CIEN Ciena Corporation

Ciena Corporation

7035 Ridge Road

Hanover, Maryland 21076

Notice of Annual Meeting of Stockholders

To the Stockholders of Ciena Corporation:

The 2024 Annual Meeting of Stockholders of Ciena Corporation will be held on March 21, 2024 at 3:00 p.m. Eastern Time. Our Annual Meeting will be a virtual meeting held over the Internet. You will be able to attend the Annual Meeting, vote your shares electronically and submit your questions during the live webcast of the meeting by visiting www.virtualshareholdermeeting.com/CIEN2024 and entering your 16-digit control number included in the notice containing instructions on how to access Annual Meeting materials, your proxy card, or the voting instructions that accompanied your proxy materials.

These matters are more fully described in the proxy statement accompanying this notice. You are entitled to notice of, and are eligible to vote at, this year’s Annual Meeting if you were a stockholder of record as of the close of business on January 22, 2024.

We believe that your vote, and the vote of every Ciena stockholder, is important. Whether or not you plan to participate in the Annual Meeting, we encourage you to review the accompanying proxy statement for information relating to each of the proposals and to cast your vote promptly.

Hanover, Maryland

Table of contents

Cautionary note regarding forward-looking statements

This proxy statement contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), that are based on current expectations, forecasts, assumptions and other information available to Ciena Corporation (“Ciena” or “we”) as of the date hereof. Forward-looking statements involve inherent risks and uncertainties, include statements regarding Ciena’s expectations, beliefs, intentions or strategies regarding the future, including with respect to business, financial, operational, compensation and environmental, social and governance matters, and can be identified by forward-looking words such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “goal,” “intend,” “may,” “plan,” “should,” “will,” and “would” 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 Ciena’s customers and their business, Ciena’s ability to execute its business and growth strategies and to achieve environmental, social and governance (“ESG”) goals, the impact of the global supply environment and other macroeconomic conditions, and the risks and uncertainties discussed in Ciena’s Annual Report on Form 10-K for fiscal 2023 (“2023 Annual Report”) as well as Ciena’s other filings with the Securities and Exchange Commission (the “SEC”). Ciena undertakes no obligation to revise or update any forward-looking statements made in this proxy statement, whether as a result of new information, future events or circumstances, or otherwise, except as required by law.

Information contained on or available through our website is not incorporated by reference in or made part of this proxy statement and any references to our website are intended to be inactive textual references only.

Proxy statement summary

This summary highlights information that is contained elsewhere in this proxy statement. It does not include all information necessary to make a voting decision, and you should read this proxy statement in its entirety before casting your vote.

Ciena at a glance

Industry-leading, global networking systems, services and software company

* As cited by Omdia, Dell’Oro Group, or Cignal AI for different markets

Foundational strengths						Strategic initiatives
		Leading technology & innovation   we own the key enabling technologies for our solutions and use our significant R&D investment capacity to push the pace of innovation in our industry						Lead   grow our core business by strengthening our optical innovation leadership, increasing optical market share, pursuing coherent pluggables, increasing international business and growing attached services
		Diversification   we have a broad-based business that spans a diverse set of customer segments, a wide range of solutions and applications, and multiple geographies						Invest   invest in next generation metro and edge by expanding use cases for our portfolio and addressable market opportunity, promoting coherent routing solutions, and leveraging pluggable PON innovation
		Global scale   we have significant talent and deep resources in engineering, sales, services and customer support that advance our global business						Expand   drive digital transformation and network automation, grow our software business, and pursue advanced services-led transformation

2024 Proxy Statement		1

Business highlights

Fiscal 2023 business performance

Fiscal 2023 financial performance

(approximate)

Contained above, and elsewhere in this proxy statement, are certain non-GAAP measures of Ciena’s financial performance for fiscal 2022 and 2023. These measures, along with their corresponding GAAP measures and reconciliations thereto, were previously disclosed in exhibits to Ciena’s Current Report on Form 8-K filed with the SEC on December 7, 2023. Also see “Non-GAAP Measures” on page 94 for more information about these measures and how they are used.

2		2024 Proxy Statement

Fiscal 2023 executive compensation highlights

Pay-for-performance alignment

CEO fiscal 2023 target total direct compensation mix				Average non-CEO NEO fiscal 2023 target total direct compensation mix

2024 Proxy Statement		3

Corporate governance and stockholder outreach

Stockholder outreach and engagement

We believe that strong corporate governance practices should include regular outreach and conversations with our stockholders, with whom we regularly discuss our business, financial performance, industry dynamics, compensation, and ESG matters. We actively seek engagement with stockholders of all sizes through a combination of virtual and in-person engagements, including our annual meeting, our website, investor conferences, and one-on-one meetings where appropriate. For example, in the last 12 months, we have engaged with more than half of our 25 largest stockholders an aggregate of almost 60 times. Our Board of Directors also reviews material stockholder engagements as well as any stockholder inquiries directly related to its responsibilities. These regular engagements allow us to obtain feedback on stockholders’ perception and understanding of our markets, business and industry. They have also influenced our communications, which include detail on key elements of our corporate strategy, long-term financial targets and an articulation of our capital allocation priorities.

In May 2023, we published our 2022 Sustainability Report and, in October 2023, we published an updated ESG investor presentation, both of which are available publicly on our website. We proactively distributed this information to our top 17 stockholders, representing approximately 54% of our outstanding shares, and members of our leadership team met with five of these stockholders on these topics. Information contained on or available through our website is not incorporated by reference in or made part of this proxy statement and any references to our website are intended to be inactive textual references only.

Recent governance changes

Existing strong governance structure

4		2024 Proxy Statement

Voting roadmap

This section highlights selected information about the items to be voted on at the Annual Meeting. It does not contain all information that you should consider in deciding how to vote. You should read the entirety of this proxy statement carefully before voting.

2024 Proxy Statement		5

Proposal No. 1

Election of Class III Directors and Class II Director

Overview

Our Board of Directors currently consists of ten directors divided into three classes. Each class of our Board of Directors serves a three-year term, and the terms of each class are staggered. At the Annual Meeting, four directors will be elected to fill positions in Class III. Hassan M. Ahmed, Ph.D., Bruce L. Claflin, Patrick T. Gallagher, and T. Michael Nevens, each of whom is a current Class III director whose current term expires at the Annual Meeting, are nominees for election at the Annual Meeting. Each of the nominees for Class III, if elected, will serve for a three-year term expiring at the 2027 Annual Meeting, or until such director’s successor is duly elected and qualified, or until such director’s earlier death, resignation, or removal from the Board.

Effective August 30, 2023, the Board of Directors increased the size of the Board from nine to ten directors and appointed Mary G. Puma to fill the newly created vacancy in Class II of the Board. Ms. Puma was initially identified as a possible candidate for Board service as part of a review of the external networks of members of our Board of Directors, and a vetting process involving management, the Board, and a third-party search firm engaged by the Board was conducted prior to her recommendation. The term of office for Class II directors continues until the 2026 Annual Meeting, or until their successors are duly elected and qualified. Our bylaws, however, limit the term of office of any director appointed by the Board of Directors to fill a vacancy to a term that lasts until the first annual meeting following appointment. Ms. Puma is therefore a nominee for election at the Annual Meeting. Our bylaws also provide that any director so elected will serve the remainder of the term of the class to which such director was elected. Accordingly, if elected by stockholders at the Annual Meeting, Ms. Puma will serve the remainder of her term as a Class II director until the 2026 Annual Meeting, or until her successor is duly elected and qualified, or until her earlier death, resignation, or removal from the Board.

The nomination of these directors to stand for election at the Annual Meeting has been recommended by the Governance and Nominations Committee and approved by the Board of Directors.

Director qualifications

The Governance and Nominations Committee reviews candidates for service on the Board of Directors and recommends nominees for election to fill vacancies on the Board, including nomination for re-election of directors whose terms are due to expire. The Governance and Nominations Committee endeavors to identify, recruit and nominate candidates who possess a combination of wisdom, sound judgment, excellent business skills, maturity, and high integrity. In particular, the Governance and Nominations Committee seeks individuals with a record of accomplishment and senior leadership experience in their chosen fields who display the independence of mind and strength of character to be committed to representing the long-term interests of various stakeholders, including our stockholders, customers, partners, employees and community.

