InterDigital, Inc.

NOTICE OF ANNUAL MEETING OF SHAREHOLDERS

To Be Held June 5, 2024

TO THE SHAREHOLDERS OF INTERDIGITAL, INC.:

We are pleased to invite you to attend our 2024 annual meeting of shareholders, which will be held on Wednesday, June 5, 2024, at 2:00 PM Eastern Time. This year’s annual meeting will be held as a virtual meeting. You will be able to attend and participate in the annual meeting online via a live webcast by visiting www.virtualshareholdermeeting.com/IDCC2024. In addition to voting by submitting your proxy prior to the annual meeting, you also will be able to vote your shares electronically during the annual meeting. Further details regarding the virtual meeting are included in the accompanying proxy statement. At the annual meeting, the holders of our outstanding common stock will act on the following matters:

We are pleased to be using the Securities and Exchange Commission rules that allow companies to furnish proxy materials to their shareholders primarily over the Internet. We believe that this process expedites shareholders’ receipt of the proxy materials, lowers the costs of the annual meeting and helps to conserve natural resources. We also believe that hosting a virtual meeting enables participation by more of our shareholders in our annual meeting while lowering the cost of conducting the meeting. Shareholders attending the virtual meeting will be afforded substantially the same rights and opportunities to participate as they would at an in-person meeting. On or about April 23, 2024, we began mailing our shareholders a Notice of Internet Availability of Proxy Materials (the “Notice”) containing instructions on how to access our 2024 proxy statement and 2023 annual report, and how to vote online. The Notice also includes instructions on how to request a paper copy of the proxy materials, including the notice of annual meeting, 2024 proxy statement, 2023 annual report and proxy card.

All holders of record of shares of our common stock (Nasdaq: IDCC) at the close of business on April 10, 2024 are entitled to vote at the annual meeting and at any postponements or adjournments of the annual meeting. Your vote is important. Regardless of whether you plan to attend the annual meeting, please cast your vote as instructed in the Notice as promptly as possible. Alternatively, if you wish to receive paper copies of your proxy materials, including the proxy card, please follow the instructions in the Notice. Once you receive paper copies of your proxy materials, please complete, sign, date and promptly return the proxy card in the postage-prepaid return envelope provided, or follow the instructions set forth on the proxy card to vote your shares over the Internet or by telephone. Your prompt response is necessary to ensure that your shares are represented at the annual meeting. Voting by Internet, telephone or mail will not affect your right to vote at the annual meeting if you decide to attend the virtual meeting through www.virtualshareholdermeeting.com/IDCC2024. If you are a shareholder who holds stock in a brokerage account (a “street name” holder), you will receive instructions from the holder of record, which you must follow in order for your shares to be voted. Certain of these institutions offer Internet and telephone voting.

IF YOU PLAN TO ATTEND THE ANNUAL MEETING:

The annual meeting will be held as a virtual meeting and begin promptly at 2:00 PM Eastern Time. In order to attend and participate in the annual meeting, you will need to visit www.virtualshareholdermeeting.com/IDCC2024 and follow the instructions that are included in the Notice, on your proxy card or in the voting instructions accompanying your proxy materials. You will also need the 16-digit control number provided therein. Online check-in will begin at 1:30 PM Eastern Time. Please allow sufficient time to complete the online check-in process.

April 23, 2024

Wilmington, Delaware

TABLE OF CONTENTS

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INTERDIGITAL, INC.

200 Bellevue Parkway, Suite 300

Wilmington, Delaware 19809-3727

PROXY STATEMENT

This proxy statement contains information relating to our annual meeting of shareholders to be held on Wednesday, June 5, 2024, at 2:00 PM Eastern Time, and at any postponements or adjournments thereof. This year’s annual meeting of shareholders will be held as a virtual meeting. Shareholders attending the virtual meeting will be afforded the same rights and opportunities to participate as they would at an in-person meeting. You will be able to attend and participate in the annual meeting online via a live webcast by visiting www.virtualshareholdermeeting.com/IDCC2024. In addition to voting by submitting your proxy prior to the annual meeting, you also will be able to vote your shares electronically during the annual meeting. Your proxy for the annual meeting is being solicited by our Board of Directors (the “Board”).

INTERNET AVAILABILITY OF PROXY MATERIALS

As permitted by Securities and Exchange Commission (“SEC”) rules, we are making this proxy statement and our annual report available to our shareholders primarily via the Internet, rather than mailing printed copies of these materials to each shareholder. We believe that this process will expedite shareholders’ receipt of the proxy materials, lower the costs of the annual meeting and help to conserve natural resources. On or about April 23, 2024, we began mailing to each shareholder (other than those who previously requested electronic delivery of all materials or previously elected to receive delivery of a paper copy of the proxy materials) a Notice of Internet Availability of Proxy Materials (the “Notice”) containing instructions on how to access and review the proxy materials, including our proxy statement and our annual report, on the Internet and how to access an electronic proxy card to vote on the Internet or by telephone. The Notice also contains instructions on how to receive a paper copy of the proxy materials. If you receive the Notice by mail, you will not receive a printed copy of the proxy materials unless you request one. If you receive the Notice by mail and would like to receive a printed copy of our proxy materials, please follow the instructions included in the Notice.

Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting of Shareholders

to be Held on June 5, 2024:

The Notice of Meeting and Proxy Statement and 2023 Annual Report are available at

http://ir.interdigital.com/FinancialDocs.

ABOUT THE ANNUAL MEETING AND VOTING

What is the purpose of the annual meeting?

At our annual meeting, shareholders will act upon the matters outlined in the Notice provided with this proxy statement, including the election of directors, the advisory resolution to approve executive compensation, the ratification of the appointment of our independent registered public accounting firm, and such other business as may properly come before the annual meeting.

Who may attend the annual meeting?

You are entitled to participate in the annual meeting only if you were a shareholder of record as of the close of business on April 10, 2024 or if you hold a valid proxy for the annual meeting. As noted above, this year’s annual meeting will be held as a virtual meeting that you may attend online via a live webcast by visiting

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www.virtualshareholdermeeting.com/IDCC2024. Shareholders attending the virtual meeting will be afforded the same rights and opportunities to participate as they would at an in-person meeting.

In order to attend and participate in the annual meeting, you will need to visit www.virtualshareholdermeeting.com/IDCC2024 and follow the instructions that are included in the Notice, on your proxy card or in the instructions accompanying your proxy materials. You will be required to complete an online check-in process, for which you will need the 16-digit control number provided on your Notice, your proxy card or the instructions accompanying your proxy materials. If you do not have your control number, you will not be able to join the annual meeting, vote at the annual meeting or ask questions. Online check-in will begin at 1:30 PM Eastern Time, and the annual meeting will begin promptly at 2:00 PM Eastern Time. Please allow sufficient time to complete the online check-in process.

Instructions on how to attend and participate via the Internet, including how to demonstrate proof of stock ownership and how to obtain any information you may need, are posted at www.virtualshareholdermeeting.com/IDCC2024.

Who is entitled to vote at the annual meeting?

Only shareholders of record at the close of business on April 10, 2024, the record date, are entitled to receive notice of, and to vote at, the annual meeting. If you were a shareholder on that date, you will be entitled to vote all of the shares of common stock that you held on that date at the annual meeting, or any postponements or adjournments of the annual meeting. There were 25,366,746 shares of our common stock outstanding on the record date.

What are the voting rights of the holders of the company’s common stock?

Each share of our common stock outstanding on the record date will be entitled to one vote on each director nominee and one vote on each other matter considered at the annual meeting.

What constitutes a quorum?

A quorum is the minimum number of our shares of common stock that must be represented at a duly called meeting, which includes participation by electronic means such as a live webcast, or by proxy in order to conduct business legally at such meeting. For the annual meeting, the presence, live at the meeting or by proxy, of the holders of a majority of the shares entitled to vote will be considered a quorum. If you are a registered shareholder, voting by Internet or telephone or, if you requested a paper copy of the proxy materials, by mail, or attendance at the annual meeting, will cause you to be counted in the determination of a quorum. If you are a street name shareholder, your broker or other nominee will vote your shares pursuant to your instructions, and such shares will count in the determination of a quorum. If you do not provide any specific voting instructions to your broker or other nominee, your shares will still count for purposes of attaining a quorum, so long as you provide voting instructions for at least one matter or your broker or other nominee votes with respect to a matter for which they do not require your instructions, such as the ratification of the appointment of our independent registered public accounting firm.

How do I vote?

If you are a registered shareholder, you may vote by Internet or telephone by following the instructions in the Notice. If you requested a paper copy of the proxy materials, you also may submit your proxy by mail by following the instructions included with your proxy card. The deadline for submitting your proxy by Internet or telephone is 11:59 PM Eastern Time on June 4, 2024. The designated proxy will vote according to your instructions. If you attend the live webcast of the annual meeting you also will be able to vote your shares electronically at the meeting up until the time the polls are closed.

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If you are a street name holder, your broker or nominee firm is the legal, registered owner of the shares, and it may provide you with a Notice. Follow the instructions on the Notice to access our proxy materials and vote or to request a paper or email copy of our proxy materials. If you receive these materials in paper form, the materials include a voting instruction card so that you can instruct your broker or nominee how to vote your shares. Please check your Notice or voting instruction card or contact your broker or other nominee to determine whether you will be able to deliver your voting instructions by Internet or telephone in advance of the meeting and whether, if you attend the live webcast of the annual meeting, you will be able to vote your shares electronically at the meeting up until the time the polls are closed.

If you own shares through a retirement or savings plan or other similar plan, you may submit your voting instructions by Internet, telephone or mail by following the instructions included with your voting instruction card. The deadline for submitting your voting instructions by Internet or telephone is 11:59 PM Eastern Time on May 30, 2024. The trustee or administrator of the plan will vote according to your instructions and the rules of the plan.

If you sign and submit your proxy without specifying how you would like your shares voted, your shares will be voted in accordance with the Board’s recommendations specified below under “What are the Board’s recommendations?” and in accordance with the discretion of the proxy holders with respect to any other matters that may be voted upon at the annual meeting.

Even if you plan to attend the annual meeting, we recommend that you also submit your proxy card or vote by Internet or telephone by the applicable deadline so that your vote will be counted if you later decide not to attend the meeting.

Can I change my vote after I return my proxy or voting instruction card?

If you are a registered shareholder, you may revoke or change your vote at any time before the proxy is voted by filing with our Corporate Secretary either a written notice of revocation or a duly executed proxy bearing a later date. If you attend the live webcast of the annual meeting you may revoke your proxy or change your proxy vote by voting electronically at the meeting. Your attendance at the annual meeting will not by itself revoke a previously granted proxy.

