InterDigital (IDCC) investor relations material

Executive summary

• The annual meeting will be held virtually on June 10, 2026, with shareholders voting on director elections, a bylaws amendment for officer exculpation, executive compensation, and auditor ratification.

• Shareholders of record as of April 15, 2026, are entitled to vote, with each share carrying one vote per proposal.

• Proxy materials are primarily distributed electronically to expedite delivery, reduce costs, and conserve resources.

Voting matters and shareholder proposals

• Proposals include electing eight directors for one-year terms, amending bylaws for officer exculpation, an advisory vote on executive compensation, and ratifying PricewaterhouseCoopers LLP as auditor.

• The board recommends voting in favor of all proposals.

• Shareholder proposals for the 2027 meeting must be submitted by December 25, 2026, to be considered for inclusion.

Board of directors and corporate governance

• The board consists of eight directors, all elected annually, with a majority being independent.

• The chairman is an independent director, and board leadership is separated from the CEO role.

• Four standing committees: Audit, Human Capital, Finance, and Nominating and Corporate Governance, all with independent members.

• Annual board and committee self-evaluations are conducted, with periodic third-party assessments.

• Shareholders can communicate directly with the board via mail or email.