The Governance and Nominations Committee also seeks to ensure that the Board of Directors is composed of individuals of diverse backgrounds, including with respect to gender, ethnicity, race, nationality and age, who have a variety of complementary experience, skills and relationships relevant to Ciena’s business and industry. The Governance and Nominations Committee also sees the benefit of diversity in terms of tenure and having a mix of individuals with a diverse range of experience as a director, whether on Ciena’s Board or that of another company. This diversity of background and experience includes ensuring that the Board includes individuals with experience or skills sufficient to meet the requirements of the various rules and regulations of The New York Stock Exchange (the “NYSE”) and the SEC, such as the requirements to have a majority of independent directors, committees composed only of independent directors, and an audit committee financial expert. As required by the Governance and Nominations Committee Charter, the committee has developed and uses criteria for maintaining a balanced board of directors that possess a diversity of characteristics and recommends criteria, establishes procedures for, and conducts an annual review of the Board and the diversity and other characteristics of individual directors and reports to the Board on the results of the review.

In nominating candidates to fill vacancies created by the expiration of the term of a director, the Governance and Nominations Committee determines whether the incumbent director is willing to stand for re-election. If so, the Governance and Nominations Committee evaluates the director’s performance to determine suitability for continued service, taking into consideration, among other things, the director’s contributions to the Board, the value of the continuity of the director’s service, and the director’s familiarity with Ciena’s markets, business and operations.

2024 Proxy Statement		7

Board composition and diversity – continuing directors and nominees

Independence and diversity

The above charts reflect information for our nominees and continuing directors. Annually, we ask each of our nominees and continuing directors to self-identify based on both their skills and experience and a range of diversity characteristics, including gender, race, ethnicity, sexual orientation, and disability. In response, three of our nominees and continuing directors self-identified as female and two self-identified as Asian or South Asian, one of whom self-identified as an Indian American from Malaysia. Each of the nominees has consented to serve if elected. However, if any of the persons nominated by the Board of Directors fails to stand for election, or declines to accept election, or is otherwise unavailable for election prior to our Annual Meeting, proxies solicited by our Board of Directors will be voted by the proxy holders for the election of any other person or persons as the Board of Directors may recommend, or our Board of Directors, at its option, may reduce the number of directors that constitute the entire Board of Directors.

8		2024 Proxy Statement

Information regarding nominees and continuing directors

Director nominees

Class III director nominees for terms expiring in 2027

2024 Proxy Statement		9

Class II director nominee for term expiring in 2026

2024 Proxy Statement		11

Continuing directors

Class I directors with terms expiring in 2025

12		2024 Proxy Statement

Class II directors with terms expiring in 2026

2024 Proxy Statement		13

Corporate governance and the Board of Directors

Ciena has adopted a number of policies and practices that highlight our commitment to sound corporate governance principles and sustainability. We maintain a corporate governance page on our website that includes additional related information, as well as governance documents such as our bylaws, codes of conduct, Principles of Corporate Governance, and the charters for each of the standing committees of the Board of Directors. This information and documentation can be found on the “Corporate Responsibility – Governance Documents” page of the “Investors” section of our website at www.ciena.com.

Independent directors

In accordance with the current NYSE listing standards, the Board of Directors, on an annual basis, affirmatively determines the independence of each director or nominee for election as a director. The Board of Directors has determined that, with the exception of Dr. Nettles and Mr. Smith, both of whom are employees and executive officers of Ciena, all of its members during fiscal 2023 are or during their tenure were “independent directors,” using the definition of that term in the NYSE Listed Company Manual. Also, as more fully described below, all members of the Board’s standing Audit, Compensation and Governance and Nominations Committees are independent directors, and all members of the Board’s standing Audit and Compensation Committees are independent directors in accordance with the additional listing standards applicable to those committees.

Communicating with the Board of Directors

The Board of Directors has adopted a procedure for receiving and addressing communications from all interested parties, including Ciena’s stockholders. Interested parties may send written communications to the entire Board of Directors (or any committee thereof), Ciena’s Lead Independent Director, or all of the independent directors serving on the Board, by addressing communications to:

Ciena Corporation

7035 Ridge Road

Hanover, Maryland 21076

Attention: Corporate Secretary

Please address any communication by e-mail to ir@ciena.com with “Attention: Corporate Secretary” in the subject line.

Our Corporate Secretary determines, in his discretion, whether the nature of the communication is such that it should be brought to the attention of the Board of Directors or a committee thereof, the Lead Independent Director, or all of the independent directors. As a general matter, the Corporate Secretary does not forward spam, junk mail, mass mailings, job inquiries, surveys, business solicitations or advertisements, or offensive or inappropriate material.

2024 Proxy Statement		15

Environmental, social, and governance (ESG) practices

At Ciena, we are propelled to not only innovate differently but also to do good in the world—driving meaningful social impact in our communities, fostering environmental stewardship, and nurturing an inclusive culture where everyone belongs. Over the last year, we advanced our sustainability efforts by further integrating environmental considerations into our products and operations, investing in our people and their wellbeing, and engaging in the communities where we live and work. As provided in our Principles of Corporate Governance, the Board of Directors oversees and reviews management’s strategy and approach toward ESG matters, and ensures that such strategy and approach is adequately communicated to our stockholders. In December 2023, we amended our Governance and Nominations Committee charter to provide for its oversight of our executive-level Sustainability Leadership Committee, including the execution of our sustainability strategy and programming, the development and monitoring of goals and the adequacy and accuracy of our related data. Information on some of our environmental, social, and governance practices, including related policies and programs, can be found in our latest Sustainability Report and in the “About Us” section of our website www.ciena.com. Additional stories and content related to both ESG and our People and Culture programs can be found on the “CienaLife” pages of our website.

Highlights of certain recent developments and our current practices in these areas are described below.

16		2024 Proxy Statement

Principles of Corporate Governance, Bylaws, and other governance documents

The Board of Directors has adopted Principles of Corporate Governance and other corporate governance policies that supplement certain provisions of our bylaws and relate to the composition, structure, interaction and operation of the Board of Directors. Copies of our Principles of Corporate Governance, bylaws, stock ownership guidelines and other governance documents can be found on the “Corporate Responsibility – Governance Documents” page of the “Investors” section of our website at www.ciena.com. You should review these documents for a complete understanding of these corporate governance practices, but some of the key elements of our strong governance policies and practices are summarized below:

Insider Trading Policy

We maintain an insider trading policy that applies to officers, directors and all employees, temporary employees, consultants, and contractors of Ciena. We believe that our insider trading policy, in part, helps protect our reputation for integrity and ethical conduct. The insider trading policy prohibits insider trading, tipping and pledging shares, trading put or call options, engaging in short sales, and hedging transactions involving Ciena’s securities. In addition, we also maintain a long-standing separate policy governing the ability of Ciena officers, directors and employees to enter into a pre-arranged trading plan pursuant to Rule 10b5-1 of the Exchange Act. This policy was further updated in fiscal 2023 to reflect certain amendments to the SEC regulations relating to such plans.

2024 Proxy Statement		21

Codes of ethics

Code of Business Conduct and Ethics

We maintain a Code of Business Conduct and Ethics that sets standards of conduct for all of Ciena’s directors, officers and employees. The Code of Business Conduct and Ethics reflects Ciena’s policy of dealing with all persons, including our customers, employees, investors, and suppliers, with honesty and integrity. 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.

Code of Ethics for Directors

We maintain a Code of Ethics for Directors, which supplements the obligations of directors under the Code of Business Conduct and Ethics and sets additional standards of conduct for our directors. The Code of Ethics for Directors outlines responsibilities of our directors with respect to their fiduciary duties, conflicts of interest, treatment of confidential Ciena information, communications and other compliance matters. Our Code of Ethics for Directors was updated in December 2023 to, among other things, ensure our directors’ employment or service on the board of any Ciena business partner or competitor does not give rise to a conflict of interest, to address social media activities by directors, and to provide additional detail relating to compliance with insider trading laws.

Code of Ethics for Senior Financial Officers

In accordance with the Sarbanes-Oxley Act of 2002, we maintain a Code of Ethics for Senior Financial Officers that specifically applies to Ciena’s Chief Executive Officer, Chief Financial Officer and Controller. Its purpose is to deter wrongdoing and to promote honest and ethical conduct, and compliance with the law, particularly as it relates to the maintenance of Ciena’s financial records and the preparation of financial statements filed with the SEC. 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 www.ciena.com.