If your shares are held in street name or you hold shares through a retirement or savings plan or other similar plan, please check your voting instruction card or contact your broker, nominee, trustee or administrator to determine whether you will be able to revoke or change your vote.

Will my vote be confidential?

It is our policy to maintain the confidentiality of proxy cards, ballots and voting tabulations that identify individual shareholders except as might be necessary to meet any applicable legal requirements and, in the case of any contested proxy solicitation, as might be necessary to allow proper parties to verify proxies presented by any person and the results of the voting.

What are the Board’s recommendations?

The Board recommends that you vote:

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What vote is required to approve each proposal?

Election of directors. We have adopted majority voting in uncontested director elections. Accordingly, under our articles of incorporation and bylaws, director nominees must receive the affirmative vote of a majority of the votes cast in order to be elected. A majority of the votes cast means that the number of votes cast “for” a director nominee must exceed the number of votes cast “against” that nominee. Abstentions, while included for purposes of attaining a quorum, will have no effect on the outcome of director elections. Under Pennsylvania law and our articles of incorporation and bylaws, an incumbent director who does not receive the votes required to be re-elected remains in office until his or her successor is elected and qualified, thereby continuing as a “holdover” director. Under the director resignation policy in our corporate governance principles, a director who is not re-elected must tender his or her resignation to the Nominating and Corporate Governance Committee of the Board, which will make a recommendation to the Board as to whether or not the resignation offer should be accepted. In deciding whether to accept the resignation offer, the Board will consider the recommendation of the Nominating and Corporate Governance Committee as well as any additional information and factors that the Board believes to be relevant. The Board will act on the Nominating and Corporate Governance Committee’s recommendation within ninety (90) days following certification of the election results.

Advisory resolution to approve executive compensation. The affirmative vote of a majority of the votes cast is required for approval. Because the vote is advisory, it will not be binding on the Board or the company. Abstentions, while included for purposes of attaining a quorum, will have no effect on the outcome of the proposal.

Ratification of the appointment of PricewaterhouseCoopers LLP. The affirmative vote of a majority of the votes cast is required for ratification. Abstentions, while included for purposes of attaining a quorum, will have no effect on the outcome of the proposal. Ratification of the appointment of our independent registered public accounting firm is not legally required. The Board asks shareholders to ratify the appointment as a matter of good corporate governance. If shareholders do not ratify the appointment, the Audit Committee of the Board will consider whether it is appropriate to select another independent registered public accounting firm in future years.

What is a “broker non-vote”?

If you hold your shares in street name through a broker or other nominee, your broker or nominee may not be permitted to exercise voting discretion with respect to non-routine matters if you do not provide voting instructions. “Broker non-votes” are shares held in street name by a broker or nominee that is present or represented by proxy at a shareholders meeting to vote, but for which the beneficial owner has not provided the record holder with instructions on how to vote on a non-routine matter. For the annual meeting, if you do not provide specific voting instructions, your broker or nominee may not exercise voting discretion with respect to Proposal 1, the election of directors or Proposal 2, the advisory vote on executive compensation. If you do not provide specific voting instructions, your broker or nominee may exercise voting discretion with respect to Proposal 3, the ratification of the appointment of the company’s independent registered public accounting firm. Therefore, we do not expect any broker non-votes to occur for Proposal 3, but broker-non-votes may occur for Proposals 1 and 2. Broker non-votes will be counted for the purposes of calculating whether a quorum is present at the annual meeting but will have no effect on the outcome of the vote.

How do I ask questions at the annual meeting?

We have designed the virtual annual meeting to provide substantially the same opportunities to participate as shareholders would have at an in-person meeting. The virtual annual meeting format allows shareholders to communicate with the company during the annual meeting so they can ask questions of our management and Board, as appropriate. If you wish to submit a question during the annual meeting, you may do so by logging into the virtual meeting platform at www.virtualshareholdermeeting.com/IDCC2024, typing your question into the “Ask a Question” field and clicking “Submit.”

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We reserve the right to exclude questions regarding topics that are not pertinent to meeting matters or company business or are inappropriate. If we receive substantially similar questions, we may group such questions together and provide a single response to avoid repetition. Any questions that are appropriate and pertinent to the annual meeting will be answered in the live Q&A session during the annual meeting, subject to time constraints. Any such questions that cannot be answered during the annual meeting due to time constraints will be posted and answered on our Investor Relations website, http://ir.interdigital.com, as soon as practicable after the annual meeting.

Additional information regarding the ability of shareholders to ask questions during the annual meeting, related rules of conduct, and other materials for the annual meeting will be available during the annual meeting at www.virtualshareholdermeeting.com/IDCC2024.

How do I access technical support during the annual meeting?

If you encounter any difficulties accessing the virtual annual meeting during the check-in or meeting time, please call the technical support number that will be posted on the virtual meeting login page for assistance. Technical support will be available beginning approximately 15 minutes prior to the start of the annual meeting through its conclusion. Additional information regarding matters addressing technical and logistical issues, including technical support during the annual meeting, will be available at www.virtualshareholdermeeting.com/IDCC2024. The virtual annual meeting platform is fully supported across browsers (Edge, Firefox, Chrome, and Safari) and devices (desktops, laptops, tablets, and smartphones) running the most updated version of applicable software and plugins. You should ensure that you have a strong internet connection if you intend to attend and/or participate in the annual meeting.

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GOVERNANCE OF THE COMPANY

Where can I find information about the governance of the company?

The company has adopted corporate governance principles that, along with the charters of each of the Board committees, provide the framework for the governance of the company. The Nominating and Corporate Governance Committee is responsible for annually reviewing the principles and recommending any proposed changes to the Board for approval. A copy of our corporate governance principles is posted on our website at http://ir.interdigital.com under the IR menu heading “ESG – Governance,” along with the charters of each of our Board committees and other information about our governance practices. We will provide to any person without charge a copy of any of these documents upon written request to our Corporate Secretary at our principal executive offices: InterDigital, Inc., 200 Bellevue Parkway, Suite 300, Wilmington, Delaware 19809-3727.

Code of Ethics

Does the company have a code of ethics?

We have adopted a Code of Ethics that applies to all directors, officers, employees and consultants, including our principal executive, financial and accounting officers or persons performing similar functions. The Audit Committee is responsible for annually reviewing the Code of Ethics and recommending any proposed changes to the Board for approval. A copy of our Code of Ethics is available on the company’s website at http://ir.interdigital.com under the IR menu heading “ESG – Governance – Governance Documents.” We intend to disclose future amendments to certain provisions of the Code of Ethics, or any waiver of such provisions granted to executive officers and directors, on the website within four business days following the date of such amendment or waiver. We will provide to any person without charge a copy of our Code of Ethics upon written request to our Corporate Secretary at InterDigital, Inc., 200 Bellevue Parkway, Suite 300, Wilmington, Delaware 19809-3727.

Director Independence

Which directors are considered independent, and how does the Board determine their independence?

Each year, prior to the annual meeting of shareholders, the Board reviews and assesses the independence of its directors and makes a determination as to the independence of each director. During this review, the Board considers transactions and relationships between each director or any member of his or her immediate family and our company and its subsidiaries and affiliates. As a result of these reviews, the Board affirmatively determined that each of Mses. Joan H. Gillman and Jean F. Rankin, Messrs. Derek K. Aberle, Samir Armaly, S. Douglas Hutcheson, John A. Kritzmacher and John D. Markley, Jr. and Dr. Pierre-Yves Lesaicherre are “independent” under applicable SEC rules and listing standards of the Nasdaq Stock Market.

Board Leadership

Who is the Chairman of the Board, and are the positions of Chairman of the Board and Chief Executive Officer separated?

Mr. Hutcheson, who is an independent director, has served as Chairman of the Board since June 2015. The Board has a general policy that the positions of Chairman of the Board and Chief Executive Officer should be held by separate persons as an aid in the Board’s oversight of management. This policy is affirmed in the Board’s published corporate governance principles, which mandate that the Chairman of the Board be an independent director. The Board believes that this leadership structure is appropriate for the company at this time because of the advantages of having an independent chairman for matters such as communications and relations between the Board and the Chief Executive Officer and other senior management, reaching consensus on company strategies and policies, and facilitating robust Board, committee and Chief Executive Officer evaluation processes. The

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Board periodically reviews its leadership structure to determine whether it is appropriate given the specific characteristics and circumstances of the company.

Board Oversight of Risk

What is the Board’s role in risk oversight?

The Board is responsible for overseeing the major risks facing the company and the company’s enterprise risk management (“ERM”) efforts. The Board has delegated to the Audit Committee primary responsibility for overseeing and monitoring these efforts. Under its charter, the Audit Committee is responsible for discussing with management and the company’s independent registered public accounting firm significant risks and exposures relating to the company’s quarterly and annual financial statements and assessing management’s steps to mitigate them, and for reviewing corporate insurance coverage and other risk management programs, including those related to cybersecurity, information and technology security and data privacy related risks. At least quarterly, the Audit Committee receives presentations and reports directly from the company’s Chief Legal Officer, who leads the company’s day-to-day ERM efforts. The Audit Committee briefs the Board on the company’s ERM activities as part of its regular reports to the Board on the activities of the committee, and the Chief Legal Officer also periodically delivers presentations and reports to the full Board as appropriate.

Environmental, Social and Governance Matters

Our Nominating and Corporate Governance Committee has primary oversight over environmental, social and governance (“ESG”) matters, which it exercises in conjunction with the other committees of the Board. In addition, our Chief Financial Officer oversees a committee of senior executives that steers the process of setting purpose, strategies, policies and goals related to economic, environmental and social topics. We are committed to sustainable business principles, to thinking long-term and to making strategic decisions that adhere to our mission and values.

In 2023, we continued our efforts to improve our company-wide ESG performance. This included furthering our efforts to track and reduce our carbon footprint. We were able to increase our renewable energy footprint to 52% of our data center consumption from 43% in 2022. Globally, 31% of our total energy consumption came from renewable sources in 2023. We also committed to relocating our office in London and reassigning certain employees in New York to our new Melville office to reduce our overall global office CO2 emissions from our commuting workforce. As part of these efforts, we opened our new “green” office space at our largest facility in Rennes, France in the second quarter of 2023. This new facility is BREEAM certified for sustainability, allowing us to reduce our annual energy consumption in Rennes by 50%, exceeding the estimated goal of 25% reduction with this new office.

