system, Coherent ELS, is a high-capacity disaggregated line system that is designed to address next-generation access photonic line system requirements, including the transport of coherent wavelengths originating from pluggables, through a compact, hardened form factor designed to accommodate outside plant deployments. With a focus on reducing operational complexity, our Coherent ELS open line system (OLS) uses integrated intelligence and automation to simplify and scale deployments. We also offer footprint-optimized WL5n 100G-400G coherent pluggable transceivers to address next- generation access, metro, regional and data center interconnect network applications, which are supported across both our systems and third-party equipment. With respect to the transceiver market, our opportunities with high- performance coherent transceiver module and pluggables remain in the early stages, and revenue has not been significant to date. Sales of these products are reflected within the Converged Packet Optical product line of our Networking Platforms segment. Routing and Switching. Our Routing and Switching portfolio includes products and solutions that enable next-generation metro, access and aggregation or “edge” networks, including solutions that allow customers to simplify their network designs while delivering new, revenue-generating services. These products route, aggregate and switch IP-based traffic to support such applications as IP services, Ethernet business services, cell site routing, mobile cross-haul, converged haul, and services, 5G and fiber-based access networks, and consumer/ residential broadband access, as well as ongoing network infrastructure scaling. Our Routing and Switching products are based on our Adaptive IP approach, which delivers end-to-end IP-based services in an automated and more simplified manner than traditional IP network designs. Our Routing and Switching products enable operators to achieve improved network cost effectiveness, including reduced costs associated with power and space, as compared to more complex, traditional IP routing. Central to our Routing and Switching platforms is our SAOS and next-gen IP network operating system, which provide the software-based capabilities to support 5G, IP VPN services, access, passive optical network (PON), converged interconnect network (CIN) architectures, coherent optical transport, and NFV applications in our portfolio. SAOS provides automation-friendly intelligence and operational data to enable network-level programmability supported by open standards. Our 3000 family of Service Delivery Platforms and our 5000 family of Service Aggregation Platforms support network access and aggregation, respectively, and have been principally deployed to support IP and Ethernet business services, wireless front haul, backhaul and mid-backhaul applications, and residential broadband applications. Our 3000 family of platforms are purpose-built to fit small to large customer sites as well as multi-tenant offices, residential buildings or homes, and edge office or outside plant applications. They also allow customers to migrate toward software-based networking and services based on NFV. Our 5000 family provides aggregation to fill higher capacity links within both the metro access and aggregation tiers of networks, allowing operators to reduce the number of router assets required in the core and to better implement edge cloud architectures. Our 8100 Coherent Routing platforms combine high-capacity multi-terabit IP routing and switching from 1GbE to 100GbE with high capacity WaveLogic 5 Nano coherent optical transport from 100/200/400GbE for next-generation metro and edge applications. Our Vyatta virtual routing and switching technology and products were acquired from AT&T in the first quarter of fiscal 2022. These products include a cloud-grade router and software for enterprise and cloud networks that enable hardware-like routing performance for enterprises across multi-cloud and virtualized edge networks. This scalable and modular software can be deployed as a Virtual Machine (VM) application as well as in virtualized and disaggregated network environment. Our 6500 Packet Transport System (“PTS”) combines packet switching, control plane operation and integrated optics. Together with our 3900 platforms, PTS enables our service provider customers to migrate their legacy TDM (SONET/SDH/PDH) services to a scalable, lower operational cost packet solution. 13 Our Routing and Switching portfolio also includes our 8700 Packetwave Platform, a multi-terabit packet switching platform for high-density metro networks and inter-data center wide area networks. The 8700 Packetwave Platform combines packet switching and coherent WaveLogic dense wavelength division multiplexing (“DWDM”) optical transport technologies for both data center networks and metro networks. Our Routing and Switching portfolio will also include cloud-native software solutions, including a virtual Broadband Network Gateway, which we acquired in our acquisition of Benu in the first quarter of fiscal 2023. Platform Software and Services Our software offerings also include our Platform Software, which provides domain control management, analytics, data and planning tools and applications to assist customers in managing their networks, including by creating more efficient operations and more proactive visibility into their networks. Our Platform Software includes: • Manage, Control and Plan. MCP software provides intelligent, multi-layer network control of our routing, switching and optical solutions, enabling simplification, acceleration and automation of multi- layer network operations. Our MCP domain controller provides fault, configuration, accounting, performance and security (“FCAPS”) management for multi-layer networks, in combination with services management and online network planning. MCP simplifies multi-layer lifecycle operations – including equipment commissioning, service provisioning, service assurance and performance monitoring. MCP provides this functionality for Ciena-developed products as well as a number of products developed by other vendors where they form a unified solution. • MCP Apps. Our suite of MCP applications integrate software control and analytics applications in a unified interface that provides network performance data. Through our suite of MCP applications and open APIs, MCP software can integrate into network operators’ Operational Support Systems (“OSS”) and business processes, supporting our customers’ journey towards automation of end-to-end operational workflows. • Platform Software Services. To complement our Platform Software portfolio, we offer a range of related services that include software subscription services, consulting, network migration and integration, installation and upgrade support services, and technical support relating to our Platform Software offerings. These services are focused on enabling our customers to operate their Ciena networks most efficiently, and to modernize their operations. Our Platform Software offering also includes planning tools as well as a number of legacy software solutions, including our OneControl unified management system, that support our installed base of network solutions. As we achieve further customer adoption of our MCP software platform, and as we transition features, functionality and customers to that platform, we expect revenue to decline for our legacy Platform Software solutions. Blue Planet Automation Software and Services Our Blue Planet Automation Software is a comprehensive, cloud native, and standards-based software portfolio that enables customers to realize digital transformation through the automation of the services lifecycle. Our Blue Planet applications are open and modular, and can be deployed either individually or in any combination. These applications include: • Multi-Domain Service Orchestration (MDSO). Network infrastructures are comprised of multiple technology layers and domains – such as the radio access network (RAN), data center, cloud, access, transport, and mobile core networks. With new 5G network implementations, it is often complex for network operators to offer automated, end-to-end services in this environment. Blue Planet enables service orchestration across multiple physical and virtual network domains, multiple layers (Optical, Ethernet, IP and Mobile Core) and multiple hardware and software vendors. 14 • Inventory (“BPI”). By integrating or “federating” data from multiple inventory systems and presenting it in a single dynamic view, BPI allows real-time visibility into the end-to-end topology and status of network and service resources. Integrating with legacy OSS, BPI helps network providers simplify key operational processes such as service fulfillment, network planning and service assurance. • Route Optimization and Analysis (“ROA”). ROA combines routing, traffic and performance analytics for real-time monitoring of IP services across domains and across the cloud. These capabilities provide enhanced network observability capabilities and enable troubleshooting of latent or transient network problems, and modeling, to predict the impact of network infrastructure, service and workload changes, to build more resilient networks. • NFV Orchestration (“NFVO”). Blue Planet provides NFV management and orchestration capabilities for creating and managing virtualized network functions and data center resources. NFVO uses an open, vendor-agnostic approach that allows network operators to select and scale virtual network functions (“VNFs”) or cloud-native network functions (“CNFs”) they wish to offer to customers. • Unified Assurance & Analytics (“UAA”). UAA leverages multi-layer/multi-domain assurance and AI-powered analytics to provide insights into the health and performance of network resources and services, ensuring an end-customer quality of experience and availability to meet dynamic service demands. • Blue Planet Services. To complement our software portfolio, we offer a range of related services that include professional services for solution customization and OSS integration, software and solution support services, consulting and design, and technical support relating to our software offerings. These services are focused on enhancing network automation and network analytics, enabling multi-vendor integration and support, and implementing programmable multi-domain next-generation networks. The Blue Planet Automation Software portfolio allows operators to fulfill services rapidly and to meet end-customer quality-of-experience expectations via an entire services lifecycle approach. It also advances network operators towards their vision of self-healing and self-optimizing networks via closed loop automation. Our entrance into the market relating to these software automation capabilities remains in the early stages and, as such, revenue from our Blue Planet Automation Software and Services segment continues to represent a relatively small portion of our total revenue. Global Services We offer a broad suite of value-added services that help our customers to build, operate and improve their networks. We believe that our services offerings and our close collaboration with our customers provide us with valuable insight into the network and business challenges they face, allowing us to provide services to meet their desired business outcomes. We have completed a multi-year transformation process to enhance our service delivery capabilities, reorganizing our resources into regional service delivery and customer success functions to better serve our customers, and streamlining our services cost structure. At the same time, we have broadened our services portfolio to include additional advanced services, including network migration and network transformation, optimization, and multi-vendor service capabilities. Through these initiatives, we believe that we can improve the cost model of our services offerings and drive greater business value for our customers. Our Global Services portfolio includes a range of offerings to meet customer needs and maximize their network infrastructure investment throughout the network lifecycle. These include: • Build. Consulting services to enhance network performance or plan migration to next-generation infrastructures, implementation services to deliver proper planning, design, and deployment services, and systems integration services to integrate third-party solutions; • Operate. Maintenance services that provide end-to-end support for network hardware and software, and managed services to provide management of network infrastructure operations; and 15 • Improve. Optimization services designed to ensure that networks are running at peak performance, and learning services designed to enable customers to better understand and operate their networks. These services are delivered using a combination of our internal services resources, technical support engineers, and qualified and authorized third-party service partners. Product Development To remain competitive, we must continually invest in and enhance our solutions offerings, addressing new market opportunities, adding new features and functionality and ensuring alignment with market demand. Our product development efforts seek to design and bring to market solutions that embrace our Adaptive Network vision through further advances in programmable systems and software, analytics, and control and automation. Through our development efforts, we seek to support network operators as they pursue new business models and sources of revenue from their network infrastructure, and to achieve improved economics and return on their network infrastructure investment. We seek to develop products aimed at optimizing price for performance, managing power consumption, lifecycle operating costs and space requirements, and minimizing the environmental impact of our customers’ network operations. Our approach is also focused on designing products that address a range of emerging consumption models for networking solutions. Our current development efforts are focused on: • Reinforcing our coherent optical leadership with continued development that advances reach, transmission speed and spectral efficiency, including by leading in intelligent photonics; • Executing on parallel innovation paths for our next generation modem technology, including expanding our WaveLogic 5n offerings; • Delivering on our Adaptive IP approach and extending the IP/routing capabilities and use cases of our Routing and Switching solutions to support mobile network cross-haul, edge cloud, and network densification and virtualization initiatives, such as 5G, fiber-based access networks, and residential access; • Pursuing development to address different consumption models, including our module, pluggable, component, disaggregated IP NOS and VNF development initiatives; • Enhancing our Adaptive Network vision through advances in hardware programmability and software- based domain control, automation and analytics through MCP and purpose-built applications; • Advancing our software-led transformation strategy and product development for our Blue Planet Automation Software to enable generation OSS transformation and closed loop automation • Developing products that enhance security and minimize the risk to our customers networks from cyberattacks; and • Delivering products that minimize the lifecycle climate impacts of our customers’ networks and support their sustainability goals. Our research and development efforts are also geared toward portfolio optimization and engineering changes intended to drive product and manufacturing cost reductions across our platforms, and enable muti-vendor sourcing of components. We regularly review our existing solutions offerings and prospective development of new components, features or products in order to determine their fit within our portfolio and broader corporate strategy. We also assess the market demand, technology evolution, prospective return on investment and growth opportunities, as well as the costs and resources necessary to develop and support these products. To ensure that our product development investments and solutions offerings are closely aligned with market demand, we continually seek input from customers and promote collaboration among our product development, marketing and sales 16 organizations. In some cases, where we seek to utilize or gain access to complementary or emerging technologies or solutions, we may obtain technology through an acquisition or, alternatively, through initiatives with third parties pursuant to technology licenses, OEM arrangements and other strategic technology relationships or investments. In addition, we participate in industry and standards organizations and, where appropriate, incorporate information from these affiliations throughout the product development process. Customer Engagement Our Global Customer Engagement organization includes a direct sales presence that is organized geographically around the following markets: (i) the United States, Canada, the Caribbean and Latin America (“Americas”); (ii) Europe, Middle East and Africa (“EMEA”); and (iii) Asia Pacific, Japan and India (“APAC”). Within each geographic area, we maintain specific teams or personnel that focus on a particular region, country, customer or market vertical, or portfolio. These teams include sales management, account salespersons and sales engineers, as well as partner resources, field marketing, services professionals and commercial management personnel, who ensure that we maintain a high-touch, consultative relationship with our customers. We also maintain a global partner program that includes distributors, resellers, systems integrators, service providers and other third-party distributors who market and sell our products and services. We utilize these third- party channel partners to market and sell our solutions into specific geographies, applications or customer verticals. We believe there are opportunities to leverage these relationships to expand our addressable market, while at the same time reducing the financial and operational risk of entering additional markets. For third parties in our Ciena Partner Network, we maintain a code of conduct that is available on our website and that sets forth our expectations for the high standards of ethical and legally compliant conduct we require of them in supporting our business. To support our global customer engagement efforts, we invest in marketing activities to generate demand for our products and services. Our marketing strategy is highly focused on building our brand to create customer preference for Ciena, engaging in thought leadership programs to illustrate how our innovations solve customer business problems, and enabling our sales teams to drive customer adoption of our solutions. Our marketing team supports our sales efforts through a variety of activities, including direct customer interaction, account-based marketing campaigns, portfolio marketing, industry events, media relations, industry analyst relations, social media, trade shows, our website and other marketing vehicles for our customers and channel partners. Operations and Supply Chain Management Our operations personnel manage the relationships with our third-party manufacturers and global supply chain, addressing component sourcing, manufacturing, product testing and quality, and fulfillment and logistics relating to the distribution and support of our products. We utilize a sourcing strategy that emphasizes global procurement of materials and product manufacturing in lower labor cost regions. We rely upon third-party contract manufacturers, including those with facilities in Canada, Mexico, Thailand and the United States, to manufacture, support and ship our products, and therefore are exposed to risks associated with their businesses, financial condition and the geographies in which they operate, including political risk, changes in tax and trade policy involving such countries, and physical risk, including the impact of climate change in such geographies. We also rely upon contract manufacturers and other third parties to perform design and prototype development, component procurement, full production, final assembly, testing and distribution operations. Our manufacturers procure components necessary for assembly and manufacture of our products based on our specifications, approved vendor lists, bills of materials and testing and quality standards. Our manufacturers’ activity is based on rolling forecasts that we provide to them to estimate demand for our products. We work closely with our manufacturers and suppliers to manage material, quality, cost and delivery times, and we continually evaluate their services to ensure performance on a reliable and cost- effective basis. Generally, our agreements with our supply chain and contract manufacturers are frame 17 agreements against which we place purchase orders and do not represent long-term commitments. However, in the face of supply chain challenges experienced in recent periods, including extended lead times, we have placed advance commitments for inventory to mitigate the impact of these supply constraints on our and our customers’ businesses. We currently use distribution partners to fulfill and deliver our products. We believe that our sourcing, manufacturing and distribution strategies allow us to conserve capital, lower costs of product sales, adjust quickly to changes in market demand and operate without dedicating significant resources to manufacturing- related plant and equipment. We continue to focus on a range of initiatives that seek to optimize our operations, improve our resiliency, and drive cost reductions. We seek to balance these goals through our sourcing and supply chain strategy, outsourcing and use of lower cost geographies. Our efforts also include process optimization initiatives, such as vendor-managed inventory, and other operational models and strategies designed to drive improved efficiencies in our sourcing, production, logistics and fulfillment. We actively work with our third-party vendors and business partners to promote socially responsible business practices within our own business and those within our global supply chain. To that end, we have adopted the principles set forth in the Responsible Business Alliance (“RBA”) Code of Conduct. The RBA Code of Conduct establishes standards that aim to ensure working conditions in the electronics industry, or industries in which electronics are a key component, and its supply chains are safe, that workers are treated with respect and dignity, and that business operations are environmentally responsible and conducted ethically. We promote these principles and require our suppliers to agree to adhere to these same standards. We also publish a Sustainability Report and maintain a Human Rights Policy applicable to suppliers, each of which includes more detail about our efforts to promote responsible business practices. For a discussion of actions taken to manage through the ongoing global supply chain constraints, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations- Overview—Supply Chain Constraints” in Item 7 of Part II of this report. Seasonality Like other companies in our industry, we have historically experienced quarterly fluctuations in customer activity due to seasonal considerations. We have typically experienced reductions in order volume toward the end of the calendar year, as the procurement cycles of some of our customers slow and network deployment activity by service providers is curtailed. This period coincides with the first quarter of our fiscal year. This seasonality in our order flows has typically resulted in weaker revenue results in the first quarter of our fiscal year. These seasonal effects may not apply consistently in future periods and may not be a reliable indicator of our future revenue or results of operations. In fact, the effects of the dynamic supply and demand environment we have experienced in recent periods, together with our increased backlog, may impact the traditional seasonality in our business. For a more detailed discussion of the current supply and demand environment and our backlog, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations- Overview” in Item 7 of Part II of this report. Competition Competition among networking solution vendors remains intense on a global basis. The market in which we compete is characterized by rapidly advancing technologies, frequent introduction of new solutions and aggressive selling efforts, including using significant pricing pressure to displace incumbent vendors and capture market share. Competition for sales of networking solutions, including our Networking Platforms and Platform Software and Services, is dominated by a small number of very large, multi-national companies. Our competitors include Nokia, Huawei (as defined below), Cisco, Juniper Networks and ZTE. As compared to us, many of these 18 competitors have substantially greater financial, operational and marketing resources, significantly broader product offerings and more established relationships with service providers and other customer segments. Because of their scale and resources, they may be perceived to be a better fit for the procurement or network strategies of larger network operators. We also continue to compete with several smaller but established companies that offer one or more products that compete directly or indirectly with our offerings or whose products address specific niches within the markets and customer segments we address. These competitors include Infinera, ADVA, Ribbon Communications, Calix, and Adtran. We also compete with a number of companies that provide significant competition for a specific product, application, service, customer segment or geographic market. Keeping pace with the market’s demands for technology innovation requires considerable research and development investment capacity. As a result, some of our competitors, both large and small, have chosen to rely upon component and module technology developed by and procured from third-party providers, including NTT Electronics, Marvell Technology Group and Cisco. We may compete with these providers, either indirectly as a result of their technology being a key enabling technology for our competitors or an alternative consumption model such as “white box” technology, or directly in module, pluggable and component sales opportunities. As we promote our corporate strategy and seek increased customer adoption of our Blue Planet Automation Software, we expect to compete more directly with software vendors and traditional IT services vendors. Competitors for our Blue Planet Automation Software include Cisco, Nokia, Amdocs, Netcracker and Ericsson. Across our markets and segments, the principal competitive factors can include, among others: • • • • • • • • • • • • • • • • functionality, speed, capacity, scalability and performance of network solutions; the ability to meet business needs and drive successful outcomes; price for performance, cost per bit and total cost of ownership of network solutions; incumbency and strength of existing business relationships; technology roadmap and forward innovation capacity, including the ability to invest significant sums in research and development; time-to-market in delivering products and features; company stability and financial health; ability to offer comprehensive networking solutions, consisting of hardware, software and services; flexibility and openness of platforms, including ease of integration, interoperability and integrated management; ability to offer solutions that accommodate a range of different consumption models; operating costs, space requirements and power consumption of network solutions; software and network automation capabilities; ability to manage challenging supply chain environments, including manufacturing and lead-time capability; services and support capabilities; security of enterprise, product development, support processes, and products; and ability to offer solutions that help customers meet their business needs while achieving their climate sustainability goals. 19 Our competitive landscape has been and is likely to continue to be impacted by international trade and related matters, in particular between the U.S. and China. For example, in May 2019, the U.S. Department of Commerce amended the U.S. Export Administration Regulations (“EAR”) by adding Huawei Technologies Co., Ltd. (“Huawei”) and certain affiliates to the “Entity List,” resulting in significant new restrictions on export, reexport and transfer of U.S. regulated technologies and products to Huawei. In August 2020, the U.S. Department of Commerce added additional Huawei affiliates to the Entity List, confirmed the expiration of a temporary general license applicable to Huawei, and amended the foreign direct product rule under the EAR in a manner that significantly expanded its application to Huawei. Separately, the U.S. has taken steps to restrict federal agencies from doing business with, and U.S. wireless carriers from using federal subsidies to buy equipment from, Huawei and ZTE. The U.S. has also encouraged other governments to consider similar restrictions. These actions have resulted in escalating tensions between the U.S. and China and introduce a risk that the Chinese government may take steps to retaliate against U.S. industries or companies. We also expect the competition in our industry to continue to broaden and to intensify as network operators pursue a diverse range of network strategies and consumption models. As these changes occur, we expect that our business will overlap more directly with additional networking solution suppliers, including IP router vendors, data center switch providers and other suppliers or integrators of networking technology traditionally geared toward different network applications, layers or functions. We may also face competition from system and component vendors, including those in our supply chain, who develop pluggable modem technology or other networking products based on off-the-shelf or commoditized hardware technology, referred to as “white box” hardware, particularly where a customer’s network strategy seeks to emphasize deployment of such product offerings or to adopt a disaggregated approach to the procurement of hardware and software. Patents, Trademarks and Other Intellectual Property Rights The success of our business and technology leadership depends significantly on our proprietary and internally developed technology. We rely upon the intellectual property protections afforded by patents, copyrights, trademarks and trade secret laws to establish, maintain and enforce rights in our proprietary technologies and product branding. We regularly file applications for patents and have a significant number of patents in the United States and other countries where we do business. As of December 1, 2022, we had approximately 2,100 issued patents and more than 580 pending patent applications worldwide. Enforcing proprietary rights, especially patents, can be costly, and we cannot be certain that the steps that we are taking will detect, prevent, or minimize the risks of all unauthorized use. The industry in which we compete is characterized by rapidly changing technology, a large number of patents, and frequent claims and related litigation regarding patent and other intellectual property rights. We have been subject to several claims related to patent infringement, and we have been requested to indemnify customers pursuant to contractual indemnity obligations relating to infringement claims made by third parties. Intellectual property infringement assertions could cause us to incur substantial costs, including settlement costs and legal fees in the defense of related actions. If we are not successful in defending these claims, our business could be adversely affected. Our operating system software, Platform Software, Blue Planet Automation Software and other solutions incorporate software and components under licenses from third parties, including software subject to various open source software licenses. Failure to obtain or maintain such licenses or other third-party intellectual property rights could affect our development efforts and market opportunities, or could require us to re-engineer our products or to obtain alternate technologies. Moreover, there is a risk that open source and other technology licenses could be construed in a manner that could impose unanticipated conditions or restrictions on our ability to commercialize our products. Environment and Sustainability Our innovation efforts and our environmental sustainability initiatives are closely linked. Our products and product development efforts are designed to offer significant improvements in footprint and power savings, in 20 order to help enable more efficient and sustainable networks for our customers. We promote environmental sustainability through our efforts to improve the energy efficiency per gigabit of throughput in our networking solutions, as well as our initiatives to reduce the total number of network elements required to operate a network. We pursue opportunities to minimize the resource impacts in our product design, and to manage the life cycle impact of our products, including packaging and distribution, support, and end-of-life reuse, refurbishment, and recycling. We voluntarily provide on an annual basis CDP climate change and water disclosures and are a member of the RBA. We have adopted, and seek to ensure that our key direct suppliers adopt, the standards and principles set forth in the RBA Code of Conduct. People and Culture Our technology solutions are developed, marketed, sold and supported by the talented individuals that make up our global workforce of our 8,079 persons as of October 29, 2022, over 98% of whom were full-time employees. We have a broad base of talent in more than 35 countries, with approximately 57% in the Americas, 35% in APAC, and 8% in EMEA, the majority of whom are in engineering, operations or sales roles. We understand that our industry and innovation leadership is ultimately rooted in people. Competition for qualified personnel in the technology space is intense, and our success depends in large part on our ability to recruit, develop and retain a productive and engaged workforce. Accordingly, investing in our employees and their well-being, offering competitive compensation and benefits, and adopting progressive human capital management practices constitute a core element of our corporate strategy. Our Board of Directors oversees our corporate strategy, which includes management’s design and execution of our “people strategy.” This strategy seeks to ensure that we continue to attract and retain the talent necessary to execute on our business plans, and that we have programs, initiatives, rewards and recognition that are well aligned and support these goals.Through our “People Promise,” we promote a workplace environment where our employees are empowered, feel included and have an opportunity to make a difference through their work at Ciena. In doing so, we seek to cultivate for employees a culture of vibrancy, belonging and happiness, while enabling us to be an attractive employer of choice within our markets. Our executive team is actively involved in and sponsors key initiatives and employee resource groups intended to promote this corporate culture. To that end, our people strategy is focused on the following: • Promote Belonging through Diversity and Inclusion Initiatives. We promote an inclusive and diverse workplace, where all individuals are respected and feel they belong regardless of their age, race, national origin, gender, religion, disability, sexual orientation or gender identity through recruiting outreach, internal networking and resource groups, inclusivity networks, and mentoring programs. As of October 29, 2022, our global workforce was approximately 21.6% female. Our Board of Directors is 30% female and 20% ethnically diverse. As of December 31, 2021, in the U.S., where we are headquartered, our 1,760 employee workforce approximately reflected the following ethnicities: 65.5% White, 21.3% Asian, 5.8% Hispanic or Latino, 4.7% Black or African American, 2.1% two or more races (Not Hispanic or Latino), and 0.6% additional groups (including American Indian, Alaska Native, Native Hawaiian or Other Pacific Islander). We are committed to increasing diversity in our workforce at all levels, and regularly monitor our recruitment process to improve the diversity of our workforce and candidate pool. Our commitment to providing an inclusive workplace is demonstrated through the introduction of a corporate objective for fiscal 2022 to have 80% of our global workforce participate in our Conscious Inclusion Workshops, which we exceeded by achieving 90% participation as of the end of fiscal 2022. In addition, we support multiple active internal networking and resource groups, including our Women@Ciena group, Black & African Heritage group, LatinX group, Pride@Ciena LGBT+ group, and our Next@Ciena early in career group. In fiscal 2022, we also launched Vets at Ciena, our veterans’ employee resource group. In fiscal 2022, we continued to run a targeted development program aimed at strengthening underrepresented individuals’ sense of belonging and enhancing communication, confidence, self-awareness and financial acumen. We also maintain a 21 global Inclusivity Council, which is led by two of our executives and aims to address actions for inclusion, and we have signed The CEO Action for Diversity & Inclusion. • Support Employee Wellbeing and Engagement. We prioritize supporting the overall wellbeing of our employees and their eligible dependents. We provide a broad and diverse suite of offerings that focus on physical, mental and emotional, financial and social wellbeing and, during fiscal 2022, we expanded our offerings to include a focus on key life events such as aging and retirement readiness. Our wellbeing programs are deployed through a variety of means including expense reimbursement benefits, wellbeing challenges and rewards, 24x7 crisis support, employee assistance resources, mental health coaching, and a library of resources accessible to participants digitally and through hosted webinars. We regularly seek input from employees through employee engagement and pulse surveys on specific issues that are intended to assess our degree of success in promoting an environment that supports our People Promise and measures our culture of compliance. Our fiscal 2022 employee engagement survey had a participation rate of approximately 77% and resulted in engagement scores across all indexes that met or exceeded industry benchmarks. Our global wellbeing program also includes a long-standing practice of remote and flexible working arrangements and flexible paid time off in many of our geographies. • Offer Competitive Compensation and Ensure Pay Equity. We strive to ensure that our employees receive competitive, fair and transparent compensation and progressive benefits offerings. We conduct an annual pay fairness assessment of gender globally and of ethnicity in the U.S. and take action to ensure we are paying individuals performing similar work equitably. We deployed Syndio’s workplace equity platform beginning in fiscal 2020 to fine-tune our methodology and enable regular global pay fairness assessments. To align performance and stockholder interest, we base our annual incentive compensation on both business and individual performance, we maintain an employee stock purchase plan and we have broadly expanded employee participation in equity compensation in recent years. We also offer competitive family leave, including global family leave to support employees throughout various life stages, carer’s leave, bereavement leave, parental leave that includes a minimum of 18 weeks paid time off for new mothers (including eight weeks recovery and ten weeks bonding) and ten weeks paid time off for new fathers and adoptive parents, and financial assistance for adoptive parents, and recently expanded flexible paid time-off to more than 98% of our workforce globally. We offer meaningful retirement benefits and programming to promote retirement readiness among our employee base. In recent years, we have enhanced employer contributions to our North America retirement plans, added our first ESG fund option for employees and, as of October 29, 2022, achieved greater than 99% participation of eligible employees in the U.S. and Canada in our defined contribution retirement plans. • Provide Programs for Employee Recognition. We also offer rewards and recognition programs to our employees, including peer and management-initiated awards to recognize employees who best exemplify our core values, patent incentive and distinguished engineer awards, and awards recognizing employees who exemplify our commitment to our communities and volunteerism. We believe that providing these recognition programs helps drive strong employee performance. • Create Opportunities for Growth and Development. As of October 29, 2022, approximately 20.8% of our employees are “early in career,” or age 30 and under, 51.4% are “mid-career,” or age 31 to 50, and 27.8% are “late in career,” or age 51 and over. We focus on creating opportunities for employee growth, development, training and education at all career stages, including opportunities to cultivate talent and identify candidates for new roles from within the company, early in career and new graduate networking and development programs, management and leadership development programs, coaching and mentoring programs, and support for continuing education through tuition reimbursement. We operate a leadership succession planning process that aims to develop and retain key talent and ensure business continuity for key roles. We also recently launched a program to identify individuals throughout the organization who have been identified as having high potential for the future growth and development, so that this earlier in career talent can be nurtured for future leadership roles. 22 • Promote Community Outreach and Support. We believe it is important to give back and promote community outreach and support through corporate giving, charitable matching, and employee volunteerism in the communities in which we live and work. Through our “Ciena Cares” community program, we provide corporate matching of employee charitable donations, flexible volunteering during work time, and corporate rewards for service hours that can be donated by employees. In fiscal 2020, we launched our Digital Inclusion initiative, which aims to mobilize our global workforce, leverage our innovation leadership, and collaborate with customers, suppliers and other partners to bridge the digital divide. Through this initiative, we have funded programming to support underserved students in our global communities by emphasizing digital inclusion and equity through greater connectivity, access to enabling technologies and digital skills development. We have also partnered with Tree-Nation by planting a tree for each existing and new employee at Ciena. • Promote a Strong Ethical Business Culture. We believe that commitments to good corporate governance and the highest ethical standards are essential to our long-term success, and we are dedicated to instilling in our employees a commitment to integrity and business ethics. We maintain a Code of Business Conduct and Ethics that sets standards of conduct for Ciena’s directors, officers and employees. All employees are required to complete training on our Code of Business Conduct and Ethics, and we conduct recurring employee affirmations with respect to our Code of Business Conduct and Ethics and periodic training and communication related to specific topics contained therein. In addition, we maintain a Corporate Compliance Committee that promotes integrity and compliance leadership throughout Ciena, and a dedicated function focused exclusively on Compliance and Ethics. We also maintain several easily accessible internal and external methods by which our employees, business partners, and investors can report concerns relating to the ethical operation of our business, including anonymously where permitted. We conduct surveys of all employees on our compliance program and culture of integrity in order to assess and strengthen our culture and practices and received feedback from approximately 69% of our employees in fiscal 2022. Response to the COVID-19 Pandemic. In response to the COVID-19 pandemic, we have prioritized the safety of our employees and business partners, while continuing to support the needs of our customers and communities during this unprecedented period. Beginning in March 2020, we temporarily closed most of our offices globally, implemented travel restrictions and withdrew from certain industry events. Subsequently and in accordance with relevant public health guidance and local conditions, we conducted a phased return to our offices and facilities, implemented a hybrid remote/office working model for most of our employees, and resumed certain travel. We have also maintained employee benefits and wellbeing initiatives adopted during the COVID-19 pandemic, including physical, emotional, mental, and social programming. Governmental Regulations Environmental Matters Environmental regulation is increasing across various jurisdictions, and we expect that our domestic and international operations may be subject to additional environmental compliance requirements, which could require us to incur additional costs. To date, our compliance actions and costs relating to environmental regulations have not resulted in a material cost or effect on our capital expenditures, earnings or competitive position. Our business and operations are currently subject to environmental laws in various jurisdictions around the world, including the Waste Electrical and Electronic Equipment (“WEEE”) and Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (“RoHS”) regulations adopted by the European Union (the “EU”). We are also subject to disclosure and related requirements that apply to the presence of “conflict minerals” in our products or supply chain. We seek to operate our business in compliance with applicable laws relating to the materials and content of our products and product takeback and recycling, and have programs, policies, and customer offerings that help us to address these laws. 23 Other Regulations As a company with global operations, we are subject to complex foreign and U.S. laws and regulations, including trade regulations, tariffs, import and export regulations, anti-bribery and corruption laws, antitrust or competition laws, data privacy laws, such as the EU General Data Protection Regulation (the “GDPR”), and environmental regulations, among others. We have policies and procedures in place to promote compliance with these laws and regulations. To date, our compliance actions and costs relating to these laws, rules and regulations have not resulted in a material cost or effect on our capital expenditures, earnings or competitive position. Government regulations are subject to change, and accordingly we are unable to assess the possible effect of compliance with future requirements or whether our compliance with such regulations will materially impact our business in the future. For further discussion of how government regulations may affect our business, see the related discussion in “Risk Factors – Risks Related to Intellectual Property, Litigation, Regulation and Government Policy.” Access to SEC Reports Our website address is www.ciena.com. We make our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to those reports, available free of charge in the “Investors” section of our website as soon as reasonably practicable after we file these reports with the Securities and Exchange Commission (the “SEC”). We routinely post these reports, recent news and announcements, financial results and other important information about our business on our website at www.ciena.com. Information contained on our website is not a part of this annual report. Information About Our Directors and Executive Officers The table below sets forth certain information concerning our directors and executive officers: Name Age Position Patrick H. Nettles, Ph.D. Gary B. Smith Stephen B. Alexander Rick L. Hamilton Scott A. McFeely James E. Moylan, Jr. Andrew C. Petrik Jason M. Phipps David M. Rothenstein 79 Executive Chairman of the Board of Directors 62 President, Chief Executive Officer and Director 63 Senior Vice President and Chief Technology Officer 51 Senior Vice President, Blue Planet Software 59 Senior Vice President, Global Products and Services 71 Senior Vice President and Chief Financial Officer 59 Vice President and Controller 50 Senior Vice President, Global Customer Engagement 54 Senior Vice President, General Counsel and Secretary, and acting Chief Strategy Officer Hassan M. Ahmed, Ph.D. (1)(3) Bruce L. Claflin (1)(2) Lawton W. Fitt (2) Patrick T. Gallagher (1)(3) Devinder Kumar (2) T. Michael Nevens (2) Judith M. O’Brien (1)(3) Joanne B. Olsen (1)(3) 64 Director 71 Director 69 Director 67 Director 67 Director 73 Director 72 Director 64 Director (1) Member of the Compensation Committee (2) Member of the Audit Committee (3) Member of the Governance and Nominations Committee Our Directors hold staggered terms of office, expiring as follows: Ms. O’Brien, Ms. Olsen and Mr. Smith in 2023; Dr. Ahmed, Mr. Claflin, Mr. Gallagher and Mr. Nevens in 2024; and Ms. Fitt, Mr. Kumar and Dr. Nettles in 2025. 