Company: IDCC
Filing Date: 2025-06-18
Form Type: 11-K
Source: 0001405495-25-000034
Chunk: 5

Company: InterDigital, Inc.
Filing Date: 2025-06-18
Form: 11-K
Chunk 5
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 (the “Plan”) is provided for general information purposes. Plan participants should refer to the Plan document and Summary Plan Description for a more complete description of the Plan's provisions.

#### General
The Plan is a defined contribution 401(k) plan of InterDigital, Inc. and its participating subsidiaries (the “Company” or “InterDigital”) for its eligible employees. An eligible employee will be eligible to participate in the Plan in the next payroll period, or as soon as administratively possible, following the date the eligible employee attained age 18 and completed one month of service with the Company.

The following individuals are not eligible to participate in the Plan: (i) part-time, temporary or seasonal employees with less than 1,000 hours of service; (ii) employees covered by collective bargaining agreements; (iii) leased employees within the meaning of IRC Sections 414(n)(2) and 414(o)(2); (iv) nonresident aliens who receive no earned income that constituted income from sources within the United States; and (v) employees of an affiliate of the Company that has not affirmatively adopted the Plan.

The Plan was established effective February 1, 1985. Most recently, the Plan was amended and restated as part of the adoption of the Transamerica Retirement Solutions, LLC ("Transamerica") Non-Standardized Pre-Approved Profit Sharing Plan effective January 1, 2022. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”). State Street Bank & Trust Company is the trustee of the Plan and custodian of plan assets. Transamerica is the third-party administrator of the Plan's assets.

#### Contributions
Participant contributions are made on a pre-tax basis and/or an after-tax basis. Each participant may invest from 1% to 100% of eligible compensation as a basic contribution subject to state, local, and certain Federal taxes. The total earnings contributions cannot exceed Internal Revenue Service (“IRS”) limitations for each Plan year. In the 2024 and 2023 Plan years, such limit was $23,000 and $22,500, respectively. Participants who have attained the age of 50 before the end of the Plan year are eligible to make catch-up contributions. In both 2024 and 2023, the maximum additional annual contribution was $7,500. If a participant's annual contributions exceed the dollar limitation set by the IRS, thereby requiring a distribution of such excess contributions, the participant will