We have also made a commitment to Board diversity, as described further in “Board Structure and Committee Membership—Nominating and Corporate Governance Committee” below. Further, we believe that maintaining a diverse, equitable and inclusive workforce is critical to our ability to succeed in the global marketplace. In recent years we have invested in our talent acquisition, talent development, and succession planning efforts as a means to diversify our workforce. We have continually provided historically underrepresented and female leaders the opportunity to attend targeted world-class external development programs that speak to the unique experiences these employees can face in the workplace while investing in their continued growth both personally and professionally. In addition, core principles of our culture of inclusion are reflected in the all-employee training programs we offer on our policies against harassment and discrimination of any kind. In 2022 we launched our Diversity, Equity & Inclusion (“DEI”) taskforce, an employee-led team focused on supporting the execution of InterDigital’s DEI strategy.

We maintain a Sustainability webpage at https://ir.interdigital.com/esg/overview/ and intend to regularly communicate our goals and progress on various ESG matters. The information on our sustainability website is not incorporated by reference into, and does not form part of, this proxy statement.

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Board Structure and Committee Membership

What is the size of the Board, and how often are directors elected?

The Board currently has nine directors. All directors are subject to election for one-year terms at each annual meeting of shareholders.

How often did the Board meet during 2023?

The Board met five times during 2023. Each director is expected to attend each meeting of the Board and those committees on which he or she serves. Each director attended at least 75% of the aggregate of all Board meetings and meetings of committees on which the director served during 2023. We typically schedule one of the meetings of the Board on the day immediately preceding or following our annual meeting of shareholders, and it is the policy of the Board that directors are expected to attend our annual meeting of shareholders absent unusual circumstances. All nine of our directors attended the 2023 annual meeting of shareholders.

What are the roles of the primary Board committees?

The Board has standing Audit, Human Capital (formerly Compensation), Finance, and Nominating and Corporate Governance Committees. The Board also forms additional standing or ad hoc committees from time to time. Each of the Audit, Human Capital, and Nominating and Corporate Governance Committees is composed entirely of independent directors, as determined by the Board in accordance with applicable SEC rules and listing standards of the Nasdaq Stock Market. Mr. Chen does not serve on any of the committees but generally attends each committee meeting. Each of the Board committees operates under a written charter that has been approved by the Board. The following table provides information about the current membership of the committees and the number of meetings each committee held in 2023.

Audit Committee

The Audit Committee assists the Board in fulfilling its oversight responsibilities relating to the company’s corporate accounting, financial reporting practices, audits of its financial statements and compliance with applicable requirements regarding the maintenance of accurate books and records. Among other things, the committee:

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All of the Audit Committee members are financially literate. The Board has determined that three of its members (Messrs. Hutcheson, Kritzmacher and Markley), including one of the current members of the Audit Committee (Mr. Kritzmacher), qualify as “audit committee financial experts” within the meaning of applicable SEC regulations and thereby meet the “financial sophistication” requirements of the Nasdaq listing rules. Mr. Kritzmacher acquired his expertise primarily through his prior experience as a chief financial officer of a publicly traded company.

Human Capital Committee

The Human Capital Committee assists the Board in discharging its responsibilities relating to the compensation of the Chief Executive Officer and other executive officers, develops, reviews and approves the principles guiding the company’s compensation policies, oversees the company’s compensation-related policies and programs and the level of awards to employees, and assists the Board and the Chairman of the Board in succession planning. Among other things, the committee:

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The Human Capital Committee may delegate authority to the committee chair or a sub-committee, as the committee may deem appropriate, subject to such ratification by the committee as the committee may direct. The Human Capital Committee also may delegate to one or more officers of the company the authority to make grants of stock options or other supplemental awards at specified levels, under specified circumstances, to eligible employees who are not executive officers of the company, subject to reporting to and such ratification by the committee as the committee may direct.

Human Capital Committee Interlocks and Insider Participation

Ms. Rankin and Messrs. Aberle, Hutcheson and Markley served on the Human Capital Committee during all of 2023. No director serving on the Human Capital Committee during any part of 2023 was, at any time either

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during or before such fiscal year, an officer or employee of the company or any of its subsidiaries. In addition, none of the company’s executive officers has served as a member of a board of directors or a compensation committee, or other committee serving an equivalent function, of any other entity, one of whose executive officers served as a member of the company’s Board or Human Capital Committee.

Nominating and Corporate Governance Committee

The Nominating and Corporate Governance Committee assists the Board in identifying qualified individuals to become Board and committee members, considers matters of corporate governance and assists the Board in evaluating the Board’s effectiveness. Among other things, the committee:

The committee will consider director candidates recommended by our shareholders. Shareholders recommending candidates for consideration by the Nominating and Corporate Governance Committee should send their recommendations to our Corporate Secretary at InterDigital, Inc., 200 Bellevue Parkway, Suite 300, Wilmington, Delaware 19809-3727. The recommendation must include the candidate’s name, biographical data and qualifications and a written statement from the candidate of his or her consent to be named as a candidate and, if nominated and elected, to serve as a director. The committee may ask candidates for additional information as part of the process of assessing a shareholder-recommended director candidate. The committee evaluates director candidates recommended by shareholders based on the same criteria used to evaluate candidates from other sources.

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We are committed to having at least two diverse directors, including at least one who self-identifies as female and at least one who self-identifies as either LGBTQ+ or part of a historically underrepresented group. The Board currently includes four diverse directors, including two who self-identify as female and two who self-identify as part of a historically underrepresented group. As described in our corporate governance principles, with respect to diversity, the Nominating and Corporate Governance Committee may consider such factors as gender, race, ethnicity, differences of perspective, professional background, experience at policy-making levels in business, finance and technology and other areas, education, skill and other individual qualities and attributes that are relevant to the company’s global activities and contribute to Board heterogeneity. The selection criteria for director candidates also include the following:

The company is committed to ensuring that other existing and future anticipated commitments of its directors do not materially interfere with his or her service as a director. Accordingly, our corporate governance principles prohibit any director from serving on the boards of more than four other public companies, unless such director is an executive officer of a public company, and in such cases, such director may not serve on the boards of more than two other public companies. In addition, prior to accepting service on the board of any other company, a director must notify the Board’s Chairman and the Nominating and Corporate Governance Committee, and service on the board or a committee of any other organization should be consistent with the company’s conflict of interest policies.

The Nominating and Corporate Governance Committee periodically evaluates the composition of the Board to assess the skills and experience that are currently represented on the Board, as well as the skills and experience that the Board will find valuable in the future. This evaluation of the Board’s composition enables the Board to update the skills and experience it seeks in the Board as a whole, and in individual directors, as the company’s needs evolve and change over time and to assess the effectiveness of efforts at pursuing diversity. See “Proposals to be Voted On – Election of Directors (Proposal 1)” for a summary of the qualifications, experience and other relevant attributes of the directors nominated for election at this year’s annual meeting.

The Nominating and Corporate Governance Committee has previously retained and may in the future retain a search firm to help identify director prospects, perform candidate outreach, assist in reference checks, and provide other related services. The recruiting process typically involves either the search firm or a member of the Nominating and Corporate Governance Committee contacting a prospect to gauge his or her interest and availability. A candidate will then meet with several members of the Board, including our Chief Executive Officer. At the same time, the Nominating and Corporate Governance Committee or other Board members, as appropriate, and the search firm will contact references for the prospect. A background check is completed before the Board approves any final recommendation from the committee to appoint a candidate to the Board.

Finance Committee

The primary role of the Finance Committee is to monitor and provide guidance to the company’s management team and recommend actions to the Board with respect to certain investment and financial policies and strategies and the capital structure of the company, and to approve certain investment and divestment activities of the company and funding for certain affiliated entities of the company. Among its specific duties and responsibilities, the committee:

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The committee may delegate authority to the committee chair or a sub-committee, as the committee may deem appropriate, subject to such ratification by the committee as the committee may direct.

Board Self-Evaluation Process

How does the Board evaluate its effectiveness?

The Nominating and Corporate Governance Committee establishes and oversees the annual self-assessment process that the Board uses to evaluate its effectiveness and identify opportunities for improvement. Each director is asked to provide an assessment of the Board’s effectiveness in several areas, including information and planning, content and conduct of meetings, and accountability. Once the responses are compiled, the Nominating and Corporate Governance Committee, in conjunction with the Board’s Chairman, identifies specific areas of improvement for the following year. The assessment also asks each director their opinion of the Board’s progress in these identified areas.

Communications with the Board

How can shareholders communicate with the Board?

Shareholders and other parties interested in communicating directly with any individual director, including the Chairman, the Board as a whole, or the non-employee directors as a group may do so by writing to Investor Relations, InterDigital, Inc., 200 Bellevue Parkway, Suite 300, Wilmington, Delaware 19809-3727, or by sending an email to InvestorRelations@InterDigital.com. Each communication should set forth (i) the name and address of the shareholder as it appears on the company’s books, and, if the company’s common stock is held by a nominee, the name and address of the beneficial owner of the company’s common stock, and (ii) the class and number of shares of the company’s common stock that are owned of record by the record holder and beneficially by the beneficial owner. Our Investor Relations department reviews all such correspondence and, in consultation with appropriate directors and/or the company’s Legal department as necessary, generally screens communications from shareholders to identify communications that (a) are solicitations for products and services, (b) relate to matters of a personal nature not relevant for the company’s shareholders to act on or for the Board to consider, or (c) are matters that are of a type that render them improper or irrelevant to the functioning of the Board or the company. The Investor Relations department regularly forwards to the Board or specified director(s) a summary of all relevant correspondence and copies of all correspondence that deal with the functions of the Board or its committees or that otherwise require their attention. Directors may, at any time, review a log of all correspondence we receive that is addressed to members of the Board and request copies of any such correspondence.

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Communications About Accounting Matters

How can individuals report concerns relating to accounting, internal control, auditing or federal securities law matters?

Concerns relating to accounting, internal control, auditing or federal securities law matters may be submitted by writing to our Corporate Secretary at InterDigital, Inc., 200 Bellevue Parkway, Suite 300, Wilmington, Delaware 19809-3727. All correspondence will be brought to the attention of the chair of the Audit Committee and handled in accordance with procedures established by the Audit Committee with respect to these matters.

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DIRECTOR COMPENSATION

How are directors compensated?

During 2023, our non-employee directors were paid annual cash retainers for their Board and committee participation as follows:

All cash retainers are generally paid quarterly in arrears and based upon service for a full year, and prorated payments are made for service of less than a full year.

