Insider Transaction Report for InterDigital, Inc.

On September 15, 2026, Julia C. Mattis, Chief Licensing Officer of InterDigital, Inc., reported a disposition of 325 shares of Common Stock, valued at $340.38 per share, as part of a tax withholding for restricted stock units granted on September 15, 2024. These units vested on September 15, 2026. Additionally, a transaction for 0.8225 shares was reported as a cash settlement of fractional shares related to the same vesting event. Following these transactions, Mattis directly owns 11,236.2977 shares of InterDigital, Inc. Common Stock. The report was signed by Ariel E. Greenstein, Attorney-in-Fact for Julia C. Mattis, on September 17, 2026.