24 Patrick H. Nettles, Ph.D. has served as a Director of Ciena since April 1994 and as Executive Chairman of the Board of Directors since May 2001. From October 2000 to May 2001, Dr. Nettles was Chairman of the Board of Directors and Chief Executive Officer of Ciena, and he was President and Chief Executive Officer from April 1994 to October 2000. Dr. Nettles serves as a Trustee for the California Institute of Technology. Dr. Nettles previously served on the boards of directors of Axcelis Technologies, Inc., where he was independent chairman of the board, The Progressive Corporation, where he was chair of the audit committee, Apptrigger, Inc., which was formerly known as Carrius Technologies, Inc., and Optiwind Corp, and previously served as a Trustee for the Georgia Tech Foundation, Inc. Gary B. Smith joined Ciena in 1997 and has served as President and Chief Executive Officer since May 2001. Mr. Smith has served on Ciena’s Board of Directors since October 2000. Prior to his current role, his positions with Ciena included Chief Operating Officer and Senior Vice President, Worldwide Sales. Mr. Smith previously served as Vice President of Sales and Marketing for INTELSAT and Cray Communications, Inc. Mr. Smith previously served on the boards of directors of CommVault Systems, Inc. and Avaya Inc. Mr. Smith is a member of the President’s National Security Telecommunications Advisory Committee, serves on the Wake Forest University Entrepreneurship Advisory Council, and participates in initiatives with the Center for Corporate Innovation. Stephen B. Alexander joined Ciena in 1994 and has served as Chief Technology Officer since September 1998 and as a Senior Vice President since January 2000. Mr. Alexander has previously served as General Manager of Products and Technology and General Manager of Transport and Switching and Data Networking. Rick L. Hamilton joined Ciena in October 2016 and has served as Senior Vice President, Blue Planet Software since February 2017. Mr. Hamilton is responsible for managing Ciena’s Blue Planet Automation Software and Services portfolio. Mr. Hamilton previously served as Senior Vice President, Global Services & Automation. Prior to joining Ciena, he served as Corporate Vice President, Professional Services for Juniper Networks from January to October 2016. From January 2004 to December 2015, Mr. Hamilton served with Cisco Systems in various services leadership positions, including most recently as Vice President, Cloud & Managed Services. Scott A. McFeely joined Ciena in March 2010 and has served as Senior Vice President, Global Products and Services since May 2018. Mr. McFeely is responsible for all aspects of Ciena’s networking portfolio including research and development activities relating to its Converged Packet Optical and Routing and Switching portfolios, Platform Software and Services, product line management, supply chain operations, and Global Services. From November 2015 to May 2018, Mr. McFeely served as Senior Vice President, Networking Platforms and became an executive officer in February 2017. From March 2010 to October 2015, he served as Vice President, Global Portfolio Management and Business Operations. Mr. McFeely joined Ciena in connection with its acquisition of Nortel’s Metro Ethernet Networks business, with which he spent more than 20 years in a variety of technical and management roles. James E. Moylan, Jr. joined Ciena in 2007 and has served as Senior Vice President and Chief Financial Officer since December 2007. Andrew C. Petrik joined Ciena in 1996 and has served as Vice President, Controller since August 1997. He also served as Treasurer from August 1997 to October 2008. Jason M. Phipps joined Ciena in 2002 and has served as Senior Vice President, Global Customer Engagement (formerly titled Senior Vice President, Global Sales and Marketing) since February 2017, in which capacity he is responsible for Ciena’s global sales organization. From January 2014 to February 2017, Mr. Phipps served as Vice President and General Manager, North America Sales, during which time he also oversaw the Global Partners & Channels practice, and from March 2011 to December 2013 he served as Vice President, 25 Global Sales Operations. Mr. Phipps has also previously held a number of sales and marketing leadership positions with Ciena. David M. Rothenstein joined Ciena in January 2001 and has served as Senior Vice President, General Counsel and Secretary since November 2008. Mr. Rothenstein has also served as acting Chief Strategy Officer since March 2022. Mr. Rothenstein served as Vice President and Associate General Counsel from July 2004 to October 2008 and previously as Assistant General Counsel. Hassan M. Ahmed, Ph.D. has served as a Director of Ciena since June 2020. Dr. Ahmed has served as Executive Chairman and CEO of Sway AI, Inc. since March 2021 and served as Executive Chairman of Founder SPAC from March 2021 to August 2022. He previously served as Chairman of the board of directors and Chief Executive Officer of Affirmed Networks, Inc., which was acquired by Microsoft in April 2020. Before founding Affirmed Networks in 2010, he was a senior advisor at Charles River Ventures. From 1998 to 2008, Dr. Ahmed served as Chairman and Chief Executive Officer of Sonus Networks, Inc. Prior to that time, he served in various executive roles at Ascend Communications, Inc., Cascade Communications Corporation and Analog Devices, Inc. He also served as President and founder of WaveAccess, Inc., and founded and served as director of the VLSI Systems Group of Motorola Codex. Dr. Ahmed previously served as Associate Professor of Electrical, Computer and Systems Engineering and Associate Professor of Finance at Boston University. Dr. Ahmed currently serves on the board of directors of KINS Technology Group, Inc., a publicly traded company, and Vesper Technologies, Inc., Oxefit, Inc., Avesha Inc., and Sway AI, Inc., all private companies. Dr. Ahmed previously served on the board of directors of and Founder SPAC, a publicly traded company. Bruce L. Claflin has served as a Director of Ciena since August 2006. Mr. Claflin served as President and Chief Executive Officer of 3Com Corporation from January 2001 until his retirement in February 2006. Mr. Claflin joined 3Com as President and Chief Operating Officer in August 1998. Prior to 3Com, Mr. Claflin served as Senior Vice President and General Manager, Sales and Marketing, for Digital Equipment Corporation. Mr. Claflin also worked for 22 years at IBM, where he held various sales, marketing and management positions, including general manager of IBM PC Company’s worldwide research and development, product and brand management, as well as president of IBM PC Company Americas. Mr. Claflin currently serves on the board of directors of IDEXX Laboratories, Inc., a publicly traded company, where he is Chair of the Governance and Corporate Responsibility Committee and serves on the Audit Committee. Mr. Claflin previously served on the board of directors of Advanced Micro Devices, Inc. (“AMD”), where he served as Chairman for 10 years. Lawton W. Fitt has served as a Director of Ciena since November 2000. From October 2002 to March 2005, Ms. Fitt served as Director of the Royal Academy of Arts in London. From 1979 to October 2002, Ms. Fitt was an investment banker with Goldman Sachs & Co., where she was a partner from 1994 to October 2002. Ms. Fitt currently serves on the boards of directors of The Carlyle Group Inc., where she serves as Lead Independent Director, The Progressive Corporation, where she serves as Chairperson of the Board, and Micro Focus International PLC, all publicly traded companies. Ms. Fitt also serves as a director or trustee of several non-profit organizations. Ms. Fitt previously served on the boards of directors of ARM Holdings PLC and Thomson Reuters Corporation. Patrick T. Gallagher has served as a Director of Ciena since May 2009. Since October 2007, Mr. Gallagher has served as Chairman of Harmonic Inc., a publicly traded company and global provider of high-performance video solutions to the broadcast, cable, telecommunications and managed service provider sectors. Mr. Gallagher has served as Chairman of privately held Mirabeau SAS, a French wine producer, since August 2019. From January 2014 until January 2022, Mr. Gallagher served as Chairman of privately-held Intercloud SAS, an international software defined cloud interconnect company. Previously, from March 2008 until April 2012, Mr. Gallagher served as Chairman of Ubiquisys Ltd, from January 2008 until February 2009, Mr. Gallagher served as Chairman of Macro 4 plc, and from May 2006 until March 2008, he served as Vice Chairman of Golden Telecom Inc. From 2003 until 2006, Mr. Gallagher was Executive Vice Chairman and served as Chief 26 Executive Officer of FLAG Telecom Group Ltd. and, prior to that role, he held various senior management positions at British Telecom. Mr. Gallagher also previously served on the board of directors of Sollers JSC. Devinder Kumar has served as a Director of Ciena since August 2019. Mr. Kumar currently serves as Executive Vice President, Chief Financial Officer and Treasurer of AMD, a publicly traded company, in which capacity he is responsible for the global finance organization as well as global corporate services and facilities. He was appointed Chief Financial Officer in January 2013 and Treasurer in April 2015. Since he joined AMD in 1984, Mr. Kumar has progressed through several leadership positions in corporate accounting and corporate finance, including serving as CFO, corporate controller and assistant treasurer. He also spent 10 years in Asia as financial controller for AMD Penang and group finance director for AMD’s Manufacturing Services Group across Singapore, Thailand, China and Malaysia. T. Michael Nevens has served as a Director of Ciena since February 2014. Since 2006, Mr. Nevens has served as senior adviser to Permira Advisers, LLC, an international private equity fund. From 1980 to 2002, Mr. Nevens held various leadership positions at McKinsey & Co., most recently as a director (senior partner) and as managing partner of the firm’s Global Technology Practice. He also served on the board of the McKinsey Global Institute, which conducts research on economic and policy issues. Mr. Nevens has been an adjunct professor of Corporate Governance and Strategy at the Mendoza College of Business at the University of Notre Dame. Mr. Nevens also serves as Chairman of the board of directors of NetApp, Inc., a publicly traded company, and on the board of directors of TalonX, Inc., a private company. Mr. Nevens previously served on the board of directors of Altera Corporation. Judith M. O’Brien has served as a Director of Ciena since July 2000. From November 2012 until her retirement in December 2019, Ms. O’Brien served as a partner and head or co-head of the Emerging Company Practice Group at the law firm of King & Spalding. Ms. O’Brien served as Executive Vice President and General Counsel of Obopay, Inc., a provider of mobile payment services, from November 2006 through December 2010. From February 2001 until October 2006, Ms. O’Brien served as a Managing Director at Incubic Venture Fund, a venture capital firm. From August 1980 until February 2001, Ms. O’Brien was a lawyer with Wilson Sonsini Goodrich & Rosati, where, from February 1984 to February 2001, she was a partner specializing in corporate finance, mergers and acquisitions, and general corporate matters. Ms. O’Brien serves on the boards of directors of privately held companies Theatro Labs, Inc., MagicCube, Inc., and LightDeck Diagnostics, Inc. Ms. O’Brien also previously served on the boards of directors of Adaptec, Inc. and Inform, Inc. Joanne B. Olsen has served as a Director of Ciena since October 2018. Ms. Olsen previously served as Executive Vice President of Global Cloud Services and Support at Oracle from 2016 until her retirement in August 2017. In that role, she drove Oracle’s cloud transformation services and support strategy, partnering with leaders across all business units. Ms. Olsen previously served as Senior Vice President and leader of Oracle’s applications sales, alliances, and consulting organizations in North America from 2012 through 2016, and from 2010 through 2012 served in various general management positions at Oracle. Ms. Olsen began her career with IBM, where, between 1979 and 2010, she held a variety of executive management positions across sales, global financing and hardware. Ms. Olsen also serves on the boards of directors of Teradata Corporation and Keysight Technologies, Inc., both publicly traded companies. 27 Item 1A. Risk Factors Investing in our securities involves a high degree of risk. In addition to the other information contained in this report, you should consider the following risk factors before investing in our securities. Risks Related to Our Business and Industry Our revenue, gross margin and operating results can fluctuate significantly and unpredictably from quarter to quarter. Our revenue, gross margin and results of operations can fluctuate significantly and unpredictably from quarter to quarter. Our budgeted expense levels are based on our visibility into customer spending plans and our projections of future revenue and gross margin. Visibility into customer spending levels can be uncertain, spending patterns are subject to change, and reductions in our expense levels can take significant time to implement. In recent years, a significant portion of our quarterly revenue was generated from customer orders received during that same quarter (which we refer to as “book to revenue”) and therefore less predictable and subject to fluctuation due to a quarterly shortfall in orders. More recently, however, we have generated a significant backlog of customer orders, and our results can be more significantly impacted by availability of supply, as well as any order cancellations or delivery deferrals of existing backlog. Accordingly, our results for a particular quarter can be difficult to predict, and a range of factors including those set forth below can materially adversely affect quarterly revenue, gross margin and operating results: • • • • • • • • • • • • • • • • changes in spending levels or network deployment plans by customers, particularly with respect to our service provider and Web-scale provider customers; order timing and volume, including book to revenue orders; the timing of revenue recognition on sales, particularly relating to large orders; availability of components and manufacturing capacity; shipment and delivery timing; backlog levels; the level of competition and pricing pressure in our industry; the pace and impact of price erosion that we regularly encounter in our markets; the impact of commercial concessions or unfavorable commercial terms required to maintain incumbency or secure new opportunities with key customers; the mix of revenue by product segment, geography and customer in any particular quarter; our level of success in achieving targeted cost reductions and improved efficiencies in our supply chain; our incurrence of start-up costs, including lower margin phases of projects required to support initial deployments, gain new customers or enter new markets; our level of success in accessing new markets and obtaining new customers; long- and short-term changing behaviors or customer needs that impact demand for our products and services or the products and services of our customers; technology-based price compression and our introduction of new platforms with improved price for performance; changing market, economic and political conditions, including the impact of tariffs and other trade restrictions or efforts to withdraw from or materially modify international trade agreements; 28 • • • • • • factors beyond our control such as natural disasters, climate change, acts of war or terrorism, and public health emergencies, such as the COVID-19 pandemic; the financial stability of our customers and suppliers; consolidation activity among our customers, suppliers and competitors; installation service availability and readiness of customer sites; adverse impact of foreign exchange; and seasonal effects in our business. As a result of these factors and other conditions affecting our business and operating results, we believe that quarterly comparisons of our operating results are not necessarily a good indication of possible future performance. Quarterly fluctuations from the above factors may cause our revenue, gross margin and results of operations to underperform in relation to our guidance, long-term financial targets or the expectations of financial analysts or investors, which may cause volatility or decreases in our stock price. Challenges relating to current supply chain constraints, including semiconductor components, could adversely impact our growth, gross margins and financial results. In the face of extraordinary demand across a range of industries, the global supply market for certain raw materials and components, including, in particular, semiconductor, integrated circuits and other electronic components used in most of our products, has experienced significant constraint and disruption in recent periods. This constrained supply environment has adversely affected, and could further affect, component availability, lead times and cost, and could increase the likelihood of unexpected cancellations or delays of previously committed supply of key components. In an effort to mitigate these risks, we have incurred higher costs to secure available inventory, extended our purchase commitments and placed non-cancellable, advanced orders with or through suppliers, particularly for long lead time components. Our efforts to expand our manufacturing capacity and multi-source and pre-order components and finished goods inventory may fail to reduce the impact of these adverse supply chain conditions. Despite our mitigation efforts, constrained supply conditions during fiscal 2022 adversely impacted and are expected to continue to adversely impact our revenue, results of operations and our ability to meet customer demand. For example, fiscal 2022 revenue was adversely impacted by a range of disruptions in our supply chain, including later-than-expected deliveries, lower-than-expected quantities and third-party manufacturing disruptions that took production offline for periods of time. During fiscal 2022, delays and lower-than-expected deliveries from a small group of our suppliers of integrated circuit components that are essential for delivering finished products had a disproportionate impact on our results of operations. At the same time, increased costs associated with supply premiums, expediting fees and freight and logistics have impacted and can be expected to continue to adversely impact our gross margin, profitability and ability to reduce the cost to produce our products in a manner consistent with prior periods. The COVID -19 pandemic has also contributed to and exacerbated this strain, and there can be no assurance that the impacts of the pandemic on our supply chain will not continue, or worsen, in the future. The current supply chain challenges could also impact customer satisfaction or future business opportunities with customers, and result in increased use of cash, engineering design changes, and delays in new product introductions, each of which could adversely impact our business and financial results. We have recently been experiencing unprecedented demand, and our backlog may not be an accurate indicator of our level and timing of future revenues. As a result of order volumes growth in recent periods, our backlog has grown from $2.2 billion at the end of fiscal 2021 to $4.2 billion at the end of fiscal 2022. Backlog may be fulfilled several quarters following receipt of a purchase order, either due to customer purchasing schedules or delays caused by supply chain constraints. 29 Backlog also includes certain service obligations that may relate to a multi-year support period. Our ability to fulfill backlog is being adversely impacted by the current global supply constraints described above. Generally, our customers may cancel, delay or change their orders with limited advance notice, or they may decide not to accept our products and services, although instances of both cancellation and non-acceptance have been rare historically. As a result, backlog should not necessarily be viewed as an accurate indicator of future revenue for any particular period. In addition, we believe that some portion of our increased order volumes in recent periods reflects customer acceleration of future orders due to the implementation of security of supply strategies, or spending that was delayed or deferred in prior years due to COVID-19-related impacts. Our order growth relative to revenue has begun to moderate since the first half of fiscal 2022 and we do not expect the relative level of orders we experienced in fiscal 2022 to be sustainable in the long-term. A small number of customers account for a significant portion of our revenue. The loss of these customers or a significant reduction in their spending could have a material adverse effect on our business and results of operations. A significant portion of our revenue is concentrated among a small number of customers. For example, our ten largest customers contributed 56.3% of our revenue for fiscal 2022 and 55.5% of our revenue for fiscal 2021. Historically, our largest customers by revenue have principally consisted of large communications service providers. For example, AT&T accounted for approximately 11.9% of our revenue for fiscal 2022 and 12.4% of our revenue for fiscal 2021, while Verizon accounted for approximately 11.1% of our revenue for fiscal 2022. As a result of efforts in recent years to diversify our business, the customer segments and geographies that comprise our customer base and top customers by revenue have changed. During fiscal 2022, four Web-scale providers were among our top ten customers. Web-scale customers have been important contributors to our revenue through both our direct sales to them, including for data center interconnection, and their indirect impact on purchases by other network operators. Consequently, our financial results and our ability to grow our business are closely correlated with the spending of a relatively small number of customers. Our business and results of operations could be materially adversely impacted by the loss of a large customer within or outside of these customer segments as well as by reductions in spending or capital expenditure budgets, changes in network deployment plans or changes in consumption models for acquiring networking solutions by our largest customers. There have been significant horizontal and vertical consolidation activities by communications service providers and cable operators, with several such operators acquiring media and content companies. Customer consolidation can increase customer purchasing power and has in the past resulted in delays or reductions in network spending due to changes in strategy or leadership, the timing of regulatory approvals and debt burdens associated with such transactions. Because of our concentration of revenue with communications service providers and Web-scale providers, our business and results of operations can be significantly affected by market, industry or competitive dynamics adversely affecting these customer segments. For example, communications service providers continue to face a rapidly shifting competitive landscape as cloud service operators, OTT providers, and other content providers challenge their traditional business models and network infrastructures. These dynamics have in the past had an adverse effect on network spending levels by certain of our largest service provider customers. Several of these, including AT&T, have announced various initiatives that seek to modify how they purchase networking infrastructure or reduce capital expenditures on network infrastructure in future periods that may adversely affect our results of operations. Our business and results of operations could be materially adversely affected by these factors and other market, industry or competitive dynamics adversely impacting our customers. 30 We face intense competition that could hurt our sales and results of operations, and we expect the competitive landscape in which we operate to continue to broaden to include additional solutions providers. We face an intense competitive market for sales of communications networking equipment, software and services. Competition is intense on a global basis, as we and our competitors aggressively seek to capture market share and displace incumbent equipment vendors. Our industry has historically been dominated by a small number of very large vendors, some of which have substantially greater financial, marketing and research and development resources, broader product offerings and more established relationships with service providers and other customer segments than we do. In addition, to drive scale and market share gains and meet the intense investment capacity required to keep pace with technology innovation, acquisition activity among vendors of networking solutions has increased. Consolidation in our industry may result in competitors with greater resources, pricing flexibility, or other synergies, which may provide them with a competitive advantage. Certain of our customers are adopting procurement strategies that seek to purchase a broader set of networking solutions from two or more vendors. As these customers move to dual or multiple vendor strategies and add new vendors, we may lose our status as sole or primary vendor. We also compete with a number of smaller companies that provide significant competition for specific products, applications, customer segments or geographic markets. Due to the narrower focus of their efforts, these competitors may be more attractive to customers in a particular product niche or commercial opportunity. Generally, competition in our markets is based on any one or a combination of the following factors: • • • • • • • • • • • • • • functionality, speed, capacity, scalability, performance, quality and reliability of solutions; the ability to meet customer business needs and drive successful outcomes; price for performance, cost per bit and total cost of ownership of solutions; incumbency and strength of existing business relationships; ability to offer comprehensive networking solutions, consisting of hardware, software and services; time-to-market in delivering products and features; technology roadmap and forward innovation capacity and ability to deliver on network innovation; company stability and financial health; ability to supply and product delivery lead times; flexibility and openness of platforms, including ease of integration, interoperability and integrated management; ability to offer solutions that accommodate a range of emerging customer consumption models for network solutions; operating costs, space requirements and power consumption of network solutions; software and network automation and analytics capabilities; and services and support capabilities. Part of our strategy is to leverage our technology leadership and to aggressively capture additional market share and displace competitors, particularly with communications service providers internationally. In an effort to maintain our incumbency or to secure new customer opportunities, we have in the past, and may in the future, agree to aggressive pricing, commercial concessions and other unfavorable terms that result in low or negative gross margins on a particular order or group of orders. Competition can also result in onerous commercial and legal terms and conditions that place a disproportionate amount of risk on us. 31 We expect the competition in our industry to continue to broaden and to intensify, as we invest in complementary technologies or adjacent market opportunities, and as network operators pursue a diverse range of network strategies and consumption models. As these changes occur, we expect that our business will compete more directly with additional networking solution suppliers, including IP router vendors and other suppliers or integrators of networking technology. In addition, as we seek increased customer adoption of our Blue Planet Automation Software and Services, and as network operator demands for programmability, automation and analytics increase, we expect to compete more directly with software vendors and IT vendors or integrators of these solutions. We may also face competition from system and component vendors, including those in our supply chain, that develop networking products based on off-the-shelf or commoditized hardware technology, referred to as “white box” hardware. An increase in competitive intensity, the adoption of new consumption models, our entry into new markets or the entry of new competitors into our markets may adversely impact our business and results of operations. The COVID-19 pandemic has impacted our business and results of operation and could have a material adverse effect on our business, results of operations and financial condition in the future. The COVID-19 pandemic and related countermeasures have caused economic and financial disruptions in most of the regions in which we sell our products and services and conduct our business operations. Unprecedented actions were taken by governments and other institutions globally to try to mitigate the impact of the COVID-19 pandemic, some of which continued through fiscal 2022 in certain regions or to certain extents. In fiscal 2022, the COVID-19 pandemic continued to challenge our business operations and adversely impact our financial results, including due to restrictions on travel and gatherings in certain countries and regions, including China, significant supply chain disruptions, and a dynamic demand environment for our products and services. In accordance with relevant public health guidance and local conditions, we have conducted a phased return to our offices and facilities, implemented a hybrid remote/office working model, and resumed certain travel, but continue to closely monitor the COVID-19 pandemic to determine if additional actions or policy adjustments are required. The magnitude and duration of disruption from the COVID-19 pandemic, and its impact on global business activity and our business and operations, remain uncertain. See also the risk factors above entitled “Challenges relating to current supply chain constraints, including with respect to semiconductors and integrated circuits, could adversely impact our revenue, gross margins and financial results” and “We have recently been experiencing unprecedented demand, and our backlog may not be an accurate indicator of our level and timing of future revenues.” Investment of research and development resources in communications networking technologies for which there is not an adequate market demand, or failure to invest sufficiently or timely in technologies for which there is high market demand, would adversely affect our revenue and profitability. The market for communications networking hardware and software solutions is characterized by rapidly evolving technologies, changes in market demand and increasing adoption of software-based networking solutions. We continually invest in research and development to sustain or enhance our existing hardware and software solutions and to develop or acquire new technologies including new software platforms. There is often a lengthy period between commencing these development initiatives and bringing new or improved solutions to market. Accordingly, there is no guarantee that our new products or enhancements to other solutions will achieve market acceptance or that the timing of market adoption will be as predicted. As a general matter, there is a significant possibility that some of our development decisions, including significant expenditures on acquisitions, research and development, or investments in technologies, will not meet our expectations, and that our investment in some projects will be unprofitable. There is also a possibility that we may miss a market opportunity because we failed to invest or invested too late in a technology, product or enhancement sought by our customers or the markets into which we sell. Changes in market demand or investment priorities may also cause us to discontinue existing or planned development for new products or features, which can have a disruptive effect on our relationships with customers. In addition, failure to develop, on a cost-effective basis, 32 innovative new or enhanced solutions that are attractive to customers and profitable to us could have a material adverse effect on our business, results of operations, financial condition and cash flows. We have no guaranteed purchases and regularly must re-win business for existing customers. Generally, our customer contracts do not require customers to purchase any minimum or guaranteed volumes, and we conduct sales through framework contracts under which customers place purchase orders for which they often have the right to modify or cancel. We must regularly compete for and win business with existing customers across all of our customer segments. In addition, Web-scale providers tend to operate on shorter procurement cycles than some of our traditional customers, which can require us to compete to re-win business with these customers more frequently than required with other customers segments. As such, there is no assurance that our incumbency will be maintained at any given customer or that our revenue levels from a customer in a particular period can be achieved in future periods. Customer spending levels can be unpredictable, and our sales to any customer could significantly decrease or cease at any time. Network equipment sales often involve lengthy sales cycles and protracted contract negotiations that may require us to agree to commercial terms or conditions that negatively affect pricing, risk allocation, payment and the timing of revenue recognition. Our sales efforts, particularly with communications service providers, Web-scale providers and other large customers, often involve lengthy sales cycles. These selling efforts often involve a significant commitment of time and resources that may include extensive product testing, laboratory or network certification, network or region-specific product certification and homologation requirements for deployment in networks. Even after a customer awards its business to us or decides to purchase our solutions, the length of time before deployment can vary depending on the customer’s schedule, site readiness, the size of the network deployment, the degree of custom configuration required and other factors. Additionally, these sales also often involve protracted and sometimes difficult contract negotiations in which we may deem it necessary to agree to unfavorable contractual or commercial terms that adversely affect pricing, expose us to penalties for delays or non-performance and require us to assume a disproportionate amount of risk. To maintain incumbency with key customers, we may be required to offer discounted pricing, make commercial concessions or offer less favorable terms as compared to our historical business arrangements with these customers. We may also be requested to provide deferred payment terms, vendor or third-party financing or other alternative purchase structures that extend the timing of payment. Alternatively, customers may insist on terms and conditions that we deem too onerous or not in our best interest, and we may be unable to reach a commercial agreement. As a result, we may incur substantial expense and devote time and resources to potential sales opportunities that never materialize or result in lower than anticipated sales and gross margin. If we are unable to adapt our business to the consumption models for networking solutions adopted by our customers and to offer attractive solutions across these consumption models, our business, competitive position and results of operations could be adversely affected. Growing bandwidth demands and network operator efforts to reduce costs are resulting in a diverse range of approaches to the design and procurement of network infrastructure. We refer to these different approaches as “consumption models.” These consumption models can include: the traditional systems procurement of fully integrated solutions including acquiring hardware, software and services from the same vendor; the procurement of a fully integrated hardware solution from one vendor with the separate use of a network operator’s own SDN-based controller; the procurement of an integrated photonic line system with open interfaces from one vendor and the separate or “disaggregated” procurement of modem technology from a different vendor; or the development and use of published reference designs and open source specifications for the procurement of “white box” hardware to be used with open source software. In parallel, network operators are also exploring procurement alternatives for software solutions, ranging from integrated and proprietary software platforms to fully open source software. 33 We believe that network operators will continue to consider a variety of different consumption models. Many of these approaches are in their very early stages of development and evaluation, and the types of models and their levels of adoption will depend in significant part on the nature of the circumstances and strategies of particular network operators. Among our customers, AT&T, certain Web-scale providers and others are pursuing network strategies that emphasize enhanced software programmability, management and control of networks, and deployment of “white box” hardware. A number of network operators are pursuing the deployment of smaller form factor, pluggable modem technology, particularly within switching and routing solutions, as an alternative to integrated optical networking platforms. Other network operators, including certain of our Web-scale customers, are playing a leading role in the transition to software-defined networking or the standardization of communications network solutions. We believe that the potential for different approaches to the procurement of networking infrastructure will require network operators and vendors to evolve and broaden their existing solutions and commercial models over time. Adoption of a range of consumption models may also alter and broaden our competitive landscape to include other technology vendors, including routing vendors, component vendors and IT software vendors. If we are unable to adapt our business to these new consumption models and offer attractive solutions and commercial models that accommodate the range of consumption models ultimately adopted by our customers or within our markets, our business, competitive position and results of operations could be adversely affected. Our go-to-market activities and the distribution of our WaveLogic coherent modem technology within the market for high-performance transceivers/modems could expose us to increased or new forms of competition, or adversely affect our existing systems business and results of operations. We recently entered the market for high-performance transceivers/modems to monetize our coherent optical technology, expand our addressable market and address a range of customer consumption models for networking solutions. Making our critical technology available in this manner could adversely impact the sale of products in our existing systems business. For example, our customers may choose to adopt disaggregated consumption models or third-party solutions that embed Ciena-designed optical modules instead of purchasing systems-based solutions from us. Accordingly, we may encounter situations where we are competing for opportunities in the market directly against a system from one of our competitors that incorporates Ciena-designed modules or other component technologies. Making this key technology available and enabling third-party sales of Ciena-designed modules may adversely affect our competitive position and increase the risk that third parties misappropriate or attempt to use our technology or related intellectual property without our authorization. These and other risks or unanticipated liabilities or costs associated with the sales of our WaveLogic coherent technology could harm our reputation and adversely affect our business and our results of operations. Our go-to-market activities and the distribution of our WaveLogic coherent technology within the market for high-performance transceivers/modems could expose us to increased or new forms of competition, or adversely affect our systems business and results of operation. Accurately matching necessary inventory levels to customer demand within the current environment is challenging, and we may incur additional costs or be required to write off significant inventory that would adversely impact our results of operations. Since the second quarter of fiscal 2021, we have experienced unprecedented demand for our products and services, and matching necessary inventory to fulfill that demand within the current supply constrained environment is challenging. We have and continue to take a number of steps to mitigate the current supply chain challenges, including extending our purchase commitments and placing non-cancellable, advanced orders with or through suppliers, particularly for long lead time components. As of October 29, 2022 we had $2.6 billion in outstanding purchase order commitments to our contract manufacturers and component suppliers for inventory. We have also been expanding our manufacturing capacity and have been accumulating raw materials inventory of components that are available, in some cases with expanded lead times, in an effort to prepare us to be able to produce finished goods more quickly when supply constraints ease for certain common components, including integrated circuit components, for which delivery continues to be delayed. As a result of this strategy, our 34 inventory has increased from $374.3 million at the end of fiscal 2021 to $946.7 million at the end of fiscal 2022. These inventory practices, and their associated costs, have had, and can be expected to continue to have, an adverse impact on our cash from operations. These inventory practices also further introduce obsolescence risk that can impact our results of operations and financial condition. If our customers were to cancel orders as a result of increased lead times or otherwise, inventory could become obsolete and we could be required to write off or write down the inventory associated with those orders. In addition, if customers were to cancel existing or forecasted orders for which we have significant outstanding commitments to our contract manufacturers or suppliers, we may be required to purchase inventory under these commitments that we are unable to sell. If we are required to write off or write down a significant amount of inventory, our results of operations for the applicable period would be materially adversely affected. Our inability to effectively manage the matching of inventory with customer demand within the current environment could adversely impact our results of operations and financial condition, and could result in loss of revenue, increased costs, or delays that could adversely impact customer satisfaction. If the market for network software does not evolve in the way we anticipate or if customers do not adopt our Blue Planet Automation Software and Services, we may not be able to monetize these software assets and realize a key part of our business strategy. A key part of our business strategy is to increase customer adoption of our Blue Planet Automation Software Platform. If the markets relating to software solutions for network automation, including service orchestration, route optimization, analytics and assurance, and SDN or NFV, do not develop as we anticipate, or if we are unable to commercialize, increase market awareness and gain adoption of our Blue Planet Automation Software and Services within those markets, revenue from our Blue Planet Automation Software and Services may not grow. We have a limited history in commercializing and selling these software solutions and have only recently acquired certain elements of our Blue Planet portfolio. Moreover, the market and competitive landscape for these solutions is dynamic, and it is difficult to predict important trends, including the potential growth, if any, of this market. If the market for these software solutions does not evolve in the way we anticipate or if customers do not adopt our Blue Planet Automation Software and Services, a key part of our strategy for growth would be adversely affected and our financial results may suffer. Our exposure to the credit risks of our customers and resellers may make it difficult to collect receivables and could adversely affect our revenue and operating results. In the course of our sales to customers and resale channel partners, we may have difficulty collecting receivables, and our business and results of operations could be exposed to risks associated with uncollectible accounts. Lack of liquidity in the capital markets, macroeconomic weakness and market volatility may increase our exposure to these credit risks. Our attempts to monitor customer payment capability and to take appropriate measures to protect ourselves may not be sufficient, and it is possible that we may have to write down or write off accounts receivable. Such write-downs or write-offs could negatively affect our operating results for the period in which they occur, and, if large, could have a material adverse effect on our revenue and operating results. We may be required to write down the value of certain significant assets, which would adversely affect our operating results. We have a number of significant assets on our balance sheet as of October 29, 2022, the value of which can be adversely impacted by factors related to our business and operating performance, as well as factors outside of our control. As of October 29, 2022, our balance sheet includes a $824.0 million net deferred tax asset. The value of our net deferred tax assets can be significantly impacted by changes in tax policy, changes in future tax rates, or by our tax planning strategy. For example, the Tax Cuts and Jobs Act (the “Tax Act”) required us to write down our net deferred tax assets by approximately $438.2 million in fiscal 2018. If any additional write-downs are required, our operating results may be materially adversely affected. 35 As of October 29, 2022, our balance sheet also includes $328.3 million of goodwill. We test each reporting unit for impairment of goodwill on an annual basis and, between annual tests, if an event occurs or circumstances change that would, more likely than not, reduce the fair value of the reporting unit below its carrying value. As of October 29, 2022, our balance sheet also includes $427.2 million in long-lived assets, which includes $69.5 million of intangible assets. Valuation of our long-lived assets requires us to make assumptions about future sales prices and sales volumes for our products. These assumptions are used to forecast future, undiscounted cash flows on which our estimates are based. The value of our net deferred tax asset above may also be subject to change in the future, based on our actual or projected generation of future taxable income. If market conditions or our forecasts for our business or any particular operating segment change, we may be required to reassess the value of these assets. We could be required to record an impairment charge against our goodwill and long-lived assets or a valuation allowance against our deferred tax assets. Any write-down of the value of these significant assets would have the effect of decreasing our earnings or increasing our losses in such period. If we are required to take a substantial write-down or charge, our operating results would be materially adversely affected in such period. Product performance problems and undetected errors affecting the performance, interoperability, reliability or security of our products could damage our business reputation and negatively affect our results of operations. The development and production of sophisticated hardware and software for communications network equipment is highly complex. Some of our products can be fully tested only when deployed in communications networks or when carrying traffic with other equipment, and software products may contain bugs that can interfere with expected performance. As a result, undetected defects or errors, and product quality, interoperability, reliability and performance problems are often more acute for initial deployments of new products and product enhancements. We have recently launched, or are in the process of launching, a number of new hardware and software offerings, including evolutions of our WaveLogic coherent optical modem technology and new Routing and Switching platforms and solutions targeting edge, access and aggregation networks. Unanticipated product performance problems can relate to the design, manufacturing, installation, operation and interoperability of our products. Undetected errors can also arise as a result of defects in components, software or manufacturing, installation or maintenance services supplied by third parties, and technology acquired from or licensed by third parties. From time to time we have had to replace certain components, provide software remedies or other remediation in response to defects or bugs, and we may have to do so again in the future. Remediation of such events could materially adversely impact our business and results of operations. In addition, we may encounter unanticipated security vulnerabilities relating to our products or the activities of our supply chain. Our products are used in customer networks transmitting a range of sensitive information, and any actual or perceived exposure of our solutions to malicious software or cyber-attacks could result in liability or regulatory action and adversely affect our business and results of operations. Product performance, reliability, security and quality problems may result in some or all of the following effects: • • • • • • • damage to our reputation, declining sales and order cancellations; increased costs to remediate defects or replace products; payment of liquidated damages, contractual or similar penalties, or other claims for performance failures or delays; increased warranty expense or estimates resulting from higher failure rates, additional field service obligations or other rework costs related to defects; higher charges for increased inventory obsolescence; costs, liabilities and claims that may not be covered by insurance coverage or recoverable from third parties; and delays in recognizing revenue or collecting accounts receivable. 