The compensation program is designed to compensate each non-employee director for participating in up to ten Board meetings per year and up to ten meetings per year for each standing committee on which the non-employee director serves. Additional compensation is paid to each non-employee director for participating in meetings during the Board term (which runs from annual meeting date to annual meeting date) in excess of these thresholds, as follows: $4,000 for each additional Board meeting and $1,000 for each additional committee meeting.

In addition, non-employee directors are paid a per diem fee of $1,000 for attendance at or participation in events, conferences or meetings, in their capacity as a director, at the request of the company’s senior management, provided that such attendance or participation requires a significant time commitment and would be considered outside of the director’s typical Board and/or committee duties. Any per diem fee payments are subject to the approval of the Human Capital Committee.

For his or her service during the 2023-2024 Board term, each non-employee director received a restricted stock unit (“RSU”) award in an amount approximately equal in value to $187,500 that vests in full one year from the grant date. Upon his or her initial appointment to the Board, new non-employee directors receive a pro-rated RSU award for his or her partial service during the then-current Board term, as well as an initial appointment award of RSUs in an amount equal in value to $150,000 that vests in full one year from the grant date. The number of RSUs granted is calculated using the closing stock price of the company’s common stock on the date of grant. The vesting of RSU awards may be deferred. Except in certain limited circumstances, an election to defer must be made in the calendar year preceding the year that the award is made. Unvested time-based RSUs and deferred RSUs accrue dividend equivalents, which are paid in the form of additional shares of stock at the time, and only to the extent, that the awards vest or at the end of the deferral period, as applicable.

To align the interests of non-employee directors and executives with those of our shareholders, the company has adopted stock ownership guidelines. The stock ownership guidelines applicable to the non-employee directors are set at a target of the lesser of (a) company stock valued at an amount equal to five times the annual cash retainer for directors of $65,000 or (b) 6,000 shares/units of the company’s stock. Qualifying stock includes shares of common stock and restricted stock. For purposes of calculating the value of company stock holdings, each share or other qualifying stock unit is priced at a price per share/unit equal to the average closing stock price of the company’s common stock for the 200 trading days leading up to and including the calculation date. The 200-day average closing stock price is calculated annually on the date of the company’s annual meeting of shareholders. Any director who has not reached or fails to maintain the target ownership level must retain at least

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50% of any after-tax shares derived from vested RSUs until the target ownership level is met. A director may not make any disposition of shares that results in his or her holdings falling below the target ownership level without the express approval of the Human Capital Committee. Directors have five years to reach their target ownership level. As of March 31, 2024, all non-employee directors had either met their target ownership level or had more time to do so, and all directors who had not yet met their target ownership level were in compliance with the guidelines.

The company’s directors are also eligible to participate in the company’s nonqualified deferred compensation plan by deferring receipt of their annual Board fees. None of the directors elected to defer any of their 2023 Board fees. For more information about the deferred compensation plan, see “Executive Compensation – Nonqualified Deferred Compensation.”

2023 Director Compensation Table

The following table sets forth the compensation paid to each person who served as a director of the company in 2023 for their service in 2023. Directors who also serve as employees of the company do not receive any additional compensation for their services as a director. For Mr. Chen’s 2023 compensation, see “Executive Compensation – Summary Compensation Table.”

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As of December 31, 2023, each person who served as a non-employee director of the company in 2023 had the following aggregate amounts of unvested RSU awards (excluding accrued dividend equivalents) outstanding. None of our non-employee directors had any options outstanding as of December 31, 2023. This table does not include RSUs that, as of December 31, 2023, had vested according to their vesting schedule, but had been deferred.

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PROPOSALS TO BE VOTED ON

Election of Directors

(Proposal 1)

Description

Which directors are nominated for election?

Mses. Joan H. Gillman and Jean F. Rankin, Messrs. Samir Armaly, Derek K. Aberle, Liren Chen, S. Douglas Hutcheson, John A. Kritzmacher and John D. Markley, Jr. and Dr. Pierre-Yves Lesaicherre are recommended by the Nominating and Corporate Governance Committee and nominated by the Board for election at the 2024 annual meeting, each to serve a one-year term until our annual meeting in 2025 and until his or her successor is elected and qualified.

Set forth below is biographical information about the nine nominees and other information about their skills and qualifications that contribute to the effectiveness of the Board. All of the nominees’ current terms of office expire at the 2024 annual meeting.

What are their backgrounds?

Derek Aberle, 54, has been a director of the company since September 2022. Mr. Aberle is Co-founder and Executive Vice Chairman of Virewirx, Inc. (formerly XCOM Labs), a company focused on developing and commercializing advanced wireless and XR technologies. Prior to that, from 2000 through 2018, Mr. Aberle served in various senior executive roles at Qualcomm, including as President of Qualcomm from 2014 through 2018. Beginning in 2008, Mr. Aberle served as a member of Qualcomm’s executive committee, as Executive Vice President and President of Qualcomm Technology Licensing from 2008 through 2011 and as Executive Vice President and Group President from 2011 through 2014 where, among other things, he led Qualcomm’s technology and IP licensing business, helping to significantly grow its global licensing business and negotiating deals with its largest licensees. Mr. Aberle also served as Chief Executive Officer and director of Prospector Capital Corp., a special purpose acquisition company, from its inception in 2020 through 2023. Prior to Qualcomm, Mr. Aberle was an attorney with the international law firms Pillsbury Winthrop and Heller Ehrman. Mr. Aberle also serves on the boards of directors of Virewirx, LeddarTech (LDTC) and EvoNexus. The Board has concluded that Mr. Aberle should serve as a director of the company because of his years of experience in patent licensing and his global business acumen and leadership.

Samir Armaly, 51, is currently a director and advisor to various technology companies. Mr. Armaly served as President, IP of Adeia, Inc., a leading IP licensing business, from June 2020 to March 2022. From 2017 to 2020, he was a Strategic IP Advisor to the CEO and Board of Directors of TiVo Corporation. From 2001 to 2017, Mr. Armaly held various senior management positions and ran the video IP licensing business of Gemstar – TV Guide and its successor, Rovi Corporation. Previously, Mr. Armaly was an IP attorney in private practice representing media and technology companies. He graduated from the University of Missouri Columbia with a B.S. degree in Mechanical Engineering and received his J.D. degree from the University of California Berkeley. The Board has concluded that Mr. Armaly should serve as a director of the company because he is a recognized IP expert, having run one of the world’s largest patent licensing businesses, and has particular expertise in the media and technology markets.

Lawrence (Liren) Chen, 53, has been a director of the company since April 2021, when he was also appointed as our President and Chief Executive Officer. Mr. Chen joined InterDigital from Qualcomm where he served since August 2019 as Senior Vice President, Global Head of IP, Legal Counsel. In that role, Mr. Chen was responsible for overseeing Qualcomm’s world-wide intellectual property portfolio (patent, copyright, trademark and open source) and led technology, business strategy, product management and global eco-system development for Qualcomm Technology Licensing. In the 23 years preceding that, Mr. Chen served in various IP and

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technology roles at Qualcomm, including as Senior Vice President of Engineering, Legal Counsel. He holds 28 granted patents in the U.S. and over 120 granted patents worldwide. Mr. Chen earned his bachelor’s degree in Automation from Tsinghua University, Beijing; his M.S.E.E. from the University of Maine; his M.B.A. from San Diego State University; and his J.D. degree from the University of San Diego.

Joan H. Gillman, 60, has been a director of the company since April 2017. From 2006 to 2016, Ms. Gillman served as Executive Vice President of Time Warner Cable, Inc. (“Time Warner Cable”), as well as Chief Operating Officer of Time Warner Cable Media and President of Time Warner Cable Media, LLC. Ms. Gillman joined Time Warner Cable as Vice President of Interactive TV and Advanced Advertising in 2005. Prior to Time Warner Cable, among other roles, she served as the President of Static2358, the interactive TV, games and production subsidiary of OpenTV, and as Director, Business Development, of British Interactive Broadcasting, the digital and interactive TV joint venture between BSkyB, BT, HSBC and Matsushita. Ms. Gillman began her career working in public affairs, serving in various roles for a U.S. Senator, including as Legislative Director and State Director. From October 2016 to February 2021, Ms. Gillman was a member of the board of directors of Centrica plc, an international energy and services company based in the United Kingdom where she served on the safety, health, environment, security, remunerations and ethics and nominating committees. In addition, since November 2016, she has served on the board of directors of Airgain, Inc., a leading provider of embedded antenna technologies used to enable high performance wireless networking, and she is currently a member of such board’s audit committee, and chairs the nominating and corporate governance committee, as well as the board of directors of Cumulus Media, which she joined in June 2018 and where she is a member of the compensation and nominating committees. Since May 2018, she has also chaired the Jesuit Volunteer Corps and is the Foundation Manager and Trustee of the David T. Langrock Foundation. The Board has concluded that Ms. Gillman should serve as a director of the company because her more than 20 years of executive experience in the media and communications industries and her knowledge of content development and distribution as well as key areas like partnership, mergers and acquisitions and marketing make her a valuable resource and strengthen the company’s knowledge of the companies and industries shaping its existing and future markets.

S. Douglas Hutcheson, 68, has been a director of the company since July 2014, and he assumed the role of Chairman of the Board in June 2015. From 2019 to 2024, Mr. Hutcheson served as the Executive Chairman of Kymeta Corporation, an electronically steerable terminal manufacturer and provider of services for global connectivity. He also served as the co-CEO of Kymeta from 2021 to 2024. Since 2015, Mr. Hutcheson has served as a senior advisor of Technology, Media and Telecom for Searchlight Capital, a global private investment firm. From March 2014 through May 2017, Mr. Hutcheson served as Chief Executive Officer and a director of Laser, Inc., a corporation created in connection with the acquisition of Leap Wireless International, Inc. (“Leap Wireless”), a wireless communications carrier, by AT&T in March 2014. Prior to March 2014, Mr. Hutcheson served as Chief Executive Officer of Leap Wireless and its operating subsidiary, Cricket Communications, for nine years, where he was responsible for developing and implementing strategy, all operations, and the oversight of all relationships and partnerships. Before serving as Chief Executive Officer, Mr. Hutcheson held other executive positions at Leap Wireless, including President and Chief Financial Officer. Prior to joining Leap Wireless, he was Vice President of Marketing in the wireless infrastructure division at Qualcomm for three years, where he led multiple teams. He previously served on the boards of directors of Leap Wireless from 2005 to 2014 and Pitney Bowes from 2012 to 2023. The Board has concluded that Mr. Hutcheson should serve as a director of the company because, with his significant operational and financial expertise as an experienced former chief executive officer of a wireless communications company and his broad business background, which includes strategic planning and product and business development and marketing, he brings valuable insight that is needed to evolve and execute the company’s strategy. He also qualifies as an audit committee financial expert.

