X0306 4 2022-11-15 0 0001405495 InterDigital, Inc. IDCC 0001889993 Schmidt Joshua D. 200 BELLEVUE PARKWAY SUITE 300 WILMINGTON DE 19809 0 1 0 0 CLO & Corp Sec Common Stock 2022-11-15 4 F 0 450 50.49 D 13011.7647 D Common Stock 2022-11-15 4 D 0 0.1269 50.49 D 13011.6378 D The transaction reported reflects the withholding of restricted stock units in satisfaction of the reporting person's tax liability. The restricted stock units were granted to the reporting person on November 15, 2021 pursuant to the company's 2017 Equity Incentive Plan in accordance with the company's long-term compensation program and vested on November 15, 2022, together with accrued dividend equivalents. The transaction reported reflects the cash settlement of fractional shares in connection with the vesting of restricted stock units, as described in Note 1. /s/ Ariel E. Greenstein, Attorney-in-Fact for Joshua D. Schmidt 2022-11-17