36 These and other consequences relating to undetected errors affecting the quality, reliability and security of our products could negatively affect our business and results of operations. Strategic acquisitions and investments could disrupt our operations and may expose us to increased costs and unexpected liabilities. From time to time, we acquire or make investments in other technology companies, or enter into other strategic relationships, to expand the markets we address, diversify our customer base or acquire, or accelerate the development of, technology or products. To do so, we may use cash, issue equity that could dilute our current stockholders, or incur debt or assume indebtedness. Strategic transactions can involve numerous additional risks, including: • • • • • • • • • • • • • failure to consummate or delay in consummating such transactions; failure to achieve the anticipated transaction benefits or the projected financial results and operational synergies; greater than expected acquisition and integration costs; disruption due to the integration and rationalization of operations, products, technologies and personnel; diversion of management attention; difficulty completing projects of the acquired company and costs related to in-process projects; difficulty managing customer transitions or entering into new markets; the loss of key employees; disruption or termination of business relationships with customers, suppliers, vendors, landlords, licensors and other business partners; ineffective internal controls over financial reporting; dependence on unfamiliar suppliers or manufacturers; assumption of or exposure to unanticipated liabilities, including intellectual property infringement or other legal claims; and adverse tax or accounting impact. As a result of these and other risks, our acquisitions, investments or strategic transactions may not realize the intended benefits and may ultimately have a negative impact on our business, results of operation and financial condition. Risks Relating to the Macroeconomic Environment and our Global Presence Our business and operating results could be adversely affected by unfavorable changes in macroeconomic and market conditions and reductions in the level of spending by customers in response to these conditions. Our business and operating results depend significantly on general market and economic conditions. Market volatility and weakness in the regions in which we operate have previously resulted in sustained periods of decreased demand for our products and services that adversely affected our operating results. The current global macroeconomic environment is volatile and continues to be significantly and adversely impacted by the COVID-19 pandemic, global supply chain constraints, inflation, and a dynamic demand environment. Macroeconomic and market conditions could also be adversely affected by a variety of political, economic or other factors in the United States and international markets that could in turn adversely affect spending levels of 37 our customers and their end users, and could create volatility or deteriorating conditions in the markets in which we operate. Due to our concentration of revenue in the United States, we would expect to incur a more significant impact from any adverse change in the capital spending environment or macroeconomic or market weakness in the United States. Macroeconomic uncertainty or weakness could result in: • • • • • • • • • reductions in customer spending and delay, deferral or cancellation of network infrastructure initiatives; increased competition for fewer network projects and sales opportunities; increased pricing pressure that may adversely affect revenue, gross margin and profitability; decreased ability to forecast operating results and make decisions about budgeting, planning and future investments; increased overhead and production costs as a percentage of revenue; tightening of credit markets needed to fund capital expenditures by us or our customers; customer financial difficulty, including order cancellations, delivery deferrals, longer collection cycles and difficulties collecting accounts receivable or write-offs of receivables; business and financial difficulties faced by our suppliers or other partners, including impacts to material costs, sales, liquidity levels, ability to continue investing in their businesses, ability to import or export goods, ability to meet development commitments and manufacturing capability; and increased risk of charges relating to excess and obsolete inventories and the write-off of other intangible assets. Each of our customers has a unique set of circumstances, and it is unclear how macroeconomic and market conditions may continue to impact their purchasing volumes or behaviors. Reductions in customer spending in response to unfavorable or uncertain macroeconomic and market conditions, globally or in a particular region where we operate, would adversely affect our business, results of operations and financial condition. The international scale of our sales and operations exposes us to additional risk and expense that could adversely affect our results of operations. We market, sell and service our products globally, maintain personnel in numerous countries, and rely on a global supply chain for sourcing important components and manufacturing our products. Our international sales and operations are subject to inherent risks, including: • • • • • • • • • adverse social, political and economic conditions, such as continued inflation and rising interest rates; effects of adverse changes in currency exchange rates; greater difficulty in collecting accounts receivable and longer collection periods; difficulty and cost of staffing and managing foreign operations; higher incidence of corruption or unethical business practices; less protection for intellectual property rights in some countries; tax and customs changes that adversely impact our global sourcing strategy, manufacturing practices, transfer-pricing, or competitiveness of our products for global sales; compliance with certain testing, homologation or customization of products to conform to local standards; significant changes to free trade agreements, trade protection measures, tariffs, export compliance, domestic preference procurement requirements, qualification to transact business and additional regulatory requirements; 38 • • natural disasters (including as a result of climate change), acts of war or terrorism, and public health emergencies, including the COVID-19 pandemic; and uncertain economic, legal and political conditions in Europe, Asia and other regions where we do business, including, for example, as a result of the ongoing military conflict between Russia and Ukraine and changes in China-Taiwan and U.S.-China relations. We utilize a sourcing strategy that emphasizes global procurement of materials that has direct or indirect dependencies upon a number of vendors with operations in the Asia-Pacific region. We also rely upon third-party contract manufacturers, including those with facilities in Canada, Mexico, Thailand and the United States, to manufacture, support and ship our products. Physical, regulatory, technological, market, reputational, and legal risks related to climate change in these regions and globally are increasing in impact and diversity and the magnitude of any short-term or long-term adverse impact on our business or results of operations remains unknown. The physical impacts of climate change, including as a result of certain types of natural disasters occurring more frequently or with more intensity or changing weather patterns, could disrupt our supply chain, result in damage to or closures of our facilities, and could otherwise have an adverse impact on our business, operating results, and financial condition. See also the risk factor below entitled “Government regulations related to the environment, climate change and social initiatives could adversely affect our business and operating results.” Our international operations are subject to complex foreign and U.S. laws and regulations, including anti- bribery and corruption laws, antitrust or competition laws, data privacy laws, such as the GDPR, and environmental regulations, among others. In particular, recent years have seen a substantial increase in anti- bribery law enforcement activity by U.S. regulators, and we currently operate and seek to operate in many parts of the world that are recognized or perceived as having greater potential for corruption. Violations of any of these laws and regulations could result in fines and penalties, criminal sanctions against us or our employees, prohibitions on the conduct of our business and on our ability to offer our products and services in certain geographies, and significant harm to our business reputation. Our policies and procedures to promote compliance with these laws and regulations and to mitigate these risks may not protect us from all acts committed by our employees or third-party vendors, including contractors, agents and services partners or the misinterpretation or changing application of such laws. Additionally, the costs of complying with these laws (including the costs of investigations, auditing and monitoring) could adversely affect our current or future business. Our business, operations and financial results could also be adversely impacted by instability, disruption or destruction in a significant geographic region, including as a result of war, terrorism, riot, civil insurrection or social unrest; natural or man-made disasters; public health emergencies; or economic instability or weakness. For example, in February 2022, armed conflict escalated between Russia and Ukraine. The United States and certain other countries have imposed sanctions on Russia and could impose further sanctions, which could damage or disrupt international commerce and the global economy. We are complying with a broad range of U.S. and international sanctions and export control requirements imposed on Russia and, in March 2022, we announced our decision to suspend our business operations in Russia immediately. Although this decision did not materially impact our results of operations for fiscal 2022 due to the limited amount of business that we conducted in Russia historically, it is not possible to predict the broader or longer-term consequences of this conflict, which could include further sanctions, embargoes, regional instability, geopolitical shifts and adverse effects on macroeconomic conditions, security conditions, currency exchange rates and financial markets. Such geopolitical instability and uncertainty could have a negative impact on our ability to sell to, ship products to, collect payments from, and support customers in certain countries and regions based on trade restrictions, sanctions, embargoes and export control law restrictions, and logistics restrictions including closures of air space, and could increase the costs, risks and adverse impacts from supply chain and logistics challenges. The success of our international sales and operations will depend, in large part, on our ability to anticipate and manage these risks effectively. Our failure to manage any of these risks could harm our international 39 operations, reduce our international sales, and could give rise to liabilities, costs or other business difficulties that could adversely affect our operations and financial results. Efforts to increase our sales and capture market share in targeted international markets may be unsuccessful. Part of our business and growth strategy is to expand our geographic reach and increase market share in international markets through a combination of direct and indirect sales resources. We are also aggressively pursuing opportunities with service provider customers in additional geographies, including EMEA and APAC. This diversification of our markets and customer base has been a significant component of the growth of our business in recent years. Our efforts to continue to increase our sales and capture market share in international markets may ultimately be unsuccessful or may adversely impact our financial results, including our gross margin. Our failure to continue to increase our sales and market share in international markets could limit our growth and could harm our results of operations. We may be adversely affected by fluctuations in currency exchange rates. As a company with global operations, we face exposure to movements in foreign currency exchange rates. Due to our global presence, a portion of our revenue, operating expense and assets and liabilities are non-U.S. Dollar denominated and therefore subject to foreign currency fluctuation. We face exposure to currency exchange rates as a result of the growth in our non-U.S. Dollar denominated operating expense in Canada, Europe, Asia and Latin America. An increase in the value of the U.S. Dollar could increase the real cost to our customers of our products in those markets outside the United States where we sell in U.S. Dollars, and a weakened U.S. Dollar could increase the cost of local operating expenses and procurement of materials or service that we purchase in foreign currencies. From time to time, we hedge against currency exposure associated with anticipated foreign currency cash flows or assets and liabilities denominated in foreign currency. Such attempts to offset the impact of currency fluctuations are costly, and we cannot hedge against all foreign exchange rate volatility. Losses associated with these hedging instruments and the adverse effect of foreign currency exchange rate fluctuation may negatively affect our results of operations. Risks Related to Our Operations and Reliance on Third Parties We may experience delays in the development and production of our products that may negatively affect our competitive position and business. Our hardware and software networking solutions, including our WaveLogic modem technology and the components thereof, are based on complex technology, and we can experience unanticipated delays in developing, manufacturing and introducing these solutions to market. Delays in product development efforts by us or our supply chain may affect our reputation with customers, affect our ability to capture market opportunities and impact the timing and level of demand for our products. We are regularly introducing new products and enhancements and each step in their development cycle presents serious risks of failure, rework or delay, any one of which could adversely affect the cost-effectiveness and timely development of our products. We may encounter delays relating to engineering development activities and software, design, sourcing and manufacture of critical components, and the development of prototypes. The development of new technologies may increase the complexity of supply chain management or require the acquisition, licensing or interworking with the technology of third parties. In addition, intellectual property disputes, failure of critical design elements and other execution risks may delay or even prevent the release of these products. If we do not successfully develop or produce products in a timely manner, our competitive position may suffer, and our business, financial condition and results of operations could be harmed. 40 We rely on third-party contract manufacturers, and our business and results of operations may be adversely affected by risks associated with their businesses, financial condition and the geographies in which they operate. We rely on third-party contract manufacturers, including those with facilities in Canada, Mexico, Thailand, and the United States, to perform a substantial portion of our supply chain activities, including component sourcing, manufacturing, product testing and quality, and fulfillment and logistics relating to the distribution and support of our products. There are a number of risks associated with our dependence on contract manufacturers, including: • • • • • • • • • • reduced control over delivery schedules and planning; reliance on the quality assurance procedures of third parties; potential uncertainty regarding manufacturing yields and costs; availability of manufacturing capability and capacity, particularly during periods of high demand; risks and uncertainties associated with the locations or countries where our products are manufactured, including potential manufacturing disruptions caused by social, geopolitical, environmental or health factors, including pandemics or widespread health epidemics such as the COVID-19 pandemic; risks associated with data security breaches, interdiction or cyber-attacks targeting our third-party manufacturers, including manufacturing disruptions or unauthorized access to information; changes in law or policy governing tax, trade, manufacturing, development and investment in the countries where we currently manufacture our products, including the World Trade Organization Information Technology Agreement or other free trade agreements; inventory liability for excess and obsolete supply; limited warranties provided to us; and potential misappropriation of our intellectual property. For example, during the first half of fiscal 2022, we experienced third-party manufacturing disruptions that took production of certain of our products offline for periods of time, which adversely impacted our revenue. If our contract manufacturers are unable or unwilling to manufacture our products or components of our products, or if we experience a disruption in manufacturing, we may be required to identify and qualify alternative manufacturers, which could cause us to be delayed in or unable to meet our supply requirements to our customers. The process of qualifying a new contract manufacturer and commencing volume production is expensive and time-consuming, and if we are required to change or qualify a new contract manufacturer, we would likely experience significant business disruption and could lose revenue and damage our existing customer relationships. These and other risks could impair our ability to fulfill orders, harm our sales and impact our reputation with customers. See also the risk factor above entitled “The COVID-19 pandemic has impacted our business and results of operation and could have a material adverse effect on our business, results of operations and financial condition in the future” for additional factors related to COVID-19 and our third-party contract manufacturers that could adversely affect our business and financial results. Our reliance on third-party component suppliers, including sole and limited source suppliers, exposes our business to additional risk, including risk relating to our suppliers’ businesses and financial position and risks arising as a result of geopolitical events, and could limit our sales, increase our costs and harm our customer relationships. We maintain a global sourcing strategy and depend on a diverse set of third-party suppliers in international markets that comprise our supply chain. We rely on these third parties for activities relating to product design, development and support, and in the sourcing of products, components, subcomponents and related raw 41 materials. Our products include optical and electronic components for which reliable, high-volume supply is often available only from sole or limited sources. We do not have any guarantees of supply from our third-party suppliers, and in certain cases we have limited contractual arrangements or are relying on standard purchase orders. During fiscal 2022, delays and lower-than-expected deliveries from a small group of our suppliers of integrated circuit components that are essential for delivering finished products had a disproportionate, adverse impact on our results of operations. There is no assurance that we will be able to secure the components or subsystems that we require, in sufficient quantity and quality, and on reasonable terms. The loss of a source of supply, or lack of sufficient availability of key components, could require that we locate an alternate source or redesign our products, either of which could result in business interruption and increased costs. Increases in market demand or scarcity of raw materials or components have resulted, and may in the future result, in shortages in availability of important components for our solutions, supply allocation challenges, deployment delays and increased cost, lead times and delivery cycle timelines. There are a number of significant technology trends or developments underway or emerging – including the IoT, autonomous vehicles, and advances in mobile communications such as the emergence of 5G – that have previously resulted in, and we believe will continue to result in, increased market demand for key raw materials or components upon which we rely. A number of our key technology vendors rely upon sales to customers, including our competitors, in China for a material portion of their revenue. Recently, there have been a number of significant geopolitical events, including trade tensions and regulatory actions, involving the governments of the United States and China. In May 2019, the U.S. Department of Commerce amended the EAR by adding Huawei and certain affiliates to the “Entity List” for actions contrary to the national security and foreign policy interests of the United States, imposing significant new restrictions on export, reexport and transfer of U.S. regulated technologies and products to Huawei. In August 2020, the U.S. Department of Commerce added additional Huawei affiliates to the Entity List, confirmed the expiration of a temporary general license applicable to Huawei and amended the foreign direct product rule in a manner that represents a significant expansion of its application to Huawei. More recently, the U.S. Department of Commerce has expanded the scope of the EAR by amending the foreign direct product rule, resulting in more products made outside the United States becoming subject to the EAR for purposes of exports or transfers to certain countries and/or parties, which increases compliance risks and licensing obligations for companies dealing with such products. Several of our third-party component suppliers, including certain sole and limited source suppliers, sell products to Huawei and, in some cases, Huawei is a significant customer for such suppliers. At this time, there can be no assurance regarding the scope or duration of these restrictions, including the foreign direct product rule, or further actions imposed on Huawei and other companies located and operating in China, and any future impact on our suppliers. Any continued restriction on our suppliers’ ability to make sales to Huawei and other companies may adversely impact their businesses and financial position. In addition, China is in the midst of executing a five-year plan to improve China’s capabilities in the optoelectronics industry. There can be no assurance that this initiative, or similar efforts in China such as the Made in China 2025 initiatives (and actions taken by the U.S. government in response to such efforts), will not have an adverse impact on the business of our suppliers or our access to necessary components. These and similar industry, market and regulatory disruptions affecting our suppliers could, in turn, expose our business to loss or lack of supply or discontinuation of components that could result in lost revenue, additional product costs, increased lead times and deployment delays that could harm our business and customer relationships. Our business and results of operations would be negatively affected if we were to experience any significant disruption or difficulties with key suppliers affecting the price, quality, availability or timely delivery of required components. 42 We rely on third-party resellers and distribution partners to sell our solutions, and on third-party service partners for installation, maintenance and support functions, and our failure to develop and manage these relationships effectively could adversely affect our business, results of operations, and relationships with our customers. In order to sell into new markets, diversify our customer base and broaden the application for our solutions, and to complement our global field resources, we rely on a number of third-party resellers, distribution partners and sales agents, both domestic and international, and we believe that these relationships are an important part of our business. There can be no assurance that we will successfully identify and qualify these resources or that we will realize the expected benefits of these sales relationships. We also rely on a number of third-party service partners, both domestic and international, to complement our global service and support resources. We rely on these partners for certain installation, maintenance and support functions. In addition, as network operators increasingly seek to rely on vendors to perform additional services relating to the design, construction and operation of their networks, the scope of work performed by our support partners is likely to increase and may include areas where we have less experience providing or managing such services. We must successfully identify, assess, train and certify qualified service partners in order to ensure the proper installation, deployment and maintenance of our products, as well as to ensure the skillful performance of other services associated with expanded solutions offerings, including site assessment and construction-related services. Certain service partners may provide similar services for other companies, including our competitors. We may not be able to manage our relationships with our service partners effectively, and we cannot be certain that they will be able to deliver services in the manner or time required, that we will be able to maintain the continuity of their services, or that they will adhere to our approach to ethical business practices. We may also be exposed to a number of risks or challenges relating to the performance of our service partners, including: • • • • delays in recognizing revenue; liability for injuries to persons, damage to property or other claims relating to the actions or omissions of our service partners; our services revenue and gross margin may be adversely affected; and our relationships with customers could suffer. As our service offering expands and customers look to identify vendors capable of managing, integrating and optimizing multi-domain, multi-vendor networks with unified software, our relationships with third-party service partners will become increasingly important. We must also assess and certify or qualify third-party resellers, distribution partners, sales agents and service partners in order to ensure their understanding of and willingness and ability to adhere to our standards of conduct and business ethics. Vetting and certification of these resellers, agents and distribution and service partners can be costly and time-consuming. Certain resellers, agents and distribution and service partners may not have the same operational history, financial resources and scale that we have. If we do not effectively identify, develop and manage our relationships with third-party resellers, distribution partners, sales agents or service partners, or if they fail to perform services in the manner or time required, our financial results and relationships with customers could be adversely affected. We may also be held responsible or liable for the actions or omissions of these third parties. Actions, omissions or violations of law by our third-party sales partners or agents or service partners could have a material adverse effect on our business, operating results and financial condition. 43 We may be exposed to unanticipated risks and additional obligations in connection with our resale of complementary products or technology of other companies. We have entered into agreements with strategic supply partners that permit us to distribute their products or technology. We may rely on these relationships to add complementary products or technologies, to diversify our product portfolio, or to address a particular customer or geographic market. We may enter into additional OEM, resale or similar strategic arrangements in the future. We may incur unanticipated costs or difficulties relating to our resale of third-party products. Our third-party relationships could expose us to risks associated with the business, financial condition, intellectual property rights and supply chain continuity of such partners, as well as delays in their development, manufacturing or delivery of products or technology. We may also be required by customers to assume warranty, indemnity, service and other commercial obligations, including potential liability to customers, greater than the commitments, if any, made to us by our technology partners. Some of our strategic supply partners are relatively small companies with limited financial resources. If they are unable to satisfy their obligations to us or our customers, we may have to expend our own resources to satisfy these obligations. Exposure to these risks could harm our reputation with key customers and could negatively affect our business and our results of operations. Growth of our business is dependent on the proper functioning and scalability of our internal business processes and information systems. Adoption of new systems, modifications or interruptions of services may disrupt our business, processes and internal controls. We rely on a number of internal business processes and information systems to support key business functions, and the efficient operation of these processes and systems is critical to managing our business. Our business processes and information systems must be sufficiently scalable to support the growth of our business and may require modifications or upgrades that expose us to a number of operational risks. We continually pursue initiatives to transform and optimize our business operations through the reengineering of certain processes, investment in automation, and engagement of strategic partners or resources to assist with certain business functions. These changes require a significant investment of capital and human resources and may be costly and disruptive to our operations, and they could impose substantial demands on management time. These changes may also require changes in our information systems, modification of internal control procedures and significant training of employees or third-party resources. There can be no assurance that our business and operations will not experience disruption in connection with system upgrades or other initiatives. Even if we do not encounter these adverse effects or disruption in our business, the design and implementation of these new systems may be more costly than anticipated. Our IT systems, and those of third-party IT providers or business partners, may also be vulnerable to damage or disruption caused by circumstances beyond our control, including catastrophic events, power anomalies or outages, natural disasters (including as a result of climate change), cyber-security related incidents, and computer system or network failures. There can be no assurance that our business systems or those of our third-party business partners will not be subject to similar incidents, exposing us to significant cost, reputational harm and disruption or damage to our business. Restructuring activities could disrupt our business and affect our results of operations. We have taken steps, including reductions in force, office closures, and internal reorganizations to reduce the cost of our operations, improve efficiencies, or realign our organization and staffing to better match our market opportunities and our technology development initiatives. We may take similar steps in the future as we seek to realize operating synergies, to achieve our target operating model and profitability objectives, or to reflect more closely changes in the strategic direction of our business or the evolution of our site strategy and workplace. These changes could be disruptive to our business, including our research and development efforts, and could result in significant expense, including accounting charges for inventory and technology-related write- offs, workforce reduction costs and charges relating to consolidation of excess facilities. Substantial expense or 44 charges resulting from restructuring activities could adversely affect our results of operations and use of cash in those periods in which we undertake such actions. If we are unable to attract and retain qualified personnel, we may be unable to manage our business effectively. Our future success and ability to maintain a technology leadership position depends upon our ability to recruit and retain the services of executive, engineering, sales and marketing, and support personnel. Competition to attract and retain highly skilled technical, engineering and other personnel with experience in our industry is intense, and our employees have been the subject of targeted hiring by our competitors. Competition is particularly intense in certain jurisdictions where we have research and development centers, including the Silicon Valley area of northern California, and for engineering talent generally. The impact of the COVID-19 pandemic has resulted in higher employee costs, increased attrition and significant shifts in the labor market and employee expectations. We may experience difficulty retaining and motivating existing employees and attracting qualified personnel to fill key positions. In addition, labor shortages and employee mobility may make it more difficult to hire and retain employees. There can be no assurance that the programs, initiatives, rewards and recognition that are part of our annual “people strategy” will be successful in attracting and retaining the talent necessary to execute on our business plans. Because we rely on equity awards as a significant component of compensation, particularly for our executive team, a lack of positive performance in our stock price, reduced grant levels, or changes to our compensation program may adversely affect our ability to attract and retain key employees. In addition, none of our executive officers is bound by an employment agreement for any specific term. We have a number of workforce planning initiatives underway and our failure to manage these programs effectively could result in the loss of key personnel. Similarly, the failure to properly manage the necessary knowledge transfer required from these employee transitions could impact our ability to maintain industry and innovation leadership. If we are unable to attract and retain qualified personnel, we may be unable to manage our business effectively, and our operations and financial results could suffer. In addition, a number of our team members are foreign nationals who rely on visas or work-entry permits in order to legally work in the United States and other countries. Changes in government policy and global events such as pandemics may interfere with our ability to hire or retain personnel who require these visas or entry permits. For example, in response to the COVID-19 pandemic, numerous U.S. Embassies suspended or delayed the processing of new visa applications for a period of time during the pandemic due to COVID-19 related concerns impacting embassy operations and staffing. Additional changes in immigration policy, including the implementation of restrictive interpretations by the U.S. Citizenship and Immigration Services of regulatory requirements for H-1B, L-1 and other U.S. work visa categories, may also adversely affect our ability to hire or retain key talent, which could have an impact on our business operations. Risks Related to Intellectual Property, Litigation, Regulation and Government Policy Our intellectual property rights may be difficult and costly to enforce. We generally rely on a combination of patents, copyrights, trademarks and trade secret laws to establish and maintain proprietary rights in our products and technology. Although we have been issued numerous patents, and other patent applications are currently pending, there can be no assurance that any of these patents or other proprietary rights will not be challenged, invalidated or circumvented, or that our rights will provide us with any competitive advantage. In addition, there can be no assurance that patents will be issued for our pending applications or that claims allowed on any patents will be sufficiently broad to protect our technology. Further, the laws of some foreign countries may not protect our proprietary rights to the same extent as do the laws of the United States. We are subject to the risk that third parties may attempt to access, divert or use our intellectual property without authorization. We are also vulnerable to third parties who illegally distribute or sell counterfeit, stolen, or 45 unfit versions of our products, which could have a negative impact on our reputation and business. Protecting against the unauthorized use of our products, technology and other proprietary rights is difficult, time-consuming and expensive, and we cannot be certain that the steps that we are taking will detect, prevent or minimize the risks of such unauthorized use. In addition, our intellectual property strategy must continually evolve to protect our proprietary rights in new solutions, including our software solutions. Litigation may be necessary to enforce or defend our intellectual property rights or to determine the validity or scope of the proprietary rights of others. Such litigation could result in substantial cost and diversion of management time and resources, and there can be no assurance that we will obtain a successful result. Any inability to protect and enforce our intellectual property rights could harm our ability to compete effectively. We may incur significant costs in response to claims by others that we infringe their intellectual property rights. From time to time third parties may assert claims or initiate litigation or other proceedings related to patent, copyright, trademark and other intellectual property rights to technologies and related standards that are relevant to our business. We have been subject to several claims related to patent infringement, and we have been requested to indemnify customers pursuant to contractual indemnity obligations relating to infringement claims made by third parties. The rate of infringement assertions by patent assertion entities is increasing, particularly in the United States. Generally, these patent owners neither manufacture nor use the patented invention directly, and they seek to derive value from their ownership solely through royalties from patent licensing programs. We could be adversely affected by litigation, other proceedings or claims against us, as well as claims against our manufacturers, suppliers or customers, alleging infringement of third-party proprietary rights by our products and technology, or components thereof. Regardless of the merit of these claims, they can be time- consuming, divert the time and attention of our technical and management personnel, and result in costly litigation or otherwise require us to incur substantial costs, including legal fees. These claims, if successful, could require us to: • • • • • pay substantial damages or royalties; comply with an injunction or other court order that could prevent us from offering certain of our products; seek a license for the use of certain intellectual property, which may not be available on commercially reasonable terms or at all; develop non-infringing technology, which could require significant effort and expense and ultimately may not be successful; and indemnify our customers or other third parties pursuant to contractual obligations to hold them harmless or pay expenses or damages on their behalf. Any of these events could adversely affect our business, results of operations and financial condition. Our exposure to risks associated with the use of intellectual property may increase as a result of acquisitions, as we would have a lower level of visibility into the development process with respect to the acquired technology and the steps taken to safeguard against the risks of infringing the rights of third parties. Our products incorporate software and other technology under license from third parties, and our business would be adversely affected if this technology were no longer available to us on commercially reasonable terms. We integrate third-party software and other technology into our operating system, network management, and intelligent automation software and other products. As a result, we may be required to license certain software or technology from third parties, including competitors. Licenses for software or other technology may 46 not be available or may not continue to be available to us on commercially reasonable terms. Failure to obtain or maintain such licenses or other third-party intellectual property rights could affect our development efforts and market opportunities, or could require us to re-engineer our products or to obtain alternate technologies. Third- party licensors may insist on unreasonable financial or other terms in connection with our use of such technology. Our failure to comply with the terms of any license may result in our inability to continue to use such license, which may result in significant costs, harm our market opportunities and require us to obtain or develop a substitute technology. Some of our solutions, including our operating system software, Platform Software, and Blue Planet Automation Software, utilize elements of open source or publicly available software. As network operators seek to enhance programmability and automation of networks, we expect that we and other communications networking solutions vendors will increasingly contribute to and use technology or open source software developed by standards settings bodies or other industry forums that seek to promote the integration of network layers and functions. The terms of such licenses could be construed in a manner that could impose unanticipated conditions or restrictions on our ability to commercialize our products. This increases our risks associated with our use of such software and may require us to seek licenses from third parties, to re-engineer our products or to discontinue the sale of such solutions. Difficulty obtaining and maintaining technology licenses with third parties may disrupt development of our products, increase our costs and adversely affect our business. Data security breaches and cyber-attacks could compromise our intellectual property or other sensitive information and cause significant damage to our business, reputation and operational capacity. In the ordinary course of our business, we maintain on our network systems, and on the networks of our third-party providers, certain information that is confidential, regulated, proprietary or otherwise sensitive in nature. This information includes intellectual property, personal data, financial information and confidential business information relating to us and our employees, customers, suppliers and other business partners. Companies in the technology industry, and in particular in the telecommunications industry, have been increasingly subjected to a wide variety of security incidents, cyber-attacks and other attempts to gain unauthorized access to networks or sensitive information. Our network systems, devices, storage and other business applications, and the systems, storage and other business applications maintained by our third-party providers, have been in the past, and may be in the future, subjected to attempts to gain unauthorized access to our networks, devices, applications or information, malfeasance or other system disruptions. In some cases, it is difficult to anticipate or to detect immediately such incidents and the damage caused thereby. If an actual or perceived breach of security occurs in our network or any of our third-party providers’ networks, we could incur significant costs, our operations could be impacted, our customers and other stakeholders could be impacted, and our reputation could be harmed. In addition, the internet has experienced an increase in cyber threats during the COVID-19 pandemic in the form of phishing emails, malware attachments and malicious websites. These risks, as well as the number and frequency of cybersecurity events globally, may also be heightened during times of geopolitical tension or instability between countries, including, for example, the ongoing military conflict between Russia and Ukraine. While we work to safeguard our internal network systems and validate the security of our third-party providers to mitigate these potential risks, including through information security policies and employee awareness and training, there is no assurance that such actions will be sufficient to prevent future cyber-attacks or security breaches. We have been subjected in the past, and expect to be subjected in the future, to a range of incidents including phishing, emails purporting to come from a company executive or vendor seeking payment requests, malware, and communications from look-alike corporate domains, as well as security-related risks created by the use of third-party software and services. We may also be subject in the future to ransomware attacks, nation-state cyber attacks or other types of cyber attacks. While these types of incidents to which we have been subjected have not had a material effect on our business or our network security to date, future incidents could compromise confidential or otherwise protected information, destroy or corrupt data, or otherwise disrupt our operations or impact our customers or other stakeholders. These security events could also 47 negatively impact our reputation and our competitive position and could result in litigation with third parties, regulatory action, loss of business, potential liability and increased remediation costs, any of which could have a material adverse effect on our financial condition and results of operations. We are a party to legal proceedings, investigations and other claims or disputes, which are costly to defend and, if determined adversely to us, could require us to pay fines or damages, undertake remedial measures, or prevent us from taking certain actions, any of which could adversely affect our business. In the course of our business, we are, and in the future may be, a party to legal proceedings, investigations and other claims or disputes, which have related and may relate to subjects including commercial transactions, intellectual property, securities, employee relations, or compliance with applicable laws and regulations. Legal proceedings and investigations are inherently uncertain and we cannot predict their duration, scope, outcome or consequences. There can be no assurance that these or any such matters that have been or may in the future be brought against us will be resolved favorably. In connection with any government investigations, in the event the government takes action against us or the parties resolve or settle the matter, we may be required to pay substantial fines or civil and criminal penalties and/or be subject to equitable remedies, including disgorgement or injunctive relief. Other legal or regulatory proceedings, including lawsuits filed by private litigants, may also follow as a consequence. These matters are likely to be expensive and time-consuming to defend, settle and/or resolve, and may require us to implement certain remedial measures that could prove costly or disruptive to our business and operations. They may also cause damage to our business reputation. The unfavorable resolution of one or more of these matters could have a material adverse effect on our business, results of operations, financial condition or cash flows. Changes in trade policy, including the imposition of tariffs, increased export control and investment restrictions, and efforts to withdraw from or materially modify international trade agreements, as well as other regulatory efforts impacting the import and sale of foreign equipment, may adversely affect our business, operations and financial condition. The United States and various foreign governments have established certain trade and tariff requirements under which we have implemented a global approach to the sourcing and manufacture of our products, as well as distribution and fulfillment to customers around the world. In recent years, the U.S. government has indicated a willingness to revise, renegotiate, or terminate various existing multilateral trade agreements and to impose new taxes and restrictions on certain goods imported into the U.S. Because we rely on a global sourcing strategy and third-party contract manufacturers in markets outside of the U.S. to perform substantially all of the manufacturing of our products, such steps, if adopted, could adversely impact our business and operations, increase our costs, and make our products less competitive in the U.S. and other markets. For example, our supply chain includes certain direct and indirect suppliers based in China who supply goods to us, our manufacturers or our third-party suppliers. Recently, there have been a number of significant geopolitical events, including trade tensions and regulatory actions, involving the governments of the United States and China. The U.S. government has raised tariffs, and imposed new tariffs, on a wide range of imports of Chinese products, including component elements of our solutions and certain finished goods products that we sell. U.S. tariff policy involving imports from China are slated for a broad review in 2023. The U.S. government has also introduced broad new restrictions on imports from China allegedly manufactured with forced labor, and the EU has debated similar restrictions. China has retaliated by raising tariffs, and imposing new tariffs, on certain exports of U.S. goods to China, as well as introducing blocking measures to restrict the ability of domestic companies to comply with U.S. trade restrictions. In May 2020, the U.S. introduced significant further restrictions limiting access to controlled U.S. technology to additional Chinese government and commercial entities, including certain of our competitors based in China. In August 2020, the U.S. Department of Commerce took further action against Huawei by adding additional Huawei affiliates to the Entity List, confirming the expiration of a temporary general license applicable to Huawei and amending the foreign direct product rule in a manner that represents a significant expansion of its application to Huawei. More recently, in October 2022, the 48 U.S. Department of Commerce imposed additional export control restrictions targeting the provision of, inter alia, certain semiconductors and related technology to China that could further disrupt supply chains that could adversely impact our business. In addition, the U.S. Federal Communications Commission (the “FCC”) in November 2022 prohibited communications equipment deemed to pose an unacceptable risk to national security from obtaining the equipment authorization that allows the products to be imported, marketed, or sold in the U.S. This prohibition currently includes telecommunications equipment produced by Huawei and its affiliates and subsidiaries and four other Chinese companies, and additional entities may be subsequently added to this list. The situation involving U.S.