John A. Kritzmacher, 63, has been a director of the company since June 2009. From 2013 to 2021, Mr. Kritzmacher served as Executive Vice President and Chief Financial Officer of John Wiley & Sons, Inc., a global provider of research communications and education services. From October 2012 through February 2013, Mr. Kritzmacher served as Senior Vice President Business Operations and Organizational Planning at WebMD Health Corp., a leading provider of health information services, where Mr. Kritzmacher was responsible for

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leading a major restructuring initiative. Previously, Mr. Kritzmacher served as Executive Vice President and Chief Financial Officer of Global Crossing Limited, a global provider of IP-based telecommunications solutions, from October 2008 to October 2011, when Global Crossing was acquired by Level 3 Communications, Inc. Prior to that, Mr. Kritzmacher rose through a variety of positions with increasing responsibility, including Senior Vice President and Corporate Controller, during his 10 years at Lucent Technologies Inc., a provider of telecommunications systems and services, to become Chief Financial Officer in 2006. After playing a leading role in the planning and execution of Lucent’s merger with Alcatel in 2006, Mr. Kritzmacher became Chief Operating Officer of the Services Business Group at Alcatel-Lucent until joining Global Crossing in 2008. Mr. Kritzmacher serves on the board of directors of Unisys and currently serves on the audit & finance and security & risk committees of such board. The Board has concluded that Mr. Kritzmacher should serve as a director of the company because he is a veteran of the telecommunications and high technology industries with extensive operational and leadership experience and financial expertise. As such, Mr. Kritzmacher contributes valuable advice and guidance, especially with respect to complex financial and accounting issues, and qualifies as an audit committee financial expert.

Pierre-Yves Lesaicherre, 60, has been a director of the company since June 2021. Since June 2023, Dr. Lesaicherre has been acting as the CEO and executive director of Finwave Semiconductor, Inc. Before that, he was the President, Chief Executive Officer and Director of Nanometrics Incorporated from November 2017 to October 2019. From January 2012 to February 2017, Dr. Lesaicherre was the CEO of Lumileds, an integrated manufacturer of LED components and Automotive Lighting Lamps. Prior to that, he held senior executive positions at NXP Semiconductors, from 2006 to 2012. Before NXP, Dr. Lesaicherre was with Philips Semiconductors. Dr. Lesaicherre holds an MBA with a focus on international business and strategy from INSEAD and has MS and Ph.D. degrees in Material Science from the National Polytechnic Institute of Grenoble. The Board has concluded that Dr. Lesaicherre should serve as a director of the company because of his more than 20 years of experience working in high technology industries, including in France where we have substantial operations.

John D. Markley, Jr., 58, has been a director of the company since November 2016. Since 2009, Mr. Markley has served as Managing Partner of Bear Creek Capital Management, an investment firm focused on the cloud computing, mobile and communications infrastructure sectors. In addition, since 2014, he has been a Managing Partner of New Amsterdam Growth Capital, an investor in communications, media and technology companies. From 1996 to 2009, he was a partner with Columbia Capital, a venture capital firm, where he served in a number of capacities including partner, venture partner and portfolio company executive. Prior to Columbia Capital, Mr. Markley served as a policy advisor at the Federal Communications Commission from 1994 to 1996, where he and his team were instrumental in developing and launching the commercial spectrum auction process. Mr. Markley has also been a director of Charter Communications, Inc., since 2009, currently serving as chair of its nominating and corporate governance committee and as a member of its audit committee. He previously served on the boards of directors of Millennial Media, Inc., from 2006 to 2014, and of BroadSoft, Inc., from 2002 until its acquisition by Cisco Systems, Inc. in February 2018. The Board has concluded that Mr. Markley should serve as a director of the company based on his private equity and operating experience and his extensive experience with communications, media and technology companies, which allow him to contribute guidance and advice relating to the development and execution of the company’s strategy and analysis of potential business opportunities. He also qualifies as an audit committee financial expert.

Jean F. Rankin, 65, has been a director of the company since June 2010. Ms. Rankin served as Executive Vice President, General Counsel and Secretary at LSI Corporation, a leading provider of innovative silicon, systems and software technologies for the global storage and networking markets, from 2007 to May 2014, when LSI was acquired by Avago Technologies Limited. In this role, she served LSI and its board of directors as Corporate Secretary, in addition to managing the company’s legal, intellectual property licensing and stock administration organizations. Ms. Rankin joined LSI in 2007 as part of the merger with Agere Systems Inc., where she served as Executive Vice President, General Counsel and Secretary from 2000 to 2007. Prior to joining Agere in 2000, Ms. Rankin was responsible for corporate governance and corporate center legal support

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at Lucent, including mergers and acquisitions, securities laws, labor and employment, public relations, ERISA, investor relations and treasury. She also supervised legal support for Lucent’s microelectronics business. The Board has concluded that Ms. Rankin should serve as a director of the company because she has extensive experience and expertise in matters involving intellectual property licensing, the company’s core business, and her current and former roles as chief legal officer and corporate secretary at other publicly traded companies enable her to contribute legal expertise and advice as to best practices in corporate governance.

Summary of Director Qualifications and Experience

The following table summarizes the key qualifications, skills, and experience most relevant to the decision to nominate the above-listed candidates to serve on the Board. A mark indicates a specific area of focus or expertise on which the Board relies most. The lack of a mark does not necessarily mean the director does not possess that qualification or skill. Each director biography above describes each director’s qualifications and relevant experience in more detail.

Board Diversity Matrix (as of April 23, 2024)

Based upon responses received from each of our directors with respect to diversity, the Board is currently comprised of individuals from the diverse backgrounds set forth in the table below. To see our Board Diversity Matrix as of April 20, 2023, please see the proxy statement filed with the SEC on April 20, 2023.

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Vote Required and Board Recommendation

A director nominee receiving the affirmative vote of the majority of votes cast for him or her will be elected to serve as a director for the next year and until his or her successor is elected and qualified. A majority of the votes cast means that the number of votes cast “for” a director nominee must exceed the number of votes cast “against” that nominee.

THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS A VOTE FOR

EACH OF THE NOMINEES.

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Advisory Resolution to Approve Executive Compensation

(Proposal 2)

Description

We are asking shareholders to vote on an advisory resolution to approve the company’s executive compensation as reported in this proxy statement. As described below in the “Compensation Discussion and Analysis” section of this proxy statement, the Human Capital Committee has structured our executive compensation program in an effort to align management’s interests with those of its shareholders and to attract, retain and motivate talented individuals who will drive the successful execution of the company’s strategic plan. We motivate our executives primarily by “paying for performance,” or rewarding the accomplishment of individual performance and corporate goals through the use of performance-based compensation. As discussed in the “Compensation Discussion and Analysis” section of this proxy statement, the achievement of financial and strategic corporate goals, as well as departmental and individual performance, determine the short-term and long-term incentive compensation paid to our executives. Our executive compensation programs have a number of features designed to promote these objectives.

We urge shareholders to read the “Compensation Discussion and Analysis” section of this proxy statement below, which describes how our executive compensation policies and procedures operate and are designed to achieve our compensation objectives, as well as the Summary Compensation Table and other related compensation tables and narrative below, which provide detailed information on the compensation of our named executive officers. The Human Capital Committee and the Board believe that the policies and procedures articulated in the “Compensation Discussion and Analysis” section of this proxy statement are effective in achieving our goals and that the compensation of our named executive officers reported in this proxy statement reflects and supports these compensation policies and procedures.

The Board has adopted a policy providing for an annual advisory resolution to approve executive compensation. In accordance with Section 14A of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and as a matter of good corporate governance, we are asking shareholders to approve the following advisory resolution at the 2024 annual meeting of shareholders:

RESOLVED, that the shareholders of InterDigital, Inc. (the “company”) approve, on an advisory basis, the compensation of the company’s named executive officers disclosed in the Compensation Discussion and Analysis, the Summary Compensation Table and the related compensation tables, notes and narrative in the proxy statement for the company’s 2024 annual meeting of shareholders.

This advisory resolution, commonly referred to as a “say on pay” resolution, is non-binding on the Board. Although non-binding, the Board and the Human Capital Committee will review and consider the voting results when making future decisions regarding our executive compensation program. Unless the Board modifies its policy on the frequency of future “say on pay” votes, the next “say on pay” vote will be held at the 2025 annual meeting of shareholders.

Vote Required and Board Recommendation

The affirmative vote of the majority of votes cast is required to approve this advisory resolution.

THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS A VOTE FOR

THE ADVISORY RESOLUTION TO APPROVE EXECUTIVE COMPENSATION.

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Ratification of Appointment of

Independent Registered Public Accounting Firm

(Proposal 3)

Description

The Audit Committee has appointed PricewaterhouseCoopers LLP (“PwC”) as the company’s independent registered public accounting firm for the year ending December 31, 2024. PwC has served as the independent registered public accounting firm of the company since 2002.

Although ratification of the appointment of PwC is not legally required, the Board is asking the shareholders to ratify the appointment as a matter of good corporate governance. If the shareholders do not ratify the appointment, the Audit Committee will consider whether it is appropriate to select another independent registered public accounting firm in future years. Even if the shareholders ratify the appointment, the Audit Committee in its discretion may select a different independent registered public accounting firm at any time during the year if it determines that such a change would be in the best interests of the company and its shareholders.

Representatives from PwC are expected to be present at the annual meeting, will have the opportunity to make a statement if they so desire and are expected to be available to respond to appropriate questions.

Fees of Independent Registered Public Accounting Firm

Aggregate fees for professional services delivered by PwC for the fiscal years ended on December 31, 2023 and 2022 were as follows:

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Audit Committee Pre-Approval Policy for Audit and Non-Audit Services of Independent Registered Public Accounting Firm

The Audit Committee has adopted a policy that requires the committee to pre-approve all audit and non-audit services to be performed by the company’s independent registered public accounting firm. Unless a service falls within a category of services that the Audit Committee already has pre-approved, an engagement to provide the service requires specific pre-approval by the Audit Committee. Also, proposed services exceeding pre-approved cost levels require specific pre-approval.

Consistent with the rules established by the SEC, proposed services to be provided by the company’s independent registered public accounting firm are evaluated by grouping the services and associated fees under one of the following four categories: Audit Services, Audit-Related Services, Tax Services and All Other Services. All proposed services for the following year are discussed and pre-approved by the Audit Committee, generally at a meeting or meetings that take place during the October through December time period. In order to render approval, the Audit Committee has available for reference a schedule of services and fees approved by category for the current year, and specific details of the proposed services are provided to the Audit Committee.