Each of these documents can be found on the “Corporate Responsibility – Governance Documents” page of the “Investors” section of our website at www.ciena.com. Copies of these documents may also be obtained without charge by writing to: Ciena Corporation, 7035 Ridge Road, Hanover, Maryland 21076, Attention: Corporate Secretary.

Board leadership structure

Lead Independent Director

Mr. Gallagher serves as Ciena’s Lead Independent Director. The Lead Independent Director is responsible for coordinating the activities of the other independent directors and has the authority to preside at all meetings of the Board of Directors at which the Executive Chair is not present, including executive sessions of the independent directors. The Lead Independent Director serves as principal liaison on Board-wide issues between the independent directors and the Executive Chair, approves meeting schedules and agendas and monitors the quality of information sent to the Board. The Lead Independent Director may also recommend the retention of outside advisors and consultants who report directly to the Board of Directors. If requested by stockholders and as appropriate, the Lead Independent Director will also be available, as the Board’s liaison, for consultation and direct communication. The Lead Independent Director also assists the Governance and Nominations Committee in guiding both the Board’s annual self-assessment and the CEO succession planning process.

Separation of Chair and CEO roles

Although the Board of Directors does not have a formal policy on separation of the roles of Chief Executive Officer and Chair, Ciena has kept these positions separate since 2001. Separating the Executive Chair and Chief Executive Officer roles allows us efficiently to develop and implement corporate strategy that is consistent with the Board’s oversight role, while facilitating strong day-to-day executive leadership. Mr. Smith currently serves as Chief Executive Officer and Dr. Nettles, who served as Chief Executive Officer until Mr. Smith assumed that role in 2001, serves as Executive Chair.

The Board of Directors believes that its leadership structure is appropriate for Ciena. Through the role of the Lead Independent Director, the independence of the Board’s committees, and the regular use of executive sessions of the independent directors, the Board is able to maintain independent oversight of our business strategy, annual operating plan and other corporate activities. These features, together with the role and responsibilities of the Lead Independent Director described above, ensure a full and free discussion of issues that are important to Ciena and its stockholders. At the same time, the Board is able to take advantage of the unique blend of leadership, experience and knowledge of our industry and business that Dr. Nettles brings to the role of Executive Chair.

22		2024 Proxy Statement

Board oversight of strategy

The Board of Directors believes that it is important to be deeply involved in overseeing and reviewing Ciena’s short- and long-term strategy. The Board oversees and reviews Ciena’s long-term strategic plan, annual operating plan, and strategy and approach toward ESG matters. Because employee engagement, development and retention are critical elements of our strategy, the Board annually reviews our “people strategy”: a comprehensive overview of compensation, benefits, support for employees, growth and development opportunities, and inclusion and diversity. Our full Board of Directors regularly reviews and has responsibility for corporate development activities including potential mergers and acquisitions. Strategy-related matters are discussed regularly at Board meetings, as well as at the committee level when appropriate. Such matters include:

Board oversight of risk

The Board of Directors believes that risk management is an important part of establishing, updating, and executing Ciena’s business strategy. The Board, as a whole and at the committee level, has oversight responsibility relating to risks that could affect our corporate strategy, business objectives, compliance, operations and financial condition and performance. The Board focuses its oversight on the most significant risks facing Ciena and on its processes to identify, prioritize, assess, manage and mitigate those risks, including areas such as:

The Board annually reviews and considers Ciena’s long-term strategic plan, its annual financial and operating plan, and periodically assesses its enterprise risk management program holistically. However, the Board and its committees receive regular reports from members of senior management on areas of material risk to Ciena, including strategic, operational, financial, information and cybersecurity, compliance, legal and regulatory risks. While the Board has an oversight role, management is principally tasked with direct responsibility for management and assessment of risks and the implementation of processes and controls to mitigate their effects on Ciena.

The Board’s leadership structure, with a Lead Independent Director, separate Executive Chair and CEO, independent Board committees with strong Chairs, the active participation of committees in the oversight of risk, and open communication with management, supports the risk oversight function of the Board. Each standing committee of the Board has risk oversight responsibilities and provides regular reports to the Board on at least a quarterly basis, as more fully described below under “Composition and Meetings of the Board of Directors and its Committees.”

For more detail on the risk oversight responsibilities of each of our standing Board Committees, please see the descriptions of the responsibilities of each of the Board Committees below.

Cybersecurity and data privacy

As part of the Board of Directors’ oversight of risk management, the Board devotes time and attention to cybersecurity and data privacy related risks, with the Audit Committee responsible for overseeing cybersecurity, data privacy and information technology related controls, policies and other efforts to mitigate such risks. As part of its standing agenda, the Audit Committee receives regular quarterly updates on information security risks and initiatives from members of senior management, including our Chief Information Security Officer, who reports to our Chief Financial Officer. These updates have included reviews of our cybersecurity risk management efforts including the development of relevant processes and policies, the implementation of technologies, systems or use of third party partners to safeguard our systems environment, the conduct of education and training initiatives with employees and business partners, and incident response preparedness, including simulations and tabletop exercises. The Audit Committee regularly updates the Board on such matters, and the Board also receives updates, not less than annually, from our Chief Information Security Officer on information and cybersecurity risks and related initiatives. In addition, we conduct employee security awareness training, including ongoing regular phishing detection exercises and awareness initiatives, throughout each year. We also maintain an information security risk insurance policy as part of our risk management efforts, and regularly engage and collaborate with peers, industry groups and governments relating to cybersecurity risk management and the evolving threat environment.

2024 Proxy Statement		23

Board education

Ciena provides a robust onboarding process for new members of our Board of Directors and comprehensive ongoing education and training for all Board members on key matters throughout the year, through sessions with both internal and external advisors and experts. Through these sessions, the Board and its Committees receive regular updates on key corporate governance and compliance topics, evolving regulations, and disclosure trends. In fiscal 2023, our Nominations and Governance Committee conducted a review of continuing education program alternatives for the Board, including key topics and various methods for providing such education to the Board. As a result of this review, during fiscal 2023, the Board augmented its regular education practices and conducted continuing education sessions on cybersecurity risk and climate risk and reporting. At the request of the Governance and Nominations Committee, these sessions were jointly conducted by members of senior management with responsibility for such programs with as well as outside subject matter experts.

Composition and meetings of the Board of Directors and its Committees

The table below details the composition of Ciena’s standing Board committees as of the end of fiscal 2023 and the number of Board and committee meetings held during fiscal 2023. Mr. Smith and Dr. Nettles do not serve on standing committees of the Board of Directors.

❖ Chair

Each of our directors attended 100% of the total number of meetings of the Board of Directors and the committees on which they served during fiscal 2023, other than one director who was unable to attend one meeting of the Board of Directors. Ciena encourages, but does not require, members of the Board of Directors to attend the Annual Meeting, and seven of Ciena’s ten directors participated in the virtual Annual Meeting last year. Each of our directors is in compliance with our overboarding limitations contained in our Principles of Corporate Governance.

The Board of Directors has three standing committees: the Audit Committee, the Compensation Committee and the Governance and Nominations Committee. Each committee meets regularly and has a written charter that can be found on the “Corporate Responsibility – Governance Documents” page of the “Investors” section of our website at www.ciena.com. At each regularly scheduled Board meeting, the Chair or a member of each committee reports on any significant matters addressed by the committee.

The Board of Directors’ calendar has in recent years included an increased number of meetings of shorter duration, is designed to operate in either an in-person model, hybrid (virtual and physical) model or a fully virtual and remote environment, and is intended to enable frequent engagement between the Board and management, optimize the productivity and efficiency of Board operations, and space out the substantive work for the Board and management throughout the year. The Board and management believe that the current model of hybrid meetings and increased engagement between the Board and management continue to be beneficial for the Board’s oversight responsibilities.

24		2024 Proxy Statement

Compensation philosophy and objectives

The Compensation Committee seeks to ensure that our compensation policies and practices promote stockholder interests and support our compensation objectives and philosophy. Ciena’s compensation program for our executive officers focuses on addressing the following principal objectives:

In making compensation decisions, the Compensation Committee also seeks to promote teamwork among and high morale within our executive team.

