X0306 4 2018-03-01 0 0001405495 InterDigital, Inc. IDCC 0001223761 HUTCHESON STEWART D 200 BELLEVUE PARKWAY SUITE 300 WILMINGTON DE 19809 1 0 0 0 Common Stock 2018-03-01 4 D 0 0.8481 71.00 D 11456.565 D Common Stock 2018-03-02 4 S 0 272 70.20 D 11184.565 D The transaction reported reflects the cash settlement of a fractional share in connection with the settlement of restricted stock units. The restricted stock units were granted to the reporting person on June 8, 2016, in accordance with the company's compensation program for non-management directors, and vested in full on June 8, 2017. The settlement of such restricted stock unit award was deferred, with the settlement to occur in three equal installments, together with accrued dividend equivalents, on March 1, 2018, March 1, 2019 and March 1, 2020, respectively. The transaction reported was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person to satisfy tax obligations upon the settlement of restricted stock units, as described in Note (1). /s/ Claire H. Hanna, Attorney-in-Fact for S. Douglas Hutcheson 2018-03-05