The Audit Committee has delegated pre-approval authority to its chair for cases where services must be expedited. In cases where the Audit Committee chair pre-approves a service provided by the independent registered public accounting firm, the chair is required to report the pre-approval decisions to the Audit Committee at its next scheduled meeting. The company’s management periodically provides the Audit Committee with reports of all pre-approved services and related fees by category incurred during the current fiscal year, with forecasts of any additional services anticipated during the year.

All of the services performed by PwC related to fees disclosed above were pre-approved by the Audit Committee.

Vote Required and Board Recommendation

The affirmative vote of the majority of votes cast at the annual meeting is required to ratify the appointment of PwC as the company’s independent registered public accounting firm for the year ending December 31, 2024.

THE BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS A VOTE FOR

RATIFICATION OF THE APPOINTMENT OF PRICEWATERHOUSECOOPERS LLP AS THE

COMPANY’S INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

FOR THE YEAR ENDING DECEMBER 31, 2024.

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REPORT OF THE AUDIT COMMITTEE

As more fully described in its charter, the Audit Committee oversees the company’s financial reporting processes on behalf of the Board. In fulfilling our oversight responsibilities, the Audit Committee reviewed and discussed with management the company’s audited consolidated financial statements for the year ended December 31, 2023, including a discussion of the acceptability and appropriateness of significant accounting principles and management’s assessment of the effectiveness of the company’s internal control over financial reporting. Management represented to us that the company’s consolidated financial statements were prepared in accordance with accounting principles generally accepted in the United States and considered appropriate in the circumstances to present fairly the company’s financial position, results of operations and cash flows. The Audit Committee also reviewed and discussed with PwC, the company’s independent registered public accounting firm, the matters required to be discussed with the independent registered public accounting firm under applicable requirements of the Public Company Accounting Oversight Board (“PCAOB”) and the SEC.

The Audit Committee also received and reviewed the written disclosures and the letter from PwC required by applicable requirements of the PCAOB regarding PwC’s communications with the Audit Committee concerning independence and discussed with PwC their independence.

Based on the reviews and discussions with management and the independent registered public accounting firm referred to above, the Audit Committee recommended to the Board that the audited financial statements be included in the company’s annual report on Form 10-K for the year ended December 31, 2023, and the Audit Committee retained PwC as the company’s independent registered public accounting firm for the year ending December 31, 2024.

AUDIT COMMITTEE:

John A. Kritzmacher, Chair

Samir Armaly

Joan H. Gillman

Pierre-Yves Lesaicherre

The foregoing Audit Committee report shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended or the Exchange Act and shall not otherwise be deemed filed under these acts, except to the extent specifically incorporated by reference.

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EXECUTIVE OFFICERS

Set forth below is certain information concerning our executive officers as of March 31, 2024:

There are no family relationships among the individuals serving as our directors or executive officers. The company’s executive officers are appointed to their respective offices to hold office until their successors are duly appointed. Biographical information on Mr. Chen is discussed under the caption “Election of Directors” above.

Richard J. Brezski is InterDigital’s Chief Financial Officer, responsible for overseeing the company’s finance, accounting, audit, tax, treasury, and facilities functions, including the company’s internal and external financial reporting and analysis. Mr. Brezski joined the company as Director and Controller in May 2003. Mr. Brezski was promoted to Senior Director in July 2006 and in January 2007 was appointed Chief Accounting Officer. In January 2009, Mr. Brezski was promoted to Vice President, Controller and Chief Accounting Officer, and in March 2011 he was appointed to the additional post of Treasurer. In May 2012, he was appointed Chief Financial Officer. Prior to joining InterDigital, Mr. Brezski served as an audit manager for PwC in its technology, information, communications and entertainment practice, where he provided business advisory and auditing services to product and service companies in the electronics, software and technology industries. Mr. Brezski earned a Bachelor of Science in Accountancy from Villanova University and an Executive Master of Business Administration from Hofstra University.

Eeva K. Hakoranta is InterDigital’s Chief Licensing Officer, responsible for overseeing the company’s complete licensing portfolio and activities. Ms. Hakoranta joined InterDigital in 2020 and contributes more than 30 years of experience in the legal and licensing industry. Prior to joining InterDigital, Ms. Hakoranta served more than 13 years at Nokia, most recently as Senior Vice President and Head of IP and Litigation, as well as General Counsel for Nokia Technologies. Prior to leading Nokia’s IP activities, she was influential in building the company’s patent licensing team and significantly growing its licensing revenue. Before Nokia, Ms. Hakoranta served in private practice at Roschier Attorneys Ltd in Helsinki, Finland. Ms. Hakoranta holds an LLM from the University of Helsinki.

Rajesh Pankaj is InterDigital’s Chief Technology Officer, responsible for leading the company’s technology vision and strategy and advancing the company’s technology roadmaps. Dr. Pankaj joined InterDigital in July 2022 from Qualcomm where he oversaw research in 5G, 4G LTE, augmented reality and other technologies. Prior to joining InterDigital, Dr. Pankaj served as the Senior Vice President, Engineering and Head of Corporate R&D at Qualcomm, where he managed a global team of engineers focused on Artificial Intelligence, Edge Computing and new technologies. During his 25 years at Qualcomm, he also served in a variety of other R&D and engineering roles. Dr. Pankaj is an inventor or co-inventor on 230 patents worldwide. Dr. Pankaj holds a PhD in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology and a Bachelor’s of Technology degree from the Indian Institute of Technology, Kanpur.

Joshua D. Schmidt is InterDigital’s Chief Legal Officer and Corporate Secretary, responsible for managing the company’s legal functions. Mr. Schmidt joined InterDigital in 2015 and previously served as Vice President, Deputy General Counsel, with responsibility for the company’s corporate, commercial, employment and compliance functions, as well as the company’s ESG initiatives and was promoted to Chief Legal Officer and

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Corporate Secretary in October 2021. Prior to that role, Mr. Schmidt served in a variety of roles within InterDigital’s legal department, with primary responsibility for the company’s M&A, corporate governance, and commercial contracting functions. Before joining InterDigital, Mr. Schmidt was an associate at Dechert LLP, where he focused his practice on private and public company M&A, securities offerings, venture capital transactions and joint ventures. Mr. Schmidt holds a Juris Doctor degree from Duke University School of Law and a Bachelor of Science in Business Administration: Finance from the University of Pittsburgh.

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EXECUTIVE COMPENSATION

Compensation Discussion and Analysis

This Compensation Discussion and Analysis (“CD&A”) covers all material elements of compensation awarded to, earned by or paid to the company’s Named Executive Officers (“NEOs”) during 2023 and focuses on the principles underlying the company’s executive compensation policies and decisions.

The CD&A discusses the compensation for the following individuals:

Executive Summary

2023 Business Highlights

Key financial and strategic achievements are highlighted below:

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2023 Compensation Decisions and Actions

The following are highlights of the key compensation decisions made by the Human Capital Committee for 2023:

Shareholder Engagement and Results from 2023 Shareholder Advisory Vote on Executive Compensation

At the 2023 annual meeting of shareholders, we held an advisory vote on executive compensation. In 2023, we received shareholder support for our executive compensation programs with say on pay support of approximately 98% after receiving approximately 64% in 2022. The Human Capital Committee considers the results of the annual advisory vote on executive compensation as a strong data point in its compensation decisions and as a result, expanded its efforts to obtain feedback in the fall of 2022 and spring of 2023, resulting in changes to our compensation program that received approval in 2023.

The Human Capital Committee actively and directly seeks out feedback from shareholders regarding our executive compensation program. Specifically, in both the spring and fall of 2023, the Chair of the Human Capital Committee, our investor relations team, and as appropriate, members of senior management reached out to 25 of our largest investors, which collectively own about two-thirds of our outstanding shares, and ultimately engaged with certain of these investors to discuss and receive input, including about our executive compensation.

In addition, during fiscal year 2023, our investor relations team participated in six investor conferences and three non-deal roadshow events and engaged with over 125 existing and prospective institutional investors to keep an open dialog about our business and performance. Our investor relations team discusses with our shareholders any subject they wish to raise, subject to the limitations of applicable securities law, including financial activities, strategy, ESG and executive compensation.

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Good Governance Practices and Policies

The Human Capital Committee and the company strive to maintain good governance practices and regularly review and update such practices related to the compensation of our executives, including our NEOs. The following table highlights the responsible practices we have implemented, as well as the practices we have avoided, in order to best serve our shareholders’ long-term interests:

What Guides Our Program

Compensation Objectives and Philosophy

The primary purpose of our executive compensation program is to attract, retain and motivate talented individuals who will drive the successful execution of the company’s strategic plan. Specifically, we aim to:

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Pay for Performance (Principal Elements of Pay)

Our executive compensation program is intended to hold our executives accountable for business results and compensate them for strong corporate performance and value creation for our shareholders by rewarding performance that meets or exceeds the goals established by the Human Capital Committee. Our NEOs’ 2023 compensation program was comprised of base salary, STIP and LTCP awards. Consistent with our compensation philosophy, the actual compensation received by our NEOs will vary based on individual and corporate performance measured against annual and long-term performance goals. Additionally, because a significant percentage of our NEOs’ pay is comprised of equity awards, the value of their pay increases and decreases with changes in our stock price. For 2023, approximately 88% of our CEO’s annual target compensation, and on average, 79% of the target compensation of our other NEOs, was comprised of STIP and LTCP awards and thus variable based on the company’s performance.

The Decision-Making Process

Role of the Human Capital Committee. The Human Capital Committee oversees our executive compensation program and has final approval with respect to the composition, structure and amount of all executive officer compensation, subject to Board review. The Human Capital Committee is comprised of at least three independent members of the Board. Guided in the execution of its primary functions by the Board’s philosophy that the interests of key leadership should be aligned with the long-term interests of the company and its shareholders, the Human Capital Committee annually reviews and approves goals relevant to the performance-based incentive compensation of the Chief Executive Officer and other executive officers. The Human Capital Committee works very closely with management and the Human Capital Committee’s independent consultant to examine the effectiveness of the company’s executive compensation program throughout the year. Details of the Human Capital Committee’s authority and responsibilities are discussed above under “Board Structure and Committee Membership—Human Capital Committee” and are specified in the Human Capital Committee’s charter, which is available on our website at on the Investors section of our website at http://ir.interdigital.com under the heading “Governance—Committee Charters”.