-China trade relations remains volatile and uncertain and there can be no assurance that further actions by either country will not have an adverse impact on our business, operations and access to technology, or components thereof, sourced from China. At this time, it remains unclear what additional actions, if any, will be taken by the U.S. or other governments with respect to international trade agreements, the imposition of tariffs on goods imported into the U.S., tax policy related to international commerce, increased export control and investment restrictions, import or use of foreign communications equipment, or other trade matters. Based on our manufacturing practices and locations, there can be no assurance that any future executive or legislative action in the United States or other countries relating to tax policy and trade regulation would not adversely affect our business, operations and financial results. Government regulation of usage, import or export of our products, or our technology within our products, changes in that regulation, or our failure to obtain required approvals for our products, could harm our international and domestic sales and adversely affect our revenue and costs of sales. Failure to comply with such regulations could result in enforcement actions, fines, penalties or restrictions on export privileges. In addition, costly tariffs on our equipment, restrictions on importation, trade protection measures and domestic preference requirements of certain countries could limit our access to these markets and harm our sales. These regulations could adversely affect the sale or use of our products, substantially increase our cost of sales and adversely affect our business and revenue. Changes in government regulations affecting the communications and technology industries and the businesses of our customers could harm our prospects and operating results. The FCC has jurisdiction over many companies in the U.S. telecommunications industry, and similar agencies have jurisdiction over the communications industries in other countries. Many of our largest customers, including service providers and cable and multiservice network operators, are subject to the rules and regulations of these agencies, while others participate in and benefit from government-funded programs that encourage the development of network infrastructures. These regulatory requirements and funding programs are subject to changes that may adversely impact our customers, with resulting adverse impacts on our business. In December 2017, the FCC deregulated broadband internet access service providers and removed their classification as telecommunications service providers under Title II of the Communications Act. This decision, which was partially upheld in an October 2020 decision by the U.S. Court of Appeals for the District of Columbia Circuit, repeals net neutrality regulations that prohibit blocking, degrading or prioritizing certain types of internet traffic and restores the light touch regulatory treatment of broadband service in place prior to 2015. Although the FCC’s initial decision has preempted state jurisdiction on net neutrality, the U.S. Court of Appeals decision vacated the specific preemption provision in the 2017 order. A number of states have taken executive action directed at reinstating aspects of the FCC’s 2015 order. California, among other states, has passed legislation that seeks to reestablish net neutrality. The current FCC is expected to initiate a rulemaking to reclassify broadband internet access service as a Title II telecommunications service, with additional net neutrality obligations. Changes in regulatory requirements or uncertainty associated with the regulatory environment could delay or serve as a disincentive to investment in network infrastructures by network operators, which could adversely affect the sale of our products 49 and services. Similarly, changes in regulatory tariff requirements or other regulations relating to pricing or terms of carriage on communications networks could slow the development or expansion of network infrastructures and adversely affect our business, operating results, and financial condition. Separately, certain of our Web-scale customers have been the subject of regulatory and other government actions, including inquiries and investigations, formal or informal, by competition authorities in the United States, Europe and other jurisdictions. In July 2019, the U.S. Department of Justice announced that it would commence an antitrust review into significant online technology platforms, and in September 2019, various state attorneys general announced antitrust investigations involving certain technology companies. In addition, certain committees of the U.S. Congress have recently held hearings and pursued investigations to consider the businesses associated with these platforms, their impact on competition, and their conduct. There can be no assurance that these government actions will not adversely impact the network spending, procurement strategies, or business practices of our Web-scale customers in a manner adverse to us. The effects of the United Kingdom’s withdrawal from membership in the European Union remain uncertain. In January 2020, the UK formally withdrew from the EU in an action commonly known as Brexit. It remains possible that the level of economic activity in this region will be adversely impacted by Brexit and that there will be increased regulatory and legal complexities, including those relating to tax, trade, security and employees. Such changes could be costly and potentially disruptive to our operations and business relationships in these markets. Economic uncertainty related to Brexit, including volatility in global stock markets and currency exchange rates, could adversely impact our business. While we have adopted certain operational and financial measures to reduce the risks of doing business internationally, we cannot ensure that such measures will be adequate to allow us to operate without disruption or adverse impact to our business and financial results in the affected regions. Government regulations related to the environment, climate change and social initiatives could adversely affect our business and operating results. Our operations are regulated under various federal, state, local and international laws relating to the environment and climate change. If we were to violate or become liable under these laws or regulations, we could incur fines, costs related to damage to property or personal injury and costs related to investigation or remediation activities. Our product design efforts and the manufacturing of our products are also subject to evolving requirements relating to the presence of certain materials or substances in our equipment, including regulations that make producers for such products financially responsible for the collection, treatment and recycling of certain products. For example, our operations and financial results may be negatively affected by environmental regulations, such as the WEEE and RoHS regulations that have been adopted by the EU. Compliance with these and similar environmental regulations may increase our cost of designing, manufacturing, selling and removing our products. The SEC requires disclosure regarding the use of “conflict minerals” mined from the Democratic Republic of the Congo and adjoining countries (the “DRC”) and disclosure with respect to procedures regarding a manufacturer’s efforts to prevent the sourcing of such minerals from the DRC. Certain of these minerals are present in our products. SEC rules implementing these requirements may have the effect of reducing the pool of suppliers that can supply “conflict free” components and parts, and we may not be able to obtain conflict free products or supplies in sufficient quantities for our operations. Because our supply chain is complex, we may face reputational challenges with our customers, stockholders and other stakeholders if we are unable to verify sufficiently the origins for the “conflict minerals” used in our products and cannot assert that our products are “conflict free.” Environmental or similar social initiatives may also make it difficult to obtain supply of compliant components or may require us to write off non-compliant inventory, which could have an adverse effect on our business and operating results. 50 Changes in tax law or regulation, effective tax rates and other adverse outcomes with taxing authorities could adversely affect our results of operations. Our future effective tax rates could be subject to volatility or adversely affected by changes in tax laws, regulations, accounting principles, or interpretations thereof. The impact of income taxes on our business can also be affected by a number of items relating to our business. These may include estimates for and the actual geographic mix of our earnings; changes in the valuation of our deferred tax assets; the use or expiration of net operating losses or research and development credit arrangements applicable to us in certain geographies; and changes in our methodology for transfer pricing, valuing developed technology or conducting intercompany arrangements. In August 2022, the Inflation Reduction Act was signed into law, which made a number of changes to the Internal Revenue Code, including adding a 1% excise tax on stock buybacks by publicly traded corporations and a 15% corporate minimum tax on adjusted financial statement income of certain large companies. The impact of these provisions on our effective tax rate will also depend on additional guidance to be issued by the Secretary of the U.S. Department of the Treasury. We are currently evaluating the impact of these provisions on our effective tax rate. Further, the Tax Act amended the Internal Revenue Code to require that specific research and experimental (“R&E”) expenditures be capitalized and amortized over five years (U.S. R&E) or fifteen years (non-U.S. R&E) beginning in the Company’s fiscal 2023. Although the U.S. Congress has considered legislation that would defer, modify, or repeal the capitalization and amortization requirement, there is no assurance that the provision will be deferred, repealed, or otherwise modified. If the requirement is not repealed or otherwise modified, it may increase our cash taxes and effective tax rate. Additionally, the Organization for Economic Co-operation and Development (the “OECD”), an international association comprised of 38 countries, including the United States, has issued proposals that change long-standing tax principles including on a global minimum tax initiative. On December 12, 2022 the European Union member states agreed to implement the OECD’s Pillar 2 global corporate minimum tax rate of 15% on companies with revenues of at least $790 million, which would go into effect in 2024. Other countries including the United Kingdom, Switzerland, Canada, Australia and South Korea are also actively considering changes to their tax laws to adopt certain parts of the OECD’s proposals. We are also subject to the continuous examination of our income and other tax returns by the Internal Revenue Service and other tax authorities globally, and we have a number of such reviews underway at any time. It is possible that tax authorities may disagree with certain positions we have taken and an adverse outcome of such a review or audit could have a negative effect on our financial position and operating results. There can be no assurance that the outcomes from such examinations, or changes in tax law or regulation impacting our effective tax rates, will not have an adverse effect on our business, financial condition and results of operations. Failure to maintain effective internal controls over financial reporting could have a material adverse effect on our business, operating results and stock price. Section 404 of the Sarbanes-Oxley Act of 2002 requires that we include in our annual report a report containing management’s assessment of the effectiveness of our internal controls over financial reporting as of the end of our fiscal year and a statement as to whether or not such internal controls are effective. Compliance with these requirements has resulted in, and is likely to continue to result in, significant costs and the commitment of time and operational resources. Certain ongoing initiatives, including efforts to transform business processes or to transition certain functions to third-party resources or providers, will necessitate modifications to our internal control systems, processes and related information systems as we optimize our business and operations. Our expansion into new regions could pose further challenges to our internal control systems. We cannot be certain that our current design for internal control over financial reporting, or any additional changes to be made, will be sufficient to enable management to determine that our internal controls are effective for any period, or on an ongoing basis. If we are unable to assert that our internal controls over financial reporting are effective, market perception of our financial condition and the trading price of our stock may be adversely affected, and customer perception of our business may suffer. 51 Risks Related to Our Common Stock, Indebtedness and Investments Our stock price is volatile. Our common stock price has experienced substantial volatility in the past and may remain volatile in the future. Volatility in our stock price can arise as a result of a number of the factors discussed in this “Risk Factors” section. During fiscal 2022, our closing stock price ranged from a high of $77.60 per share to a low of $39.16 per share. The stock market has experienced significant price and volume fluctuation that has affected the market price of many technology companies, with such volatility often unrelated to the operating performance of these companies. Divergence between our actual results and our forward-looking guidance for such results, the published expectations of investment analysts, or the expectations of the market generally, can cause significant swings in our stock price. Our stock price can also be affected by market conditions in our industry as well as announcements that we, our competitors, vendors or our customers may make. These may include announcements by us or our competitors of financial results or changes in estimated financial results, technological innovations, the gain or loss of customers, or other strategic initiatives. Our common stock is also included in certain market indices, and any change in the composition of these indices to exclude our company would adversely affect our stock price. In addition, if the market for technology stocks or the broader stock market continues to experience a loss of investor confidence, the trading price of our common stock could decline for reasons unrelated to our business, financial condition or results of operations. These and other factors affecting macroeconomic conditions or financial markets may materially adversely affect the market price of our common stock in the future. Outstanding indebtedness under our senior secured credit facilities and senior unsecured notes may adversely affect our liquidity and results of operations and could limit our business. We are a party to credit agreements relating to a $300.0 million senior secured asset-based revolving credit facility, an outstanding senior secured term loan with approximately $675.7 million due 2025 and an outstanding senior unsecured indenture pursuant to which we issued $400.0 million in aggregate principal amount of 4.00% senior notes due 2030 (the “2030 Notes”). The agreements governing these credit facilities contain certain covenants that limit our ability, among other things, to incur additional debt, create liens and encumbrances, pay cash dividends, redeem or repurchase stock, enter into certain acquisition transactions or transactions with affiliates, repay certain indebtedness, make investments, or dispose of assets. The agreements also include customary remedies, including the right of the lenders to take action with respect to the collateral securing the loans, that would apply should we default or otherwise be unable to satisfy our debt obligations. Our indebtedness could have important negative consequences, including: • • • • • increasing our vulnerability to adverse economic and industry conditions; limiting our ability to obtain additional financing, particularly in unfavorable capital and credit market conditions; debt service and repayment obligations that may adversely impact our results of operations and reduce the availability of cash resources for other business purposes; limiting our flexibility in planning for, or reacting to, changes in our business and the markets; and placing us at a possible competitive disadvantage to competitors that have better access to capital resources. We may also enter into additional debt transactions or credit facilities, including equipment loans, working capital lines of credit, senior notes and other long-term debt, which may increase our indebtedness and result in additional restrictions on our business. In addition, major debt rating agencies regularly evaluate our debt based on a number of factors. There can be no assurance that we will be able to maintain our existing debt ratings, and failure to do so could adversely affect our cost of funds, liquidity and access to capital markets. 52 Significant volatility and uncertainty in the capital markets may limit our access to funding on favorable terms or at all. The operation of our business requires significant capital. We have accessed the capital markets in the past and have successfully raised funds, including through the issuance of equity, convertible notes and other indebtedness, to increase our cash position, support our operations and undertake strategic growth initiatives. We regularly evaluate our liquidity position, debt obligations and anticipated cash needs to fund our long-term operating plans, and we may consider it necessary or advisable to raise additional capital or incur additional indebtedness in the future. If we raise additional funds through further issuance of equity or securities convertible into equity, or undertake certain transactions intended to address our existing indebtedness, our existing stockholders could suffer dilution in their percentage ownership of our company, or our leverage and outstanding indebtedness could increase. Current capital market conditions, including the impact of inflation, have increased borrowing rates and can be expected to significantly increase our cost of capital as compared to prior periods should we seek additional funding. Moreover, global capital markets have undergone periods of significant volatility and uncertainty in the past, and there can be no assurance that such financing alternatives will be available to us on favorable terms or at all, should we determine it necessary or advisable to seek additional capital. 53 Item 1B. Unresolved Staff Comments Not applicable. Item 2. Properties Overview. As of October 29, 2022, all of our properties are leased, and we do not own any real property. We lease facilities globally related to the ongoing operations of our business segments and related functions. Our corporate headquarters are located in one building in Hanover, Maryland. Our largest facilities are our research and development centers located in Ottawa, Canada and Gurgaon, India. We also have engineering facilities located in San Jose, California; Alpharetta, Georgia; Quebec, Canada; and Pune and Bangalore, India. In addition, we lease various smaller offices in the United States, Canada, Mexico, South America, Europe, the Middle East and the Asia Pacific region to support our sales and services operations. We believe the facilities we are now using are adequate and suitable for our business requirements. Hanover, Maryland Headquarters Lease. We entered into an agreement dated November 3, 2011, with W2007 RDG Realty, L.L.C. relating to a 15-year lease of office space for our corporate headquarters in Hanover, Maryland, consisting of an agreed-upon rentable area of approximately 105,000 square feet. Ottawa Leases. On October 23, 2014, Ciena Canada, Inc. entered into an 18-year lease agreement for the office building located at 5050 Innovation Drive, Ottawa, Canada, consisting of a rentable area of approximately 170,000 square feet. In addition, on April 15, 2015, Ciena Canada, Inc. entered into a 15-year lease agreement for two new office buildings adjacent to the building at 5050 Innovation Drive, located at 383 and 385 Terry Fox Drive, Ottawa, Canada, consisting of a rentable area of approximately 255,000 square feet. Gurgaon Leases. On August 13, 2020, Ciena India Pvt. Ltd. extended our rental agreement for five years for an office building located at Plot No. 13, Echelon Institutional Sector 32, Gurgaon, which is adjacent to another building rented by Ciena India Pvt. Ltd., located at Plot No. 14, Echelon Institutional Sector 32, Gurgaon. The Gurgaon offices consist of a rentable area of approximately 282,000 square feet. For additional information regarding our lease obligations, see Note 18 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report. Item 3. Legal Proceedings The information set forth under the heading “Litigation” in Note 27 to our Consolidated Financial Statements included in Item 8 of Part II of this report, is incorporated herein by reference. Item 4. Mine Safety Disclosures Not applicable. 54 PART II Item 5. Market for Registrant’s Common Stock, Related Stockholder Matters and Issuer Purchases of Equity Securities (a) Our common stock is traded on the New York Stock Exchange under the stock symbol “CIEN.” As of December 9, 2022, there were approximately 712 holders of record of our common stock and 148,415,009 shares of common stock outstanding. We have never paid cash dividends on our capital stock. We currently intend to retain earnings for use in our business, and we do not anticipate paying any cash dividends in the foreseeable future. Issuer Purchases of Equity Securities The following table provides a summary of repurchases of our common stock during the fourth quarter of fiscal 2022: Total Number of Shares Purchased (1) Average Price Paid Per Share Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (1) Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (in Thousands) Period July 31, 2022 to August 27, 2022 August 28, 2022 to September 24, 2022 September 25, 2022 to October 29, 2022 154,247 $51.91 154,247 — — $ — $ — $51.91 — — 154,247 $500,000 $500,000 $500,000 Total 154,247 (1) On December 9, 2021, we announced that our Board of Directors had authorized a program to repurchase up to $1.0 billion of our common stock, which replaced in its entirety our previous stock repurchase program. During the fourth quarter of fiscal 2022, we repurchased $8.0 million of our common stock under the stock repurchase program, and we had $500.0 million remaining under the current repurchase authorization as of October 29, 2022. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations- Liquidity and Capital Resources—Stock Repurchase Authorization” in Item 7 of Part II of this report and Notes 22 to our Consolidated Financial Statements included in Item 8 of Part II of this report for information regarding the stock repurchase programs authorized by our Board of Directors. Stock Performance Graph The following graph shows a comparison of cumulative total returns for an investment in our common stock, the S&P North American Technology-Multimedia Networking Index and the Russell 1000 from October 28, 2017 to October 29, 2022. The Russell 1000 index comprises the stocks representing the 1,000 largest publicly traded American companies as measured by market capitalization. The S&P North American Technology-Multimedia Networking Index comprises stocks in the S&P Total Market Index that are classified under the Global Industry Classification Standard communications equipment sub-industry. This graph is not deemed to be “soliciting material” or “filed” with the SEC or subject to the liabilities of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the graph shall not be deemed to be 55 incorporated by reference into any prior or subsequent filing by us under the Securities Act of 1933, as amended, or the Exchange Act. Assumes $100 invested in Ciena Corporation, the Russell 1000 and the S&P North American Technology- Multimedia Networking Index, respectively, on October 28, 2017 with all dividends reinvested at month-end. (b) Not applicable. (c) Not applicable. Item 6. [Reserved] Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations The following discussion and analysis should be read in conjunction with our consolidated financial statements and notes thereto included elsewhere in this annual report. Overview We are a networking systems, services and software company, providing solutions that enable a wide range of network operators to deploy and manage next-generation networks that deliver services to businesses and consumers. We provide hardware, software and services that support the delivery of video, data and voice traffic over core, metro, aggregation and access communications networks. Our solutions are used globally by communications service providers, cable and multiservice operators, Web-scale providers, submarine network operators, governments, and enterprises across multiple industry verticals. Our portfolio is designed to enable the Adaptive Network, which is our vision for a network end state that leverages a programmable and scalable network infrastructure, driven by software control and automation capabilities, that are informed by analytics and intelligence. By transforming network infrastructures into dynamic, programmable environments driven by automation and analytics, network operators can realize greater business agility, dynamically adapt to changing end-user service demands and rapidly introduce new revenue- generating services. They can also gain valuable real-time network insights, allowing them to optimize network performance and maximize the return on their network infrastructure investment. Our solutions include Networking Platforms, including our Converged Packet Optical and Routing and Switching portfolios, which can be applied from the network core to end-user access points, and which allow 56 network operators to scale capacity, increase transmission speeds, allocate traffic efficiently and adapt dynamically to changing end-user service demands. Our Converged Packet Optical portfolio includes products that support long haul and regional networks, submarine and data center interconnect networks, and metro and edge networks. Our Routing and Switching portfolio includes products and solutions that enable efficient IP transport in next-generation metro edge, access and aggregation networks. To complement our Networking Platforms, we offer Platform Software, which includes our MCP applications that deliver advanced multi-layer domain control and operations. Through our Blue Planet Software we also enable complete service lifecycle management automation with productized OSS and service assurance solutions that help our customers to achieve closed loop automation across multi-vendor and multi-domain environments. In addition to our systems and software, we also offer a broad range of services that help our customers build, operate and improve their networks and associated operational environments. These include network transformation, consulting, implementation, systems integration, maintenance, NOC management, learning, and optimization services. Demand Environment Since the second quarter of fiscal 2021, we have experienced unprecedented demand for our products and services. Our quarterly order volumes during this period have significantly exceeded our revenue and historical order volumes, with some concentration of orders among certain existing Webscale and North America-based service provider customers. We believe that we are benefiting from certain shifts in business and consumer behaviors, in part accelerated by the COVID-19 pandemic, that represent positive, long-term trends for our business. These include 5G, enterprise and consumer cloud network adoption, increasing demands on the network edge, and network operator focus on resilience and automation. We believe some portion of these orders also reflects customer acceleration of future orders due to lengthened lead times or the implementation of security of supply strategies to address the supply constraints described below. As a result, our backlog has grown from $2.2 billion at the end of fiscal 2021 to $4.2 billion at the end of fiscal 2022. However, our order growth relative to revenue has begun to moderate from the first half of fiscal 2022 and we expect it to continue to moderate over time. As a result, our backlog should not necessarily be viewed as an accurate indicator of revenue for any particular period. See “Risk Factors” in Item 1A of Part I of this report for further discussion of risks related to the demand environment. Supply Chain Constraints In the face of extraordinary demand across a range of industries, global supply for certain raw materials and components, including, in particular, semiconductor, integrated circuits and other electronic components used in most of our products, has experienced substantial constraint and disruption in recent periods. As a result, we have experienced significant component shortages, extended lead times, increased costs, and unexpected cancellation or delay of previously committed supply of key components across our supplier base. Beginning in the second half of fiscal 2021, we started placing significant, advanced orders for supply of certain long lead time components to address our expected customer demand for fiscal 2022 and the then-emerging supply chain challenges. Since that time, we have continued to extend the duration of our purchase commitments, or placed non-cancellable, advanced orders with or through suppliers, particularly for long lead time components. As of October 29, 2022, we had $2.6 billion in outstanding purchase order commitments to our contract manufacturers and component suppliers for inventory. During the second half of fiscal 2022, reliability of supply improved gradually, and the majority of our suppliers were able to deliver components by their promised, though in many cases, extended, lead times. However, we continued to experience substantial delays and lower-than-expected component deliveries from a small group of our suppliers of integrated circuit components that represent a small fraction of our overall 57 materials, but which are essential for delivering finished products. Although we benefited from some favorable supply chain developments during the fourth quarter of fiscal 2022, including receiving more integrated circuits than expected, as well as our investment in expanded manufacturing capacity described below, ongoing supply constraints and the unpredictable performance of our supply chain adversely impacted our ability to meet customer demand and our level of revenue and growth in fiscal 2022, in particular for our Converged Packet Optical products. At the same time, increased supply chain costs, including purchase price increases, supply premiums, expediting fees and freight and logistics, adversely impacted our gross margin and profitability in fiscal 2022. We expect these constrained supply conditions to increase our costs of goods sold in the near term and to adversely impact our ability to continue to reduce the cost to produce our products in a manner consistent with prior periods. We believe these supply chain challenges will continue at least through fiscal 2023 and expect that the extended lead times and elevated supply chain costs we have experienced will persist for the reasonably foreseeable future. It is unclear when the supply environment will become less volatile and what impacts the supply environment will have on our business and results of operations in future periods. To mitigate the impact of these supply conditions on our business and customers, in addition to placing advance orders for inventory, we have been expanding our manufacturing capacity and accumulating components that are in available supply, in some cases with expanded lead times. We believe that this approach positions us to produce finished goods more quickly when supply constraints ease for those components for which delivery continues to be delayed. As a result of this strategy, our inventory has increased from $374.3 million at the end of fiscal 2021 to $946.7 million at the end of fiscal 2022. We have also implemented additional mitigation strategies, including multi-sourcing activities, qualifying alternative parts, and product redesign, and expect, over time, to realize certain benefits of these mitigation activities. Together with increased costs of supply, these mitigation strategies have impacted, and can be expected to continue to impact, our result of operations and cash from operations. See “Risk Factors” in Item 1A of Part I of this report for further discussion of risks related to our supply chain, inventory and our mitigation activities. Impact of Global Events on our Business and Operations COVID-19 Pandemic. The impact of the COVID-19 pandemic and of countermeasures taken to contain its spread remain dynamic. We continue to monitor the situation and actively assess further implications for our business, supply chain, fulfillment operations and customer demand. For example, we gradually reopened a significant number of our offices globally during fiscal 2022. We continue to take meaningful precautions in accordance with relevant guidelines to protect the health and safety of our employees. Variants continue to emerge, efforts to mitigate or contain the impacts of the pandemic continue to evolve, and the duration and severity of the impact of the pandemic on our business and results of operations in future periods remain uncertain. The COVID-19 pandemic and related countermeasures have previously impacted our operations and disrupted the manufacturing operations of our supply chain business partners. If the COVID-19 pandemic or its adverse effects, including the effects of extended government-mandated lockdowns in several cities in China, become more severe or prevalent or are prolonged in the locations where we, our customers, suppliers or manufacturers conduct business, our business and results of operations could be adversely impacted. If we experience more pronounced, COVID-19 related disruptions in our business or operations, or in economic activity and demand for our products and services generally, our business and results of operations in future periods could be materially adversely affected. Russia and Ukraine Conflict. In February 2022, armed conflict escalated between Russia and Ukraine. The United States and certain other countries have imposed sanctions on Russia and could impose further sanctions, which could damage or disrupt international commerce and the global economy. We are complying with a broad range of United States and international sanctions and export control requirements imposed on Russia and, on March 7, 2022, we announced our decision to suspend our business operations in Russia immediately. Due to the limited amount of business that we have conducted in Russia historically, this decision did not materially impact our results of operations for fiscal 2022 and we do not expect it to materially impact our results of operations going forward. See Note 5 to our Consolidated Financial Statements included in Item 8 of Part II of this report for more information on the impact of suspending our business operations in Russia. 58 Market Opportunity The market in which we sell our communications networking solutions is dynamic and characterized by a high rate of change, including rapid growth in bandwidth demand and network traffic, the proliferation of cloud- based services and new approaches, or “consumption models,” for designing and procuring networking solutions. Emerging services and applications, including 5G mobile communications, fiber-based access networks and the Internet of Things, are further impacting or expected to impact wireline network infrastructures, particularly at the edge of networks, where increased capacity, computing power and automation are required to provide the quality of experience demanded by end users. Many network operators are under pressure to constrain their capital expenditure budgets, as they cannot grow their network spending at the rate of bandwidth growth. To address these growing service demands and manage network cost, many network operators are looking to adopt next-generation infrastructures that are more programmable and better capable of leveraging data for network insight, analytics and automation. Other network operators are pursuing a diverse range of consumption models in their design and procurement of network infrastructure solutions. Our Adaptive Network vision and our business strategy to capitalize on these changing market dynamics include the initiatives set forth in the “Strategy” section of the description of our business in Item 1 of Part I of this annual report. Strategic and Financial Initiatives Strategic Acquisitions. During fiscal 2022, we acquired AT&T’s Vyatta virtual routing and switching technology, which is intended to expand and accelerate our Adaptive IP solutions and address the growing market opportunity to transform the network edge, including 5G networks and cloud environments. During fiscal 2022, we also acquired Xelic, a provider and developer of FPGA and ASIC technology and optical networking IP cores, to enhance development of our WaveLogic coherent modem technology. See Note 4 to our Consolidated Financial Statements included in Item 8 of Part II of this report for more information on these acquisitions and the related accounting. During the first quarter of fiscal 2023, we acquired Benu and its portfolio of cloud-native software solutions, including a virtual Broadband Network Gateway ((v)BNG), which complement our existing portfolio of broadband access solutions. In the first quarter of fiscal 2023, we also entered into a definitive agreement to acquire Tibit Communications, Inc., a provider of passive optical network solutions. See Note 28 “Subsequent Events” to our Consolidated Financial Statements included in Item 8 of Part II of this report for more information on this acquisition. Stock Repurchase Program. On December 9, 2021, we announced that our Board of Directors had authorized a program to repurchase up to $1.0 billion of our common stock, which replaced in its entirety our previous stock repurchase program authorized in fiscal 2019. On December 13, 2021, in connection with this repurchase program, we entered into an accelerated share repurchase agreement (the “ASR Agreement”) for the repurchase of $250.0 million of our common stock. We made an upfront payment of $250.0 million under the ASR Agreement during the first quarter of fiscal 2022, and the repurchases contemplated by the ASR Agreement were completed on February 15, 2022. During fiscal 2022, we repurchased an additional $250.0 million of our common stock under the stock repurchase program, and we had $500.0 million remaining under the current repurchase authorization as of October 29, 2022. The amount and timing of any further repurchases under our stock purchase program are subject to a variety of factors, including liquidity, cash flow, stock price and general business and market conditions. The program may be modified, suspended, or discontinued at any time. See Item 5 of Part II of this report and Note 22 to our Consolidated Financial Statements included in Item 8 of Part II of this report for more information on our stock repurchase program. Senior Notes Due 2030. On January 18, 2022, we issued $400 million in aggregate principal amount of 4.00% senior notes due 2030 (the “2030 Notes”). The net proceeds from the sale of the 2030 Notes, after deducting costs, were approximately $394.5 million with the use of proceeds intended for general corporate purposes. The 2030 Notes bear interest at a rate of 4.00% per annum and mature on January 31, 2030. Interest is 59 payable on the 2030 Notes in arrears on January 31 and July 31 of each year, commencing on July 31, 2022. See Note 19 to our Consolidated Financial Statements included in Item 8 of Part II of this report for more information on our 2030 Notes. Fiscal Year-End Backlog Generally, we make sales pursuant to purchase orders placed by customers under framework agreements that govern the general commercial terms and conditions of the sale of our products and services. These agreements do not obligate customers to purchase any minimum or guaranteed order quantities. In calculating backlog, we only include (i) customer purchase orders for products that have not been shipped and for services that have not yet been performed; and (ii) customer orders relating to products that have been delivered and services that have been performed, but are awaiting customer acceptance under the applicable contract terms. Generally, our customers may cancel, delay or change their orders with limited advance notice, or they may decide not to accept our products and services, although instances of both cancellation and non-acceptance are rare. Backlog may be fulfilled several quarters following receipt of a purchase order, or in the case of certain service obligations, may relate to multi-year support period. As a result, backlog should not necessarily be viewed as an accurate indicator of future revenue for any particular period. Our backlog was $4.2 billion as of October 29, 2022, as compared to $2.2 billion as of October 30, 2021. Backlog includes product and service orders from commercial and government customers combined, and our significant annual growth reflects the demand dynamics described above. Backlog at October 29, 2022 includes approximately $251.8 million primarily related to orders for products and maintenance and support services that are not expected to be filled or performed within fiscal 2023. Because backlog can be defined in different ways by different companies, our presentation of backlog may not be comparable with figures presented by other companies in our industry. Consolidated Results of Operations A discussion regarding our financial condition and results of operations for fiscal 2022 compared to fiscal 2021 is presented below. A discussion of fiscal 2021 compared to fiscal 2020 can be found under Item 7 of Part II of our Annual Report on Form 10-K for the fiscal year ended October 30, 2021, filed with the SEC on December 17, 2021, which is available free of charge on the SEC’s website at www.sec.gov and our Investor Relations website at investor.ciena.com. Operating Segments Our results of operations are presented based on the following operating segments: (i) Networking Platforms; (ii) Platform Software and Services; (iii) Blue Planet Automation Software and Services; and (iv) Global Services. See Notes 2 and 25 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report for more information on our segment reporting. Fiscal 2022 Compared to Fiscal 2021 Revenue Currency Fluctuations During fiscal 2022, approximately 13.7% of our revenue was non-U.S. Dollar denominated, primarily including sales in Euros, Canadian Dollars and British Pounds. During fiscal 2022, as compared to fiscal 2021, the U.S. Dollar primarily strengthened against these and other currencies. Consequently, our revenue reported in U.S. Dollars was adversely impacted by approximately $32.0 million, or 0.9%, as compared to fiscal 2021. 60 Operating Segment Revenue The table below sets forth the changes in our operating segment revenue for the periods indicated (in thousands, except percentage data): Fiscal Year 2022 %* 2021 %* Increase (decrease) %** Revenue: Networking Platforms Converged Packet Optical Routing and Switching Total Networking Platforms Platform Software and Services Blue Planet Automation Software and Services Global Services Maintenance Support and Training Installation and Deployment Consulting and Network Design $2,379,931 398,439 65.5 $2,553,509 11.0 271,796 70.5 $(173,578) (6.8) 126,643 46.6 7.5 2,778,370 277,191 76,567 76.5 7.6 2.1 2,825,305 229,588 77,247 78.0 6.4 2.1 (46,935) (1.7) 47,603 20.7 (680) (0.9) 292,375 157,443 50,715 8.1 4.3 1.4 283,350 171,489 33,705 7.8 4.7 1.0 9,025 3.2 (14,046) (8.2) 17,010 50.5 Total Global Services 500,533 13.8 488,544 13.5 11,989 Consolidated revenue $3,632,661 100.0 $3,620,684 100.0 $ 11,977 2.5 0.3 * Denotes % of total revenue ** Denotes % change from 2021 to 2022 • Networking Platforms segment revenue decreased by $46.9 million, reflecting product line sales decreases of $173.6 million of our Converged Packet Optical products, offset by product line sales increases of $126.6 million of our Routing and Switching products. Converged Packet Optical sales were adversely impacted by the current constrained supply environment, including the current market shortage for semiconductor components, as described in more detail in “Overview” above. • Converged Packet Optical sales decreased, primarily reflecting sales decreases of $128.9 million of our 6500 Packet-Optical Platform, primarily to communications service providers and Web-scale providers, $73.2 million of our Waveserver® modular interconnect system, primarily to Web-scale providers, $26.5 million of our 5400 family of Packet-Optical Platforms and $25.1 million of our Z-Series Packet-Optical Platform, both primarily to communications service providers. These sales decreases were partially offset by a sales increase of $79.8 million of our 6500 RLS products, primarily to Web-scale providers and communications service providers. • Routing and Switching sales increased, primarily reflecting sales of $86.1 million of our Virtualization Edge software, which was acquired in the acquisition of the Vyatta virtual routing and switching technology in the first quarter of fiscal 2022, and a sales increase of $50.5 million of our 3000 and 5000 families of service delivery and aggregation switches to communications service providers. The increase in Routing and Switching sales was partially offset by a sales decrease of $14.7 million of our 8700 Packetwave Platform, primarily to communications service providers. • Platform Software and Services segment revenue increased by $47.6 million, reflecting increases of $41.2 million in software services and $6.4 million in sales of software platforms. The increase in our software services was primarily due to increased sales of subscription services. The software sales increase was primarily due to increased sales of our MCP software platform. • Blue Planet Automation Software and Services segment revenue remained relatively unchanged. • Global Services segment revenue increased by $12.0 million, primarily reflecting sales increases of $17.0 million of our consulting and network design services and $9.0 million of our maintenance 61 support and training, partially offset by a sales decrease of $14.0 million of our installation and deployment services. Installation and deployment services were adversely impacted by the current constrained supply environment, which resulted in delayed delivery of Converged Packet Optical products for which installation and deployment services were ordered by customers, as described in more detail in “Overview” above. Revenue by Geographic Region Our operating segments engage in business and operations across three geographic regions: Americas; EMEA and APAC. The geographic distribution of our revenue can fluctuate significantly from period to period, and the timing of revenue recognition for large network projects, particularly outside of the United States, can result in large variations in geographic revenue results in any particular period. The increase in our Americas region revenue for fiscal 2022 was primarily driven by increased sales in the United States partially offset by decreased sales in Brazil. The decrease in our EMEA region revenue for fiscal 2022 was primarily driven by decreased sales in the Netherlands, France and Russia. Our Russia operations were suspended in March 2022. The increase in our APAC region revenue for fiscal 2022 was primarily driven by increased sales in India and Australia, partially offset by decreased sales in Japan. The following table reflects our geographic distribution of revenue, which is principally based on the relevant location for our delivery of products and performance of services. The table below sets forth the changes in geographic distribution of revenue for the periods indicated (in thousands, except percentage data): Fiscal Year 2022 %* 2021 %* Increase (decrease) %** Americas EMEA APAC Total * Denotes % of total revenue ** Denotes % change from 2021 to 2022 $2,636,840 555,215 440,606 72.6 $2,525,619 15.3 670,462 12.1 424,603 69.8 $ 111,221 18.5 11.7 4.4 (115,247) (17.2) 3.8 16,003 $3,632,661 100.0 $3,620,684 100.0 $ 11,977 0.3 • Americas revenue increased by $111.2 million, reflecting sales increases of $47.1 million within our Networking Platforms segment, $33.2 million within our Platform Software and Services segment, $25.5 million within our Global Services segment, and $5.4 million within our Blue Planet Automation Software and Services segment. Our Networking Platforms segment revenue increase reflects product line sales increases of $130.5 million of Routing and Switching products, partially offset by product line sales decreases of $83.3 million of Converged Packet Optical products. Routing and Switching product line sales reflect $86.1 million of our Virtualization Edge software, and a sales increase of $53.6 million of our 3000 and 5000 families of service delivery and aggregation switches, primarily to communications service providers. Our Converged Packet Optical revenue decrease primarily reflects sales decreases of $89.9 million of our 6500 Packet-Optical Platform, primarily to communications service providers and Web-scale providers, and $25.5 million of our 5400 family of Packet-Optical Platforms and $23.5 million of our Z-Series Packet-Optical Platform, primarily to communications service providers. These sales decreases were partially offset by sales increases of $49.6 million of our 6500 RLS products, primarily to Web-Scale providers. • EMEA revenue decreased by $115.2 million, reflecting sales decreases of $107.7 million within our Networking Platforms segment, $14.2 million within our Global Services segment and $4.4 million within our Blue Planet Automation Software and Services segment. These sales decreases were offset by a sales increase of $11.1 million within our Platform Software and Services segment. Our Networking Platforms segment revenue decrease primarily reflects product line sales decreases of 62 $110.8 million of Converged Packet Optical products, primarily reflecting sales decreases of $65.5 million of our 6500 Packet-Optical Platform, primarily to communications service providers and Web-scale providers, and $59.2 million of our Waveserver modular interconnect system primarily to Web-scale providers. Sales decreased by $13.8 million from customers in Russia. • APAC revenue increased by $16.0 million, primarily reflecting sales increases of $13.7 million within our Networking Platforms segment and $3.3 million within our Platform Software and Services segment, partially offset by sales decreases of $1.7 million within our Blue Planet Automation Software and Services segment. Our Networking Platforms segment revenue increase reflects product line sales increases of $20.5 million of Converged Packet Optical products, primarily reflecting sales increases of $26.4 million of our 6500 Packet-Optical Platform, primarily to enterprise customers and communications service providers. In fiscal 2022 and fiscal 2021, our top ten customers contributed 56.3% and 55.5% of our revenue, respectively. Consequently, our financial results are closely correlated with the spending of a relatively small number of customers and can be significantly affected by market, industry or competitive dynamics affecting the businesses of those customers. Our reliance on a relatively small number of customers increases our exposure to changes in their spending levels, network priorities and purchasing strategies. The loss of a significant customer could have a material adverse effect on our business and results of operations, and our results of operations can fluctuate quarterly depending on sales volumes and purchasing priorities with these large customers. Sales to AT&T were $433.4 million, or 11.9% of total revenue, in fiscal 2022, and $447.4 million, or 12.4% of total revenue, in fiscal 2021. Verizon accounted for $402.8 million, or 11.1% of total revenue, in fiscal 2022. No other customer accounted for greater than 10% of our revenue in fiscal 2022 or fiscal 2021. While drivers of bandwidth growth and network evolution remain strong, many of our network operator customers are under pressure to constrain their capital expenditure budgets, and their businesses cannot grow their network spending at the rate of bandwidth growth. As a result, as we innovate and introduce new and more robust solutions that increase capacity or add features, there is a market expectation for solutions that are more cost-effective than existing or competing solutions and that new products consistently deliver lower price per bit performance. The combination of this regular technology-driven price compression, price competition in our markets and ongoing customer efforts to manage network costs can impact our growth rates and requires that we increase our volume of product shipments to maintain and grow revenue. Cost of Goods Sold and Gross Profit Product cost of goods sold consists primarily of amounts paid to third-party contract manufacturers, component costs, employee-related costs and overhead, shipping and logistics costs associated with manufacturing-related operations, warranty and other contractual obligations, royalties, license fees, amortization of intangible assets, cost of excess and obsolete inventory and, when applicable, estimated losses on committed customer contracts. Services cost of goods sold consists primarily of direct and third-party costs associated with our provision of services including installation, deployment, maintenance support, consulting and training activities, and, when applicable, estimated losses on committed customer contracts. The majority of these costs relate to personnel, including employee and third-party contractor-related costs. Our gross profit as a percentage of revenue, or “gross margin,” can fluctuate due to a number of factors, particularly when viewed on a quarterly basis. Our gross margin can fluctuate and be adversely impacted depending on our revenue concentration within a particular segment, product line, geography, or customer, including our success in selling software in a particular period. Our gross margin remains highly dependent on our continued ability to drive annual product cost reductions relative to the price erosion that we regularly encounter in our markets. This can be challenging, particularly within the current constrained supply 63 environment. Moreover, we are often required to compete with aggressive pricing and commercial terms, and, to secure business with new and existing customers, we may agree to pricing or other unfavorable commercial terms that adversely affect our gross margin. Success in taking share and winning new business can result in additional pressure on gross margin from these pricing dynamics and the early stages of these network deployments. Early stages of new network builds also often include an increased concentration of lower margin “common” equipment, photonics sales and installation services, with the intent to improve margin as we sell channel cards and maintenance services to customers as they add capacity and need to monitor their networks. Gross margin can be impacted by technology-based price compression and the introduction or substitution of new platforms with improved price for performance as compared to existing solutions that carry higher margins. Gross margin can also be impacted by changes in expense for excess and obsolete inventory and warranty obligations. Service gross margin can be affected by the mix of customers and services, particularly the mix between deployment and maintenance services, geographic mix and the timing and extent of any investments in internal resources to support this business. In fiscal 2021, we recorded Canada Emergency Wage Subsidy (“CEWS”) benefits of $7.0 million, net of certain fees, related to the particular line item within costs of goods sold in our Consolidated Statements of Operations to which the grant activity related. The CEWS program expired in fiscal 2021. For further information relating to our receipt of amounts under the CEWS program, see Note 3 to our Consolidated Financial Statements included in Item 8 of Part II of this report. The tables below set forth the changes in revenue, cost of goods sold and gross profit for the periods indicated (in thousands, except percentage data): Fiscal Year 2022 %* 2021 %* Increase (decrease) %** Total revenue Total cost of goods sold Gross profit * Denotes % of total revenue ** Denotes % change from 2021 to 2022 Product revenue Product cost of goods sold Product gross profit * Denotes % of product revenue ** Denotes % change from 2021 to 2022 Services revenue Services cost of goods sold Services gross profit * Denotes % of service revenue ** Denotes % change from 2021 to 2022 $3,632,661 100.0 $3,620,684 100.0 $ 11,977 173,612 1,898,705 2,072,317 57.0 52.4 0.3 9.1 $1,560,344 43.0 $1,721,979 47.6 $(161,635) (9.4) Fiscal Year 2022 %* 2021 %* Increase (decrease) $2,888,848 100.0 $2,932,602 100.0 $ (43,754) 154,362 1,545,269 1,699,631 58.8 52.7 %** (1.5) 10.0 $1,189,217 41.2 $1,387,333 47.3 $(198,116) (14.3) Fiscal Year 2022 %* 2021 %* Increase (decrease) %** $743,813 100.0 $688,082 100.0 $55,731 19,250 353,436 372,686 51.4 50.1 8.1 5.4 $371,127 49.9 $334,646 48.6 $36,481 10.9 64 • Gross profit decreased by $161.6 million. Gross margin decreased by 460 basis points, primarily due to increased costs of components resulting from global supply chain shortages and a higher concentration of lower margin product mix, slightly offset by a larger percentage of higher margin services revenue. As described in “Overview” above, we expect the current constrained supply environment, including the current market shortage for semiconductor components, to increase our costs of goods sold and to adversely impact our gross margin during fiscal 2023. • Gross profit on products decreased by $198.1 million. Product gross margin decreased by 610 basis points, primarily due to increased costs of components resulting from global supply chain shortages and a higher concentration of lower margin product mix. • Gross profit on services increased by $36.5 million. Service gross margin increased by 130 basis points, primarily due to higher revenues with relatively lower incremental costs on all services. Operating Expense Currency Fluctuations During fiscal 2022, approximately 50.0% of our operating expense was non-U.S. Dollar denominated, including Canadian Dollars, Indian Rupees, and Euros. During fiscal 2022 as compared to fiscal 2021, the U.S. Dollar primarily strengthened against these and other currencies. Consequently, our operating expense reported in U.S. Dollars decreased by approximately $25.5 million, or 1.9%, net of hedging. CEWS Program Benefits In fiscal 2021, we recorded CEWS benefits of $34.3 million, net of certain fees, related to the particular line item within operating expense in our Consolidated Statements of Operations to which the grant activity related. The CEWS program expired in fiscal 2021. For further information relating to our receipt of amounts under the CEWS program, see Note 3 to our Consolidated Financial Statements included in Item 8 of Part II of this report. Operating expense increased in fiscal 2022 from the level reported for fiscal 2021 primarily due to increases in employee headcount and variable compensation costs related to sales commissions, the expiration of the CEWS program, and increases in travel and entertainment costs, partially offset by decreases in employee variable compensation costs related to lower costs associated with our annual cash incentive compensation plan. We have also experienced, and are continuing to experience, increases in the cost of labor and other costs of doing business due to inflation, and continued inflationary pressures could have an adverse impact on our profitability. We expect operating expense to continue to increase from the level reported in fiscal 2022 primarily due to planned investment in research and development to advance our strategy and higher employee compensation costs. Operating expense consists of the component elements described below. • Research and development expense primarily consists of salaries and related employee expense (including share-based compensation expense), prototype costs relating to design, development, product testing, depreciation expense, and third-party consulting costs. • Selling and marketing expense primarily consists of salaries, commissions and related employee expense (including share-based compensation expense) and sales and marketing support expense, including travel, demonstration units, trade show expense, and third-party consulting costs. • General and administrative expense primarily consists of salaries and related employee expense (including share-based compensation expense) and costs for third-party consulting and other services. • Significant asset impairments and restructuring costs primarily reflect actions we have taken to improve the alignment of our workforce, facilities and operating costs with perceived market opportunities, business strategies, changes in market and business conditions, the redesign of certain business processes and significant impairments of assets. 