Compensation consultant

To assist in carrying out its responsibilities, the Compensation Committee is authorized to retain the services of independent advisors. For purposes of advice and consultation with respect to the compensation of our executive officers during fiscal 2023, the Committee engaged Compensia, Inc. (“Compensia”), a national compensation consulting firm. Prior to engaging Compensia, the Committee considered and assessed Compensia’s independence. To ensure Compensia’s continued independence and to avoid any actual or apparent conflict of interest, the Committee does not permit Compensia to be engaged to perform any services for Ciena beyond those services provided to the Committee. The Committee has sole authority to retain or terminate Compensia as its executive compensation consultant and to approve its fees and other terms of engagement. The Committee regularly, but not less than annually, considers the independence of its compensation consultant and determines whether any related conflicts of interest require disclosure.

In establishing executive compensation for fiscal 2023, the Compensation Committee relied upon Compensia to:

In addition to its advisory work regarding executive compensation and broad-based equity compensation during fiscal 2023, Compensia was engaged by the Compensation Committee to aid in evaluating the compensation of the non-employee directors as set forth below, to participate in and provide assistance with respect to the Committee’s annual compensation risk assessment, and to review the “Compensation Discussion and Analysis” included in this proxy statement.

Compensation Committee interlocks and insider participation

Dr. Ahmed, Ms. Olsen, and Messrs. Claflin and Gallagher, who comprised the Compensation Committee as of the end of fiscal 2023, are independent directors and were not, at any time during fiscal 2023, or at any other time, officers or employees of Ciena. During fiscal 2023, no member of the Compensation Committee was an executive officer of another entity on whose compensation committee or board of directors an executive officer of Ciena served.

28		2024 Proxy Statement

Director compensation

Our director compensation program is designed both to attract and to fairly compensate highly qualified, non-employee directors to represent our stockholders on the Board of Directors and to act in the stockholders’ best interests. The director compensation program for fiscal 2023 was recommended by the Compensation Committee and approved by our Board of Directors. Our executive officers do not play any role in determining or recommending the amount of non-employee director compensation, except that Mr. Smith and Dr. Nettles vote on the recommendations of the Compensation Committee in their capacities as members of the Board of Directors.

Our Board of Directors includes two Ciena executive officers: Dr. Nettles, who serves as our Executive Chair of the Board, and Mr. Smith, who serves as our Chief Executive Officer. Dr. Nettles does not receive cash compensation for his service as a director, and Mr. Smith does not receive any compensation for his service as a director. Information regarding equity compensation granted to Dr. Nettles during fiscal 2023 can be found in the tabular disclosure below. Information regarding the determination of Mr. Smith’s compensation can be found in the “Compensation Discussion and Analysis” and “Executive Compensation Tables” below.

Fiscal 2023 Board compensation

The Compensation Committee engaged Compensia to assist in evaluating the competitiveness of our director compensation program for the purpose of determining non-employee director compensation for fiscal 2023. As part of its process, the Compensation Committee considered an overview of the corporate governance environment, as well as recent trends and developments relating to director compensation. The Compensation Committee also specifically considered the amounts payable under and the various components of our director compensation program, the aggregate director compensation cost, in comparison to the boards of directors of the same group of peer companies that the Compensation Committee used in determining executive compensation, and the fact that changes were made to director compensation the prior year. After considering those factors and based on the recommendation of the Compensation Committee, the Board of Directors determined not to make any changes to director compensation except to increase the Board or committee meeting threshold from ten to 12 meetings per fiscal year before requiring payment of additional meeting fees.

Cash compensation

Our cash compensation program for our non-employee directors for fiscal 2023 was as follows:

Under this program, our non-employee directors are not entitled to receive meeting attendance fees unless the Board, or any standing Board committee, is required to hold an unusually high number of meetings. In the event that the Board or a standing Board committee holds more than 12 meetings in a fiscal year, each non-employee director (as applicable) will be entitled to receive an additional $1,500 per meeting for the Chair, or an additional $1,000 per meeting for other members. In the event that the Board, or a standing Board committee, creates a special committee or subcommittee that holds more than three meetings in a fiscal year, each non-employee director serving on that committee or subcommittee will be entitled to receive an additional $1,000 per meeting. Our non-employee directors are also reimbursed for reasonable out-of-pocket expenses incurred in connection with attendance at Board and committee meetings.

The retainer fees set forth above are paid in quarterly installments. Meeting attendance fees, when applicable, generally are paid promptly following the end of the fiscal year.

2024 Proxy Statement		29

Equity compensation

Our equity compensation program for our non-employee directors and Dr. Nettles for fiscal 2023 was as follows:

In order to control for possible volatility in our stock price on any one particular trading day, the actual number of shares underlying restricted stock unit (“RSU”) awards granted to directors is determined based on the average closing price of Ciena’s common stock over the 30-day period immediately prior to the date of grant. Initial equity awards are made in connection with initial election or appointment to the Board of Directors, with the target delivered value prorated for the fiscal year based on the date of election or appointment. Initial equity awards vest on or about the one-year anniversary of the grant date. Annual equity awards are made on the date of each Annual Meeting and vest on or about the one-year anniversary of the grant date. Vesting of the RSU awards is subject to acceleration upon the director’s death, disability, retirement, or upon or in connection with a change in control of Ciena. Delivery of the shares upon vesting is subject to any applicable instruction provided by the director under the Deferred Compensation Plan described below.

Director compensation limits

Our 2017 Omnibus Incentive Plan (the “2017 Plan”) imposes a $500,000 limit on the compensation that can be awarded to a non-employee director in any given fiscal year, including the sum of (i) cash compensation and (ii) the grant date fair value of equity compensation under the 2017 Plan. This limitation, however, does not apply to the extent a non-employee director has been or becomes an employee of Ciena during such fiscal year. In addition, the Board retains discretion to provide further exceptions for one or more individual non-employee directors in extraordinary circumstances, such as service on a special transaction or litigation committee of the Board, provided that the director that is the subject of such exception may not participate in any decision with respect thereto.

Director compensation table

The following table and the accompanying footnotes describe the “total compensation” earned by our non-employee directors and Dr. Nettles during fiscal 2023:

Fiscal 2023 Director Compensation Table

30		2024 Proxy Statement

Outstanding equity awards for directors at fiscal year-end

The following table sets forth, on an aggregate basis, information related to the outstanding unvested RSU awards held by each of our non-employee directors and Dr. Nettles as of the end of fiscal 2023.

Outstanding Equity Awards at Fiscal Year-End

Deferral of director compensation

We maintain the Ciena Corporation Deferred Compensation Plan (the “Deferred Compensation Plan”), which allows our U.S.-based directors (as well as certain U.S.-based senior management employees) to defer elements of their annual compensation. Directors may defer up to 100% of their annual cash retainer and annual equity compensation.

Generally, deferral elections may only be made for awards to be granted in a subsequent calendar year. Directors can elect the amount deferred, the deferral period, and the form of distribution of their compensation. If a director elects to defer any portion of an RSU award, upon the vesting of that award, we credit a stock account with the amount deferred. All such accounts are distributed in shares of Ciena common stock. Distributions may be made in a lump sum or installments, as designated by the participating director, subject to early distribution of vested awards in a lump sum in the event of the participant’s death or termination of service, a change in control of Ciena or termination of the plan.

2024 Proxy Statement		31

Proposal No. 2

Amendment to Ciena’s 2017 Omnibus Incentive Plan

Overview

We are requesting that our stockholders vote in favor of the proposed amendment to our 2017 Omnibus Incentive Plan, which we sometimes refer to in this proposal as the “2017 Plan.” On December 5, 2023, the Board of Directors approved an amendment to the 2017 Plan (i) to increase, by 10.1 million shares, the number of shares of Ciena common stock available for issuance under the 2017 Plan, subject to stockholder approval at the Annual Meeting, and (ii) to increase the recoupment period for misconduct relating to accounting restatements from 12 months to three years. A copy of the proposed amendment to the 2017 Plan is attached as Annex A to this proxy statement.

Our 2017 Plan is the only equity incentive compensation plan under which we currently grant equity incentive awards to directors, officers and employees. We have not sought stockholder approval for an increase in available shares since our 2020 Annual Meeting, nearly four years ago.