Role of Executives. As part of the annual performance and compensation review for executives other than the Chief Executive Officer, the Human Capital Committee considers the Chief Executive Officer’s assessment of the other executives’ departmental and individual performances, reviewing major individual accomplishments and any other recommendations of the Chief Executive Officer regarding their compensation. The Chief

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Executive Officer also reports to the Human Capital Committee on the company’s achievement of objectively measurable goals established under performance-based incentive programs, based upon data provided by management.

Role and Independence of Advisors. The Human Capital Committee has authority to retain independent consultants and other experts to assist in carrying out its responsibilities. The Human Capital Committee selects the consultant, negotiates the fees paid and manages the engagement. For 2023 and previous years, the Human Capital Committee engaged Pearl Meyer, a national executive compensation consulting firm, to advise it and the rest of the Board on matters including, but not limited to, trends in executive compensation, compensation peer group composition, assessing total direct compensation of the executives as compared to the compensation peer group, and short and long-term incentive plan design and compensation of the company’s executive officers. Based on consideration of the factors as set forth in applicable SEC rules and listing standards of the Nasdaq Stock Market, the Human Capital Committee has determined that Pearl Meyer has no conflicts of interest in providing its services. In December 2023, the Human Capital Committee ended its engagement with Pearl Meyer and engaged FW Cook, a national compensation consulting firm, as its new compensation consultant. Similarly, as part of the engagement process with FW Cook, the Human Capital Committee determined that FW Cook has no conflicts of interest in providing its services.

Factors Considered in Setting Compensation Amounts and Targets. In establishing compensation amounts and incentive program targets for executives, the Human Capital Committee seeks to provide compensation that is competitive in light of current market conditions and industry practices. Accordingly, the Human Capital Committee annually reviews market data that is comprised of proxy-disclosed data from peer companies and information from nationally recognized published surveys for high-technology companies, adjusted for size.

Consistent with its review practices, in the fall of 2022, Pearl Meyer assisted the Human Capital Committee with its process of identifying peer group companies for 2023 compensation purposes. When choosing compensation peers, we not only look for companies with similar revenue in the communications equipment industry, but also companies for which licensing revenue is a significant component of their total revenue stream (approximately 20% to 100% of total revenue) and that have a relatively similar profit margin and market capitalization. We removed Inolavan Holdings, Inc. because it was acquired and taken private in 2021. No additional companies were added.

The companies comprising the 2023 compensation peer group were as follows:

Pearl Meyer conducted an executive compensation review using peer group and market data from nationally recognized published surveys to provide the Human Capital Committee context on competitive compensation for comparable executive positions. The data guides the Human Capital Committee in its efforts to set executive compensation levels and program targets at competitive levels for comparable roles in the marketplace. The Human Capital Committee uses the data to look for outliers or, in other words, to identify those executives whose target compensation is substantially below or above the 50^th percentile of the market data with the intention to target between the 50th and 75^th percentile. In addition, the Human Capital Committee takes into account other factors, such as the importance of each executive officer’s role to the company, individual expertise, experience and performance, retention concerns and relevant compensation trends in the marketplace, in making its final compensation determinations.

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2023 Executive Compensation in Detail

Base Salary

Base salary is the fixed element of an executive’s cash compensation, which the company pays to afford each executive the baseline financial security necessary to focus on his or her day-to-day responsibilities. Base salaries for the executives are set at competitive levels to attract and retain highly qualified and talented leaders. The Human Capital Committee reviews and approves base salaries for the executives annually, however, executive base salaries are not subject to automatic annual adjustments.

The Human Capital Committee reviews market data and base salaries of executive officers in the company’s compensation peer group and considers the executive’s experience, scope of responsibility, importance to the company and individual performance when setting base salary. Taking into account those factors, the salary levels of Messrs. Chen and Cohen received modest increases while Messrs. Brezski and Schmidt and Ms. Hakoranta received more substantial increases in order to ensure that their base salaries remained competitive and represented the importance of their roles to the company. All salary adjustments were effective March 1, 2023. No adjustment was made for Mr. Pankaj as the Human Capital Committee continued to believe that his base salary was appropriate. Set forth below are the 2022 and 2023 base salaries for our NEOs:

Short-Term Incentive Plan

The STIP annual incentive award is designed to provide a cash reward for the achievement of corporate goals and individual accomplishments during each fiscal year. Individual STIP payouts are determined based on performance against pre-determined strategic corporate goals and individual performance. In 2023, the Human Capital Committee increased the CEO’s target bonus from 100% to 105% of base salary to better align with trends in the market. No other changes were made to the target STIP levels. Bonuses are capped at 200% of target for each executive.

For 2023, in response to shareholder feedback, the Human Capital Committee changed the design of the STIP to ensure that corporate performance is a greater factor in determining payout. Beginning in 2023, baseline

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funding of the STIP is determined entirely on corporate goal achievement with individual performance as a modifier. The STIP payout for 2023 was determined as follows:

Corporate Performance Goals. For 2023, the corporate performance goals for the company’s executives and the relative weights assigned to each were as follows with a maximum payout of 200% of target:

2023 STIP Corporate Performance Goals:

These corporate performance goals were structured to challenge and motivate executives and intended to align the executive team around a key set of company performance objectives. The goals further our long-term strategy to be a leading innovator, designer and developer of fundamental, horizontal technologies and to receive fair compensation from the companies that implement our patented innovations in their products and services across licensing programs. We want to grow our licensing revenue, grow and enhance our worldwide patent portfolio and execute on human capital initiatives. Our goal is to foster an environment where employees feel valued, respected and challenged in order to enable our workforce to continue to contribute to the company’s growth and sustained success.

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On February 1, 2024, the Chief Executive Officer reported to the Human Capital Committee on the final achievement of the strategic corporate goals and provided his assessment with respect to individual named executive officers’ performance for 2023. Actual achievement against each of these performance goals was determined at the conclusion of the fiscal year. The table below contains details of the achievement of each of the corporate strategic performance components of the STIP, along with the payout assigned to each component according to its level of achievement.

Personal Performance Component. The personal performance component of each NEO’s STIP award is based on pre-established criteria and evaluated by the Human Capital Committee at the end of the year. For the CEO, the Human Capital Committee considered the Board’s assessment of his performance, as reflected in the assessment by the non-executive Chairman of the Board.

For 2023, Mr. Chen was further assessed on performance of the strategic corporate goals as his personal achievement of the following:

For the other NEOs, the Human Capital Committee reviewed the performance assessments provided by Mr. Chen with respect to each executive’s individual performance and considered its own direct interactions with

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each NEO as well. The Human Capital Committee included the impact on achievement of the strategic corporate goals and how well such NEO’s department performed during the year with respect to the department’s goals/primary projects. After completing the evaluations, the Human Capital Committee determined that the personal performance achievement against objectives for each NEO employed by the Company at the end of 2023 was as follows:

STIP Payout Calculation. Using the formula presented above, the payout for each executive was based on both Corporate Achievement and Personal Performance. The following table lays out the calculations for each NEO employed by the Company at the end of 2023:

Long-Term Compensation Program

The LTCP is designed to align management’s interests with those of the company’s shareholders to maximize the value of the company’s stock over the long term and to enhance retention efforts by incentivizing executive officers to drive the company’s long-term strategic plan. It consists of three components:

2023 LTCP Grant

The Human Capital Committee determines annually the participation level and components of each executive officer’s LTCP award, considering market data and internal pay equity between the company’s NEOs

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and other executives to motivate and incentivize performance across the senior management team and encourage collaboration and shared responsibility for executing the company’s strategic plan. In response to shareholder feedback, for 2023, the mix between time-based RSUs and performance-based RSUs for the company’s NEOs and other executives, other than the CEO, was adjusted to 50% performance-based RSUs and 50% time-based RSUs. The Human Capital Committee approved LTCP awards granted on March 31, 2023, comprised of the following equity vehicles:

The table below shows the target award values for the 2023 LTCP grant for each of the NEOs:

2023 LTCP Time-based RSUs. Time-based RSUs granted to our NEOs in 2023 vest over three years, with one-third of the RSUs vesting and being delivered on or about each of the first three anniversaries of the grant date.

2023 LTCP Performance-Based RSUs and Options. The actual number of performance-based RSUs and performance-based options (the “Performance Awards”) from the 2023 LTCP that may vest is based on the achievement of pre-determined goal(s) set by the Human Capital Committee. The metric for the 2023 LTCP goal is pro forma EBITDA, which measures overall profitability of the company.

The Performance Awards may vest at the end of the three-year performance period (January 1, 2023, through December 31, 2025) based on specified threshold, target, and maximum levels of pro forma EBITDA measured quarterly, on a trailing four quarter basis during years two and three of the performance period. The highest trailing four quarters determines goal achievement. If the threshold level of achievement is not met, there is no payout. Achievement of the threshold performance level will result in a 50% payout. Goal achievement for performance that falls between the amounts established for threshold, target and maximum achievement above is calculated using linear straight-line interpolation between the target achievement level and the actual achievement level. The payout cannot exceed 200% of target.

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Status of Prior LTCP Grants:

2019 LTCP Grant: The 2019 LTCP performance-based RSUs had a five-year performance period (January 1, 2019 through December 31, 2023). The performance goals associated with the 2019 LTCP performance-based RSUs required a threshold achievement of $150 million pro forma EBITDA, defined for this grant as EBITDA adjusted to eliminate stock based compensation, intellectual property enforcement costs and other non-recurring and non-operating items after adjustments to bring revenue in line with Revenue Platform. If the pro forma EBITDA threshold is met, Revenue Platform is measured to determine payout.

After reviewing the company’s achievement of the applicable goals as of December 31, 2023, the Human Capital Committee determined that the company’s goal achievement for the 2019 cycle was below the threshold required for the vesting of any portion of the performance-based RSU awards. As a result, all performance-based RSUs granted under the 2019 LTCP were forfeited. The goals associated with the 2019 LTCP were as follows:

2021 LTCP Grant: The 2021 LTCP performance-based awards are earned based upon the achievement of pro forma EBITDA and Consumer Electronics Revenue Platform goals. Sixty percent of the target performance awards were eligible to vest at the end of a three-year performance period (January 1, 2021, through December 31, 2023) based on specified threshold, target, and maximum levels of pro forma EBITDA measured quarterly during years two and three of the performance period, on a trailing four quarter basis. The highest consecutive four quarters determines goal achievement. If the threshold level of achievement is not met, there is no payout. The pro forma EBITDA goal associated with the 2021 LTCP was as follows:

The Chief Executive Officer reported to the Human Capital Committee that the four-quarter period with the highest pro forma EBITDA during the measurement period was Q2 2022 through Q1 2023, in which period pro forma EBITDA was $371.3 million. The Human Capital Committee determined that the company’s goal achievement exceeded the superior performance goal and, as a result, 200% of the performance-based equity allocated to the pro forma EBITDA goal vested in March 2024. Pro forma EBITDA is a non-GAAP financial measure. See Appendix A for an explanation of how this metric is used and a detailed reconciliation to the most directly comparable GAAP measure.