65 • Amortization of intangible assets primarily reflects the amortization of both purchased technology and the value of customer relationships derived from our acquisitions. • Acquisition and integration costs primarily consist of expenses for financial, legal and accounting advisors and severance and other employee-related costs, associated with our acquisition activity. For more information on our acquisitions, see Note 4 to our Consolidated Financial Statements included in Item 8 of Part II of this report. The table below sets forth the changes in operating expense for the periods indicated (in thousands, except percentage data): Fiscal Year 2022 %* 2021 %* Increase (decrease) %** Research and development Selling and marketing General and administrative Significant asset impairments and restructuring costs Amortization of intangible assets Acquisition and integration costs 16.4 $ 624,656 17.2 $ 536,666 14.8 $ 87,990 3.2 14,351 (1.4) (2,492) 14.4 4,259 37.0 8,779 (1,974) (76.7) 452,214 12.5 5.0 181,874 0.8 29,565 0.7 23,732 0.1 2,572 466,565 12.9 4.9 179,382 0.9 33,824 0.9 32,511 598 — Total operating expenses $1,337,536 36.8 $1,226,623 33.9 $110,913 9.0 * Denotes % of total revenue ** Denotes % change from 2021 to 2022 • Research and development expense benefited from $13.5 million as a result of foreign exchange rates, net of hedging, primarily due to a stronger U.S. Dollar in relation to the Canadian Dollar and Indian Rupee. Including the effect of foreign exchange rates, net of hedging, research and development expenses increased by $88.0 million. This increase primarily reflects the effect of a $29.5 million benefit received from the now-expired CEWS program recorded in fiscal 2021 and increases in employee headcount and related compensation costs and professional services, partially offset by lower costs associated with our annual cash incentive compensation plan. • Selling and marketing expense benefited from $9.6 million as a result of foreign exchange rates, primarily due to a stronger U.S. Dollar in relation to the Euro and Australian Dollar. Including the effect of foreign exchange rates, sales and marketing expense increased by $14.4 million. This increase primarily reflects an increase in travel and entertainment costs, employee headcount and compensation costs related to sales commission, partially offset by lower costs associated with our annual cash incentive compensation plan. • General and administrative expense benefited from $2.4 million as a result of foreign exchange rates, primarily due to a stronger U.S. Dollar in relation to the Euro. Including the effect of foreign exchange rates, general and administrative expense decreased by $2.5 million. This decrease primarily reflects decreases in employee-related compensation costs primarily related to lower costs associated with our annual cash incentive compensation plan and legal fees, offset by increased professional services. • Significant asset impairments and restructuring costs increased by $4.3 million, reflecting alignment of our global workforce and facilities and a $3.8 million impairment charge due to our suspended operations in Russia, partially offset by reduced costs associated with actions that we have taken to redesign certain business processes as part of a business optimization strategy to improve gross margin and constrain operating expense. 66 • Amortization of intangible assets increased by $8.8 million due to additional intangibles acquired in connection with our acquisition of Vyatta during the first quarter of fiscal 2022 and our acquisition of Xelic during the second quarter of fiscal 2022. • Acquisition and integration costs primarily consist of expenses for financial, legal and accounting advisors and severance and other employee-related costs, associated with our acquisition of Vyatta during the first quarter of fiscal 2022 and our acquisition of Xelic during the second quarter of fiscal 2022. Other Items The table below sets forth the changes in other items for the periods indicated (in thousands, except percentage data): Interest and other income (loss), net Interest expense Provision (benefit) for income taxes * Denotes % of total revenue ** Denotes % change from 2021 to 2022 Fiscal Year 2022 %* 2021 %* Increase (decrease) %** $ 6,747 0.2 $ (1,768) — $ 8,515 481.6 $(47,050) (1.3) $(30,837) (0.9) $16,213 52.6 $ 29,603 0.8 $(37,445) (1.0) $67,048 179.1 • • Interest and other income (loss), net increased, primarily reflecting higher interest income and the impact of foreign exchange rates on assets and liabilities denominated in a currency other than the relevant functional currency, net of hedging activity. Interest expense increased, primarily due to additional outstanding indebtedness, including the 2030 Notes, and increased interest on the unhedged portion of the 2025 Term Loan (as defined below) interest. • Provision (benefit) for income taxes increased due to the tax benefit associated with recording a deferred tax asset in fiscal 2021. The effective tax rate for fiscal 2022 was higher than the effective tax rate for fiscal 2021, primarily due to the tax benefit associated with recording a deferred tax asset in fiscal 2021. Segment Profit (Loss) The table below sets forth the changes in our segment profit (loss) for the respective periods (in thousands, except percentage data): Segment profit (loss): Networking Platforms Platform Software and Services Blue Planet Automation Software and Services Global Services * Denotes % change from 2021 to 2022 67 Fiscal Year 2022 2021 Increase (decrease) %* $572,305 $175,108 $850,901 $136,602 $(278,596) $ 38,506 (32.7) 28.2 $ (22,388) $ $210,663 (711) $ (21,677) $ 12,142 $198,521 (3,048.8) 6.1 Segment profit (loss) includes CEWS benefits of $36.5 million in fiscal 2021, net of certain fees. For further discussion of benefits from the CEWS program, see Note 3 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report. • Networking Platforms segment profit decreased by $278.6 million, primarily due to lower gross margin as described above, higher research and development costs, including the effect of a $30.4 million benefit received from the now-expired CEWS program recorded in fiscal 2021 and lower sales volume. • Platform Software and Services segment profit increased by $38.5 million, primarily due to higher sales volume, as described above. • Blue Planet Automation Software and Services segment loss increased by $21.7 million, which reflects lower software sales volume, reduced gross margin on software-related services, and higher research and development costs including the effect of a $1.2 million benefit received from the now-expired CEWS program recorded in fiscal 2021. • Global Services segment profit increased by $12.1 million, primarily due to higher sales volume and higher gross margin as described above, partially offset by the effect of a $2.3 million benefit received from the now-expired CEWS program recorded in fiscal 2021. Liquidity and Capital Resources Overview. For the fiscal year ended October 29, 2022, we used $167.8 million of cash from operations, as our working capital requirements of $572.1 million exceeded our net income (adjusted for non-cash charges) of $404.3 million. For additional details on our cash used in operating activities, see the discussion below under the caption “Cash Used in Operating Activities.” Cash, cash equivalents and investments decreased by $490.3 million during fiscal 2022. In addition to the cash used in operations above, the following items also contributed to the decrease in cash: (i) cash used to fund our investing activities for capital expenditures totaling $90.8 million; (ii) cash used for stock repurchase under our stock repurchase program of $500.8 million; (iii) stock repurchased upon vesting of our stock unit awards to employees relating to tax withholding of $48.5 million; (iv) cash used for acquisition of businesses of $62.0 million, net of cash acquired; (v) cash used for payments on our term loan due September 28, 2025 (the “2025 Term Loan”) of $5.2 million; (vi) purchase of a cost method equity investment of $8.0 million; and (vii) net decreases due to the impact of exchange rate changes on cash and cash equivalents of $26.2 million. Proceeds from the issuance of the 2030 Notes provided $394.5 million in cash, net of paid debt issuance costs, while the issuance of equity under our employee stock purchase plans provided $30.3 million in cash during fiscal 2022. See Notes 4, 19, and 22 to our Consolidated Financial Statements included in Item 8 of Part II of this report for information relating to these transactions. The following table sets forth changes in our cash and cash equivalents and investments in marketable debt securities (in thousands): Cash and cash equivalents Short-term investments in marketable October 29, 2022 October 30, 2021 Increase (decrease) $ 994,352 $1,422,546 $(428,194) debt securities 153,989 181,483 (27,494) Long-term investments in marketable debt securities Total cash and cash equivalents and investments in marketable debt securities 35,385 70,038 (34,653) $1,183,726 $1,674,067 $(490,341) 68 Principal Sources of Liquidity. Our principal sources of liquidity on hand include our cash, cash equivalents and investments, which as of October 29, 2022 totaled $1.18 billion, as well as the senior secured asset-based revolving credit facility to which we and certain of our subsidiaries are parties (the “ABL Credit Facility”). The ABL Credit Facility, which we and certain of our subsidiaries entered into on October 28, 2019, replaced a predecessor senior secured asset-based revolving credit facility and provides for a total commitment of $300 million with a maturity date of October 28, 2024. We principally use the ABL Credit Facility to support the issuance of letters of credit that arise in the ordinary course of our business and thereby to reduce our use of cash required to collateralize these instruments. As of October 29, 2022, letters of credit totaling $85.6 million were outstanding under our ABL Credit Facility. There were no borrowings outstanding under the ABL Credit Facility as of October 29, 2022. Foreign Liquidity. The amount of cash, cash equivalents and short-term investments held by our foreign subsidiaries was $280.1 million as of October 29, 2022. We intend to reinvest indefinitely our foreign earnings. If we were to repatriate these accumulated historical foreign earnings, the provisional amount of unrecognized deferred income tax liability related to foreign withholding taxes would be approximately $33.0 million. See Note 23 to our Consolidated Financial Statements included in Item 8 of Part II of this report. Stock Repurchase Authorization. On December 9, 2021, we announced that our Board of Directors authorized a program to repurchase up to $1.0 billion of our common stock, which replaced in its entirety the previous stock repurchase program authorized in fiscal 2019. On December 13, 2021, in connection with this repurchase program, we entered into the ASR Agreement for the repurchase of $250.0 million of our common stock. We made an upfront payment of $250.0 million under the ASR Agreement during the first quarter of fiscal 2022, and the repurchases contemplated by the ASR Agreement were completed on February 15, 2022. During fiscal 2022, we repurchased an additional $250.0 million of our common stock under the stock repurchase program, and we had $500.0 million remaining under the current repurchase authorization as of October 29, 2022. The amount and timing of any further repurchases under our stock repurchase program are subject to a variety of factors including liquidity, cash flow, stock price and general business and market conditions. The program may be modified, suspended, or discontinued at any time. See Note 22 to our Consolidated Financial Statements included in Item 8 of Part II of this report. Liquidity Position. Based on past performance and current expectations, we believe that cash from operations, cash, cash equivalents, investments, and other sources of liquidity, including our ABL Credit Facility, will satisfy our currently anticipated working capital needs, capital expenditures, and other liquidity requirements associated with our operations through the next 12 months and the reasonably foreseeable future. We regularly evaluate our liquidity position, debt obligations, and anticipated cash needs to fund our operating or investment plans, and will continue to consider capital raising and other market opportunities that may be available to us. We have historically been successful in our ability to secure such sources of financing, however, our access to these sources of capital could be materially and adversely impacted and we may not be able to receive terms as favorable as we have historically received, whether due to inflation or otherwise. We regularly evaluate alternatives to manage our capital structure and market opportunities to enhance our liquidity and provide further operational and strategic flexibility. 69 Cash Used in Operating Activities The following sections set forth the components of our $167.8 million of cash used in operating activities for fiscal 2022: Net Income (adjusted for non-cash charges) The following table sets forth our net income (adjusted for non-cash charges) during fiscal 2022 (in thousands): Net income Adjustments for non-cash charges: Depreciation of equipment, building, furniture and fixtures, and amortization of leasehold improvements Share-based compensation costs Amortization of intangible assets Deferred taxes Provision for inventory excess and obsolescence Provision for warranty Net income (adjusted for non-cash charges) Year Ended October 29, 2022 $152,902 95,922 105,131 44,281 (27,502) 16,184 17,440 $404,358 Working Capital We used $572.1 million of cash for working capital during fiscal 2022. The following table sets forth the major components of the cash used in working capital (in thousands): Cash used in accounts receivable Cash used in inventories Cash used in prepaid expenses and other Cash provided by accounts payable, accruals and other obligations Cash provided by deferred revenue Cash used in operating lease assets and liabilities, net Total cash used for working capital Year Ended October 29, 2022 $ (47,069) (589,113) (58,996) 100,327 26,380 (3,643) $(572,114) As compared to the end of fiscal 2021: • The $47.1 million of cash used in accounts receivable during fiscal 2022 primarily reflects increased sales volume at the end of the fourth quarter of fiscal 2022; • The $589.1 million of cash used in inventory during fiscal 2022 primarily reflects increases in raw materials inventory related to the steps we are taking to mitigate the impact of current supply chain constraints and the global market shortage of semiconductor parts described in “Overview” above; • The $59.0 million of cash used in prepaid expenses and other during fiscal 2022 primarily reflects increases in contract assets and capitalized commissions, partially offset by decreases in prepaid foreign currency forward contracts and lower prepaid value added taxes; • The $100.3 million of cash provided by accounts payable, accruals and other obligations during fiscal 2022 primarily reflects the timing of payments for inventory purchases partially offset by a lower accrual rate related to Ciena’s 2022 annual cash incentive compensation plan; 70 • The $26.4 million of cash provided by deferred revenue during fiscal 2022 represents an increase in advanced payments received from customers prior to revenue recognition; and • The $3.6 million of cash used in operating lease assets and liabilities, net, during fiscal 2022 represents cash paid for operating lease payments in excess of operating lease costs. For more details, see Note 18 to our Consolidated Financial Statements included in Item 8 of Part II of this report. Our days sales outstanding (“DSOs”) were 107 for fiscal 2022, as compared to 98 for fiscal 2021. The calculation of DSOs includes accounts receivable, net and contract assets for unbilled receivables, net included in prepaid expenses and other. Our inventory turns decreased from 4.1 during fiscal 2021 to 1.8 during fiscal 2022 due to the increases in inventory as described in “Overview” above. Cash Paid for Interest The following table sets forth the cash paid for interest during fiscal 2022 (in thousands): Term Loan due September 28, 2025(1) Interest rate swaps(2) ABL Credit Facilities(3) Senior Notes due January 31, 2030(4) Finance leases Cash paid during period Year Ended October 29, 2022 $20,393 6,873 2,368 8,578 4,600 $42,812 (1) Interest on the 2025 Term Loan is payable periodically based on the interest period selected for borrowing. The 2025 Term Loan bears interest at the London Interbank Offered Rate (“LIBOR”) for the chosen borrowing period plus a spread of 1.75% subject to a minimum LIBOR rate of 0.00%. At the end of fiscal 2022, the interest rate on the 2025 Term Loan was 5.24%. (2) The interest rate swaps fix the floating rate for $350.0 million of the 2025 Term Loan at 2.957% through September 2023, and at 2.968% for the period from October 2023 through September 2025. (3) During fiscal 2022, we utilized the ABL Credit Facility and its predecessor to collateralize certain standby letters of credit and paid $2.4 million in commitment fees, interest expense and other administrative charges relating to the ABL Credit Facility. (4) The 2030 Notes bear interest at a rate of 4.00% per annum and mature on January 31, 2030. Interest is payable on the 2030 Notes in arrears on January 31 and July 31 of each year. For additional information about the 2025 Term Loan, 2030 Notes, ABL Credit Facility and interest rate swaps, see Notes 16, 19 and 20 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report and Item 7A of Part II of this annual report. Contractual Obligations Debt. As of October 29, 2022, we had $675.7 million outstanding principal associated with our 2025 Term Loan, with $6.9 million payable within 12 months. Interest on the 2025 Term Loan and payments due under the interest rate swaps is variable and is calculated using the rate in effect on the balance sheet date. Future interest payments associated with the 2025 Term Loan Notes total $103.9 million, with $35.7 million payable within 12 months. As of October 29, 2022, we had $400.0 million outstanding principal associated with the 2030 Notes payable January 31, 2030. Future interest payments associated with the 2030 Notes total $120.0 million, with $16.0 million payable within 12 months. Future interest payments associated with the interest rate swaps total $5.4 million, with $1.9 million payable within 12 months. For additional information about our term loan and the interest rate swaps, see Notes 16 and 19 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report and Item 7A of Part II of this annual report. 71 Purchase Order Obligations. As of October 29, 2022, we had $2.6 billion in outstanding purchase order commitments to our contract manufacturers and component suppliers for inventory. In certain instances, we are permitted to cancel, reschedule or adjust these orders. Consequently, only a portion of this amount relates to firm, non-cancelable and unconditional obligations. Leases. We have lease arrangements for facilities including research and development centers, engineering facilities and smaller offices in regions throughout the world to support sales and services operations. Office facilities are leased under various non-cancelable operating or finance leases. As of October 29, 2022, we had fixed lease payment obligations of $145.5 million, with $28.2 million payable within 12 months. See Note 18 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report. Off-Balance Sheet Arrangements We do not engage in any off-balance sheet financing arrangements. In particular, we do not have any equity interests in so-called limited purpose entities, which include special purpose entities (SPEs) and structured finance entities. Critical Accounting Policies and Estimates The preparation of our consolidated financial statements requires that we make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expense, and related disclosure of contingent assets and liabilities. Note 1 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report describes the significant accounting policies and methods used in the preparation of the Consolidated Financial Statements. By their nature, these estimates and judgments are subject to an inherent degree of uncertainty. On an ongoing basis, we reevaluate our estimates, including those related to revenue recognition, share-based compensation, bad debts, inventories, intangible and other long-lived assets, goodwill, income taxes, warranty obligations, restructuring, derivatives and hedging, and contingencies and litigation. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable. The inputs into certain of our judgments, assumptions, and estimates reflect, among other things, the information available to us regarding the economic implications of the COVID-19 pandemic, and expectations as to its impact on our business and on our critical and significant accounting estimates. Among other things, these estimates form the basis for judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ materially from these estimates under different assumptions or conditions. To the extent that there are material differences between our estimates and actual results, our consolidated financial statements will be affected. We believe that the following critical accounting policies reflect those areas where significant judgments and estimates are used in the preparation of our consolidated financial statements. Revenue Recognition Revenue is allocated among performance obligations based on standalone selling price (“SSP”). SSP reflects the price at which we would expect to sell that product or service on a stand-alone basis at contract inception and that we would expect to be entitled to receive for the promised products or services. SSP is estimated for each distinct performance obligation, and judgment may be required in its determination. The best evidence of SSP is the observable price of a product or service when we sell the products separately in similar circumstances and to similar customers. In instances where SSP is not directly observable, we determine SSP using information that may include market conditions and other observable inputs. We apply judgment in determining the transaction price, as we may be required to estimate variable consideration when determining the amount of revenue to recognize. Variable consideration can include various rebate, cooperative marketing, and other incentive programs that we offer to our distributors, partners and 72 customers. When determining the amount of revenue to recognize, we estimate the expected usage of these programs, applying the expected value or most likely estimate and updates the estimate at each reporting period as actual utilization data becomes available. We also consider any customer right of return and any actual or potential payment of liquidated damages, contractual or similar penalties, or other claims for performance failures or delays in determining the transaction price, where applicable. When transfer of control is judged to be over time for installation and professional service arrangements, we apply the input method to determine the amount of revenue to be recognized in a given period. Utilizing the input method, we recognize revenue based on the ratio of actual costs incurred to date to the total estimated costs expected to be incurred. Revenue for software subscription and maintenance is recognized ratably over the period during which the services are performed. Our total deferred revenue for products was $19.8 million and $12.9 million as of October 29, 2022 and October 30, 2021, respectively. Our services revenue is deferred and recognized ratably over the period during which the services are to be performed. Our total deferred revenue for services was $180.4 million and $162.6 million as of October 29, 2022 and October 30, 2021, respectively. Business Combinations We record acquisitions using the purchase method of accounting. All of the assets acquired, liabilities assumed, contractual contingencies and contingent consideration are recognized at their fair value as of the acquisition date. The excess of the purchase price over the estimated fair values of the net tangible and net intangible assets acquired is recorded as goodwill. The application of the purchase method of accounting for business combinations requires management to make significant estimates and assumptions in the determination of the fair value of assets acquired and liabilities assumed in order to allocate purchase price consideration properly between assets that are depreciated and amortized from goodwill. These assumptions and estimates include a market participant’s use of the asset and the appropriate discount rates for a market participant. Our estimates are based on historical experience, information obtained from the management of the acquired companies and, when appropriate, include assistance from independent third-party appraisal firms. Our significant assumptions and estimates can include, but are not limited to, the cash flows that an asset is expected to generate in the future, the appropriate weighted-average cost of capital, and the cost savings expected to be derived from acquiring an asset. These estimates are inherently uncertain and unpredictable. In addition, unanticipated events and circumstances may occur that may affect the accuracy or validity of such estimates. During fiscal 2020, we completed the acquisition of Centina Systems, Inc. (“Centina”) for a purchase price of $34.0 million. During fiscal 2022, we completed the acquisitions of Vyatta and Xelic for an aggregate purchase price of $64.1 million. See Note 4 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report for more information regarding these transactions. Share-Based Compensation We estimate the fair value of our restricted stock unit awards based on the fair value of our common stock on the date of grant. Our outstanding restricted stock unit awards are subject to service-based vesting conditions and/or performance-based vesting conditions. We recognize the estimated fair value of service-based awards as share-based expense ratably over the vesting period on a straight-line basis. Awards with performance-based vesting conditions require the achievement of certain financial or other performance criteria or targets as a condition to the vesting, or acceleration of vesting. We recognize the estimated fair value of performance-based awards as share-based expense over the performance period, using graded vesting, which considers each performance period or tranche separately, based on our determination of whether it is probable that the performance targets will be achieved. At the end of each reporting period, we reassess the probability of achieving the performance targets and the performance period required to meet those targets, and the expense is adjusted accordingly. Determining whether the performance targets will be achieved involves judgment, and the estimate of expense may be revised periodically based on changes in the probability of achieving the 73 performance targets. Revisions are reflected in the period in which the estimate is changed. If any performance goals are not met, no compensation cost is ultimately recognized against that goal and, to the extent previously recognized, compensation cost is reversed. Share-based compensation expense is taken into account based on awards granted. In the event of a forfeiture of an award, the expense related to the unvested portion of that award is reversed. Reversal of share- based compensation expense based on forfeitures can materially affect the measurement of estimated fair value of our share-based compensation. See Note 24 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report for information regarding our assumptions related to share-based compensation and the amount of share-based compensation expense we incurred for the periods covered in this report. As of October 29, 2022, total unrecognized compensation expense was $185.7 million, which relates to unvested restricted stock units and is expected to be recognized over a weighted-average period of 1.51 years. We are required to record excess tax benefits or tax deficiencies related to stock-based compensation as income tax benefit or expense when share-based awards vest or are settled. Reserve for Inventory Obsolescence We make estimates about future customer demand for our products when establishing the appropriate reserve for excess and obsolete inventory. For fiscal 2022, future demand was calculated primarily based on customer backlog as described in “Overview” above. Generally, our customers may cancel or change their orders with limited advance notice, or they may decide not to accept our products and services, although instances of both cancellation and non-acceptance are rare. We write down inventory that has become obsolete or unmarketable by an amount equal to the difference between the cost of inventory and the estimated market value based on assumptions about future demand, which are affected by changes in our strategic direction, discontinuance of a product or introduction of newer versions of our products, declines in the sales of or forecasted demand for certain products, and general market conditions. Inventory write downs are a component of our product cost of goods sold. Upon recognition of the write down, a new lower cost basis for that inventory is established, and subsequent changes in facts and circumstances do not result in the restoration or increase in that newly established cost basis. In an effort to limit our exposure to delivery delays and to satisfy customer needs, we purchase inventory based on forecasted sales across our product lines. Beginning in the second half of fiscal 2021, we started placing significant, advanced orders for supply of certain long lead time components to address our expected customer demand for fiscal 2022 and the then-emerging supply chain challenges. Since that time, we have continued to extend the duration of our purchase commitments, or placed non-cancellable, advanced orders with or through suppliers, particularly for long lead time components. As of October 29, 2022, we had $2.6 billion in outstanding purchase order commitments to our contract manufacturers and component suppliers for inventory. In addition, part of our research and development strategy is to promote the convergence of similar features and functionalities across our product lines. Each of these practices exposes us to the risk that our customers will not order products for which we have forecasted sales, or will purchase less than we have forecasted. We recorded charges for excess and obsolete inventory of $16.2 million, $17.9 million and $24.7 million in fiscal 2022, 2021 and 2020, respectively. Our inventory, net of allowance for excess and obsolescence, was $946.7 million and $374.3 million as of October 29, 2022 and October 30, 2021, respectively. Allowance for Credit Losses for Accounts Receivable and Contract Assets We estimate our allowances for credit losses using relevant available information from internal and external sources. This information is related to past events, current conditions and reasonable and supportable forecasts. Historical credit loss experience provides the basis for the estimation of expected credit losses. When assessing for credit losses, we determine collectability by pooling assets with similar characteristics. The allowances for credit losses are each measured on a collective basis when similar risk characteristics exist. The allowances for 74 credit losses are each measured by multiplying the exposure probability of default (the probability that asset will default within a given time frame) by the loss given default rate (the percentage of the asset not expected to be collected due to default) based on the pool of assets. Probability of default rates is published by third-party credit rating agencies. Adjustments to our exposure probability may take into account a number of factors, including, but not limited to, various customer-specific factors, the potential sovereign risk of the geographic locations in which the customer is operating and macroeconomic conditions. These factors are updated regularly or when facts and circumstances indicate that an update is deemed necessary. Our accounts receivable, net of allowance for credit losses, was $920.8 million and $885.0 million as of October 29, 2022 and October 30, 2021, respectively. Our allowance for credit losses was $11.0 million and $10.9 million as of October 29, 2022 and October 30, 2021, respectively. Our contract assets for unbilled accounts receivable, net of allowance for credit losses, was $156.0 million and $101.4 million as of October 29, 2022 and October 30, 2021, respectively. Our allowance for credit losses was $0.2 million and $0.1 million as of October 29, 2022 and October 30, 2021, respectively. Goodwill Our goodwill was generated from the acquisitions of (i) Cyan, Inc. during fiscal 2015, (ii) the high-speed photonics components assets of TeraXion, Inc. during fiscal 2016, (iii) Packet Design, LLC on July 2, 2018, (iv) DonRiver Holdings, LLC on October 1, 2018, (v) Centina on November 2, 2019, (vi) Vyatta on November 1, 2021, and (vii) Xelic on March 9, 2022. The goodwill from these acquisitions is primarily related to expected economic synergies. Goodwill is the excess of the purchase price over the fair values assigned to the net assets acquired in a business combination. We test goodwill for impairment on an annual basis, which we have determined to be as of the last business day of fiscal September each year. We also test goodwill for impairment between annual tests if an event occurs or circumstances change that would, more likely than not, reduce the fair value of the reporting unit below its carrying value. We test goodwill impairment by comparing the fair value of the reporting unit with the unit’s carrying amount, including goodwill. Goodwill is allocated to reporting units based on relative fair value using a discounted cash flow model. If this test indicates that the fair value is less than the carrying value, then an impairment loss is recognized limited to the total amount of goodwill allocated to that reporting unit. A non-cash goodwill impairment charge would have the effect of decreasing earnings or increasing losses in such period. If we are required to take a substantial impairment charge, our operating results would be materially adversely affected in such period. As of October 29, 2022 and October 30, 2021, the goodwill balance was $328.3 million and $311.6 million, respectively. There were no goodwill impairments resulting from our fiscal 2022 and 2021 impairment tests and no reporting unit was determined to be at risk of failing the goodwill impairment test. See Note 14 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report. Long-lived Assets Our long-lived assets include equipment, building, furniture and fixtures, operating right-of-use assets, finite-lived intangible assets and maintenance spares. As of October 29, 2022 and October 30, 2021 these assets totaled $427.2 million and $450.3 million, net, respectively. We test long-lived assets for impairment whenever triggering events or changes in circumstances indicate that the assets’ carrying amount is not recoverable from its undiscounted cash flows. Our long-lived assets are assigned to asset groups which represent the lowest level for which we identify cash flows. We measure impairment loss as the amount by which the carrying amount of the asset or asset group exceeds its fair value. 75 Deferred Tax Assets Pursuant to ASC Topic 740, Income Taxes, we maintain a valuation allowance for a deferred tax asset when it is deemed to be more likely than not that some or all of the deferred tax asset will not be realized. The ultimate realization of deferred tax assets is dependent on the generation of future taxable income (including the reversals of deferred tax liabilities) during the periods in which those deferred tax assets will become deductible. In evaluating whether a valuation allowance is required under such rules, we consider all available positive and negative evidence, including prior operating results, the nature and reason for any losses, our forecast of future taxable income, utilization of tax planning strategies, and the dates on which any deferred tax assets are expected to expire. These assumptions and estimates require a significant amount of judgment and are made based on current and projected circumstances and conditions. Quarterly, we perform an analysis to determine the likelihood of realizing our deferred tax assets and whether sufficient evidence exists to support reversal of all or a portion of the valuation allowance. The valuation allowance balances at October 29, 2022 and October 30, 2021 were $162.1 million and $159.6 million, respectively. The corresponding net deferred tax assets were $824.0 million and $800.2 million, respectively. We will continue to evaluate future financial performance to determine whether such performance is both sustained and significant enough to provide sufficient evidence to support reversal of all or a portion of the remaining valuation allowance. The value of our net deferred tax asset may be subject to change in the future, depending on our generation or projections of future taxable income, as well as changes in tax policy or our tax planning strategy. During fiscal 2021, we completed an internal transfer of certain of our non-U.S. intangible assets, which created amortizable tax basis resulting in the discrete recognition of a $119.3 million deferred tax asset with a corresponding tax benefit. The recognition of the deferred tax asset from the internal transfer of the non-U.S. intangible assets requires management to make estimates and assumptions to determine the fair value of the intangible assets transferred and significant judgments in evaluating the application of tax laws in the applicable jurisdictions, including where the deferred tax asset will be recovered. Estimates in valuing the intangible assets include, but are not limited to, internal revenue and expense forecasts, the estimated life of the intangible assets, and discount rates, which are affected by expectations about future market or economic conditions. Although we believe the assumptions and estimates that we have made are reasonable and appropriate, they are based, in part, on historical experience and are inherently uncertain. For further discussion, see Note 23 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report. Warranty Our liability for product warranties, included in accrued liabilities and other short-term obligations, was $45.5 million and $48.0 million as of October 29, 2022 and October 30, 2021, respectively. Our products are generally covered by a warranty for periods ranging from one to five years. We accrue for warranty costs as part of our cost of goods sold based on associated material costs, technical support labor costs and associated overhead. Material cost is estimated based primarily on historical trends in the volume of product returns within the warranty period and the cost to repair or replace the equipment. Technical support labor cost is estimated based primarily on historical trends and the cost to support customer repairs within the warranty period. The provision for product warranties, net of adjustments for previous years’ provisions, was $17.4 million, $17.1 million and $22.4 million for fiscal 2022, 2021 and 2020, respectively. The provision for warranty claims may fluctuate on a quarterly basis depending on the mix of products and customers in that period. If actual product failure rates, material replacement costs, service or labor costs differ from our estimates, revisions to the estimated warranty provision would be required. See Note 15 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report. 76 Effects of Recent Accounting Pronouncements See Note 1 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report for information relating to our discussion of the effects of recent accounting pronouncements. Item 7A. Quantitative and Qualitative Disclosures About Market Risk We are exposed to market risk related to changes in interest rates and foreign currency exchange rates. The following discussion about these market risks includes forward-looking statements. Actual results could differ materially from those projected in these forward-looking statements. Interest Rate Sensitivity. We maintain an investment portfolio of various holdings, types, and maturities. See Notes 7 and 8 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report for information relating to investments and fair value. These investments are sensitive to interest rate movements, and their fair value will decline as interest rates rise and increase as interest rates decline. The estimated impact on these investments of a 100 basis point (1.0%) increase in interest rates across the yield curve from rates in effect as of the balance sheet date would be a $1.2 million decline in value. Our earnings and cash flows from operations would be exposed to changes in interest rates because of the floating rate of interest in our 2025 Term Loan if such loan was not hedged using floating-to-fixed rate interest rate swaps. See Note 16 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report. We have entered into interest rate swap arrangements (“interest rate swaps”) that fix the floating rate for $350.0 million of the 2025 Term Loan at 2.957% through September 2023, and at 2.968% from October 2023 through September 2025. As such, a 100 basis point (1.0%) increase in the LIBOR rate as of our most recent LIBOR rate setting would increase our annualized interest expense by approximately $3.3 million on the unhedged portion of our 2025 Term Loan as recognized in our Consolidated Financial Statements. See Notes 16 and 19 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report for information relating to our 2025 Term Loan. Foreign Currency Exchange Risk. As a global concern, our business and results of operations are exposed to and can be impacted by movements in foreign currency exchange rates. Because we sell globally, some of our sales transactions and revenue are non-U.S. Dollar denominated, with the Euro, Canadian Dollar and British Pound being our most significant foreign currency revenue exposures. If the U.S. Dollar strengthens against these currencies, our revenue for these transactions reported in U.S. Dollars would decline. For our U.S. Dollar denominated sales, an increase in the value of the U.S. Dollar would increase the real costs of our products to customers in markets outside the United States, which could impact our competitive position. During fiscal 2022, approximately 13.7% of revenue was non-U.S. Dollar denominated. During fiscal 2022 as compared to fiscal 2021, the U.S. Dollar strengthened against a number of foreign currencies. Consequently, our revenue reported in U.S. Dollars was adversely impacted by approximately $32.0 million or 0.9%. As it relates to costs of goods sold, employee-related and facilities costs associated with certain manufacturing-related operations in Canada represent our primary exposure to foreign currency exchange risk. With regard to operating expense, our primary exposure to foreign currency exchange risk relates to the Euro, Canadian Dollar and Indian Rupee. During fiscal 2022, approximately 50.0% of our operating expense was non-U.S. Dollar denominated. If currencies strengthen against the U.S. Dollar, costs reported in U.S. Dollars will increase. During fiscal 2022 as compared to fiscal 2021, the U.S. Dollar primarily strengthened against these and other currencies. Consequently, our operating expense reported in U.S. Dollars decreased by approximately $25.5 million, or 1.9%, net of hedging. From time to time, we use foreign currency forward contracts to reduce variability in certain forecasted non-U.S. Dollar denominated cash flows. Generally, these derivatives have maturities of 24 months or less and are designated as cash flow hedges. At the inception of the cash flow hedge, and on an ongoing basis, we assess 77 whether the forward contract has been effective in offsetting changes in cash flows attributable to the hedged risk during the hedging period. The derivative’s net gain or loss is initially reported as a component of accumulated other comprehensive income (loss) and, upon the occurrence of the forecasted transaction, is subsequently reclassified to the line item in the Consolidated Statements of Operations to which the hedged transaction relates. During fiscal 2022, we recorded $2.5 million in foreign currency exchange gains, as a result of monetary assets and liabilities that were transacted in a currency other than the entity’s functional currency, and the re-measurement adjustments were recorded in interest and other income (loss), net on our Consolidated Statements of Operations. From time to time, we use foreign currency forwards to hedge these balance sheet exposures. These forwards are not designated as hedges for accounting purposes, and any net gain or loss associated with these derivatives is reported in interest and other income (loss), net. During fiscal 2022, we recorded losses on non-hedge designated foreign currency forward contracts of $4.0 million. See Notes 1, 6 and 16 to our Consolidated Financial Statements included in Item 8 of Part II of this annual report. 