A key part of our People Strategy in recent years has been advancing our goals of (i) promoting a strong alignment of interest between our stockholders and employees and (ii) offering compelling compensation and benefits that make Ciena an employer of choice in the talent markets in which we compete. To that end, we have significantly expanded the population of employees eligible for and receiving equity incentive awards, particularly within technology roles in engineering and sales, and have grown the number of employees receiving equity awards from approximately 21% in fiscal 2020 to approximately 50% in fiscal 2024. We believe that this approach advances our business and the interests of our stockholders and we intend to continue to invest in our employees through equity compensation.

Why you should vote for the 2017 Plan Amendment

We believe that the 2017 Plan is important to our continued growth and success. The purpose of the 2017 Plan is to attract, motivate and retain highly qualified officers, directors, key employees and other key individuals. We believe that providing these individuals an opportunity to acquire a direct proprietary interest in the operations and future success of Ciena will motivate them to serve Ciena and to expend maximum effort to improve our business and results of operations. We believe that equity awards under the 2017 Plan are a valuable incentive to participants and benefit stockholders by aligning more closely the interests of participants in the 2017 Plan with those of our stockholders.

We believe that our usage of the 2017 Plan illustrates our commitment to best practices in equity compensation, prudent use of limited resources and the promotion of a strong alignment with stockholder interests, as exhibited by our awards and plan design. We ask stockholders to vote for the proposed amendment to the 2017 Plan for the following reasons:

The Compensation Committee carefully monitors our total dilution, burn rate and equity expense to ensure that we maximize stockholder value and exercise prudence by granting only such number of equity awards as we deem necessary to attract, reward and retain our employees. Burn rate is defined as the number of shares subject to equity awards issued in a fiscal year as a percentage of Ciena’s weighted average shares outstanding. Ciena’s three-year average burn rate of 1.76%, or 3.53% taking into account adjusted full value shares, is considerably lower than the 4.03% burn rate benchmark used by Institutional Shareholder Services (“ISS”) to assess companies in our industry.

Our practice is to repurchase and retire shares of common stock to satisfy employee tax withholding obligations due upon vesting of stock unit awards, instead of satisfying these obligations through directed open market sales. During fiscal 2023, we repurchased approximately $38.5 million in shares of common stock in satisfaction of such tax withholding obligations. In addition, since December 2017, we have maintained stock repurchase programs that further mitigate dilution to our stockholders from our equity grants under the 2017 Plan. Under our current stock repurchase program, which was announced in December 2021, we are authorized to repurchase up to $1.0 billion of our common stock. From the commencement of that program through the end of fiscal 2023, we repurchased over $750 million, or approximately 14.1 million shares of our common stock. These practices have resulted in a significant reduction in the dilutive effect of our equity awards.

32		2024 Proxy Statement

Overhang is defined as stock awards and option awards outstanding, plus shares remaining available for grant under the 2017 Plan. The Compensation Committee carefully monitors our equity overhang and considers Ciena’s overhang as compared to its peers. In addition, Ciena’s equity overhang at December 22, 2023 includes only approximately five thousand shares underlying stock options, primarily assumed via acquisition, as Ciena has not granted stock options broadly in many years. The weighted average remaining term of our outstanding stock options is 0.3 years. None of our stock options outstanding at December 22, 2023 were “out of the money” (i.e., having an exercise price above the current trading price of our common stock).

In recent years, our Compensation Committee has allocated a significant percentage (60% for our CEO and approximately 50% for our other executive officers) of its targeted equity compensation to our executive team in the form of performance-based equity, both PSUs and MSUs, reflecting our commitment to using equity awards as a significant part of our approach to performance-based compensation.

As discussed in the “Compensation Discussion and Analysis” section of this proxy statement, equity incentive awards are a critically important component of our compensation program. As part of our efforts to support our workforce, in recent years we have taken steps to deliver equity awards deeper into the organization and to more employees, particularly in engineering and sales functions. Even with this change, which we intend to continue going forward, we have still maintained reasonable burn rate and overhang metrics. Our Compensation Committee believes that our ability to grant equity incentive awards to employees is an important factor in our ability to attract, retain and motivate key employees. Our Compensation Committee believes that equity compensation provides a strong incentive for our employees to work to grow the business and build stockholder value.

In recent years, as part of our ongoing strategy to attract and retain talented personnel at all levels, we began granting annual equity awards deeper within the organization and to more employees, particularly in engineering and sales functions. As a result of this expansion, which was driven in part by the intense competitive dynamics in the labor markets in which we compete, the overall target delivered value of annual equity awards to non-executive employees increased by approximately 247% between fiscal 2020 and fiscal 2024, and the number of non-executive employees who received annual equity awards increased from approximately 21% in fiscal 2020 to approximately 50% in fiscal 2024. We expect to continue this practice going forward.

Our Compensation Committee believes that equity-based awards are a particularly effective compensation vehicle, as compared to cash compensation, for a growth-oriented company like Ciena, because such awards align employee and stockholder interests while having a smaller impact on current income and cash flow. Limited shares remaining available for issuance under the 2017 Plan could restrict our ability to grant equity awards that align with our compensation philosophy and negatively impact our ability to offer competitive equity compensation. We believe that our inability to award meaningful equity compensation could result in difficulty attracting, retaining and motivating our employees.

The 2017 Plan includes a mechanism that allows Ciena to recoup or “claw back” certain equity compensation in situations requiring forfeiture under the Sarbanes-Oxley Act of 2002 and circumstances where the grantee engaged in certain misconduct. The proposed amendment to the 2017 Plan would increase the recoupment period for such situations from 12 months to three years. The 2017 Plan also includes a comprehensive clawback provision that subjects awards to mandatory repayment by the grantee in accordance with an award agreement, Ciena’s new Executive Compensation Clawback Policy or any other Ciena recoupment policy, or applicable law.

2024 Proxy Statement		33

The 2017 Plan includes several key features described below that are designed to protect our stockholders’ interests and that reflect Ciena’s commitment to best practices and effective management of equity compensation:

The 2017 Plan authorizes a fixed number of shares and requires stockholder approval to increase the maximum number of securities that may be issued thereunder. The 2017 Plan does not contain an evergreen provision or other features which periodically add new shares for grant thereunder.

The 2017 Plan contains limitations on the maximum number of shares that may be awarded to, and the maximum amount that may be earned by, any individual under the 2017 Plan in any 12-month period, as well as a limitation on the compensation that may be awarded to a non-employee director in any fiscal year.

Under the 2017 Plan, every share underlying RSUs, MSUs, PSUs, and other full value awards is subject to a fungible share ratio that reduces the number of shares remaining available for issuance under the plan by a factor greater than one. The fungible share ratio is 1.31 shares for each full value share awarded.

In general, when awards granted under the 2017 Plan are forfeited, expire or are canceled without having been fully exercised, or are settled in cash, the shares reserved for those awards will be returned to the share reserve and will be available for future awards. However, shares of common stock that are delivered to the grantee or withheld by Ciena as payment of the exercise price in connection with the exercise of a stock option or payment of a tax withholding obligation in connection with any award, or are purchased by Ciena with proceeds from option exercises, are not returned to the share reserve.

The 2017 Plan provides that awards granted under the plan may not vest in full in less than one year from the date of grant. This minimum vesting period is subject to exception solely where vesting has occurred due to (i) a grantee’s death or disability, or (ii) a change in control of Ciena. Only a limited number of shares, equal to five percent (5%) of the shares authorized under the 2017 Plan, may be granted with (or subsequently modified to contain) terms that do not meet the minimum vesting period restrictions above. In administering the 2017 Plan, our Compensation Committee has determined and agreed to adhere to an interpretation of this provision such that ratable vesting within one year is not permissible under this minimum vesting provision except as set forth in (i) and (ii) above. The additional shares authorized by this amendment will be subject to these same minimum vesting requirements.

All stock options and stock appreciation rights will have an exercise price equal to or greater than the fair market value of our common stock on the date the stock option or stock appreciation right is granted.

Under the 2017 Plan, repricing of stock options and SARs (including reduction in the exercise price of stock options or replacement of an award with cash or another award type) is prohibited without stockholder approval.

The 2017 Plan has a definition of change in control (referred to as a “corporate transaction” in the 2017 Plan) that we believe would not be considered a liberal change in control vesting risk by ISS.