The remaining portion of the Performance Awards granted under the 2021 LTCP cycle may vest based on the performance metric of Consumer Electronics Revenue Platform. We structured 40% of the 2021 LTCP as a set of milestones towards achieving our five-year goal for our Consumer Electronics Revenue Platform (such awards, “Milestone Awards”). For each of the four milestones that is achieved, 25% of the executives’ target Milestone Awards will vest. The Milestone Awards may vest at any time during the five-year performance period (January 1, 2021, through December 31, 2025), to the extent that one or more of the milestones are achieved. The Human Capital Committee determined that the second of these milestones was achieved in the third quarter of 2023, resulting in the vesting of 25% of target Milestone Awards in December 2023.

CEO New Hire Awards: The Human Capital Committee approved the award of performance-based RSUs and performance-based options (“New Hire Awards”) as part of Mr. Chen’s New Hire equity awards in 2021. The actual number of New Hire Awards that may vest is determined by the achievement of one of more of diversified revenue platform goals. The diversified revenue platform goals measure achievement of specified amounts of revenue platform using forecasted revenue for a twelve month look-forward period. Similar to the 2021 LTCP Milestone Awards, the New Hire Awards may vest at any time through December 31, 2025. The

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Human Capital Committee determined that the fifth Milestone was achieved in the third quarter of 2023 which drove a 60% payout of Mr. Chen’s New Hire Awards. One additional milestone remains eligible to vest. Total payout on the New Hire Awards cannot exceed 300% of target.

Other Practices, Policies and Guidelines

Stock Ownership Guidelines

To align the interests of our executive officers with those of our shareholders, the company has established stock ownership guidelines for its executive officers. The CEO’s target ownership level is the lesser of (i) the amount of company stock with a value of at least five times his current annual base salary or (ii) 65,000 shares. The company’s other executive officers are expected to own the lesser of (i) the amount of company stock with a value of at least two times their current annual base salary or (ii) 12,500 shares.

In May 2023, in order to ensure that the guidelines were meaningful, the Human Capital Committee amended the stock ownership guidelines to modify the definition of qualifying stock to include only shares of common stock (held outright or shares held through the company’s 401(k) Plan (as defined below)) and restricted stock. Unvested time-based RSUs, unearned performance-based RSUs and unexercised options do not count towards ownership guidelines. For purposes of calculating the value of company stock holdings, each share is priced at a price per share/unit equal to the average closing price of the company’s common stock for the 200 trading days leading up to and including the calculation date. The 200-day average closing price is calculated annually on the date of the company’s annual meeting of shareholders.

Any executive who has not reached or fails to maintain his or her target ownership level must retain at least 50% of any after-tax shares derived from vested RSUs or exercised options until his or her level is met. An executive may not make any disposition of shares that results in his or her holdings falling below the target level without the express approval of the Human Capital Committee. As of December 31, 2023, all of our executive officers were in compliance with the guidelines.

Clawback Policy

The company adopted a revised Clawback Policy, effective October 2, 2023, in compliance with applicable rules of Nasdaq and Section 10D and Rule 10D-1 of the Exchange Act. The policy requires the company to recover any incentive-based compensation from NEOs in the event of any accounting restatement as a result of the company’s material non-compliance with financial reporting requirements, to the extent that the incentive-based compensation exceeds the amount that the executive would have received based on the restated financial statements. The policy allows recoupment from certain other executives of the company. The Board delegated authority to the Human Capital Committee to oversee the policy’s administration.

Prohibition Against Hedging

The company’s insider trading policy prohibits directors, officers, employees and consultants of the company from engaging in any hedging transactions involving company stock.

Savings and Protection and Nonqualified Deferred Compensation Plans

The company’s Savings and Protection Plan (“401(k) Plan”) is a tax-qualified retirement savings plan pursuant to which employees, including NEOs, are able to contribute the lesser of 100% of their annual base salary and bonus or the annual limit prescribed by the Internal Revenue Service (“IRS”) on a pre-tax basis. The company provides a 50% matching contribution on the first 6% of an employee’s eligible earnings contributed to the 401(k) Plan, up to the cap mandated by the IRS. The company offers this benefit to encourage employees to save for retirement and to provide a tax-advantaged means for doing so.

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As noted above, the IRS imposes limits on the amounts that an employee may contribute annually to a 401(k) Plan account. The company’s nonqualified deferred compensation plan (the “Deferred Compensation Plan”) provides a select group of management and highly compensated employees, including the NEOs, with an opportunity to defer up to 40% of their base salary and up to 100% of their STIP payment. For 2023, the company matched up to 50% of the first 6% of the participant’s eligible deferrals, determined on a combined plan basis taking into account deferred amounts under both the Deferred Compensation Plan and the 401(k) Plan. Matching contributions are made once annually after the end of the year. Participants vest one-third in company matching contributions after one year of service, two-thirds after two years of service and fully after three years of service, a vesting schedule identical to the 401(k) Plan. For more information about the nonqualified deferred compensation plan, see “Nonqualified Deferred Compensation.”

Severance Arrangements with NEOs

In October 2018, the company adopted the InterDigital, Inc. Executive Severance and Change in Control Policy (the “Executive Severance Policy”), which had an initial term of three years and automatically renews for additional successive one-year periods thereafter (unless the company provides notice of non-renewal at least 30 days before the expiration of the term (as extended by any renewal period)). The policy applies to all NEOs except for Ms. Hakoranta, whose severance arrangements, in compliance with local law, are set forth in her employment agreement. Among other things, the Executive Severance Policy provides severance payments and benefits upon certain qualifying terminations of employment, including upon termination of the NEO’s employment by the company without Cause, and provides for enhanced payments and benefits if such termination occurs on or within one year after a Change in Control, each as defined in the Executive Severance Policy. Ms. Hakoranta’s employment agreement provides similar payments and benefits. For more information regarding the provisions governing these termination scenarios, please see “Potential Payments upon Termination or Change in Control.”

Compensation-Related Risk Assessment

We have assessed our employee compensation policies and practices and determined that any risks arising from our compensation policies and practices are not reasonably likely to have a material adverse effect on the company. In reaching this conclusion, the Human Capital Committee considered all components of our compensation program and assessed any associated risks. The Human Capital Committee also considered the various strategies and measures employed by the company that mitigate such risk, including: (i) the overall balance achieved through our use of a mix of cash and equity, annual and long-term incentives and time-and performance-based compensation; (ii) our use of multi-year vesting periods for equity grants; (iii) limits on the maximum goal achievement levels and overall payout amounts under STIP and LTCP awards; (iv) the company’s adoption of, and adherence to, various compliance programs, including the Code of Ethics, a clawback policy, a contract review and approval process and signature authority policy and a system of internal controls and procedures; and (v) the oversight exercised by the Human Capital Committee over the performance metrics and results under the STIP and the LTCP. In addition, our compensation programs are reviewed with the Human Capital Committee’s compensation consultant on an annual basis to ensure plans do not create incentives that would put the company at excessive risk. Most recently, FW Cook reviewed our compensation programs. Based on the assessment described above, the Human Capital Committee concluded that any risks associated with our compensation policies and practices were not reasonably likely to have a material adverse effect on the company.

Accounting for Share-Based Compensation

We follow FASB ASC Topic 718 for our share-based compensation awards. FASB ASC Topic 718 requires companies to measure the compensation expense for all share-based compensation awards made to employees and directors, including stock options and RSUs, based on the grant date “fair value” of these awards. This calculation is performed for accounting purposes and reported in the compensation tables below, even though our

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NEOs may never realize any value from their awards. FASB ASC Topic 718 also requires companies to recognize the compensation cost of their share-based compensation awards in their income statements over the period that an executive officer is required to render services in exchange for the option or other award.

Human Capital Committee Report

The Human Capital Committee has reviewed and discussed the Compensation Discussion and Analysis required by Item 402(b) of Regulation S-K with management and, based on its review and discussions, has recommended to the Board that the Compensation Discussion and Analysis be included in this proxy statement and the company’s Annual Report on Form 10-K.

HUMAN CAPITAL COMMITTEE:

Jean F. Rankin, Chair

Derek Aberle

S. Douglas Hutcheson

John D. Markley, Jr.

The foregoing Human Capital Committee report shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act and shall not otherwise be deemed filed under these acts, except to the extent specifically incorporated by reference.

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Summary Compensation Table

The following table contains information concerning compensation awarded to, earned by or paid to our NEOs in the last three years (unless the NEO was not an executive officer of the company during such year). Our NEOs consist of: (i) Liren Chen, our President and CEO; (ii) Richard J. Brezski, our CFO and Treasurer; (iii) Eeva K. Hakoranta, our Chief Licensing Officer; (iv) Rajesh Pankaj, our Chief Technology Officer; (v) Joshua D. Schmidt, our Chief Legal Officer and Corporate Secretary and (vi) Eric Cohen, former Chief Strategy and Growth Officer who ceased to be an executive officer of the company effective July 31, 2023. Additional information regarding the items reflected in each column follows the table.

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On March 31, 2023, the company granted performance-based RSU awards to its NEOs. As of that date, consistent with the estimates determined as of the respective grant dates under FASB ASC Topic 718, the probable outcome of the performance conditions for these grants was estimated at 50% achievement and as a result, the grant date fair value was 50% of target grant value. The following table sets forth the grant date fair value of the performance-based RSUs granted to the NEOs in 2023 assuming that the highest level of performance conditions will be achieved and the grants vest at their maximum level of 200% of target:

Assuming that the highest level of performance conditions will be achieved and the grant vests at its maximum level of 200% of target, the grant date fair value of the performance-based stock options granted to Mr. Chen in 2023 would be $3,000,000. The weighted-average assumptions underlying this valuation under the Black-Scholes option pricing model are as follows: expected term of 7.48 years; volatility of 32.80%; a risk-free interest rate of 3.55%; and a dividend yield of 1.92%.

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Grants of Plan-Based Awards in 2023

The following table summarizes the grants of (i) cash awards under the STIP and (ii) options (OPT), time-based RSU awards (TRSU) and performance-based RSU awards (PSU), each made to the NEOs during the year ended December 31, 2023. Each of these types of awards is discussed in “Compensation Discussion and Analysis” above.