78 Item 8. Financial Statements and Supplementary Data The following is an index to the consolidated financial statements: Report of Independent Registered Public Accounting Firm (PCAOB ID 238) Consolidated Balance Sheets Consolidated Statements of Operations Consolidated Statements of Comprehensive Income Consolidated Statements of Changes in Stockholders’ Equity Consolidated Statements of Cash Flows Notes to Consolidated Financial Statements Note 1: Ciena Corporation and Significant Accounting Policies and Estimates Note 2: Revenue Note 3: Canadian Emergency Wage Subsidy Note 4: Business Combinations Note 5: Significant Asset Impairment and Restructuring Costs Note 6: Interest and Other Income (Loss) Note 7: Cash Equivalent, Short-Term and Long-Term Investments Note 8: Fair Value Measurements Note 9: Accounts Receivable Note 10: Inventories Note 11: Prepaid Expenses and Other Note 12: Equipment, Building, Furniture and Fixtures Note 13: Intangible Assets Note 14: Goodwill Note 15: Other Balance Sheet Details Note 16: Derivative Instruments Note 17: Accumulated Other Comprehensive Income Note 18: Leases Note 19: Short-Term and Long-Term Debt Note 20: ABL Credit Facility Note 21: Earnings per Share Calculation Note 22: Stockholders’ Equity Note 23: Income Taxes Note 24: Share-Based Compensation Expense Note 25: Segment and Entity Wide Disclosures Note 26: Other Employee Benefit Plans Note 27: Commitments and Contingencies Note 28: Subsequent Events Page Number 80 83 84 85 86 87 88 88 99 103 104 105 106 107 108 109 110 111 111 111 112 112 113 115 115 117 119 119 120 121 124 127 129 129 130 79 Report of Independent Registered Public Accounting Firm To the Board of Directors and Stockholders of Ciena Corporation Opinions on the Financial Statements and Internal Control over Financial Reporting We have audited the accompanying consolidated balance sheets of Ciena Corporation and its subsidiaries (the “Company”) as of October 29, 2022 and October 30, 2021, and the related consolidated statements of operations, of comprehensive income, of changes in stockholders’ equity and of cash flows for each of the three years in the period ended October 29, 2022, including the related notes (collectively referred to as the “consolidated financial statements”). We also have audited the Company’s internal control over financial reporting as of October 29, 2022, based on criteria established in Internal Control—Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of October 29, 2022 and October 30, 2021, and the results of its operations and its cash flows for each of the three years in the period ended October 29, 2022 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of October 29, 2022, based on criteria established in Internal Control—Integrated Framework (2013) issued by the COSO. Basis for Opinions The Company’s management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the Report of Management on Internal Control Over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company’s internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions. 80 Definition and Limitations of Internal Control over Financial Reporting A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. Critical Audit Matters The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates. Reserve for Excess and Obsolete Inventory As described in Notes 1 and 10 to the consolidated financial statements, the Company’s consolidated inventory balance, net of the allowance for excess and obsolescence, was $946.7 million as of October 29, 2022. Management records a provision for excess and obsolete inventory when an impairment has been identified and has a reserve for excess and obsolete inventory of $36.1 million as of October 29, 2022. Management writes down its inventory for estimated obsolescence or unmarketable inventory by an amount equal to the difference between the cost of inventory and the estimated net realizable value based on assumptions about future demand, which are affected by changes in the Company’s strategic direction, discontinuance of a product or introduction of newer versions of products, declines in the sales of or forecasted demand for certain products, and general market conditions. The principal considerations for our determination that performing procedures relating to the reserve for excess and obsolete inventory is a critical audit matter are the significant judgment by management when developing their estimate, which in turn led to a high degree of auditor judgment and effort to perform procedures and evaluate the audit evidence obtained relating to the assumptions regarding future demand. Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to the Company’s evaluation of the reserve for excess and obsolete inventory, including controls over the assumptions used within the model. These procedures also included, among others, testing management’s process for determining the reserve for excess and obsolete inventory. This included evaluating the appropriateness of the inventory reserve model and the reasonableness of the significant assumptions relating to the future demand. Evaluating the assumptions related to future demand involved evaluating whether the 81 assumptions used were reasonable considering historical sales and expectations regarding future sales. Testing management’s process for determining future demand included procedures to evaluate the reliability, completeness and relevance of management’s data used in the future demand assumption. Testing the relevance and reliability of the data included evaluating the reasonableness of the long-term sales forecasts and historical activity. /s/ PricewaterhouseCoopers LLP Baltimore, Maryland December 16, 2022 We have served as the Company’s auditor since 1992. 82 CIENA CORPORATION CONSOLIDATED BALANCE SHEETS (in thousands, except share data) ASSETS Current assets: Cash and cash equivalents Short-term investments Accounts receivable, net Inventories, net Prepaid expenses and other Total current assets Long-term investments Equipment, building, furniture and fixtures, net Operating right-of-use assets Goodwill Other intangible assets, net Deferred tax asset, net Other long-term assets Total assets LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT) Current liabilities: Accounts payable Accrued liabilities and other short-term obligations Deferred revenue Operating lease liabilities Current portion of long-term debt Total current liabilities Long-term deferred revenue Other long-term obligations Long-term operating lease liabilities Long-term debt, net Total liabilities Commitments and contingencies (Note 27) Stockholders’ equity: October 29, 2022 October 30, 2021 $ 994,352 153,989 920,772 946,730 370,053 3,385,896 35,385 267,779 45,108 328,322 69,517 824,008 113,617 $ 1,422,546 181,483 884,958 374,265 325,654 3,188,906 70,038 284,968 44,285 311,645 65,314 800,180 99,891 $ 5,069,632 $ 4,865,227 $ 516,047 360,782 137,899 18,925 6,930 1,040,583 62,336 150,335 42,392 1,061,125 $ 356,176 409,285 118,007 18,632 6,930 909,030 57,457 166,803 41,564 670,355 $ 2,356,771 $ 1,845,209 Preferred stock—par value $0.01; 20,000,000 shares authorized; zero shares issued and outstanding Common stock—par value $0.01; 290,000,000 shares authorized; 148,412,943 and 154,858,981 shares issued and outstanding Additional paid-in capital Accumulated other comprehensive income (loss) Accumulated deficit Total stockholders’ equity Total liabilities and stockholders’ equity — — 1,484 6,390,252 (46,645) (3,632,230) 1,549 6,803,162 439 (3,785,132) 2,712,861 3,020,018 $ 5,069,632 $ 4,865,227 The accompanying notes are an integral part of these consolidated financial statements. 83 CIENA CORPORATION CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except per share data) Revenue: Products Services Total revenue Cost of goods sold: Products Services Total cost of goods sold Gross profit Operating expenses: October 29, 2022 October 30, 2021 October 31, 2020 Year Ended $2,888,848 743,813 $2,932,602 688,082 $2,914,790 617,367 3,632,661 3,620,684 3,532,157 1,699,631 372,686 1,545,269 353,436 1,573,791 305,475 2,072,317 1,898,705 1,879,266 1,560,344 1,721,979 1,652,891 Research and development Selling and marketing General and administrative Significant asset impairments and restructuring costs Amortization of intangible assets Acquisition and integration costs 624,656 466,565 179,382 33,824 32,511 598 536,666 452,214 181,874 29,565 23,732 2,572 529,888 416,425 169,548 22,652 23,383 4,031 Total operating expenses 1,337,536 1,226,623 1,165,927 Income from operations Interest and other income (loss), net Interest expense Loss on extinguishment and modification of debt Income before income taxes Provision (benefit) for income taxes Net income Basic net income per common share Diluted net income per potential common share Weighted average basic common shares outstanding Weighted average diluted potential common shares outstanding 222,808 6,747 (47,050) — 182,505 29,603 495,356 (1,768) (30,837) — 462,751 (37,445) 486,964 964 (31,321) (646) 455,961 94,670 $ 152,902 $ 500,196 $ 361,291 $ $ 1.01 1.00 $ $ 3.22 3.19 $ $ 2.34 2.32 151,208 152,193 155,279 156,743 154,287 155,955 The accompanying notes are an integral part of these consolidated financial statements. 84 CIENA CORPORATION CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (in thousands) Net income Change in unrealized loss on available-for-sale securities, net of Year Ended October 29, 2022 October 30, 2021 October 31, 2020 $152,902 $500,196 $361,291 tax (2,801) (209) (107) Change in unrealized gain (loss) on foreign currency forward contracts, net of tax (16,413) 6,435 (1,144) Change in unrealized gain (loss) on forward starting interest rate swaps, net of tax Change in accumulated translation adjustments Other comprehensive income gain (loss) Total comprehensive income 21,576 (49,446) (47,084) 9,356 20,215 35,797 (7,849) (4,174) (13,274) $105,818 $535,993 $348,017 The accompanying notes are an integral part of these consolidated financial statements. 85 CIENA CORPORATION CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (in thousands, except share data) Balance at November 2, 2019 Net income Other comprehensive loss Repurchases of common stock- repurchase program Issuance of shares from employee equity plans Share-based compensation expense Shares repurchased for tax withholdings on vesting of stock unit awards Balance at October 31, 2020 Net income Other comprehensive income Repurchases of common stock- repurchase program Issuance of shares from employee equity plans Share-based compensation expense Shares repurchased for tax withholdings on vesting of stock unit awards Effect of adoption of new Common Stock Shares Par Value Additional Paid-in-Capital Accumulated Other Comprehensive Income (Loss) Accumulated Deficit Total Stockholders’ Equity 154,403,850 $1,544 — — — — $6,837,714 — — $(22,084) — (13,274) $(4,644,413) $2,172,761 361,291 (13,274) 361,291 — (1,872,446) (19) (74,516) 2,787,011 29 28,039 — — 67,758 — — — — (74,535) — 28,068 — 67,758 (755,410) (8) (32,464) — — (32,472) 154,563,005 — — 1,546 — — 6,826,531 — — (35,358) — 35,797 (4,283,122) 2,509,597 500,196 35,797 500,196 — (1,696,949) (17) (92,071) 2,826,399 28 28,429 — — 84,336 (833,474) (8) (44,063) — — — — — — (92,088) — 28,457 — 84,336 — (44,071) (2,206) (2,206) accounting standard (Note 1) — — — Balance at October 30, 2021 Net income Other comprehensive loss Repurchases of common stock- repurchase program Issuance of shares from employee equity plans Share-based compensation expense Shares repurchased for tax withholdings on vesting of stock unit awards 154,858,981 — — 1,549 — — 6,803,162 — — 439 — (47,084) (3,785,132) 3,020,018 152,902 (47,084) 152,902 — (8,433,957) (84) (499,916) 2,807,123 27 30,321 — — 105,131 — — — — (500,000) — 30,348 — 105,131 (819,204) (8) (48,446) — — (48,454) Balance at October 29, 2022 148,412,943 $1,484 $6,390,252 $(46,645) $(3,632,230) $2,712,861 The accompanying notes are an integral part of these consolidated financial statements. 86 CIENA CORPORATION CONSOLIDATED STATEMENTS OF CASH FLOWS (in thousands) Cash flows provided by (used in) operating activities: Net income Adjustments to reconcile net income to net cash provided by (used in) operating activities: Depreciation of equipment, building, furniture and fixtures, and amortization of leasehold improvements Share-based compensation costs Amortization of intangible assets Deferred taxes Provision for inventory excess and obsolescence Provision for warranty Other Changes in assets and liabilities: Accounts receivable Inventories Prepaid expenses and other Operating lease right-of-use assets Accounts payable, accruals and other obligations Deferred revenue Short and long-term operating lease liabilities Net cash provided by (used in) operating activities Cash flows used in investing activities: Payments for equipment, furniture, fixtures and intellectual property Purchase of available-for-sale securities Proceeds from maturities of available for sale securities Proceeds from sale of cost method equity investment Purchase of cost method equity investment Settlement of foreign currency forward contracts, net Acquisition of businesses, net of cash acquired Net cash used in investing activities Cash flows used in financing activities: Proceeds from issuance of senior notes Payment of long-term debt Payment of debt issuance costs Payment of finance lease obligations Shares repurchased for tax withholdings on vesting of stock unit awards Repurchases of common stock - repurchase program Proceeds from issuance of common stock Net cash used in financing activities Effect of exchange rate changes on cash, cash equivalents and restricted cash Net increase (decrease) in cash, cash equivalents and restricted cash Cash, cash equivalents and restricted cash at beginning of fiscal year October 29, 2022 October 30, 2021 October 31, 2020 Year Ended $ 152,902 $ 500,196 $ 361,291 95,922 105,131 44,281 (27,502) 16,184 17,440 — (47,069) (589,113) (58,996) 16,453 100,327 26,380 (20,096) (167,756) (90,818) (643,971) 698,642 — (8,000) 4,942 (62,043) (101,248) 400,000 (5,197) (5,484) (3,468) (48,454) (500,800) 30,348 (133,055) (26,167) (428,226) 1,422,604 96,233 84,336 36,033 (156,469) 17,850 17,093 14,525 (174,377) (47,567) (19,691) 16,632 162,134 16,822 (22,104) 541,646 (79,550) (172,778) 152,253 4,678 — 4,680 — (90,717) — (6,929) — (3,004) (44,071) (91,288) 28,457 (116,835) (198) 333,896 1,088,708 93,908 67,758 38,619 64,339 24,701 22,417 20,483 (17,299) (25,044) (38,998) 16,787 (117,931) 2,519 (19,896) 493,654 (82,667) (223,196) 110,390 — — 3,531 (28,300) (220,242) — (5,198) (382) (2,703) (32,472) (74,535) 28,068 (87,222) (1,643) 184,547 904,161 Cash, cash equivalents and restricted cash at end of fiscal year $ 994,378 $1,422,604 $1,088,708 Supplemental disclosure of cash flow information Cash paid during the fiscal year for interest Cash paid during the fiscal year for income taxes, net Operating lease payments Non-cash investing and financing activities Purchase of equipment in accounts payable Repurchase of common stock in accrued liabilities from repurchase program Operating lease right-of-use assets subject to lease liability Unrealized gain on equity investment $ $ $ $ $ $ $ 42,812 34,967 21,661 12,373 — 23,242 4,120 $ $ $ $ $ $ $ 29,864 73,127 24,058 10,138 800 4,356 — $ $ $ $ $ $ $ 32,837 53,076 22,089 7,854 — 24,160 2,681 The accompanying notes are an integral part of these consolidated financial statements. 87 CIENA CORPORATION NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (1) CIENA CORPORATION AND SIGNIFICANT ACCOUNTING POLICIES AND ESTIMATES Description of Business Ciena Corporation (“Ciena” or the “Company”) is a networking systems, services and software company, providing solutions that enable a wide range of network operators to deploy and manage next-generation networks that deliver services to businesses and consumers. Ciena provides hardware, software and services that support the delivery of video, data and voice traffic over core, metro, aggregation and access communications networks. Ciena’s solutions are used globally by communications service providers, cable and multiservice operators, Web-scale providers, submarine network operators, governments, and enterprises across multiple industry verticals. Ciena’s portfolio is designed to enable the Adaptive Network™, Ciena’s vision for a network end state that leverages a programmable and scalable network infrastructure, driven by software control and automation capabilities, that are informed by analytics and intelligence. By transforming network infrastructures into a dynamic, programmable environment driven by automation and analytics, network operators can realize greater business agility, dynamically adapt to changing end-user service demands and rapidly introduce new revenue- generating services. They can also gain valuable real-time network insights, allowing them to optimize network performance and maximize the return on their network infrastructure investment. Ciena’s solutions include Networking Platforms, including its Converged Packet Optical and Routing and Switching portfolios, which can be applied from the network core to end-user access points, and which allow network operators to scale capacity, increase transmission speeds, allocate traffic efficiently and adapt dynamically to changing end-user service demands. Ciena’s Converged Packet Optical portfolio includes products that support long haul and regional networks, submarine and data center interconnect networks, and metro and edge networks. Ciena’s Routing and Switching portfolio includes products and solutions that enable efficient internet protocol (“IP”) transport in next-generation metro edge, access and aggregation networks. To complement its Networking Platforms, Ciena offers Platform Software, which includes its Manage, Control and Plan (“MCP”) applications that deliver advanced multi-layer domain control and operations. Ciena, through its Blue Planet® Software, also enables complete service lifecycle management automation with productized operational support systems (“OSSs”) and service assurance solutions that help its customers to achieve closed loop automation across multi-vendor and multi-domain environments. In addition to its systems and software, Ciena also offers a broad range of services that help its customers build, operate and improve their networks and associated operational environments. These include network transformation, consulting, implementation, systems integration, maintenance, network operations center (“NOC”) management, learning, and optimization services. Basis of Presentation The accompanying consolidated financial statements include the accounts of Ciena and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. Ciena has a 52 or 53-week fiscal year, which ends on the Saturday nearest to the last day of October in each year (October 29, 2022, October 30, 2021 and October 31, 2020 for the periods reported). Fiscal 2022, fiscal 2021 and fiscal 2020 each consisted of a 52-week fiscal year. Business Combinations Ciena records acquisitions using the purchase method of accounting. All of the assets acquired, liabilities assumed, contractual contingencies and contingent consideration are recognized at their fair value as of the 88 acquisition date. The excess of the purchase price over the estimated fair values of the net tangible and net intangible assets acquired is recorded as goodwill. The application of the purchase method of accounting for business combinations requires management to make significant estimates and assumptions in the determination of the fair value of assets acquired and liabilities assumed, in order to properly allocate purchase price consideration between assets that are depreciated and amortized from goodwill. These assumptions and estimates include a market participant’s use of the asset and the appropriate discount rates for a market participant. Ciena’s estimates are based on historical experience, information obtained from the management of the acquired companies and, when appropriate, include assistance from independent third-party appraisal firms. Significant assumptions and estimates can include, but are not limited to, the cash flows that an asset is expected to generate in the future, the appropriate weighted-average cost of capital and the cost savings expected to be derived from acquiring an asset. These estimates are inherently uncertain and unpredictable. In addition, unanticipated events and circumstances may occur which may affect the accuracy or validity of such estimates. Use of Estimates The preparation of the financial statements and related disclosures in conformity with Generally Accepted Accounting Principles (“GAAP”) requires management to make estimates and judgments that affect the amounts reported in the consolidated financial statements and accompanying notes. Estimates are used for selling prices for multiple element arrangements, shared-based compensation, bad debts, valuation of inventories and investments, recoverability of intangible assets, other long-lived assets and goodwill, income taxes, warranty obligations, restructuring liabilities, derivatives, contingencies and litigation. Ciena bases its estimates on historical experience and assumptions that it believes are reasonable. Actual results may differ materially from management’s estimates. Cash and Cash Equivalents Ciena considers all highly liquid investments purchased with original maturities of three months or less to be cash equivalents. Any restricted cash collateralizing letters of credit is included in other current assets and other long-term assets depending on the duration of the restriction. Investments Ciena’s investments in debt securities are classified as available-for-sale and reported at fair value, with unrealized gains and losses recorded in accumulated other comprehensive income (loss). Ciena recognizes losses in the income statement when it determines that declines in the fair value of its investments below their cost basis are other-than-temporary. In determining whether a decline in fair value is other-than-temporary, Ciena considers various factors, including market price (when available), investment ratings, the financial condition and near- term prospects of the investee, the length of time and the extent to which the fair value has been less than Ciena’s cost basis, and Ciena’s intent and ability to hold the investment until maturity or for a period of time sufficient to allow for any anticipated recovery in market value. Ciena considers all marketable debt securities that it expects to convert to cash within one year or less to be short-term investments, with all others considered to be long-term investments. Ciena has minority equity investments in privately held technology companies that are classified in other long-term assets. These investments are carried at cost because Ciena owns less than 20% of the voting equity and does not have the ability to exercise significant influence over the company. Ciena monitors these investments for impairment and makes appropriate reductions to the carrying value when necessary. As of October 29, 2022, the combined carrying value of these investments was $20.7 million. Ciena elects to estimate the fair value at cost minus impairment, if any, plus or minus observable price changes in orderly transactions for identical or similar investments of the same issuer. Ciena evaluates these investments for impairment or observable price changes quarterly and records adjustments to interest and other income (loss), net on the Consolidated Statements of Operations. 89 Inventories Inventories are stated at the lower of cost or market, with cost computed using standard cost, which approximates actual cost, on a first-in, first-out basis. Ciena records a provision for excess and obsolete inventory when an impairment has been identified. Segment Reporting Ciena’s chief operating decision maker, its chief executive officer, evaluates the Company’s performance and allocates resources based on multiple factors, including measures of segment profit (loss). Operating segments are defined as components of an enterprise that engage in business activities that may earn revenue and incur expense, for which discrete financial information is available, and for which such information is evaluated regularly by the chief operating decision maker for purposes of allocating resources and assessing performance. Ciena has the following operating segments for reporting purposes: (i) Networking Platforms; (ii) Platform Software and Services; (iii) Blue Planet Automation Software and Services; and (iv) Global Services. See Note 25 below. Goodwill Goodwill is the excess of the purchase price over the fair values assigned to the net assets acquired in a business combination. Ciena tests goodwill for impairment on an annual basis, which it has determined to be the last business day of fiscal September each year. Ciena also tests goodwill for impairment between annual tests if an event occurs or circumstances change that would, more likely than not, reduce the fair value of the reporting unit below its carrying value. Annually, Ciena tests goodwill impairment qualitatively, or quantitatively by comparing the fair value of the reporting unit with the unit’s carrying amount, including goodwill. If this test indicates that the fair value is less than the carrying value, then an impairment loss is recognized limited to the total amount of goodwill allocated to that reporting unit. A non-cash goodwill impairment charge would have the effect of decreasing earnings or increasing losses in such period. If Ciena is required to take a substantial impairment charge, its operating results would be materially adversely affected in such period. Long-lived Assets Long-lived assets include: equipment, building, furniture and fixtures, operating right-of-use (“ROU”) assets, finite-lived intangible assets and maintenance spares. Ciena tests long-lived assets for impairment whenever triggering events or changes in circumstances indicate that the asset’s carrying amount is not recoverable from its undiscounted cash flows. An impairment loss is measured as the amount by which the carrying amount of the asset or asset group exceeds its fair value. Ciena’s long-lived assets are assigned to asset groups that represent the lowest level for which cash flows can be identified. Equipment, Building, Furniture and Fixtures and Internal Use Software Equipment, building, furniture and fixtures are recorded at cost. Depreciation and amortization are computed using the straight-line method, generally over useful lives of three years to five years for equipment and furniture and fixtures and the shorter of useful life or lease term for leasehold improvements. Qualifying internal use software and website development costs incurred during the application development stage, which consist primarily of outside services and purchased software license costs, are capitalized and amortized straight-line over the estimated useful lives of two years to five years. Leases At the inception of a contract, Ciena must determine whether the contract is or contains a lease. The contract is or contains a lease if the contract conveys the right to control the use of the property, plant, or equipment for a 90 designated term in exchange for consideration. Ciena’s evaluation of its contracts follows the assessment of whether there is a right to obtain substantially all of the economic benefits from the use and the right to direct the use of the identified asset in the contract. Operating leases are included in the Operating ROU assets, Operating lease liabilities and Long-term operating lease liabilities in the Consolidated Balance Sheets. Finance leases are included in Equipment, building, furniture and fixtures, net (“Finance ROU assets”), Accrued liabilities and other short-term obligations and Other long-term obligations in the Consolidated Balance Sheets. Ciena has operating and finance leases that primarily relate to real property. Ciena has elected not to capitalize leases with a term of 12 months or less without a purchase option that it is likely to exercise. Ciena has elected not to separate lease and non-lease components of operating and finance leases. Lease components are payment items directly attributable to the use of the underlying asset, while non-lease components are explicit elements of a contract not directly related to the use of the underlying asset, including pass-through operating expenses like common area maintenance and utilities. Operating ROU assets and lease liabilities and Finance ROU assets and lease liabilities are recognized on the Consolidated Balance Sheets at the present value of the future lease payments over the life of the lease term. Ciena uses discount rates based on incremental borrowing rates, on a collateralized basis, for the respective underlying assets, for terms similar to the respective leases when implicit rates for leases are not determinable. Operating lease costs are included as rent expense in the Consolidated Statements of Operations. Fixed base payments on operating leases paid directly to the lessor are recorded as lease expense on a straight-line basis. Related variable payments based on usage, changes in an index, or market rate are expensed as incurred. Finance ROU assets are generally amortized on a straight-line basis over the lease term with the interest expense on the lease liability recorded using the interest method. The amortization and interest expense are recorded separately in the Consolidated Statements of Operations. Intangible Assets Ciena has recorded finite-lived intangible assets as a result of several acquisitions. Finite-lived intangible assets are carried at cost less accumulated amortization. Amortization is computed using the straight-line method over the expected economic lives of the respective assets, up to seven years, which approximates the use of intangible assets. Maintenance Spares Maintenance spares are recorded at cost. Spares usage cost is expensed ratably over four years. Concentrations Substantially all of Ciena’s cash and cash equivalents are maintained at a small number of major U.S. financial institutions. The majority of Ciena’s cash equivalents consist of money market funds. Deposits held with banks may exceed the amount of insurance provided on such deposits. Because these deposits generally may be redeemed upon demand, management believes that they bear minimal risk. Historically, a significant percentage of Ciena’s revenue has been concentrated among sales to a small number of large communications service providers and Web-scale providers. Consolidation among Ciena’s customers has increased this concentration. Consequently, Ciena’s accounts receivable are concentrated among these customers. See Note 2 below. Additionally, Ciena’s access to certain materials or components is dependent on sole or limited source suppliers. The inability of any of these suppliers to fulfill Ciena’s supply requirements, or significant changes in supply cost, could affect future results. Ciena relies on a small number of contract manufacturers to perform the majority of the manufacturing for its products. If Ciena cannot effectively manage these manufacturers or forecast future demand, or if these manufacturers fail to deliver products or components on time, Ciena’s business and results of operations may suffer. 91 Revenue Recognition Ciena recognizes revenue when control of the promised products or services is transferred to its customer, in an amount that reflects the consideration to which Ciena expects to be entitled in exchange for those products or services. Ciena determines revenue recognition by applying the following five-step approach: • • • • • identification of the contract, or contracts, with a customer; identification of the performance obligations in the contract; determination of the transaction price; allocation of the transaction price to the performance obligations in the contract; and recognition of revenue when, or as, Ciena satisfies a performance obligation. Generally, Ciena makes sales pursuant to purchase orders placed by customers under framework agreements that govern the general commercial terms and conditions of the sale of Ciena’s products and services. These purchase orders under framework agreements are used to determine the identification of the contract or contracts with this customer. Purchase orders typically include the description, quantity, and price of each product or service purchased. Purchase orders may include one-line bundled pricing for both products and services. Accordingly, purchase orders can include various combinations of products and services that are generally distinct and accounted for as separate performance obligations. Ciena evaluates each promised product and service offering to determine whether it represents a distinct performance obligation. In doing so, Ciena considers, among other things, customary business practices, whether the customer can benefit from the product or service on its own or together with other resources that are readily available, and whether Ciena’s commitment to transfer the product or service to the customer is separately identifiable from other obligations in the purchase order. For transactions where Ciena delivers the product or services, Ciena is typically the principal and records revenue and costs of goods sold on a gross basis. Purchase orders are invoiced based on the terms set forth either in the purchase order or the framework agreement, as applicable. Generally, sales of products and software licenses are invoiced upon shipment or delivery. Maintenance and software subscription services are invoiced quarterly or annually in advance of the service term. Ciena’s other service offerings are generally invoiced upon completion of the service. Payment terms and cash received typically range from 30 to 90 days from the invoicing date. Historically, Ciena has not provided any material financing arrangements to its customers. As a practical expedient, Ciena does not adjust the amount of consideration it will receive for the effects of a significant financing component as it expects, at contract inception, that the period between Ciena’s transfer of the products or services to the customer and customer payment for the products or services will be one year or less. Shipping and handling fees invoiced to customers are included in revenue, with the associated expense included in product cost of goods sold. Ciena records revenue net of any associated sales taxes. Ciena recognizes revenue upon the transfer of control of promised products or services to a customer. Transfer of control occurs once the customer has the contractual right to use the product, generally upon shipment or delivery to the customer. Transfer of control can also occur over time for services such as software subscription, maintenance, installation, and various professional services as the customer receives the benefit over the contract term. Significant Judgments Revenue is allocated among performance obligations based on standalone selling price (“SSP”). SSP reflects the price at which Ciena would expect to sell that product or service on a stand-alone basis at contract 92 inception and that Ciena would expect to be entitled to receive for the promised products or services. SSP is estimated for each distinct performance obligation, and judgment may be required in its determination. The best evidence of SSP is the observable price of a product or service when Ciena sells the products separately in similar circumstances and to similar customers. In instances where SSP is not directly observable, Ciena determines SSP using information that may include market conditions and other observable inputs. Ciena applies judgment in determining the transaction price, as Ciena may be required to estimate variable consideration when determining the amount of revenue to recognize. Variable consideration can include various rebate, cooperative marketing, and other incentive programs that Ciena offers to its distributors, partners and customers. When determining the amount of revenue to recognize, Ciena estimates the expected usage of these programs, applying the expected value or most likely estimate and updates the estimate at each reporting period as actual utilization data becomes available. Ciena also considers any customer right of return and any actual or potential payment of liquidated damages, contractual or similar penalties, or other claims for performance failures or delays in determining the transaction price, where applicable. When transfer of control is judged to be over time for installation and professional service arrangements, Ciena applies the input method to determine the amount of revenue to be recognized in a given period. Utilizing the input method, Ciena recognizes revenue based on the ratio of actual costs incurred to date to the total estimated costs expected to be incurred. Revenue for software subscription and maintenance is recognized ratably over the period during which the services are performed. Capitalized Contract Acquisition Costs Ciena has considered the impact of the guidance in ASC 340-40, Other Assets and Deferred Costs; Contracts with Customers, and the interpretations of the Financial Accounting Standards Board (“FASB”) Transition Resource Group for Revenue Recognition with respect to capitalization and amortization of incremental costs of obtaining a contract. In conjunction with this interpretation, Ciena considers each customer purchase in combination with the corresponding framework agreement, if applicable, as a contract. Ciena has elected to implement the practical expedient, which allows for incremental costs to be recognized as an expense when incurred if the period of the asset recognition is one year or less. If the period of the asset recognition is greater than one year, Ciena amortizes these costs over the period of performance. Ciena considers sales commissions incurred upon receipt of purchase orders placed by customers as incremental costs to obtain such purchase orders. The practical expedient method is applied to the purchase order as a whole and thus the capitalized costs of obtaining a purchase order is applied even if the purchase order contains more than one performance obligation. In cases where a purchase order includes various distinct products or services with both short-term (one year or less) and long-term (more than a year) performance periods, the cost of commissions incurred for the total value of the purchase order is capitalized and subsequently amortized as each performance obligation is recognized. For the additional disclosures on capitalized contract acquisition costs, see Note 2 below. Warranty Accruals Ciena provides for the estimated costs to fulfill customer warranty obligations upon recognition of the related revenue. Estimated warranty costs include estimates for material costs, technical support labor costs and associated overhead. Warranty is included in cost of goods sold and is determined based on actual warranty cost experience, estimates of component failure rates and management’s industry experience. Ciena’s sales contracts do not permit the right of return of the product by the customer after the product has been accepted. Allowance for Credit Losses for Accounts Receivable and Contract Assets Ciena estimates its allowances for credit losses using relevant available information from internal and external sources, related to past events, current conditions and reasonable and supportable forecasts. Historical 93 credit loss experience provides the basis for the estimation of expected credit losses. When assessing for credit losses, Ciena determines collectability by pooling assets with similar characteristics. The allowances for credit losses are each measured on a collective basis when similar risk characteristics exist. The allowances for credit losses are each measured by multiplying the exposure probability of default (the probability the asset will default within a given time frame) by the loss given default rate (the percentage of the asset not expected to be collected due to default) based on the pool of assets. Probability of default rates are published by third-party credit rating agencies. Adjustments to Ciena’s exposure probability may take into account a number of factors, including, but not limited to, various customer- specific factors, the potential sovereign risk of the geographic locations in which the customer is operating and macroeconomic conditions. These factors are updated regularly or when facts and circumstances indicate that an update is deemed necessary. Accounts Receivable Factoring Ciena has entered into factoring agreements to sell certain receivables to unrelated third-party financial institution on a non-recourse basis. These transactions are accounted for in accordance with ASC Topic 860, “Transfers and Servicing” and result in a reduction in accounts receivable because the agreements transfer effective control over and risk related to the receivables to the buyers. Ciena’s factoring agreements do not allow for recourse in the event of uncollectability, and Ciena does not retain any interest in the underlying accounts receivable once sold. Trade accounts receivables balances sold are removed from the consolidated balance sheets and cash received is reflected as cash provided by (used in) operating activities in the Consolidated Statements of Cash Flow. Factoring related interest expense is recorded to interest and other income (loss), net on the Consolidated Statements of Operations. See Note 9 below. Research and Development Ciena charges all research and development costs to expense as incurred. Types of expense incurred in research and development include employee compensation, prototype equipment, consulting and third-party services, depreciation, facility costs and information technology. Government Grants Ciena accounts for proceeds from government grants as a reduction of expense when there is reasonable assurance that Ciena has met the required conditions associated with the grant and that grant proceeds will be received. Grant benefits are recorded to the particular line item of the Consolidated Statement of Operations to which the grant activity relates. See Notes 3 below. Advertising Costs Ciena expenses all advertising costs as incurred. Legal Costs Ciena expenses legal costs associated with litigation as incurred. Share-Based Compensation Expense Ciena measures and recognizes compensation expense for share-based awards and employee stock purchases related to its Amended and Restated 2003 Employee Stock Purchase Plan (the “ESPP”) based on estimated fair values on the date of grant. Ciena estimates the fair value of employee stock purchases related to the ESPP using the Black-Scholes option-pricing model. Ciena recognizes the estimated fair value of restricted 94 stock units subject only to service-based vesting conditions by multiplying the number of shares underlying the award by the closing price per share of Ciena common stock on the grant date. In each case, Ciena only recognizes expense in its Consolidated Statements of Operations for those restricted stock units that ultimately vest. Awards with performance-based vesting conditions (i) require the achievement of certain operational, financial or other performance criteria or targets or (ii) vest based on Ciena’s total stockholder return as compared to an index of peer companies, in whole or in part. Ciena recognizes the estimated fair value of restricted stock units subject to performance-based vesting conditions other than total stockholder return by assuming the satisfaction of any performance-based objectives at the “target” level and multiplying the corresponding number of shares earned based upon such achievement by the closing price per share of Ciena common stock on the grant date. Ciena recognizes the estimated fair value of performance based awards subject to total stockholder return as compared to an index of peer companies using a Monte Carlo simulation valuation model on the date of grant. At the end of each reporting period, Ciena reassesses the probability of achieving the performance targets and the performance period required to meet those targets. See Note 24 below. Stock Repurchase Program Shares repurchased pursuant to Ciena’s stock repurchase program are immediately retired upon purchase. Repurchased common stock is reflected as a reduction of stockholders’ equity. Ciena’s accounting policy related to its share repurchases is to reduce its common stock based on the par value of the shares and to reduce its capital surplus for the excess of the repurchase price over the par value. Since the inception of its stock repurchase programs, Ciena has had an accumulated deficit balance; therefore, the excess over the par value has been applied to additional paid-in capital. Once Ciena has retained earnings, the excess will be charged entirely to retained earnings. Income Taxes Ciena accounts for income taxes using an asset and liability approach. This approach recognizes deferred tax assets and liabilities (“DTA”) for the expected future tax consequences attributable to differences between the carrying amounts of assets and liabilities for financial reporting purposes and their respective tax bases, and for operating loss and tax credit carryforwards. In estimating future tax consequences, Ciena considers all expected future events other than the enactment of changes in tax laws or rates. Valuation allowances are provided if, based on the weight of the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. In the ordinary course of business, transactions occur for which the ultimate outcome may be uncertain. In addition, tax authorities periodically audit Ciena’s income tax returns. These audits examine significant tax filing positions, including the timing and amounts of deductions and the allocation of income tax expenses among tax jurisdictions. Ciena is currently under audit in India for 2012 through 2021, in Canada for 2014 through 2016 and 2020 through 2021, and in the United Kingdom for 2016 through 2020. Management does not expect the outcome of these audits to have a material adverse effect on Ciena’s consolidated financial position, results of operations or cash flows. Ciena’s major tax jurisdictions and the earliest open tax years are as follows: United States (2019), United Kingdom (2016), Canada (2014), and India (2012). Limited adjustments can be made to federal U.S. tax returns in earlier years in order to reduce net operating loss carryforwards. Ciena classifies interest and penalties related to uncertain tax positions as a component of income tax expense. Ciena has not provided for U.S. deferred income taxes on the cumulative unremitted earnings of its non-U.S. affiliates, as it plans to indefinitely reinvest these foreign earnings outside the U.S. As of October 29, 2022, the cumulative amount of such temporary differences for which a deferred tax liability has not been recognized totaled approximately $477.0 million. If these earnings were distributed to the U.S. in the form of dividends, or otherwise, or if the shares of the relevant foreign subsidiaries were sold or otherwise transferred, Ciena would be subject to additional U.S. income taxes (subject to an adjustment for foreign tax credits) and foreign withholding taxes. Ciena would also be subject to additional foreign withholding taxes of approximately 95 $33.0 million. Additionally, there are no other significant temporary differences for which a deferred tax liability has not been recognized. Ciena is required to record excess tax benefits or tax deficiencies related to stock-based compensation as income tax benefit or expense when share-based awards vest or are settled. The Tax Cuts and Jobs Act (the “Tax Act”) includes provisions that affected Ciena starting in fiscal 2019, including a provision designed to tax global intangible low-taxed income (“GILTI”). An accounting policy choice is allowed to either treat taxes due on future U.S. inclusions related to GILTI in taxable income as a current-period expense when incurred (the “period cost method”) or factor such amounts into the measurement of deferred taxes (the “deferred method”). The calculation of the deferred balance with respect to the GILTI tax provisions will depend, in part, on analyzing global income to determine whether future U.S. inclusions in taxable income are expected related to GILTI and, if so, what the impact is expected to be. Ciena is electing to use the period cost method for future GILTI inclusions. Additionally, Ciena is electing to use the incremental cash tax savings approach when determining whether a valuation allowance needs to be recorded against the U.S. net operating loss (“NOL”) due to the GILTI inclusions. The Tax Act also introduced an alternative tax known as the base erosion and anti-abuse tax (“BEAT”). An accounting policy choice has been made to consider BEAT as a period cost when incurred. Loss Contingencies Ciena is subject to the possibility of various losses arising in the ordinary course of business. These may relate to disputes, litigation and other legal actions. Ciena considers the likelihood of loss or the incurrence of a liability, as well as Ciena’s ability to estimate the amount of loss reasonably, in determining loss contingencies. An estimated loss contingency is accrued when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. Ciena regularly evaluates current information available to it in order to determine whether any accruals should be adjusted and whether new accruals are required. Fair Value of Financial Instruments The carrying value of Ciena’s cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximates fair market value due to the relatively short period of time to maturity. For information related to the fair value of Ciena’s short-term and long-term debt, see Note 19 below. Fair value for the measurement of financial assets and liabilities is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. Ciena utilizes a valuation hierarchy for disclosure of the inputs for fair value measurement. This hierarchy prioritizes the inputs into three broad levels as follows: • Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities; • Level 2 inputs are quoted prices for identical or similar assets or liabilities in less active markets or model-derived valuations in which significant inputs are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument; and • Level 3 inputs are unobservable inputs based on Ciena’s assumptions used to measure assets and liabilities at fair value. The fair values are determined based on model-based techniques using inputs Ciena could not corroborated with market data. 96 By distinguishing between inputs that are observable in the marketplace, and therefore more objective, and those that are unobservable, and therefore more subjective, the hierarchy is designed to indicate the relative reliability of the fair value measurements. A financial asset’s or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. Restructuring From time to time, Ciena takes actions to align its workforce, facilities and operating costs with perceived market opportunities, business strategies and changes in market and business conditions and redesign business processes. Ciena recognizes a liability for the cost associated with an exit or disposal activity in the period in which the liability is incurred, except for one-time employee termination benefits related to a service period, typically of more than 60 days, which are accrued over the service period. See Note 5 below. Foreign Currency Certain of Ciena’s foreign branch offices and subsidiaries use the U.S. Dollar as their functional currency because Ciena Corporation, as the U.S. parent entity, exclusively funds the operations of these branch offices and subsidiaries. For those subsidiaries using the local currency as their functional currency, assets and liabilities are translated at exchange rates in effect at the balance sheet date, and the statement of operations is translated at a monthly average rate. Resulting translation adjustments are recorded directly to a separate component of stockholders’ equity. Where the monetary assets and liabilities are transacted in a currency other than the entity’s functional currency, re-measurement adjustments are recorded in interest and other income (loss), net on the Consolidated Statements of Operations. See Note 6 below. Derivatives From time to time, Ciena uses foreign currency forward contracts to reduce variability in certain forecasted non-U.S. Dollar denominated cash flows. Generally, these derivatives have maturities of 24 months or less. Ciena also has interest rate swap arrangements to reduce variability in certain forecasted interest expense associated with its term loan. All of these derivatives are designated as cash flow hedges. At the inception of the cash flow hedge, and on an ongoing basis, Ciena assesses whether the derivative has been effective in offsetting changes in cash flows attributable to the hedged risk during the hedging period. The derivative’s net gain or loss is initially reported as a component of accumulated other comprehensive income (loss), and upon occurrence of the forecasted transaction, is subsequently reclassified to the line item in the Consolidated Statements of Operations to which the hedged transaction relates. Ciena records derivative instruments in the Consolidated Statements of Cash Flows within operating, investing, or financing activities consistent with the cash flows of the hedged items. From time to time, Ciena uses foreign currency forward contracts to hedge certain balance sheet foreign exchange exposures. These forward contracts are not designated as hedges for accounting purposes, and any net gain or loss associated with these derivatives is reported in interest and other income (loss), net on the Consolidated Statements of Operations. See Notes 8 and 16 below. Computation of Net Income per Share Ciena calculates basic earnings per share by dividing earnings attributable to common stock by the weighted average number of common shares outstanding for the period. Diluted net income per potential common share (“Diluted EPS”) includes other potential dilutive shares that would be outstanding if securities or other contracts to issue common stock were exercised or converted into common stock. Ciena uses a dual presentation of basic 97 net income per common share (“Basic EPS”) and Diluted EPS on the face of its income statement. A reconciliation of the numerator and denominator used for the Basic EPS and Diluted EPS computations is set forth in Note 21 below. Software Development Costs Ciena develops software for sale to its customers. GAAP requires the capitalization of certain software development costs that are incurred subsequent to the date technological feasibility is established and prior to the date the product is generally available for sale. The capitalized cost is then amortized using the straight-line method over the estimated life of the product. Ciena defines technological feasibility as being attained at the time a working model is completed. To date, the period between Ciena achieving technological feasibility and the general availability of such software has been short, and software development costs qualifying for capitalization have been insignificant. Accordingly, Ciena has not capitalized any software development costs. Newly Issued Accounting Standards—Effective In June 2016, the FASB issued Accounting Standards Update No. 2016-13 (“ASU 2016-13”), Financial Instruments—Credit Losses, which requires measurement and recognition of expected credit losses for financial assets held based on historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. Ciena adopted ASU 2016-13 on a modified retrospective basis in the first quarter of fiscal 2021 through a cumulative-effect adjustment at the beginning of the period of adoption and did not restate prior periods. The standard primarily impacts the value of Ciena’s accounts receivable, net and contract assets for unbilled accounts receivable, net. Adoption of ASU 2016-13 did not have a material effect on Ciena’s financial position or results of operations. In December 2019, the FASB issued ASU No. 2019-12 (“ASU 2019-12”), Income Taxes (ASC 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for income taxes by removing certain exceptions to the general principles in ASC 740. The amendments also improve consistent application of and simplify GAAP for other areas of ASC 740 by clarifying and amending existing guidance. Most amendments within this standard are required to be applied on a prospective basis, while certain amendments must be applied on a retrospective or modified retrospective basis. Ciena adopted ASU 2019-12 on a prospective basis in the first quarter of fiscal 2022. The adoption of ASU 2019-12 did not have a material impact on Ciena’s consolidated financial statements and related disclosures. In March 2020, the FASB issued ASU No. 2020-04 (“ASU 2020-04”), Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. ASU 2020-04 provides temporary optional guidance on contract modifications and hedging accounting to ease the financial reporting burdens of the expected market transition from the London Interbank Offered Rate (“LIBOR”) to alternative reference rates. In January 2021, the FASB issued ASU 2021-01, which refines the scope of Topic 848 and clarifies some of its guidance as part of the FASB’s monitoring of global reference rate activities. The new guidance was effective upon issuance, and Ciena is allowed to elect to apply the amendments prospectively through December 31, 2022. Ciena adopted ASU 2020-04 and ASU 2021-01 on a prospective basis in fiscal 2022. The adoption of ASU 2020-04 and ASU 2021-01 did not have a material impact on Ciena’s consolidated financial statements and related disclosures. In November 2021, the FASB issued ASU No. 2021-10 (“ASU 2021-10”), Government Assistance, to increase transparency of government assistance including the disclosure of (1) the types of assistance, (2) an entity’s accounting for the assistance, and (3) the effect of the assistance on an entity’s financial statements. ASU 2021-10 is effective for annual periods beginning after December 15, 2021. Early adoption is permitted. Ciena early adopted ASU 2021-10 during fiscal 2022. The adoption of ASU 2021-10 did not have a material impact on Ciena’s consolidated financial statements and related disclosures. 