Under the 2017 Plan, while Ciena may grant restricted stock awards that include the right to dividends and RSUs, MSUs and PSUs that include dividend equivalent rights, no dividends or dividend equivalent rights will become payable until the corresponding restricted stock award, RSU, MSU or PSU vests.

34		2024 Proxy Statement

Amendments that materially increase the benefits under the 2017 Plan (including changing the vesting restrictions described above), that materially increase the aggregate number of shares that may be issued under the plan, or that materially modify the requirements for participation in the plan are prohibited without stockholder approval.

Equity awards outstanding and available

The table below includes information as of December 22, 2023 with respect to our (i) equity incentive awards outstanding and (ii) shares remaining available for grant under our 2017 Plan:

Equity Awards Outstanding and Available Summary

As of December 22, 2023, the market value of a share of our common stock was $44.17, which was the closing price of our common stock on that date on the NYSE.

The amendment to the 2017 Plan will not be effective unless and until approved by stockholders. Participation and the types of awards under the 2017 Plan are subject to the discretion of the Compensation Committee and, as a result, the benefits or amounts that will be received by any participant or groups of participants if the amendment to the 2017 Plan is approved are not currently determinable. On the record date, there were ten executive officers, eight non-employee directors and approximately 8,650 employees who were eligible to participate in the 2017 Plan.

Summary description of the 2017 Plan

A description of the provisions of the 2017 Plan is set forth below. This summary is subject to the complete provisions of the 2017 Plan, a copy of which is incorporated by reference as an exhibit to Ciena’s 2023 Annual Report. We encourage you to read the 2017 Plan for additional information.

Administration. The 2017 Plan is administered by the Compensation Committee of the Board of Directors. The members of the Compensation Committee qualify as “non-employee directors” for purposes of Rule 16b-3 of the Exchange Act and comply with the independence requirements of the NYSE. Subject to the terms of the 2017 Plan, the Compensation Committee may select grantees to receive awards, determine the types of awards and terms and conditions of awards, prescribe the form of each award agreement evidencing an award, amend, modify or supplement the terms of any outstanding award, and interpret provisions of the 2017 Plan. Members of the Compensation Committee serve at the pleasure of the Board of Directors. The Board of Directors may also appoint one or more separate committees, composed of one or more directors who need not satisfy the independence requirements described above, that may administer the 2017 Plan with respect to grantees, provided such grantees are not Ciena executive officers or directors. The Compensation Committee may delegate its authority under the Plan to the extent permitted by applicable law.

Common Stock Reserved for Issuance under the Plan. If stockholders approve this proposal and the 2017 Plan is amended, the shares remaining available for issuance under the 2017 Plan will increase by 10.1 million shares. The number of shares available under the 2017 Plan will also be increased from time to time by: (i) the number of shares subject to outstanding awards granted under our 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. The common stock issued or to be issued under the 2017 Plan consists of authorized but unissued shares or, to the extent permitted by applicable law, issued shares that have been reacquired by Ciena.

2024 Proxy Statement		35

The number of shares of common stock available for issuance under the 2017 Plan will not be increased by any shares tendered or awards surrendered in connection with the purchase of shares of common stock upon exercise of a stock option, any shares of common stock deducted or forfeited from an award in connection with Ciena’s tax withholding obligations, or any shares of common stock purchased by Ciena with proceeds from option exercises.

Eligibility. Awards may be made under the 2017 Plan to officers, employees, directors, advisors and consultants of Ciena or its affiliates, and any other individual whose participation in the plan is determined to be in the best interests of Ciena by the Compensation Committee. On the record date, there were ten executive officers, eight non-employee directors and approximately 8,650 employees who were eligible to participate in the 2017 Plan.

Effective Date; Term; Amendment or Termination of the Plan. The effective date of the 2017 Plan is March 23, 2017, and the 2017 Plan will terminate ten years after its effective date. The Board of Directors may terminate the 2017 Plan at any time and for any reason. The Board of Directors may also amend the 2017 Plan, provided that amendments will be submitted for stockholder approval to the extent required by the Internal Revenue Code or other applicable laws, rules or regulations. In addition, amendments that materially increase the benefits under the plan (including changing the vesting restrictions described above), that materially increase the aggregate number of shares that may be issued under the plan, or that materially modify the requirements for participation in the plan must be submitted for stockholder approval.

Stock Options. The 2017 Plan permits the granting of options to purchase shares of our common stock intended to qualify as incentive stock options under the Internal Revenue Code as well as stock options that do not qualify as incentive stock options.

The exercise price of a stock option may not be less than 100% of the fair market value of our common stock on the date of grant. The fair market value is generally determined as the closing price of the common stock on the date of grant. In the case of 10% stockholders who receive incentive stock options, the exercise price may not be less than 110% of the fair market value of our common stock on the date of grant. An exception to these requirements is made for stock options that we grant in substitution for options held by employees of companies that we acquire. In such a case the exercise price is adjusted to preserve the economic value of the employee’s stock option from his or her former employer.

The term of each stock option is fixed by the Compensation Committee and may not exceed ten years from the date of grant. If the grantee is a 10% stockholder, the term of an option intended to be an incentive stock option may not exceed five years from the date of grant. Subject to the minimum vesting periods described above, the Compensation Committee determines at what time or times each option may be exercised and the period of time, if any, after retirement, death, disability or termination of employment during which options may be exercised. Options may be made exercisable in installments. The ability to exercise options may be accelerated by the Compensation Committee, subject to compliance with the 2017 Plan.

In general, a grantee may pay the exercise price of a stock option by cash, certified check, or other cash equivalent or, with Ciena’s consent, by tendering shares of our common stock or by means of a broker-assisted cashless exercise.

No amendment or modification may be made to an outstanding stock option or stock appreciation right if that amendment or modification would be treated as a repricing under the rules of the stock exchange on which the shares of our common stock are listed (currently the NYSE), including replacement with cash or another award type, without the approval of Ciena’s stockholders.

Stock options and stock appreciation rights granted under the 2017 Plan may not be sold, transferred, pledged or assigned, other than by will or under applicable laws of descent and distribution. However, the 2017 Plan provides flexibility should we determine to permit limited transfers of non-qualified stock options for the benefit of immediate family members of grantees to help with estate planning concerns.

Other Awards. The Compensation Committee may also award:

36		2024 Proxy Statement

Effect of Certain Corporate Transactions. Certain change in control transactions, such as a sale of Ciena, may cause awards granted under the 2017 Plan to vest, unless the awards are continued or substituted for in connection with the change in control.

Adjustments for Stock Splits, Stock Dividends and Similar Events. The Compensation Committee will make appropriate adjustments in outstanding awards and the number of shares available for issuance under the 2017 Plan, including the individual limitations on awards, to reflect stock splits and other similar events.

Individual Limits. The maximum number of shares of common stock subject to stock options or stock appreciation rights that can be awarded under the 2017 Plan to any person, other than a non-employee director, is one million per year. The maximum number of shares of common stock that can be awarded under the 2017 Plan to any person, other than a non-employee director, other than pursuant to options or stock appreciation right, is one million per year. The maximum amount that may be earned as an annual incentive award or other cash award in any fiscal year by any one person is $5 million and the maximum amount that may be earned as a performance award or other cash award in respect of a performance period greater than 12 months by any one person is $25 million.

Limits on director compensation

Under the 2017 Plan, the maximum amount of compensation that can be awarded to a director in any given fiscal year is $500,000 in the aggregate, including (i) cash compensation and (ii) the grant date fair value of equity compensation under the 2017 Plan. This limitation, however, does not apply to the extent a director has been or becomes an employee of Ciena during such fiscal year and certain limited exceptions in extraordinary circumstances.

Plan benefits

The amounts that may be received under the 2017 Plan in the future are not determinable, as the amendment to the 2017 Plan will not be effective unless and until approved by stockholders, and such amounts will depend on actions of the Compensation Committee, the performance of Ciena and the value of our common stock. For details on grants of RSUs, MSUs and PSUs made to our NEOs under the 2017 Plan in fiscal 2023, see the table below entitled “Fiscal 2023 Grants of Plan-Based Awards,” and for more details on grants of RSUs made to our non-employee directors in fiscal 2023, see the table above entitled “Fiscal 2023 Director Compensation Table.”

