X0306 4 2020-01-17 0 0001405495 InterDigital, Inc. IDCC 0001193182 MERRITT WILLIAM J 200 BELLEVUE PARKWAY SUITE 300 WILMINGTON DE 19809 1 1 0 0 President and CEO Common Stock 2020-01-17 4 M 0 22085 44.19 A 189739.2935 D Common Stock 2020-01-17 4 F 0 18175 59.78 D 171564.2935 D Common Stock 3163 I By 401(k) Plan Employee Stock Option (Right to Buy) 44.19 2020-01-17 4 M 0 22085 0.00 D 2020-01-18 Common Stock 22085 0 D Represents a "net exercise" of outstanding stock option. The reporting person received 3,910 shares of common stock on net exercise of option to purchase 22,085 shares of common stock. The Company withheld 18,175 shares of common stock underlying the option for payment of the exercise price and tax withholdings using a stock price on January 17, 2020 of $59.78. 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. The stock option vested as follows: 7,361 on January 18, 2014; 7,362 on January 18, 2015; and 7,362 on January 18, 2016. /s/ Amy A. Miraglia, Attorney-in-Fact for William J. Merritt 2020-01-22