98 Newly Issued Accounting Standards—Not Yet Effective In October 2021, the FASB issued ASU No. 2021-08 (“ASU 2021-08”), Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers to improve the accounting for acquired revenue contracts with customers in a business combination to address recognition of an acquired contract liability and payment terms and their effect on subsequent revenue recognized by the acquirer. ASU 2021-08 is effective for annual periods beginning after December 15, 2022 on a prospective basis. Early adoption is permitted. Ciena is currently evaluating the impact of this accounting standard update on its consolidated financial statements and related disclosures. (2) REVENUE Disaggregation of Revenue Ciena’s disaggregated revenue as presented below depicts the nature, amount, and timing of revenue and cash flows for similar groupings of Ciena’s various offerings. The sales cycle, contractual obligations, customer requirements, and go-to-market strategies may differ for each of its product categories, resulting in different economic risk profiles for each category. The tables below set forth Ciena’s disaggregated revenue for the respective period (in thousands): Year Ended October 29, 2022 Networking Platforms Platform Software and Services Blue Planet Automation Software and Services Global Services Total Product lines: Converged Packet Optical Routing and Switching Platform Software and Services Blue Planet Automation Software and Services Maintenance Support and Training Installation and Deployment Consulting and Network Design $2,379,931 398,439 — $ — — 277,191 $ — — — $ — — — $2,379,931 398,439 277,191 — — — — — — — — 76,567 — — — — 292,375 157,443 50,715 76,567 292,375 157,443 50,715 Total revenue by product line $2,778,370 $277,191 $76,567 $500,533 $3,632,661 Timing of revenue recognition: Products and services at a point in time $2,778,370 $ 85,691 $25,540 $ 44,091 $2,933,692 Products and services transferred over time Total revenue by timing of revenue recognition — 191,500 51,027 456,442 698,969 $2,778,370 $277,191 $76,567 $500,533 $3,632,661 99 Year Ended October 30, 2021 Networking Platforms Platform Software and Services Blue Planet Automation Software and Services Global Services Total Product lines: Converged Packet Optical Routing and Switching Platform Software and Services Blue Planet Automation Software and Services Maintenance Support and Training Installation and Deployment Consulting and Network Design $2,553,509 271,796 — $ — — 229,588 $ — — — $ — — — $2,553,509 271,796 229,588 — — — — — — — — 77,247 — — — — 283,350 171,489 33,705 77,247 283,350 171,489 33,705 Total revenue by product line $2,825,305 $229,588 $77,247 $488,544 $3,620,684 Timing of revenue recognition: Products and services at a point in time $2,825,305 $ 80,359 $27,621 $ 14,923 $2,948,208 Products and services transferred over time Total revenue by timing of revenue recognition — 149,229 49,626 473,621 672,476 $2,825,305 $229,588 $77,247 $488,544 $3,620,684 Year Ended October 31, 2020 Networking Platforms Platform Software and Services Blue Planet Automation Software and Services Global Services Total Product lines: Converged Packet Optical Routing and Switching Platform Software and Services Blue Planet Automation Software and Services Maintenance Support and Training Installation and Deployment Consulting and Network Design $2,547,647 267,416 — $ — — 197,809 $ — — — $ — — — $2,547,647 267,416 197,809 — — — — — — — — 62,632 — — — — 269,354 152,003 35,296 62,632 269,354 152,003 35,296 Total revenue by product line $2,815,063 $197,809 $62,632 $456,653 $3,532,157 Timing of revenue recognition: Products and services at a point in time $2,815,063 $ 69,099 $19,583 $ 14,363 $2,918,108 Products and services transferred over time Total revenue by timing of revenue recognition — 128,710 43,049 442,290 614,049 $2,815,063 $197,809 $62,632 $456,653 $3,532,157 100 Ciena reports its sales geographically around the following markets: (i) the United States, Canada, the Caribbean and Latin America (“Americas”); (ii) Europe, Middle East and Africa (“EMEA”); and (iii) Asia Pacific, Japan and India (“APAC”). Within each geographic area, Ciena maintains specific teams or personnel that focus on a particular region, country, customer or market vertical. These teams include sales management, account salespersons and sales engineers, as well as services professionals and commercial management personnel. The following table reflects Ciena’s geographic distribution of revenue principally based on the relevant location for Ciena’s delivery of products and performance of services. For the periods below, Ciena’s geographic distribution of revenue was as follows (in thousands): Geographic distribution: Americas EMEA APAC October 29, 2022 October 30, 2021 October 31, 2020 Year Ended $2,636,840 555,215 440,606 $2,525,619 670,462 424,603 $2,469,278 591,468 471,411 Total revenue by geographic distribution $3,632,661 $3,620,684 $3,532,157 Ciena’s revenue includes United States revenue of $2.42 billion for fiscal 2022, $2.27 billion for fiscal 2021 and $2.25 billion for fiscal 2020. No other country accounted for 10% or more of total revenue for the periods presented above. For the periods below, the only customers that accounted for at least 10% of Ciena’s revenue were as follows (in thousands): AT&T Verizon Total October 29, 2022 October 30, 2021 October 31, 2020 $433,418 402,787 $836,205 $447,403 n/a $447,403 $373,163 n/a $373,163 n/a Denotes revenue representing less than 10% of total revenue for the period The customers identified above purchased products and services from each of Ciena’s operating segments. While Ciena has benefited from the diversification of its business and customer base, its ten largest customers contributed 56.3% of fiscal 2022 revenue, 55.5% of fiscal 2021 revenue and 54.5% of fiscal 2020 revenue. • Networking Platforms revenue reflects sales of Ciena’s Converged Packet Optical and Routing and Switching product lines. • Converged Packet Optical - includes the 6500 Packet-Optical Platform, the Waveserver® modular interconnect system, the 6500 Reconfigurable Line System (RLS), the 5400 family of Packet- Optical Platforms, and the Coherent ELS open line system (OLS). This product line includes the WL5n 100G-400G coherent pluggable transceivers. This product line also includes sales of the Z-Series Packet-Optical Platform. • Routing and Switching - includes the 3000 family of service delivery platforms and the 5000 family of service aggregation. This product line also includes the 6500 Packet Transport System (PTS), which combines packet switching, control plane operation, and integrated optics, the 8100 101 Coherent Routing platforms, and the 8700 Packetwave Platform. This product line also includes the Vyatta (as defined in Note 4 below) virtual routing and switching products acquired from AT&T during the first quarter of fiscal 2022. The Networking Platforms segment also includes sales of operating system software and enhanced software features embedded in each of the product lines above. Revenue from this segment is included in product revenue on the Consolidated Statements of Operations. Operating system software and enhanced software features embedded in Ciena hardware are each considered distinct performance obligations for which the revenue is generally recognized upfront at a point in time upon transfer of control. • Platform Software and Services offerings provide domain control management, analytics, data and planning tools and applications to assist customers in managing their networks, including by creating more efficient operations and more proactive visibility into their networks. Ciena’s platform software includes its MCP domain controller solution, its suite of MCP applications, and its OneControl Unified Management System, as well as planning tools and a number of legacy software solutions that support Ciena’s installed base of network solutions. Platform software-related services revenue includes sales of subscription, installation, support, and consulting services related to Ciena’s software platforms, operating system software and enhanced software features embedded in each of the Networking Platforms product lines above. Revenue from the software portion of this segment is included in product revenue on the Consolidated Statements of Operations. Revenue from services portions of this segment is included in services revenue on the Consolidated Statements of Operations. • Blue Planet® Automation Software and Services is a comprehensive, cloud native, and standards-based software portfolio, together with related services, that enables customers to realize digital transformation through the automation of the services lifecycle. Ciena’s Blue Planet Automation Platform includes multi-domain service orchestration (MDSO), inventory management (BPI), route optimization and analysis (ROA), network function virtualization orchestration (NFVO), and unified assurance and analytics (UAA). Services revenue includes sales of subscription, installation, support, consulting and design services related to Ciena’s Blue Planet Automation Platform. Revenue from the software portion of this segment is included in product revenue on the Consolidated Statements of Operations. Revenue from services portions of this segment is included in services revenue on the Consolidated Statements of Operations. Ciena’s software platform revenue typically reflects either perpetual or term-based software licenses, and these sales are considered distinct performance obligations where revenue is generally recognized upfront at a point in time upon transfer of control. Revenue from software subscription and support is recognized ratably over the period during which the services are performed. Revenue from professional services for solution customization, software and solution support services, consulting and design, and build-operate-transfer services relating to Ciena’s software offerings is recognized over time with Ciena applying the input method to determine the amount of revenue to be recognized in a given period. • Global Services revenue reflects sales of a broad range of Ciena’s services for maintenance support and training, installation and deployment, and consulting and network design activities. Revenue from this segment is included in services revenue on the Consolidated Statements of Operations. Ciena’s Global Services are considered a distinct performance obligation where revenue is generally recognized over time. Revenue from maintenance support is recognized ratably over the period during which the services are performed. Revenue from installation and deployment services and consulting and network design services is recognized over time with Ciena applying the input method to determine the amount of revenue to be recognized in a given period. Revenue from training services is generally recognized at a point in time upon completion of the service. 102 Contract Balances The following table provides information about receivables, contract assets and contract liabilities (deferred revenue) from contracts with customers (in thousands): Balance at October 29, 2022 Balance at October 30, 2021 Accounts receivable, net Contract assets for unbilled accounts receivable, net Deferred revenue $920,772 $156,039 $200,235 $884,958 $101,355 $175,464 Ciena’s contract assets represent unbilled accounts receivable, net, where transfer of a product or service has occurred but invoicing is conditional upon completion of future performance obligations. These amounts are primarily related to installation and deployment and professional services arrangements where transfer of control has occurred, but Ciena has not yet invoiced the customer. Contract assets are included in prepaid expenses and other in the Consolidated Balance Sheets. See Note 11 below. Contract liabilities consist of deferred revenue and represent advanced payments against non-cancelable customer orders received prior to revenue recognition. Ciena recognized approximately $111.3 million and $106.5 million of revenue during fiscal 2022 and 2021, respectively, that was included in the deferred revenue balance at October 29, 2022 and October 30, 2021, respectively. Revenue recognized due to changes in transaction price from performance obligations satisfied or partially satisfied in previous periods was immaterial during fiscal 2022 and 2021. Capitalized Contract Acquisition Costs Capitalized contract acquisition costs consist of deferred sales commissions and were $39.7 million and $27.6 million as of October 29, 2022 and October 30, 2021, respectively, and are included in prepaid expenses and other and other long-term assets. The amortization expense associated with these costs was $27.3 million and $24.6 million during fiscal 2022 and fiscal 2021, respectively, and are included in sales and marketing expense on the Consolidated Statements of Operations. Remaining Performance Obligations Remaining Performance Obligations (“RPO”) are comprised of non-cancelable customer purchase orders for products and services that are awaiting transfer of control for revenue recognition under the applicable contract terms. As of October 29, 2022, the aggregate amount of RPO was $2.8 billion. As of October 29, 2022, Ciena expects approximately 91% of the RPO to be recognized as revenue within the next twelve months. (3) CANADIAN EMERGENCY WAGE SUBSIDY In April 2020, the Canadian government introduced the Canada Emergency Wage Subsidy (“CEWS”) to help employers offset a portion of their employee wages for a limited period in response to the COVID-19 outbreak, retroactive to March 15, 2020. The CEWS program expired in October 2021. The subsidy covered employers of all sizes and across all sectors. Ciena accounts for proceeds from government grants as a reduction of expense when there is reasonable assurance that Ciena has met the required conditions associated with the grant and that grant proceeds will be received. Grant benefits are recorded to the particular line item of the Consolidated Statements of Operations to which the grant activity relates. Amounts from the CEWS program positively impacted Ciena’s operating expense and measures of profit in the year ended October 30, 2021. For the fiscal year ended October 30, 2021, Ciena recorded a CAD$52.2 million ($41.3 million) benefit, net of certain fees, related to CEWS for claim periods beginning March 15, 2020, including CAD$43.9 million ($35.4 million) related to employee wages during fiscal 2020. There was no CEWS activity in fiscal 2020 or 2022. 103 The following table summarizes CEWS for the period indicated (in thousands): Product Service CEWS benefit in cost of goods sold Research and development Sales and marketing General and administrative CEWS benefit in operating expense Total CEWS benefit Year Ended October 30, 2021 $ 4,283 2,667 6,950 29,519 2,604 2,207 34,330 $41,280 (4) BUSINESS COMBINATIONS Fiscal 2022 Acquisitions: Vyatta and Xelic On November 1, 2021, Ciena acquired AT&T’s Vyatta Software Technology (“Vyatta”), a provider of software-based virtual routing and switching technology. AT&T is a customer of Ciena, see Note 2 above. On March 9, 2022, Ciena acquired Xelic, Inc., a provider and developer of field programmable gate array (FPGA) and application-specific integrated circuit (ASIC) technology and optical networking IP cores. These businesses were acquired for an aggregate of approximately $64.1 million, of which $63.3 million was paid in cash and $0.8 million represents a future payable arrangement. These transactions have each been accounted for as the acquisition of a business. Ciena incurred approximately $1.7 million in acquisition-related costs associated with these acquisitions. These costs and expenses primarily include fees associated with financial, legal and accounting advisors. These costs were recorded in acquisition and integration costs in the Consolidated Statements of Operations. The following table summarizes the final purchase price allocation related to the acquisitions based on the estimated fair value of the acquired assets and assumed liabilities (in thousands): Cash and cash equivalents Prepaid expenses and other Equipment, furniture and fixtures Customer relationships and contracts Developed technology Goodwill Accrued liabilities Total purchase consideration Amount $ 201 1,614 694 15,800 32,491 17,698 (4,434) $64,064 Customer relationships and contracts represent agreements with existing Vyatta customers and have an estimated useful life of two years. Developed technology represents purchased technology that has reached technological feasibility and for which the acquired companies had substantially completed development as of the date of acquisition. Fair value was determined using future discounted cash flows related to the projected income stream of the developed technology for a discrete projection period. Cash flows were discounted to their present value as of the closing date. Developed technology is amortized on a straight-line basis over its estimated useful life of five years. 104 The goodwill generated from these acquisitions are primarily related to expected economic synergies. The total goodwill amount was recorded in the Networking Platforms segment. The goodwill is not deductible for income tax purposes. Pro forma disclosures have not been included due to immateriality. The amounts of revenue and earnings for these acquisitions since the acquisition dates, which are included in the Consolidated Statements of Operations for the reporting period are immaterial. Fiscal 2020 Acquisitions: Centina Systems, Inc. On November 2, 2019, Ciena acquired Centina Systems, Inc. (“Centina”), a provider of service assurance analytics and network performance management solutions, for approximately $34.0 million in cash. This transaction has been accounted for as the acquisition of a business. The following table summarizes the final purchase price allocation related to the acquisition based on the estimated fair value of the acquired assets and assumed liabilities (in thousands): Cash and cash equivalents Accounts receivable Prepaid expenses and other Equipment, furniture and fixtures Goodwill Customer relationships and contracts Developed technology Accounts payable Accrued liabilities Deferred revenue Deferred tax liability Total purchase consideration Amount $ 5,718 610 536 17 13,055 400 22,200 (47) (286) (1,493) (6,692) $34,018 Customer relationships and contracts represent agreements with existing Centina customers and have an estimated useful life of two years. Developed technology represents purchased technology that has reached technological feasibility and for which Centina had substantially completed development as of the date of acquisition. Fair value was determined using future discounted cash flows related to the projected income stream of the developed technology for a discrete projection period. Cash flows were discounted to their present value as of the closing date. Developed technology is amortized on a straight-line basis over its estimated useful life of five years. The goodwill generated from the acquisition of Centina is primarily related to expected economic synergies. The total goodwill amount was recorded in the Blue Planet Automation Software and Services segment. The goodwill is not deductible for income tax purposes. Pro forma disclosures have not been included due to immateriality. (5) SIGNIFICANT ASSET IMPAIRMENT AND RESTRUCTURING COSTS Ciena has undertaken a number of restructuring activities intended to reduce expense and align its workforce and costs with market opportunities, product development and business strategies. The following table sets forth 105 the restructuring activity and balance of the restructuring liability accounts, which are included in accrued liabilities and other short-term obligations on Ciena’s Consolidated Balance Sheets, for the fiscal years indicated (in thousands): Balance at November 2, 2019 Charges Adjustments related to ASC 842 Cash payments Balance at October 31, 2020 Charges Cash payments Balance at October 30, 2021 Charges Cash payments Balance at October 29, 2022 Workforce reduction Other restructuring activities $ 3,983 $ 11,160 7,282(1) — (8,350) 2,915 5,938(1) (8,072) 781 3,156(1) (2,722) 15,370(2) (11,160)(3) (15,370) — 23,627(2) (23,627) — 26,814(2) (22,194) Total $ 15,143 22,652 (11,160) (23,720) 2,915 29,565 (31,699) 781 29,970 (24,916) $ 1,215 $ 4,620 $ 5,835 Current restructuring liabilities $ 1,215 $ 4,620 $ 5,835 (1) Reflects employee costs associated with workforce reductions as part of a business optimization strategy to improve gross margin, constrain operating expense and redesign certain business processes. (2) Primarily represents the redesign of certain business processes associated with Ciena’s supply chain and distribution structure reorganization and costs related to restructured real estate facilities. (3) Represents restructuring reserve liability recognized as a reduction to Operating ROU assets, net in relation to adoption of ASC 842. Significant Asset Impairments In February 2022, armed conflict escalated between Russia and Ukraine. The United States and certain other countries have imposed sanctions on Russia and could impose further sanctions. On March 7, 2022, Ciena announced its decision to suspend its business operations in Russia immediately. As a result, Ciena recorded impairment charges of approximately $3.8 million of which $1.8 million was a provision for credit losses. (6) INTEREST AND OTHER INCOME (LOSS), NET The components of interest and other income (loss), net, were as follows (in thousands): Interest income Gains (losses) on non-hedge designated foreign currency forward contracts Foreign currency exchange gains (losses) Unrealized gain on cost method equity investment Other October 29, 2022 Year Ended October 30, 2021 October 31, 2020 $10,060 $ 2,051 $ 6,860 (4,018) 11,172 5,551 2,501 (14,622) (13,022) 4,120 (5,916) — (369) 2,681 (1,106) Interest and other income (loss), net $ 6,747 $ (1,768) $ 964 Ciena Corporation, as the U.S. parent entity, uses the U.S. Dollar as its functional currency; however, some of its foreign branch offices and subsidiaries use the local currency as their functional currency. During fiscal 106 2022, Ciena recorded $2.5 million in exchange rate gains as a result of monetary assets and liabilities that were transacted in a currency other than the entity’s functional currency. During fiscal 2021 and 2020, Ciena recorded $14.6 million and $13.0 million, respectively, in exchange rate losses as a result of monetary assets and liabilities that were transacted in a currency other than the entity’s functional currency. The related remeasurement adjustments were recorded in interest and other income (loss), net on the Consolidated Statements of Operations. From time to time, Ciena uses foreign currency forwards to hedge certain of these balance sheet exposures. These forwards are not designated as hedges for accounting purposes, and any net gain or loss associated with these derivatives is also reported in interest and other income (loss), net on the Consolidated Statements of Operations. During fiscal 2022, Ciena recorded losses of $4.0 million from non-hedge designated foreign currency forward contracts. During fiscal 2021 and fiscal 2020, Ciena recorded gains of $11.2 million and $5.6 million, respectively, from non-hedge designated foreign currency forward contracts. During fiscal 2022 and fiscal 2020, Ciena recorded an unrealized gain of $4.1 million and $2.7 million, respectively, on its cost method equity investment. (7) CASH EQUIVALENT, SHORT-TERM AND LONG-TERM INVESTMENTS As of the dates indicated, investments classified as available-for-sale are comprised of the following (in thousands): U.S. government obligations Corporate debt securities Time deposits Included in cash equivalents Included in short-term investments Included in long-term investments U.S. government obligations Time deposits Included in cash equivalents Included in short-term investments Included in long-term investments Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value October 29, 2022 $137,963 54,899 55,889 $248,751 $ 55,530 156,430 36,791 $248,751 $ — 1 — $ 1 $ — 1 — $ 1 $(3,379) (405) (64) $(3,848) $ — (2,442) (1,406) $(3,848) $134,584 54,495 55,825 $244,904 $ 55,530 153,989 35,385 $244,904 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value October 30, 2021 $251,713 71,226 $322,939 $ 71,226 181,488 70,225 $322,939 $ $ 5 — 5 $ — 5 — $ 5 $(197) — $(197) $ — (10) (187) $(197) $251,521 71,226 $322,747 $ 71,226 181,483 70,038 $322,747 The following table summarizes the legal maturities of debt investments at October 29, 2022 (in thousands): Less than one year Due in 1-2 years October 29, 2022 Amortized Cost $211,960 36,791 Estimated Fair Value $209,519 35,385 $248,751 $244,904 107 (8) FAIR VALUE MEASUREMENTS As of the dates indicated, the following tables summarize the fair value of assets and liabilities that were recorded at fair value on a recurring basis (in thousands): Assets: Money market funds Bond mutual fund Time deposits Deferred compensation plan assets U.S. government obligations Corporate debt securities Foreign currency forward contracts Forward starting interest rate swaps October 29, 2022 Level 1 Level 2 Level 3 Total $ 639,024 71,145 55,825 12,751 — — — — $ — — — — 134,584 54,495 251 12,306 $ — — — — — — — — $ 639,024 71,145 55,825 12,751 134,584 54,495 251 12,306 Total assets measured at fair value $ 778,745 $201,636 $ — $ 980,381 Liabilities: Foreign currency forward contracts Total liabilities measured at fair value Assets: Money market funds Bond mutual fund Time deposits Deferred compensation plan assets U.S. government obligations Foreign currency forward contracts $ $ — — $ 15,605 $ — $ 15,605 $ — $ $ 15,605 15,605 October 30, 2021 Level 1 Level 2 Level 3 Total $1,120,851 75,425 71,226 12,968 — — $ — — — — 251,521 14,935 $ — — — — — — $1,120,851 75,425 71,226 12,968 251,521 14,935 Total assets measured at fair value $1,280,470 $266,456 $ — $1,546,926 Liabilities: Foreign currency forward contracts Forward starting interest rate swaps Total liabilities measured at fair value $ $ — — — $ 716 15,928 $ — — $ 16,644 $ — $ $ 716 15,928 16,644 108 As of the dates indicated, the assets and liabilities above were presented on Ciena’s Consolidated Balance Sheets as follows (in thousands): Assets: Cash equivalents Short-term investments Prepaid expenses and other Long-term investments Other long-term assets October 29, 2022 Level 1 Level 2 Level 3 Total $ 757,725 8,269 — — 12,751 $ 7,974 145,720 251 35,385 12,306 $ — — — — — $ 765,699 153,989 251 35,385 25,057 Total assets measured at fair value $ 778,745 $201,636 $ — $ 980,381 Liabilities: Accrued liabilities and other short-term obligations Total liabilities measured at fair value Assets: Cash equivalents Short-term investments Prepaid expenses and other Long-term investments Other long-term assets $ $ — — $ 15,605 $ — $ 15,605 $ — $ $ 15,605 15,605 October 30, 2021 Level 1 Level 2 Level 3 Total $1,267,502 — — — 12,968 $ — 181,483 14,935 70,038 — $ — — — — — $1,267,502 181,483 14,935 70,038 12,968 Total assets measured at fair value $1,280,470 $266,456 $ — $1,546,926 Liabilities: Accrued liabilities and other short-term obligations Other long-term obligations Total liabilities measured at fair value $ $ — — — $ 716 15,928 $ — — $ 16,644 $ — $ $ 716 15,928 16,644 Ciena did not have any transfers between Level 1 and Level 2 fair value measurements during the periods presented. (9) ACCOUNTS RECEIVABLE As of October 29, 2022, two customers accounted for 13.0% and 11.0% of net accounts receivable, respectively. As of October 30, 2021, two customers accounted for 15.0% and 10.0% of net accounts receivable, respectively. Ciena has not historically experienced a significant amount of bad debt expense. The following table summarizes the activity in Ciena’s allowance for credit losses for the fiscal years indicated (in thousands): Year Ended Beginning Balance accounting standard (Note 1) Provisions Net Deductions Ending Balance Effect of adoption of new October 31, 2020(1) October 30, 2021 October 29, 2022(2) $20,101 $10,598 $10,912 $ — $2,206 $ — $8,855 $2,346 $4,199 $18,358 $ 4,238 $ 4,153 $10,598 $10,912 $10,958 (1) The net deduction in Ciena’s allowance for credit losses as of October 31, 2020 is primarily due to the final settlement from a significant asset impairment of $12.2 million for a trade receivable related to a single customer in the APAC region recorded in fiscal 2017. 109 (2) On March 7, 2022, Ciena announced its decision to suspend its business operations in Russia immediately. As a result, Ciena’s allowance for doubtful accounts includes a provision for a significant asset impairment of $1.8 million for a trade receivable related to this decision. Accounts Receivable Factoring During fiscal 2022, the gross amount of trade accounts receivables sold totaled approximately $11.8 million. Prior to the start of fiscal 2022, Ciena had not entered into any factoring arrangements. Factoring related interest expense recorded to interest and other income (loss), net was $0.6 million for fiscal 2022. (10) INVENTORIES As of the dates indicated, inventories are comprised of the following (in thousands): Raw materials Work-in-process Finished goods Deferred cost of goods sold Gross inventories Reserve for excess and obsolescence October 29, 2022 October 30, 2021 $664,916 18,232 258,584 41,084 982,816 (36,086) $175,399 10,260 180,800 44,765 411,224 (36,959) Inventories, net $946,730 $374,265 Ciena has been expanding its manufacturing capacity and accumulating raw materials inventory of components that are available, in some cases with expanded lead times, in an effort to prepare Ciena to produce finished goods more quickly when supply constraints ease for certain common components, including integrated circuit components, for which delivery continues to be delayed. The increase in raw materials inventory is related to these steps to mitigate the impact of current supply chain constraints and the global market shortage of semiconductor parts. Ciena makes estimates about future customer demand for its products when establishing the appropriate reserve for excess and obsolete inventory. For fiscal 2022, future demand was calculated primarily based on customer backlog. Generally, Ciena’s customers may cancel or change their orders with limited advance notice, or they may decide not to accept its products and services, although instances of both cancellation and non-acceptance are rare. Ciena writes down its inventory for estimated obsolescence or unmarketable inventory by an amount equal to the difference between the cost of inventory and the estimated net realizable value based on assumptions about future demand, which are affected by changes in Ciena’s strategic direction, discontinuance of a product or introduction of newer versions of products, declines in the sales of or forecasted demand for certain products, and general market conditions. During fiscal 2022, fiscal 2021 and fiscal 2020, Ciena recorded a provision for excess and obsolescence of $16.2 million, $17.9 million, and $24.7 million, respectively, primarily related to a decrease in the forecasted demand for certain Networking Platforms products. Deductions from the provision for excess and obsolete inventory relate primarily to the sale of previously reserved items and disposal activities. The following table summarizes the activity in Ciena’s reserve for excess and obsolete inventory for the fiscal years indicated (in thousands): Year Ended October 31, 2020 October 30, 2021 October 29, 2022 Beginning Balance Provisions Disposals Ending Balance $47,322 $39,637 $36,959 $24,701 $17,850 $16,184 $32,386 $20,528 $17,057 $39,637 $36,959 $36,086 110 (11) PREPAID EXPENSES AND OTHER As of the dates indicated, prepaid expenses and other are comprised of the following (in thousands): Contract assets for unbilled accounts receivable, net Prepaid VAT and other taxes Prepaid expenses Product demonstration equipment, net Capitalized contract acquisition costs Other non-trade receivables Deferred deployment expense Derivative assets October 29, 2022 October 30, 2021 $156,039 63,975 55,440 35,929 33,516 24,026 877 251 $370,053 $101,355 77,388 62,189 29,362 21,753 18,408 264 14,935 $325,654 Depreciation of product demonstration equipment was $8.7 million, $9.8 million and $9.0 million for fiscal 2022, 2021 and 2020, respectively. For further discussion on contract assets and capitalized contract acquisition costs, see Note 2 above. (12) EQUIPMENT, BUILDING, FURNITURE AND FIXTURES As of the dates indicated, equipment, building, furniture and fixtures are comprised of the following (in thousands): Equipment, furniture and fixtures Building subject to finance lease Leasehold improvements Equipment, building, furniture and fixtures Accumulated depreciation and amortization October 29, 2022 October 30, 2021 $ 619,160 69,247 80,415 768,822 (501,043) $ 599,672 76,123 100,270 776,065 (491,097) Equipment, building, furniture and fixtures, net $ 267,779 $ 284,968 During fiscal 2022, fiscal 2021 and fiscal 2020, Ciena recorded depreciation of equipment, building, furniture and fixtures, and amortization of leasehold improvements of $87.2 million, $86.5 million and $84.9 million, respectively. (13) INTANGIBLE ASSETS As of the dates indicated, intangible assets are comprised of the following (in thousands): October 29, 2022 October 30, 2021 Gross Intangible Accumulated Amortization Net Intangible Gross Intangible Accumulated Amortization Net Intangible Developed technology Patents and licenses Customer relationships, covenants not to compete, outstanding purchase orders and contracts $428,218 $(386,300) $41,918 $395,726 $(359,828) $35,898 4,494 (4,228) (3,321) 8,415 4,187 7,815 390,271 (366,859) 23,412 375,329 (350,407) 24,922 Total intangible assets $826,904 $(757,387) $69,517 $778,870 $(713,556) $65,314 111 The aggregate amortization expense of intangible assets was $44.3 million, $36.0 million and $38.6 million for fiscal 2022, fiscal 2021 and fiscal 2020, respectively. Expected future amortization of intangible assets for the fiscal years indicated is as follows (in thousands): Fiscal Year 2023 2024 2025 2026 2027 Thereafter Amount $28,828 19,194 13,337 7,191 709 258 $69,517 (14) GOODWILL The following table presents the goodwill allocated to Ciena’s operating segments as of October 29, 2022 and October 30, 2021, as well as the changes to goodwill during fiscal 2022 (in thousands): Platform Software and Services Blue Planet Automation Software and Services Networking Platforms Balance at October 30, 2021 Acquisitions Translation Balance at October 29, 2022 $156,191 $ — $ — $156,191 89,049 66,405 — 17,698 — (1,021) 89,049 83,082 Total $311,645 $17,698 $(1,021) $328,322 (15) OTHER BALANCE SHEET DETAILS As of the dates indicated, other long-term assets are comprised of the following (in thousands): Maintenance spares inventory, net Cost method equity investments(1) Deferred compensation plan assets Forward starting interest rate swaps Capitalized contract acquisition costs Deferred debt issuance costs, net(2) Restricted cash Other October 29, 2022 October 30, 2021 $ 44,815 20,698 12,751 12,306 6,151 781 26 16,089 $113,617 $55,696 8,578 12,968 — 5,803 1,188 58 15,600 $99,891 (1) Ciena recorded an unrealized gain of $4.1 million to the carrying value of its cost method equity investment to interest and other income (loss), net on the Consolidated Statements of Operations during the first quarter of fiscal 2022. (2) Deferred debt issuance costs relate to Ciena’s senior secured asset-based revolving credit facility (the “ABL Credit Facility”) entered into during fiscal 2019 and its predecessor credit facility (described in Note 20 below). The amortization of deferred debt issuance costs for the ABL Credit Facility and its predecessor is included in interest expense, and was $0.4 million for fiscal 2022, fiscal 2021 and fiscal 2020. 112 As of the dates indicated, accrued liabilities and other short-term obligations are comprised of the following (in thousands): Compensation, payroll related tax and benefits (1) Warranty Vacation Foreign currency forward contracts Income taxes payable Interest payable Finance lease liabilities Other October 29, 2022 October 30, 2021 $126,338 45,503 26,396 15,604 11,472 4,793 3,758 126,918 $360,782 $201,119 48,019 31,200 716 13,577 598 3,620 110,436 $409,285 (1) Reduction is primarily due to a lower accrual rate related to Ciena’s 2022 annual cash incentive compensation plan. The following table summarizes the activity in Ciena’s accrued warranty for the fiscal years indicated (in thousands): Year Ended October 31, 2020 October 30, 2021 October 29, 2022 Beginning Balance Current Year Provisions Settlements Ending Balance $48,498 $49,868 $48,019 $22,417 $17,093 $17,440 $21,047 $18,942 $19,956 $49,868 $48,019 $45,503 As of the dates indicated, deferred revenue is comprised of the following (in thousands): Products Services Total deferred revenue Less current portion October 29, 2022 October 30, 2021 $ 19,814 180,421 200,235 (137,899) $ 12,859 162,605 175,464 (118,007) Long-term deferred revenue $ 62,336 $ 57,457 As of the dates indicated, other long-term obligations are comprised of the following (in thousands): Finance lease liabilities Interest rate swap liability Income tax liability Deferred compensation plan liability Other October 29, 2022 October 30, 2021 $ 53,176 — 72,644 12,535 11,980 $150,335 $ 62,583 15,928 63,412 12,877 12,003 $166,803 (16) DERIVATIVE INSTRUMENTS Foreign Currency Derivatives Ciena conducts business globally in numerous currencies, and thus is exposed to adverse foreign currency exchange rate changes. To limit this exposure, Ciena entered into foreign currency contracts. Ciena does not enter into such contracts for speculative purposes. 113 As of October 29, 2022 and October 30, 2021, Ciena had forward contracts to hedge its foreign exchange exposure in order to reduce variability that is principally related to research and development activities. The notional amount of these contracts was approximately $272.2 million and $288.6 million as of October 29, 2022 and October 30, 2021, respectively. These foreign exchange contracts have maturities of 24 months or less and have been designated as cash flow hedges. As of October 29, 2022 and October 30, 2021, Ciena had forward contracts to hedge its foreign exchange exposure in order to reduce the variability in various currencies of certain balance sheet items. The notional amount of these contracts was approximately $108.0 million and $296.1 million as of October 29, 2022 and October 30, 2021, respectively. These foreign exchange contracts have maturities of 12 months or less and have not been designated as hedges for accounting purposes. Interest Rate Derivatives Ciena is exposed to floating rates of LIBOR interest on its term loan borrowings (see Note 19 below) and has hedged such risk by entering into floating-to-fixed interest rate swap arrangements (“interest rate swaps”). The interest rate swaps fix the LIBOR rate of approximately $350.0 million of the principal amount of the 2025 Term Loan at 2.957% through September 2023. The total notional amount of these interest rate swaps in effect as of October 29, 2022 was $350.0 million. In April 2022, Ciena entered into floating-to-fixed forward starting interest rate swap arrangements (“forward starting swaps”). The forward starting swaps fix the Secured Overnight Funding Rate (“SOFR”) for $350.0 million of the 2025 Term Loan (as defined in Note 19 below) at 2.968% from September 2023 through the 2025 Term Loan maturity. The total notional amount of forward starting swaps effective September 2023 was $350.0 million as of October 29, 2022. Ciena entered into the forward starting swaps to hedge its anticipated SOFR rate risk from the 2025 Term Loan because the LIBOR rate is expected to be discontinued in 2023. Ciena expects the variable rate payments to be received under the terms of the interest rate swaps and forward starting swaps to offset exactly the forecasted variable rate payments on the equivalent notional amount of the 2025 Term Loan. These derivative contracts have been designated as cash flow hedges. Other information regarding Ciena’s derivatives is immaterial for separate financial statement presentation. See Notes 6 and 8 above. 114 (17) ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The following table summarizes the changes in accumulated balances of other comprehensive income (“AOCI”), net of tax (in thousands): Balance at November 2, 2019 Other comprehensive loss before reclassifications Amounts reclassified from AOCI Balance at October 31, 2020 Other comprehensive gain (loss) before reclassifications Amounts reclassified from AOCI Balance at October 30, 2021 Other comprehensive gain (loss) before reclassifications Amounts reclassified from AOCI Unrealized Gain/(Loss) on Available-for-Sale Securities Foreign Currency Forward Contracts Forward Starting Interest Rate Swaps Cumulative Foreign Currency Translation Adjustment Total $ 152 $ 925 $(13,686) $ (9,475) $(22,084) (107) (3,891) (12,302) (4,174) (20,474) — 45 (209) — (164) 2,747 (219) 4,453 (21,535) — 7,200 (13,649) (35,358) 16,856 (261) 20,215 36,601 (10,421) 6,216 9,617 (12,179) — 6,566 (804) 439 (2,801) (16,299) 14,512 (49,446) (54,034) — (114) 7,064 — 6,950 Balance at October 29, 2022 $(2,965) $(10,197) $ 9,397 $(42,880) $(46,645) All amounts reclassified from AOCI related to settlement (gains) losses on foreign currency forward contracts designated as cash flow hedges impacted research and development expense on the Consolidated Statements of Operations. All amounts reclassified from AOCI related to settlement (gains) losses on forward starting interest rate swaps designated as cash flow hedges impacted interest and other income (loss), net on the Consolidated Statements of Operations. (18) LEASES Ciena leases over 1.3 million square feet of facilities globally. Ciena’s corporate headquarters are located in Hanover, Maryland. Ciena’s largest facilities are research and development centers located in Ottawa, Canada and Gurgaon, India. Ciena also has engineering facilities located in San Jose, California; Alpharetta, Georgia; Quebec, Canada; and Pune and Bangalore, India. In addition, Ciena leases various smaller offices in regions throughout the world to support sales and services operations. Office facilities are leased under various non-cancelable operating or finance leases. Ciena’s current leases have remaining terms that vary up to 10 years. Certain leases provide for options to extend up to 10 years and/or options to terminate within four years. 115 Leases included in the Consolidated Balance Sheets for the fiscal periods indicated were as follows (in thousands): Operating leases: Classification Balance at October 29, 2022 Balance at October 30, 2021 Operating ROU Assets Operating right-of-use assets Operating lease liabilities operating lease liabilities Operating lease liabilities and Long-term $45,108 $44,285 $61,317 $60,196 Finance leases: Buildings, gross Equipment, building, furniture and fixtures, net $69,247 $76,123 Less: accumulated depreciation Equipment, building, furniture and fixtures, net Buildings, net Finance lease liabilities Accrued liabilities and other short-term (26,266) $42,981 (24,027) $52,096 obligations and other long-term obligations $56,934 $66,203 ROU assets that involve subleased or vacant space aggregate $7.1 million as of October 29, 2022. Finance lease buildings, net, that involve subleased or vacant space aggregate $6.8 million as of October 29, 2022. These assets may become impaired if tenants are unable to service their obligations under the sublease, and/or if the estimates as to occupancy are not realized, either of which may be more likely as COVID-19 impacts evolve. For the periods indicated, the components of lease expense included in the Consolidated Statements of Operations were as follows (in thousands): Classification Year Ended October 29, 2022 Year Ended October 30, 2021 Year Ended October 31, 2020 Operating expense $17,966 $16,602 $17,544 Operating lease costs Finance lease cost: Amortization of finance ROU asset Operating expense 4,592 Interest on finance lease liabilities Total finance lease cost Non-capitalized lease cost Variable lease cost(1) Net lease cost(2) Interest expense Operating expense Operating expense 4,601 9,193 917 5,898 4,773 4,882 9,655 1,152 5,690 4,465 4,777 9,242 2,976 5,185 $33,974 $33,099 $34,947 (1) Variable lease costs include expenses relating to insurance, taxes, maintenance and other costs required by the applicable operating lease. Variable lease costs are determined by whether they are to be included in base rent and if amounts are based on a consumer price index. (2) Excludes other operating expense of $12.8 million, $8.8 million, and $11.0 million for the fiscal years ended October 29, 2022, October 30, 2021, and October 31, 2020, respectively, related to amortization of leasehold improvements. 