Federal income tax consequences

Incentive Stock Options. The grant of an option will not be a taxable event for the grantee or for Ciena. A grantee will not recognize taxable income upon exercise of an incentive stock option (except that the alternative minimum tax may apply), and any gain realized upon a disposition of our common stock received pursuant to the exercise of an incentive stock option will be taxed as long-term capital gain if the grantee holds the shares of common stock for at least two years after the date of grant and for one year after the date of exercise (the “holding period requirement”). Ciena will not be entitled to any business expense deduction with respect to the exercise of an incentive stock option, except as discussed below.

For the exercise of an option to qualify for the foregoing tax treatment, the grantee generally must be our employee or an employee of one of our subsidiaries from the date the option is granted through a date within three months before the date of exercise of the option.

If all of the foregoing requirements are met except the holding period requirement mentioned above, the grantee will recognize ordinary income upon the disposition of the common stock in an amount generally equal to the excess of the fair market value of the common stock at the time the option was exercised over the option exercise price (but not in excess of the gain realized on the sale). The balance of the realized gain, if any, will be capital gain.

Non-Qualified Stock Options. The grant of an option will not be a taxable event for the grantee or Ciena. Upon exercising a non-qualified stock option, a grantee will recognize ordinary income in an amount equal to the difference between the exercise price and the fair market value of the common stock on the date of exercise. Upon a subsequent sale or exchange of shares acquired pursuant to the exercise of a non-qualified stock option, the grantee will have taxable capital gain or loss, measured by the difference between the amount realized on the disposition and the tax basis of the shares of common stock (generally, the amount paid for the shares plus the amount treated as ordinary income at the time the option was exercised).

A grantee who has transferred a non-qualified stock option to a family member by gift will realize taxable income at the time the non-qualified stock option is exercised by the family member. The grantee will be subject to withholding of income and employment

2024 Proxy Statement		37

taxes at that time. The family member’s tax basis in the shares of common stock will be the fair market value of the shares of common stock on the date the option is exercised. The transfer of vested non-qualified stock options will be treated as a completed gift for gift and estate tax purposes. Once the gift is completed, neither the transferred options nor the shares acquired on exercise of the transferred options will be includable in the grantee’s estate for estate tax purposes.

In the event a grantee transfers a non-qualified stock option to his or her ex-spouse incident to the grantee’s divorce, neither the grantee nor the ex-spouse will recognize any taxable income at the time of the transfer. In general, a transfer is made “incident to divorce” if the transfer occurs within one year after the marriage ends or if it is related to the end of the marriage (for example, if the transfer is made pursuant to a divorce order or settlement agreement). Upon the subsequent exercise of such option by the ex-spouse, the ex-spouse will recognize taxable income in an amount equal to the difference between the exercise price and the fair market value of the shares of common stock at the time of exercise. Any distribution to the ex-spouse as a result of the exercise of the option will be subject to employment and income tax withholding at this time.

Restricted Stock. A grantee who is awarded restricted stock will not recognize any taxable income for federal income tax purposes in the year of the award, provided that the shares of common stock are subject to restrictions (that is, the restricted stock is nontransferable and subject to a substantial risk of forfeiture). However, the grantee may elect under Section 83(b) of the Internal Revenue Code to recognize compensation income in the year of the award in an amount equal to the fair market value of our common stock on the date of the award (less the purchase price, if any), determined without regard to the restrictions. If the grantee does not make such a Section 83(b) election, the fair market value of our common stock on the date the restrictions lapse (less the purchase price, if any) will be treated as compensation income to the grantee and will be taxable in the year the restrictions lapse and dividends paid while the common stock is subject to restrictions will be subject to withholding taxes.

Restricted Stock Units. There are no immediate tax consequences of receiving an award of RSUs under the 2017 Plan. A grantee who is awarded RSUs will be required to recognize ordinary income in an amount equal to the fair market value of the shares of our common stock issued to such grantee at the end of the restriction period or, if later, the payment date.

Stock Appreciation Rights. There are no immediate tax consequences of receiving an award of stock appreciation rights under the 2017 Plan. Upon exercising a stock appreciation right, a grantee will recognize ordinary income in an amount equal to the difference between the exercise price and the fair market value of our common stock on the date of exercise.

Performance and Cash Incentive Awards. The award of a performance or cash incentive award will have no federal income tax consequences for Ciena or for the grantee. The payment of the award is taxable to a grantee as ordinary income.

Unrestricted Common Stock. Participants who are awarded unrestricted common stock will be required to recognize ordinary income in an amount equal to the fair market value of the shares of our common stock on the date of the award, reduced by the amount, if any, paid for such shares.

Deductibility. For each of the foregoing award types, Ciena will generally be allowed a business expense deduction to the extent the grantee recognizes ordinary income, subject to the limits of Section 162(m) of the Internal Revenue Code and to certain reporting requirements.

Section 280G. Certain payments made to employees and other service providers in connection with a change in control may constitute “parachute payments” subject to tax penalties imposed on both Ciena and the recipient under Sections 280G and 4999 of the Internal Revenue Code. In general, when the value of parachute payments equals or exceeds three times the employee’s “base amount,” the employee is subject to a 20% nondeductible excise tax on the excess over the base amount and Ciena is denied a tax deduction for the payments. The base amount is generally defined as the employee’s average compensation for the five calendar years prior to the date of the change in control. The value of accelerated vesting of equity awards in connection with a change in control can constitute a parachute payment. The 2017 Plan contains a modified form of a “safe harbor cap,” which limits the amount of potential parachute payments that a recipient may receive to no more than 299% of the recipient’s base amount, but only if such cutback results in larger after-tax payments to the recipient.

Section 409A. Ciena intends for awards granted under the 2017 Plan to comply with Section 409A of the Internal Revenue Code. To the extent a grantee would be subject to the additional 20% excise tax imposed on certain nonqualified deferred compensation plans as a result of a provision of an award under the plan, the provision will be deemed amended to the minimum extent necessary to avoid application of the 20% excise tax.

38		2024 Proxy Statement

Proposal No. 3

Amendment to Ciena’s Amended and Restated Certificate of Incorporation to provide for officer exculpation

Overview

Our Board of Directors has unanimously adopted, and recommends that stockholders approve, an amendment to Ciena’s Amended and Restated Certificate of Incorporation (the “Charter”) to limit the personal liability of certain senior officers of Ciena as permitted by recent amendments to the Delaware General Corporation Law (the “Amendment”), as discussed further below.

Background

Effective August 1, 2022, the State of Delaware, which is Ciena’s state of incorporation, adopted amendments to Section 102(b)(7) of the General Corporation Law of the State of Delaware (the “DGCL”) to allow Delaware corporations to exculpate certain of their officers from direct claims for a breach of the duty of care. The DGCL currently provides for exculpation of officers for direct claims, including class actions, and does not provide exculpation for breaches of the duty of loyalty, acts or omissions not in good faith or that involve intentional misconduct or a knowing violation of law, any transaction in which the officer derived an improper personal benefit, or any action brought by or in the right of the corporation. In order to extend the protections of the recently amended Section 102(b)(7) of the DGCL to its officers, a Delaware corporation must affirmatively amend its certificate of incorporation to include such a provision, as the protections do not apply automatically. Currently, our Charter provides for exculpation of directors from direct claims for a breach of the duty of care to the fullest extent permitted by the DGCL. The Amendment would provide both directors and certain officers with exculpation rights to the fullest extent permitted by the DGCL.

Rationale

We believe that amending and restating our Charter to add liability protection for officers is necessary in order to (i) continue to attract and retain experienced and qualified executives, as similar officer exculpation provisions have been, and are likely to be, adopted by our peers and others with whom we compete for executive talent, (ii) reduce their personal legal exposure; and (iii) help curb corporate litigation and associated insurance costs. We believe all of these are in the best interest of our stockholders. Furthermore, the Amendment would more generally align the protections available to our officers with those protections currently available to our directors. Accordingly, the Board believes that the proposal to extend exculpation to our officers is fair and in the best interests of Ciena and its stockholders.

Officers often must make time-sensitive decisions on matters of significant importance to various stakeholders, which gives rise to the risk of legal action that may be based on hindsight. The Amendment would enhance the ability of our officers to make decisions that will maximize Ciena’s value and empower our officers to exercise their business judgment in furtherance of stockholder interests by decreasing concerns about personal risk of legal action while also minimizing the potential distraction posed by frivolous lawsuits and costs that are often borne by us through indemnification or higher insurance premiums. In contrast, failure to adopt the Amendment could impact recruitment and retention of qualified officer candidates, as they may conclude that potential exposure to liability exceeds the benefit of serving as an officer of Ciena.

