X0306 4 2017-03-15 0 0001405495 InterDigital, Inc. IDCC 0001231579 BREZSKI RICHARD 200 BELLEVUE PARKWAY SUITE 300 WILMINGTON DE 19809 0 1 0 0 Chief Financial Officer Common Stock 2017-03-15 4 F 0 2897 85.45 D 17699.8531 D Common Stock 2017-03-15 4 D 0 0.2045 85.45 D 17699.6486 D Common Stock 2017-03-15 4 A 0 23870.7264 0.00 A 41570.375 D Common Stock 2017-03-15 4 F 0 10134 85.45 D 31436.375 D Common Stock 2017-03-15 4 D 0 0.7264 85.45 D 31435.6486 D Common Stock 1742 I By 401(k) Plan 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 March 15, 2014 pursuant to the company's 2009 Stock Incentive Plan in accordance with the company's Long-Term Compensation Program and vested on March 15, 2017, together with accrued dividend equivalents. The transaction reported reflects the cash settlement of a fractional share in connection with the vesting of restricted stock units, as described in Note 1. The transaction reported represents the vesting of an award of performance-based restricted stock units granted to the reporting person on March 15, 2014 pursuant to the company's 2009 Stock Incentive Plan in accordance with the 2014-2016 cycle under the company's Long-Term Compensation Program. Based on the achievement level of the 2014-2016 cycle performance goal, 200% of the reporting person's target performance-based restricted stock unit award, or 22,810 restricted stock units, vested on March 15, 2017, together with 1,060.7264 additional shares representing accrued dividend equivalent units. The transaction reported reflects the withholding of restricted stock units in satisfaction of the reporting person's tax liability in connection with the transaction described in Note 3. The transaction reported reflects the cash settlement of a fractional share in connection with the vesting of restricted stock units, as described in Note 3. As of the most recently published account statement, the reporting person beneficially owned this number of whole shares of common stock pursuant to the InterDigital Savings and Protection Plan. /s/ Claire H. Hanna, Attorney-in-Fact for Richard J. Brezski 2017-03-17