116 Future minimum lease payments and the present value of minimum lease payments related to operating and finance leases as of October 29, 2022 were as follows (in thousands): 2023 2024 2025 2026 2027 Thereafter Total lease payments Less: Imputed interest Present value of lease liabilities Less: Current portion of present value of minimum lease payments Long-term portion of present value of minimum lease payments Operating Leases Finance Leases Total $20,401 16,795 12,387 8,879 4,435 2,245 65,142 (3,825) 61,317 $ 7,791 7,791 7,947 7,979 8,255 40,588 $ 28,192 24,586 20,334 16,858 12,690 42,833 80,351 (23,417) 145,493 (27,242) 56,934 118,251 18,925 3,758 22,683 $42,392 $ 53,176 $ 95,568 The weighted average remaining lease terms and weighted average discount rates for operating and finance leases were as follows (in thousands): As of October 29, 2022 As of October 30, 2021 Weighted-average remaining lease term in years: Operating leases Finance leases Weighted-average discount rates: Operating leases Finance leases 3.85 9.71 2.97% 7.56% 4.06 10.71 2.49% 7.56% (19) SHORT-TERM AND LONG-TERM DEBT 2025 Term Loan On January 23, 2020, Ciena entered into a Refinancing Amendment to Credit Agreement pursuant to which Ciena refinanced the entire outstanding amount of its then existing senior secured term loan and incurred a new senior secured term loan in an aggregate principal amount of $693.0 million and maturing on September 28, 2025 (the “2025 Term Loan”). The 2025 Term Loan bears interest at LIBOR for the chosen borrowing period plus a spread of 1.75% subject to a minimum LIBOR rate of 0.00%. At the end of fiscal 2022, the interest rate on the 2025 Term Loan was 5.24%. Interest on the 2025 Term Loan is payable periodically based on the interest period selected for borrowing. The net carrying value of the 2025 Term Loan was comprised of the following for the fiscal periods indicated (in thousands): Principal Balance Unamortized Discount Deferred Debt Issuance Costs Net Carrying Value Net Carrying Value October 29, 2022 October 30, 2021 2025 Term Loan $675,675 $(928) $(1,737) $673,010 $677,285 Deferred debt issuance costs that were deducted from the carrying amounts of the 2025 Term Loan totaled $1.7 million at October 29, 2022 and $2.3 million at October 30, 2021. Deferred debt issuance costs are amortized using the straight-line method, which approximates the effect of the effective interest rate method, 117 through the maturity of the 2025 Term Loan. The amortization of deferred debt issuance costs for the 2025 Term Loan is included in interest expense, and was $0.6 million for fiscal 2022 and fiscal 2021. The carrying value of the 2025 Term Loan listed above is also net of any unamortized debt discounts. As of October 29, 2022, the estimated fair value of the 2025 Term Loan was $668.9 million. Ciena’s term loan is categorized as Level 2 in the fair value hierarchy. Ciena estimated the fair value of the 2025 Term Loan using a market approach based on observable inputs, such as current market transactions involving comparable securities. 2030 Notes On January 18, 2022, Ciena entered into an Indenture (the “Indenture”) among Ciena, as issuer, certain domestic subsidiaries of Ciena, as guarantors (collectively, the “Guarantors”), and U.S. Bank National Association, as trustee (the “Trustee”), pursuant to which Ciena issued $400.0 million in aggregate principal amount of 4.00% senior notes due 2030 (the “2030 Notes”). Ciena’s obligations under the 2030 Notes and the Indenture are irrevocably and unconditionally guaranteed, jointly and severally, on an unsecured senior basis by each of its domestic subsidiaries that is a borrower under or guarantor with respect to the 2025 Term Loan and ABL Credit Facility. The net proceeds from the sale of the 2030 Notes, after deducting costs, were approximately $394.5 million. The 2030 Notes bear interest at a rate of 4.00% per annum and mature on January 31, 2030. Interest is payable on the 2030 Notes in arrears on January 31 and July 31 of each year, commencing on July 31, 2022. The 2030 Notes and related subsidiary guarantees are the general unsubordinated unsecured senior obligations of Ciena and the Guarantors, respectively, and (i) rank equally in right of payment with all other existing and future senior indebtedness of Ciena and the Guarantors; (ii) are effectively subordinated to all existing and future secured indebtedness of Ciena and the Guarantors, including indebtedness under the 2025 Term Loan and the ABL Credit Facility, to the extent of the value of the assets securing such indebtedness; (iii) are structurally subordinated to all existing and future obligations, including indebtedness, of Ciena’s subsidiaries that do not guarantee the 2030 Notes; and (iv) are senior in right of payment to all of Ciena’s existing and future unsecured indebtedness that is, by its terms, expressly subordinated in right of payment to the 2030 Notes. The Indenture contains restrictive covenants that limit the ability of Ciena and the Restricted Subsidiaries (as defined in the Indenture) or the Guarantors, as applicable, to, among other things, create certain liens or consolidate or merge with or into, or sell, lease, transfer, convey or otherwise dispose of all or substantially all the assets of Ciena or Ciena and its subsidiaries taken as a whole. These covenants are subject to a number of important exceptions and qualifications as set forth in the Indenture. The Indenture provides for events of default (subject in certain cases to customary grace and cure periods) that include, among others, nonpayment of principal or interest when due, breach of covenants or other agreements in the Indenture, defaults in payment of certain other indebtedness and certain events of bankruptcy or insolvency. Generally, if an event of default occurs, the Trustee or the holders of at least 25% in principal amount of the outstanding 2030 Notes may declare the principal amount of and accrued but unpaid interest on all of the 2030 Notes to be due and payable immediately, provided that such amounts become due and payable without any further action or notice in the case of an event of bankruptcy or insolvency that constitutes an event of default. Prior to January 31, 2025, Ciena may redeem the 2030 Notes, in whole or part, at a price equal to 100% of the principal amount thereof, plus a “make-whole” of 102% of the principal amount of the notes to be redeemed, 118 and any accrued and unpaid interest. On or after January 31, 2025, Ciena may redeem the 2030 Notes, in whole or part, at the redemption prices set forth in the Indenture and form of the 2030 Notes, plus any accrued and unpaid interest. In addition, until January 31, 2025, Ciena may redeem up to 40% of the aggregate principal amount of the 2030 Notes with the net cash proceeds of certain equity offerings, as described in the Indenture, at a redemption price equal to 104% of the principal amount of the 2030 Notes to be redeemed, plus any accrued and unpaid interest. If a change of control triggering event occurs, as described in the Indenture, Ciena must offer to repurchase all of the 2030 Notes (unless otherwise redeemed) at a price equal to 101% of the principal amount thereof, plus any accrued and unpaid interest. The net carrying value of the 2030 Notes was comprised of the following for the period indicated (in thousands): October 29, 2022 Deferred Debt Issuance Costs Net Carrying Value Principal Balance 2030 Senior Notes 4.00% fixed-rate $400,000 $(4,955) $395,045 Deferred debt issuance costs that were deducted from the carrying amount of the 2030 Notes totaled $5.0 million as of October 29, 2022. Deferred debt issuance costs are amortized using the straight-line method, which approximates the effect of the effective interest rate, through the maturity of the 2030 Notes. The amortization of deferred debt issuance costs for the 2030 Notes is included in interest expense, and was $0.5 million during fiscal 2022. As of October 29, 2022, the estimated fair value of the 2030 Notes was $337.0 million. The 2030 Notes are categorized as Level 2 in the fair value hierarchy. Ciena estimated the fair value of its 2030 Notes using a market approach based on observable inputs, such as current market transactions involving comparable securities. (20) ABL CREDIT FACILITY Ciena Corporation and certain of its subsidiaries are parties to the ABL Credit Facility, which provides for a total commitment of $300 million with a maturity date of October 28, 2024. The ABL Credit Facility contains customary covenants that limit, absent lender approval, the ability of Ciena and certain of its subsidiaries to, among other things, pay cash dividends, incur debt, create liens and encumbrances, and redeem or repurchase stock. In addition, Ciena is required to maintain a minimum consolidated fixed charge coverage ratio of not less than 1.0 to 1.0 when excess availability under the ABL Credit Facility is less than the greater of (i) 10.0% of the lesser of the total borrowing base and the aggregate revolving commitments and (ii) $15,000,000. Ciena principally uses the ABL Credit Facility to support the issuance of letters of credit that arise in the ordinary course of its business and thereby to reduce its use of cash required to collateralize these instruments. As of October 29, 2022, letters of credit totaling $85.6 million were outstanding under the ABL Credit Facility. There were no borrowings outstanding under the ABL Credit Facility as of October 29, 2022. (21) EARNINGS PER SHARE CALCULATION Basic net income per common share (“Basic EPS”) is computed using the weighted average number of common shares outstanding. Diluted net income per potential common share (“Diluted EPS”) is computed using the weighted average number of the following, in each case, to the extent the effect is not anti-dilutive: (i) common shares outstanding, (ii) shares issuable upon vesting of stock unit awards; and (iii) shares issuable under Ciena’s employee stock purchase plan and upon exercise of outstanding stock options, using the treasury stock method. 119 The following table presents the calculation of Basic and Diluted EPS (in thousands except per share amounts): Net income $152,902 $500,196 $361,291 October 29, 2022 October 30, 2021 October 31, 2020 Year Ended Basic weighted average shares outstanding Effect of dilutive potential common shares Diluted weighted average shares Basic EPS Diluted EPS 151,208 155,279 154,287 985 152,193 $ $ 1.01 1.00 1,464 156,743 $ $ 3.22 3.19 1,668 155,955 $ $ 2.34 2.32 Antidilutive employee share-based awards, excluded 1,370 110 263 (22) STOCKHOLDERS’ EQUITY Stock Repurchase Program and Accelerated Share Repurchase Agreement On December 13, 2018, Ciena announced that its Board of Directors authorized a program to repurchase up to $500 million of Ciena’s common stock. During fiscal 2020, Ciena repurchased 1.9 million shares of its common stock, for an aggregate purchase price of $74.5 million at an average price of $39.81 per share. During fiscal 2021, Ciena repurchased an additional 1.7 million shares of its common stock, for an aggregate purchase price of $92.1 million at an average price of $54.27 per share. Under this program, Ciena repurchased a total of 7.4 million shares of its common stock, for an aggregate purchase price of $316.7 million at an average price of $42.75 per share. On December 9, 2021, Ciena announced that its Board of Directors replaced its previously authorized program with a program to repurchase up to $1.0 billion of its common stock. On December 13, 2021, Ciena entered into an accelerated share repurchase agreement (the “ASR Agreement”) with Goldman, Sachs & Co. LLC (“Goldman”) to repurchase $250.0 million (the “Repurchase Price”) of its common stock as part of the repurchase program. Under the terms of the ASR Agreement, Ciena paid the Repurchase Price to Goldman, and received approximately 3.6 million shares of its common stock from Goldman, calculated based on the average of the volume-weighted average prices of Ciena’s common stock of $69.78 for the period from December 14, 2021 to February 11, 2022, less a discount, which completed the repurchases contemplated by the ASR Agreement. Shares repurchased pursuant to the ASR Agreement were immediately retired upon receipt. During fiscal 2022, Ciena repurchased an additional 4.8 million shares of its common stock, for an aggregate purchase price of $250.0 million at an average price of $51.53 per share. As of October 29, 2022, Ciena has repurchased an aggregate of 8.4 million shares for an aggregate purchase price of $500.0 million at an average price of $59.28 per share and has an aggregate of $500.0 million of authorized funds remaining under its stock repurchase program. The purchase price for the shares of Ciena’s stock repurchased is reflected as a reduction of common stock and additional paid-in capital. Stock Repurchases Related to Restricted Stock Unit Tax Withholdings Ciena repurchases shares of common stock to satisfy employee tax withholding obligations due upon vesting of stock unit awards. The related purchase price of $48.5 million for the shares of Ciena’s stock repurchased during fiscal 2022 is reflected as a reduction to stockholders’ equity. Ciena is required to allocate the purchase price of the repurchased shares as a reduction of common stock and additional paid-in capital. 120 (23) INCOME TAXES For the periods indicated, the provision (benefit) for income taxes consists of the following (in thousands): Provision (benefit) for income taxes: Current: Federal State Foreign Total current Deferred: Federal State Foreign Total deferred October 29, 2022 October 30, 2021 October 31, 2020 Year Ended $ 27,479 10,289 19,337 57,105 (30,032) 520 2,010 (27,502) $ 72,603 21,400 25,021 119,024 (21,942) (11,546) (122,981) (156,469) $ 4,363 13,328 12,640 30,331 60,679 4,607 (947) 64,339 Provision (benefit) for income taxes $ 29,603 $ (37,445) $94,670 For the periods indicated, income before provision (benefit) for income taxes consists of the following (in thousands): United States Foreign Total Year Ended October 29, 2022 October 30, 2021 October 31, 2020 $ 28,784 153,721 $182,505 $298,514 164,237 $462,751 $387,697 68,264 $455,961 Ciena’s foreign income tax as a percentage of foreign income may appear disproportionate compared to the expected tax based on the U.S. federal statutory rate and is dependent on the mix of earnings and tax rates in foreign jurisdictions. 121 For the periods indicated, the tax provision reconciles to the amount computed by multiplying income before income taxes by the U.S. federal statutory rate of 21% for fiscal 2022, fiscal 2021 and fiscal 2020 as follows: Provision at statutory rate Intercompany IP Restructuring Transaction Base Erosion and Anti-Abuse Tax State taxes Foreign taxes Research and development credit Non-deductible compensation Foreign derived intangible income Global intangible low taxed income Foreign Nontaxable interest Taxation on foreign inflation Transition tax Rate change Valuation allowance Other Effective income tax rate Year Ended October 29, 2022 October 30, 2021 October 31, 2020 21.00% 21.00% 21.00% — % — % 2.31% (1.37)% (23.66)% 5.26% — % 1.73% (1.90)% 1.41% — % 1.27% 8.35% 1.82% 16.22% (25.85)% — % 3.73% 2.76% (7.99)% 1.68% (1.82)% — % — % 0.16% — % (4.33)% 1.77% 0.80% (8.09)% — % (1.02)% 2.21% 0.51% (7.74)% 1.79% (2.07)% — % — % (0.01)% 0.02% 3.04% 3.58% (0.55)% 20.76% Our future income tax provisions and deferred tax balances may be affected by the amount of pre-tax income, the jurisdictions where it is earned, the existence and utilizability of tax attributes and changes in tax laws and business reorganizations. Ciena continues to monitor these items. In fiscal 2021, Ciena began implementation of a plan to reorganize its global supply chain and distribution structure more substantially, which included a legal entity reorganization and related system upgrade. Ciena completed the first phase of this plan in fiscal 2021, and substantially completed the reorganization during fiscal 2022. As part of this reorganization, Ciena completed an internal transfer of certain of its non-U.S. intangible assets, which created amortizable tax basis resulting in the discrete recognition of a $119.3 million deferred tax asset with a corresponding tax benefit. The impact of this transfer is reflected in Ciena’s effective tax rate for the year ended October 30, 2021, which had a significant, one-time impact on its net income for the period. Ciena is also required to make accounting policy elections as a result of the Tax Act. These include whether a valuation allowance is recorded for the estimated effect of the application of GILTI and BEAT or if these will be treated as period costs when incurred. Ciena had made the incremental cash tax cost policy election with respect to analyzing the impact of GILTI on the assessment of the realizability of net operating losses. The realizability of U.S. tax carryforwards is not impacted by the BEAT, and the BEAT is a period cost when incurred. Ciena is also required to elect to treat taxes due on future GILTI inclusions in U.S. taxable income either as a current period expense when incurred or reflect such portion of the future GILTI inclusions in U.S. taxable income that relate to existing basis differences in Ciena’s current measurement of deferred taxes. Ciena’s accounting policy election is to treat the taxes due on future U.S. inclusions in taxable income under GILTI as a period cost when incurred. 122 The significant components of deferred tax assets are as follows (in thousands): Deferred tax assets: Reserves and accrued liabilities Depreciation and amortization NOL and credit carry forward Other Gross deferred tax assets Valuation allowance Year Ended October 29, 2022 October 30, 2021 $ 76,839 690,636 154,707 63,902 986,084 (162,076) $ 69,950 677,729 165,087 47,048 959,814 (159,634) Deferred tax asset, net of valuation allowance $ 824,008 $ 800,180 A reconciliation of the beginning and ending amount of unrecognized tax benefits, excluding interest and penalties, is as follows (in thousands): Unrecognized tax benefits at November 2, 2019 Increase related to positions taken in prior period Increase related to positions taken in current period Reductions related to expiration of statute of limitations Unrecognized tax benefits at October 31, 2020 Decrease related to positions taken in prior period Reductions related to settlements with taxing authorities Increase related to positions taken in current period Reductions related to expiration of statute of limitations Unrecognized tax benefits at October 30, 2021 Increase related to positions taken in prior period Reductions related to settlements with taxing authorities Increase related to positions taken in current period Reductions related to expiration of statute of limitations Amount $ 94,604 653 1,151 (660) 95,748 (22,854) (654) 5,510 (659) 77,091 4,732 (3,229) 2,959 (1,039) Unrecognized tax benefits at October 29, 2022 $ 80,514 As of October 29, 2022 and October 30, 2021, Ciena had accrued $5.2 million and $3.8 million of interest and penalties, respectively, related to unrecognized tax benefits included in other long-term obligations in the Consolidated Balance Sheets. Interest and penalties of $1.7 million and $0.9 million were recorded as a net expense to the provision for income taxes during fiscal 2022 and 2020, respectively. During fiscal 2021, Ciena recorded a net benefit to the provision for interest and penalties in its provision for income taxes of $0.1 million. If recognized, the entire balance of unrecognized tax benefits would impact the effective tax rate. Over the next 12 months, Ciena does not estimate any material changes in unrecognized income tax benefits. Ciena has not provided for U.S. deferred income taxes on the cumulative unremitted earnings of its non-U.S. affiliates, as it plans to indefinitely reinvest these foreign earnings outside the U.S. As of October 29, 2022, the cumulative amount of such temporary differences for which a deferred tax liability has not been recognized is an estimated $477.0 million. If these earnings were distributed to the U.S., Ciena would be subject to additional foreign withholding taxes of approximately $33.0 million. Additionally, there are no other significant temporary differences for which a deferred tax liability has not been recognized. As of October 29, 2022, Ciena continues to maintain a valuation allowance of $162.1 million against its gross deferred tax assets primarily. The valuation allowance is primarily related to state and foreign net operating losses and credits that Ciena estimates it will not be able to use. 123 The following table summarizes the activity in Ciena’s valuation allowance against its gross deferred tax assets (in thousands): Year Ended October 31, 2020 October 30, 2021 October 29, 2022 Beginning Balance Additions Deductions Ending Balance $135,978 $151,427 $159,634 $25,749 $17,897 $15,245 $10,300 $ 9,690 $12,803 $151,427 $159,634 $162,076 (24) SHARE-BASED COMPENSATION EXPENSE Ciena has outstanding equity awards issued under its 2017 Omnibus Incentive Plan (the “2017 Plan”), its 2008 Omnibus Incentive Plan, and certain legacy equity plans and equity plans assumed as a result of previous acquisitions. All equity awards granted on or after March 23, 2017 are made exclusively from the 2017 Plan. Ciena also makes shares of its common stock available for purchase under the ESPP. Each of the 2017 Plan and the ESPP are described below. 2017 Plan The 2017 Plan has a ten-year term and authorizes the issuance of awards including stock options, restricted stock units (RSUs), restricted stock, unrestricted stock, stock appreciation rights (SARs) and other equity and/or cash performance incentive awards to employees, directors and consultants of Ciena. Subject to certain restrictions, the Compensation Committee of the Board of Directors has broad discretion to establish the terms and conditions for awards under the 2017 Plan, including the number of shares, vesting conditions, and the required service or performance criteria. Options and SARs have a maximum term of ten years, and their exercise price may not be less than 100% of fair market value on the date of grant. Repricing of stock options and SARs is prohibited without stockholder approval. Certain change in control transactions may cause awards granted under the 2017 Plan to vest, unless the awards are continued or substituted for in connection with the transaction. The 2017 Plan authorizes and reserves 21.1 million shares for issuance. The number of shares available under the 2017 Plan are also increased from time to time by: (i) the number of shares subject to outstanding awards granted under Ciena’s prior equity compensation plans that are forfeited, expire or are canceled without delivery of common stock following the effective date of the 2017 Plan, and (ii) the number of shares subject to awards assumed or substituted in connection with the acquisition of another company. As of October 29, 2022, the total number of shares authorized for issuance under the 2017 Plan was 21.1 million and approximately 9.4 million shares remained available for issuance thereunder. Stock Options There were no stock options granted by Ciena during fiscal 2022, fiscal 2021 or fiscal 2020. Outstanding stock option awards granted to employees in prior periods are generally subject to service-based vesting conditions and vest over a four-year period. The following table is a summary of Ciena’s stock option activity for the periods indicated (shares in thousands): Balance at October 30, 2021 Granted Exercised Canceled Balance at October 29, 2022 124 Shares Underlying Options Outstanding 83 — (46) (5) 32 Weighted Average Exercise Price $32.46 — $31.44 $51.64 $30.98 The total intrinsic value of options exercised during fiscal 2022, fiscal 2021 and fiscal 2020 was $1.6 million, $0.5 million and $1.3 million, respectively. The following table summarizes information with respect to stock options outstanding at October 29, 2022, based on Ciena’s closing stock price on the last trading day of Ciena’s fiscal 2022 (shares and intrinsic value in thousands): Range of Exercise Price $14.38 — $18.22 $32.06 — $46.30 $14.38 — $46.30 Options Outstanding and Vested at October 29, 2022 Weighted Average Remaining Contractual Life (Years) 1.56 0.43 0.87 Number of Underlying Shares 13 19 32 Weighted Average Exercise Price $16.02 $40.67 $30.98 Aggregate Intrinsic Value $401 145 $546 Assumptions for Option-Based Awards Ciena recognizes the fair value of stock options as share-based compensation expense on a straight-line basis over the requisite service period. Ciena did not grant any option-based awards during fiscal 2022, fiscal 2021 or fiscal 2020. Restricted Stock Units A restricted stock unit is a stock award that entitles the holder to receive shares of Ciena common stock as the unit vests. Ciena’s outstanding restricted stock unit awards are subject to service-based vesting conditions and/or performance-based vesting conditions. Awards subject to service-based conditions typically vest in increments over a three or four-year period. However, the 2017 Plan permits Ciena to grant service-based stock awards with a minimum one-year vesting period. Awards with performance-based vesting conditions (i) require the achievement of certain operational, financial or other performance criteria or targets or (ii) vest based on Ciena’s total stockholder return as compared to an index of peer companies, in whole or in part. Assumptions for Restricted Stock Unit Awards Ciena recognizes the estimated fair value of restricted stock units subject only to service-based vesting conditions by multiplying the number of shares underlying the award by the closing price per share of Ciena common stock on the grant date. Share-based expense for service-based restricted stock unit awards is recognized ratably over the vesting period on a straight-line basis. Ciena recognizes the estimated fair value of restricted stock units subject to performance-based vesting conditions other than total stockholder return, by assuming the satisfaction of any performance-based objectives at the “target” level and multiplying the corresponding number of shares earned based upon such achievement by the closing price per share of Ciena common stock on the grant date. Share-based compensation expense is recognized over the performance period, using graded vesting, which considers each performance period or tranche separately, based on Ciena’s determination of whether it is probable that the performance targets will be achieved. At the end of each reporting period, Ciena reassesses the probability of achieving the performance targets and the performance period required to meet those targets. The estimation of whether the performance targets will be achieved involves judgment. Revisions are reflected in the period in which the estimate is changed. If any performance goals are not met, no compensation cost is ultimately recognized against that goal and, to the extent previously recognized, compensation expense is reversed. 125 Share-based compensation expense for restricted stock units subject only to service-based vesting conditions and restricted stock units subject to performance-based vesting conditions other than total stockholder return, is recognized only for those awards that ultimately vest. In the event of a forfeiture of an award, the expense related to the unvested portion of that award is reversed. Reversal of share-based compensation expense based on forfeitures can materially affect the measurement of estimated fair value of Ciena’s share-based compensation. Ciena recognizes the estimated fair value of performance based awards subject to total stockholder return as compared to an index of peer companies using a Monte Carlo simulation valuation model. Ciena reverses share- based compensation expense on performance based awards subject to total shareholder return only when the requisite service period is not reached. Assumptions for awards granted during fiscal 2022, fiscal 2021 and fiscal 2020 included the following: Expected volatility of Ciena common stock, which is a weighted average of implied volatility and historical volatility Historical volatility of Ciena common October 29, 2022 October 30, 2021 October 31, 2020 Year Ended 38.27% 41.00% 31.77% stock 42.17% 42.80% 36.29% Historical volatility of S&P Networking Index Correlation coefficient Expected life in years Risk-free interest rate Expected dividend yield 27.22% 0.7049 2.89 0.94% 0.0% 27.30% 0.6800 2.87 0.17% 0.0% 18.40% 0.5891 2.87 1.65% 0.0% The following table is a summary of Ciena’s restricted stock unit activity for the period indicated, with the aggregate fair value of the balance outstanding at the end of each period, based on Ciena’s closing stock price on the last trading day of the relevant period (shares and aggregate fair value in thousands): Balance at October 30, 2021 Granted Vested Canceled or forfeited Balance at October 29, 2022 Weighted Average Grant Date Fair Value Per Share Aggregate Fair Value $43.67 $221,733 Restricted Stock Units Outstanding 4,084 2,361 (2,030) (312) 4,103 $55.16 $197,960 As of October 29, 2022 and October 30, 2021, 0.3 million of the total restricted stock units outstanding are performance based awards subject to total stockholder return. The total fair value of restricted stock units that vested and were converted into common stock during fiscal 2022, fiscal 2021 and fiscal 2020 was $119.0 million, $110.0 million and $83.5 million, respectively. The weighted average fair value of each restricted stock unit granted by Ciena during fiscal 2022, fiscal 2021 and fiscal 2020 was $67.03, $48.70 and $41.61, respectively. Amended and Restated ESPP Ciena makes shares of its common stock available for purchase under the ESPP under which, eligible employees may enroll in a twelve-month offer period that begins in December and June of each year. Each offer 126 period includes two six-month purchase periods. Employees may purchase a limited number of shares of Ciena common stock at 85% of the fair market value on either the day immediately preceding the offer date or the purchase date, whichever is lower. The ESPP is considered compensatory for purposes of share-based compensation expense. Unless earlier terminated, the ESPP will terminate on April 1, 2031. During fiscal 2022, fiscal 2021 and fiscal 2020, Ciena issued 0.7 million shares under the ESPP, for each year. At October 29, 2022, 12.2 million shares remained available for issuance under the ESPP. Share-Based Compensation Expense The following table summarizes share-based compensation expense for the periods indicated (in thousands): Products Services Share-based compensation expense included in cost of goods sold Research and development Sales and marketing General and administrative Share-based compensation expense included in operating expense Share-based compensation expense capitalized in inventory, net Year Ended October 29, 2022 October 30, 2021 October 31, 2020 $ 3,867 7,533 $ 3,408 5,181 $ 3,182 3,853 11,400 31,879 31,280 30,435 8,589 21,863 25,152 28,804 7,035 16,987 20,194 23,424 93,594 75,819 60,605 137 (72) 118 Total share-based compensation $105,131 $84,336 $67,758 As of October 29, 2022, total unrecognized share-based compensation expense was $185.7 million which relates to unvested restricted stock units and is expected to be recognized over a weighted-average period of 1.51 years. (25) SEGMENT AND ENTITY WIDE DISCLOSURES Segment Reporting Ciena has the following operating segments for reporting purposes: (i) Networking Platforms; (ii) Platform Software and Services; (iii) Blue Planet Automation Software and Services; and (iv) Global Services. Ciena’s long-lived assets, including equipment, building, furniture and fixtures, operating ROU assets, finite-lived intangible assets, and maintenance spares, are not reviewed by Ciena’s chief operating decision maker for purposes of evaluating performance and allocating resources. As of October 29, 2022, equipment, building, furniture and fixtures, net, totaled $267.8 million, and operating ROU assets totaled $45.1 million both of which support asset groups within Ciena’s four operating segments and unallocated selling and general and administrative activities. As of October 29, 2022, finite-lived intangible assets, goodwill and maintenance spares are assigned to asset groups within the following segments (in thousands): Other intangible assets, net Goodwill Maintenance spares, net October 29, 2022 Networking Platforms Platform Software and Services $38,163 $83,082 $ — $ — $156,191 $ — Blue Planet Automation Software and Services $31,354 $89,049 $ — 127 Global Services Total $ — $ — $44,815 $ 69,517 $328,322 $ 44,815 Segment Profit (Loss) Segment profit (loss) is determined based on internal performance measures used by Ciena’s chief executive officer to assess the performance of each operating segment in a given period. In connection with that assessment, the chief executive officer excludes the following items: selling and marketing costs; general and administrative costs; significant asset impairments and restructuring costs; amortization of intangible assets; acquisition and integration costs; interest and other income (loss), net; interest expense; loss on extinguishment and modification of debt and provision (benefit) for income taxes. The table below sets forth Ciena’s segment profit (loss) and the reconciliation to consolidated net income for the respective periods indicated (in thousands): Segment profit (loss): Networking Platforms Platform Software and Services Blue Planet Automation Software and Services Global Services Total segment profit Less: non-performance operating expenses Selling and marketing General and administrative Significant asset impairments and restructuring costs Amortization of intangible assets Acquisition and integration costs Add: other non-performance financial items Interest and other income (loss), net Interest expense Loss on extinguishment and modification of debt Less: Provision (benefit) for income October 29, 2022 October 30, 2021 October 31, 2020 Year Ended $572,305 175,108 $ 850,901 136,602 $ 827,105 105,609 (22,388) 210,663 935,688 (711) 198,521 (12,446) 202,735 1,185,313 1,123,003 466,565 179,382 33,824 32,511 598 452,214 181,874 29,565 23,732 2,572 416,425 169,548 22,652 23,383 4,031 6,747 (47,050) (1,768) (30,837) 964 (31,321) — — (646) taxes 29,603 (37,445) 94,670 Consolidated net income $152,902 $ 500,196 $ 361,291 Entity Wide Reporting The following table reflects Ciena’s geographic distribution of equipment, building, furniture and fixtures, net, and operating ROU assets, with any country accounting for at least 10% of total equipment, building, furniture and fixtures, net, and operating ROU assets specifically identified. Equipment, building, furniture and fixtures, net, and operating ROU assets attributable to geographic regions outside of the United States and 128 Canada are reflected as “Other International.” For the periods below, Ciena’s geographic distribution of equipment, building, furniture and fixtures, net, and operating ROU assets was as follows (in thousands): Canada United States Other International Total October 29, 2022 October 30, 2021 $226,451 47,515 38,921 $312,887 $240,968 50,744 37,541 $329,253 (26) OTHER EMPLOYEE BENEFIT PLANS Ciena has a Defined Contribution Pension Plan that covers a majority of its Canada-based employees. The plan covers all Canada-based employees who are not part of an excluded group. Total contributions (employee and employer) cannot exceed the lesser of 18% of participant earnings and an annual dollar limit of CAD$29,210 (approximately $21,305 for 2022). This plan includes a required employer contribution of 1% for all participants and an employer matching contribution equal to 50% of the first 6% an employee contributes each pay period. During fiscal 2022, 2021 and 2020, Ciena made matching contributions of approximately CAD$10.1 million (approximately $7.4 million), CAD$8.3 million (approximately $6.7 million) and CAD$7.0 million (approximately $5.7 million), respectively. Ciena has a 401(k) defined contribution profit sharing plan that covers a majority of its United States-based employees. Participants may contribute up to 60% of base pay through pre-tax or Roth contributions, subject to certain limitations. The plan includes an employer matching contribution equal to 50% of the first 8% an employee contributes each pay period. Ciena may also make discretionary annual profit contributions up to the IRS regulated limit. Ciena has made no profit sharing contributions to date. During fiscal 2022, 2021 and 2020, Ciena made matching contributions of approximately $9.2 million, $8.4 million and $7.5 million, respectively. (27) COMMITMENTS AND CONTINGENCIES Tax Contingencies Ciena is subject to various tax liabilities arising in the ordinary course of business. Ciena does not expect that the ultimate settlement of these tax liabilities will have a material effect on its results of operations, financial position or cash flows. Litigation Ciena is subject to various legal proceedings, claims and other matters arising in the ordinary course of business, including those that relate to employment, commercial, tax and other regulatory matters. Ciena is also subject to intellectual property related claims, including claims against third parties that may involve contractual indemnification obligations on the part of Ciena. Ciena does not expect that the ultimate costs to resolve such matters will have a material effect on its results of operations, financial position or cash flows. Purchase Order Obligations Ciena has certain advanced orders for supply of certain long lead time components. As of October 29, 2022, Ciena had $2.6 billion in outstanding purchase order commitments to contract manufacturers and component suppliers for inventory. In certain instances, Ciena is permitted to cancel, reschedule or adjust these orders. Consequently, only a portion of this amount relates to firm, non-cancelable and unconditional obligations. 129 (28) SUBSEQUENT EVENTS Acquisitions During the first quarter of fiscal 2023, Ciena closed on the acquisition of Benu Networks, a portfolio of cloud-native software solutions, including a virtual Broadband Network Gateway ((v)BNG), that complement Ciena’s existing portfolio of broadband access solutions. On November 22, 2022, Ciena entered into a definitive agreement to acquire Tibit Communications, Inc. Tibit combines passive optical network (PON)-specific hardware and operating software into a micro pluggable transceiver that can be integrated into a carrier-grade Ethernet switch and which will strengthen Ciena’s portfolio to deliver next-generation PON solutions that support residential, enterprise and mobility use cases. Ciena will acquire the remaining shares of Tibit that it does not already own in a cash-free, debt-free transaction currently valued at approximately $210 million, subject to adjustments for cash and debt, with the merger consideration to be paid in cash. In addition, Ciena will enter into certain employee retention arrangements in connection with the transaction. The transaction is expected to close during Ciena’s first quarter fiscal 2023. 130 Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure None. Item 9A. Controls and Procedures Disclosure Controls and Procedures As of the end of the period covered by this report, we carried out an evaluation under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). Based on this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of the end of the period covered by this report. Changes in Internal Control over Financial Reporting There was no change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended) during the most recently completed fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting. Report of Management on Internal Control Over Financial Reporting The management of Ciena Corporation is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934). The internal control over financial reporting at Ciena Corporation was designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States of America. Internal control over financial reporting includes those policies and procedures that: • • • • pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of Ciena Corporation; provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with accounting principles generally accepted in the United States of America; provide reasonable assurance that receipts and expenditures of Ciena Corporation are being made only in accordance with authorization of management and directors of Ciena Corporation; and provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of assets that could have a material effect on the consolidated financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Management of Ciena Corporation assessed the effectiveness of the Company’s internal control over financial reporting as of October 29, 2022. Management based this assessment on criteria for effective internal control over financial reporting described in “COSO 2013 Internal Control — Integrated Framework” issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, management determined that, as of October 29, 2022, Ciena Corporation maintained effective internal control over financial reporting. Management reviewed the results of its assessment with the Audit Committee of our Board of Directors. 131 PricewaterhouseCoopers LLP, independent registered public accounting firm, who audited and reported on the consolidated financial statements of Ciena Corporation included in this annual report, has also audited the effectiveness of Ciena Corporation’s internal control over financial reporting as of October 29, 2022, as stated in its report appearing in Item 8 of Part II of this annual report. /s/ Gary B. Smith Gary B. Smith President and Chief Executive Officer December 16, 2022 Item 9B. Other Information None. /s/ James E. Moylan, Jr. James E. Moylan, Jr. Senior Vice President and Chief Financial Officer December 16, 2022 Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspection Not applicable. 132 Item 10. Directors, Executive Officers and Corporate Governance PART III Information relating to our directors and executive officers is set forth in Part I of this annual report under the caption “Item 1. Business—Information About Our Directors and Executive Officers.” Additional information responsive to this item concerning our Audit Committee and regarding compliance with Section 16(a) of the Exchange Act is incorporated herein by reference from our definitive proxy statement with respect to our 2023 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the fiscal year covered by this Form 10-K. As part of our system of corporate governance, our board of directors has adopted a code of ethics that is specifically applicable to our chief executive officer and senior financial officers. This Code of Ethics for Senior Financial Officers, as well as our Code of Business Conduct and Ethics, applicable to all directors, officers and employees, are available on the “Corporate Governance” page of our website at www.ciena.com. We intend to satisfy any disclosure requirement under Item 5.05 of Form 8-K regarding an amendment to, or waiver from, a provision of the Code of Ethics for Senior Financial Officers by posting such information on our website at the address above. Item 11. Executive Compensation Information responsive to this item is incorporated herein by reference from our definitive proxy statement with respect to our 2023 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the fiscal year covered by this Form 10-K. Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters Information responsive to this item is incorporated herein by reference from our definitive proxy statement with respect to our 2023 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the fiscal year covered by this Form 10-K. Item 13. Certain Relationships and Related Transactions, and Director Independence Information responsive to this item is incorporated herein by reference from our definitive proxy statement with respect to our 2023 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the fiscal year covered by this Form 10-K. Item 14. Principal Accountant Fees and Services Information responsive to this item is incorporated herein by reference from our definitive proxy statement with respect to our 2023 Annual Meeting of Stockholders to be filed with the SEC within 120 days after the end of the fiscal year covered by this Form 10-K. 133 Item 15. Exhibits and Financial Statement Schedules PART IV (a) 1. The information required by this item is included in Item 8 of Part II of this annual report. 2. The information required by this item is included in Item 8 of Part II of this annual report. 3. Exhibits: See Index to Exhibits, which is incorporated by reference in this Item. The Exhibits listed in the accompanying Index to Exhibits are filed herewith or incorporated by reference as part of this annual report. (b) Exhibits. See Index to Exhibits, which is incorporated by reference in this Item. The Exhibits listed in the accompanying Index to Exhibits are filed herewith or incorporated by reference as part of this annual report. (c) Not applicable. Item 16. Form 10-K Summary None. 134 SIGNATURES Pursuant to the requirements of Section 13 or 15(d) 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 on the 16th day of December 2022. Ciena Corporation By: /s/ Gary B. Smith Gary B. Smith President, Chief Executive Officer and Director Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the date indicated. Signatures Title Date /s/ Patrick H. Nettles, Ph.D. Patrick H. Nettles, Ph.D. /s/ Gary B. Smith Gary B. Smith (Principal Executive Officer) /s/ James E. Moylan, Jr. James E. Moylan, Jr. (Principal Financial Officer) /s/ Andrew C. Petrik Andrew C. Petrik (Principal Accounting Officer) /s/ Hassan M. Ahmed, Ph.D. Hassan M. Ahmed, Ph.D. /s/ Bruce L. Claflin Bruce L. Claflin /s/ Lawton W. Fitt Lawton W. Fitt /s/ Patrick T. Gallagher Patrick T. Gallagher /s/ Devinder Kumar Devinder Kumar /s/ T. Michael Nevens T. Michael Nevens /s/ Judith M. O’Brien Judith M. O’Brien /s/ Joanne B. Olsen Joanne B. Olsen Executive Chairman of the Board of Directors December 16, 2022 President, Chief Executive Officer and Director December 16, 2022 Sr. Vice President, Finance and Chief Financial Officer December 16, 2022 Vice President, Controller December 16, 2022 Director Director Director Director Director Director Director Director 135 December 16, 2022 December 16, 2022 December 16, 2022 December 16, 2022 December 16, 2022 December 16, 2022 December 16, 2022 December 16, 2022 [THIS PAGE INTENTIONALLY LEFT BLANK] Shareholder Information Corporate Headquarters Ciena Corporation 7035 Ridge Road Hanover, MD 21076 Telephone: (800) 921.1144 or (410) 694.5700 ciena.com Virtual Annual Meeting Ciena’s annual meeting of shareholders will be held at 3:00 p.m. (Eastern) on Thursday, March 30, 2023. Please visit www. virtualshareholdermeeting.com/CIEN2023 at least 10 minutes prior to the start time. Independent Registered Public Accounting Firm PricewaterhouseCoopers LLP Transfer Agent Computershare Trust Company, N.A. P.O. Box 43078 Providence, RI 02940-3078 Stockholder Inquiries (781) 575.2879 Computershare.com Common Stock Market Data NYSE: CIEN Investor Relations For additional information, contact: Investor Relations Ciena Corporation 7035 Ridge Road Hanover, MD 21076 Telephone: (877) 243.6273 Additional information is available on Ciena’s website at investor.ciena.com . m o c e s o p r u p n o s a e d i ; Y N , e s o p r u P n O s a e d I : i n g s e D & y g e t a r t S NOTES TO INVESTORS The Annual Report contains certain forward-looking statements regarding future events or results that involve risks and uncertainties. These statements are based on current expectations, forecasts, assumptions and other information available to Ciena as of the date hereof. Forward-looking statements include Ciena’s long-term financial targets, prospective financial results, return of capital plans, business strategies, expectations about its addressable markets and market share, and business outlook for future periods, as well as statements regarding Ciena’s expectations, beliefs, intentions or strategies regarding the future. Often, these can be identified by forward-looking words such as “target”, “anticipate”, “believe”, “could“, “estimate”, “expect”, “intend”, “may”, “should”, “will”, “would”, “plan”, “predict”, “potential”, “project”, and “continue”, or similar words. Ciena’s actual results, performance or events may differ materially from these forward-looking statements made or implied due to a number of risks, and uncertainties relating to Ciena’s business, including the effect of broader economic and market conditions on our customers and their business; our ability to execute our business and growth strategies; the impact of supply chain constraints or disruptions; the duration and severity of the COVID-19 pandemic and the impact of countermeasures taken to mitigate its spread on macroeconomic conditions, economic activity, demand for our technology solutions, short- and long-term changes in customer or end-user needs, continuity of supply chain, our business operations, liquidity and financial results; changes in network spending or network strategy by our customers; seasonality and the timing and size of customer orders, including our ability to recognize revenue relating to such sales; the level of competitive pressure we encounter; the product, customer and geographic mix of sales within the period; changes in foreign currency exchange rates; factors beyond our control such as natural disasters, climate change, acts of war or terrorism, geopolitical events, including but not limited to the ongoing conflict between Ukraine and Russia, and public health emergencies; changes in tax or trade regulations, including the imposition of tariffs, duties or efforts to withdraw from or materially modify international trade agreements; and the other risk factors disclosed in Ciena’s Annual Report and Form 10-K combined herein. All information, statements, and projections in the Annual Report speak only as of the date of the Annual Report. Ciena assumes no obligation to revise or update any forward-looking or other information included in this Annual Report, whether as a result of new information, future events, or otherwise. This document also includes certain adjusted or non-GAAP measures of Ciena’s results of operations. These measures are not intended to be a substitute for financial information presented in accordance with GAAP. A reconciliation of these non-GAAP measures to Ciena’s GAAP results are included in the press release for the event period available on Ciena.com. 7035 Ridge Road Hanover, MD 21076 (800) 921.1144 or (410) 694.5700 ciena.com