Section 102(b)(7) of the DGCL provides that only certain officers may be entitled to exculpation; namely: (i) the corporation’s president, chief executive officer, chief operating officer, chief financial officer, chief legal officer, controller, treasurer or chief accounting officer; (ii) an individual identified in the corporation’s public filings with the SEC as an NEO; and (iii) an individual who, by written agreement with the corporation, has consented to be identified as an officer for purposes of accepting service of process (collectively, the “covered officers”).

The Amendment would permit the exculpation of the covered officers for personal liability for monetary damages in connection with direct claims brought by stockholders for breach of fiduciary duty of care, including class actions, but would not exculpate such officers’ personal liability for monetary damages for breach of fiduciary duty of care claims brought by Ciena itself or for derivative claims brought by stockholders in the name of Ciena. Accordingly, Ciena and our stockholders would still have the ability to hold officers accountable for wrongdoing. In addition, as is currently the case for directors under our Charter, the Amendment would not limit the liability of the covered officers for: (i) a breach of the duty of loyalty; (ii) acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law; or (iii) any transaction from which the officer derived an improper personal benefit.

In determining the advisability of the Amendment, the Board of Directors considered the narrow class and type of claims from which the covered officers would be exculpated from liability pursuant to Section 102(b)(7) of the DGCL, the limited number of our

2024 Proxy Statement		39

officers to which the protections would apply, and the benefits the Board believes would accrue to Ciena and its stockholders by extending exculpation protection to its senior officers in addition to its directors. Given the potential benefits anticipated to accrue to Ciena, including the associated benefits to our stockholders, and the limited types of claims that would be exculpated, the Board recommends that the stockholders approve the Amendment.

Effectiveness of Amendment

If the Amendment, in the form attached hereto as Annex B, is approved by the stockholders at the Annual Meeting, it will become effective upon the filing with the Secretary of State of the State of Delaware of a Certificate of Amendment to the Charter, which we would expect to file following the Annual Meeting. Other than the replacement of the existing Article EIGHTH with the proposed Article EIGHTH , the remainder of the Charter will remain unchanged after effectiveness of the Amendment. Even if our stockholders approve the Amendment, our Board retains discretion under Delaware law not to implement it. If the Amendment is not approved by our stockholders, the Charter will remain unchanged.

40		2024 Proxy Statement

Proposal No. 4

Ratification of appointment of independent registered public accounting firm

The Audit Committee of the Board of Directors has appointed PricewaterhouseCoopers LLP (“PwC”) as our independent registered public accounting firm to audit Ciena’s consolidated financial statements for fiscal 2024, and is asking stockholders to ratify this appointment at the Annual Meeting.

PwC has audited our consolidated financial statements annually since Ciena’s incorporation in 1992. A representative of PwC is expected to attend this year’s Annual Meeting. He or she will have the opportunity to make a statement, if desired, and will be available to respond to appropriate questions. In making its recommendation to the Board of Directors to select PwC as Ciena’s independent registered public accounting firm for fiscal 2024, the Audit Committee considered the quality of PwC’s services, whether the non-audit services provided by PwC are compatible with maintaining the independence of PwC as well as the potential impact to Ciena of a change to its independent registered public accounting firm, and determined that retention of PwC is in the best interests of Ciena and its stockholders. Information regarding fees billed by PwC for our 2022 and 2023 fiscal years is set forth under “Relationship with Independent Registered Public Accounting Firm” below.

Our bylaws do not require that stockholders ratify the appointment of our independent registered public accounting firm. We are seeking ratification because we believe it is a matter of good corporate governance. In the event that stockholders fail to ratify the appointment, the Audit Committee will reconsider whether to retain PwC, but may ultimately determine to retain PwC as our independent registered public accounting firm. Even if the appointment is ratified, the Audit Committee, in its sole discretion, may direct the appointment of a different independent registered public accounting firm at any time during the year if it determines that it is advisable to do so.

2024 Proxy Statement		41

Relationship with independent registered public accounting firm

The following table shows the fees that PwC billed to Ciena for professional services rendered for fiscal 2022 and 2023.

Audit Fees. This category of the table above includes fees for the integrated audit of our annual financial statements, review of financial statements included in our quarterly reports on Form 10-Q, and services that are normally provided by PwC in connection with statutory and regulatory filings or engagements, and services that generally only PwC as the independent registered public accounting firm can provide, such as services for comfort letters and consents. The preparation of Ciena’s audited financial statements includes compliance with Section 404 of the Sarbanes-Oxley Act of 2002 and the preparation by PwC of a report expressing its opinion regarding the effectiveness of our internal control over financial reporting. Audit fees reflect PwC’s integrated audits of financial statements for Ciena.

Audit-Related Fees. This category of the table above includes fees for assurance and related services that are reasonably related to the performance of the audit or review of our financial statements and are not included above under “Audit Fees.”

Tax Fees. This category of the table above includes fees for tax compliance, tax advice, tax planning, and other general tax consulting fees. Fees for fiscal 2022 and 2023 primarily include fees related to a study related to research and development tax credits in relevant geographies. Fees for fiscal 2023 also include tax services related to assistance with identification and computation of Section 174 expenditures.

All Other Fees. This category of the table above includes fees for services provided by PwC that are not included in the other fee categories reported above. All other fees for fiscal 2022 relate to a pre-implementation assessment for certain anticipated IT system implementations. All other fees for fiscal 2023 relate to subscription fees paid for access to online accounting disclosure research software.

Pre-approval of services

The Audit Committee pre-approves all services provided by our independent registered public accounting firm, including audit services (such as statutory audit engagements as required under local law of foreign jurisdictions) and non-audit services. For audit services with respect to Ciena, each year our independent registered public accounting firm provides the Audit Committee with an engagement letter outlining the scope of the audit services proposed to be performed during the year, which must be accepted by the Audit Committee before the audit commences. Our independent registered public accounting firm also submits an audit services fee proposal, which must be approved by the Audit Committee before the audit commences.

Each year, management also submits to the Audit Committee certain non-audit services for which it recommends the independent registered public accounting firm be engaged to provide, and an estimate of the fees to be paid for each. Management and the independent registered public accounting firm must each confirm to the Audit Committee that the performance of the non-audit services on the list would not compromise the independence of our registered public accounting firm and would be permissible under applicable legal requirements. The Audit Committee must approve both the list of non-audit services and the budget for each such service before commencement of the work. Our management and our independent registered public accounting firm report to the Audit Committee at each of its regular meetings as to the non-audit services actually provided by the independent registered public accounting firm and the approximate fees incurred by Ciena for those services.

To ensure prompt handling of unexpected matters, the Audit Committee has authorized its Chair to amend or modify the list of approved permissible non-audit services and fees. If the Chair exercises this delegation of authority, she reports the action taken to the Audit Committee at its next regular meeting.

In compliance with the Audit Committee’s internal policy and auditor independence rules of the SEC, all audit and permissible non-audit services provided by PwC to Ciena for the fiscal years 2022 and 2023 were pre-approved by the Audit Committee.

42		2024 Proxy Statement

Ownership of securities

The following table sets forth, as of January 22, 2024, the beneficial ownership of Ciena’s common stock for the following persons:

Certain information in the table concerning beneficial owners other than our directors and executive officers is based on information contained in filings made by such beneficial owners with the SEC.

Under SEC rules, beneficial ownership of a class of capital stock includes any shares of such class as to which a person, directly or indirectly, has or shares voting power or investment power and also any shares as to which a person has the right to acquire such voting or investment power within 60 days through the exercise or conversion of any stock option, stock award, or other similar right. If two or more persons share voting power or investment power with respect to specific securities, each such person is deemed to be the beneficial owner of such securities. In computing the percentage ownership of any person, the amount of shares outstanding is deemed to include the amount of shares beneficially owned by such person (and only such person) by reason of such acquisition rights. As a result, the percentage of outstanding shares held by any person in the table below does not necessarily reflect the person’s actual voting power. As of January 22, 2024, there were 145,008,717 shares of Ciena common stock outstanding.