X0407 4 2023-06-07 0 0001405495 InterDigital, Inc. IDCC 0001491492 Markley John D. Jr. 200 BELLEVUE PARKWAY SUITE 300 WILMINGTON DE 19809 1 0 0 0 0 Common Stock 2023-06-07 4 S 0 1100 86.17 D 9004.9799 D Common Stock 2023-06-07 4 A 0 2162 0.00 A 11166.9799 D The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. An annual award of restricted stock units granted pursuant to the company's 2017 Equity Incentive Plan in accordance with the company's compensation program for non-management directors. /s/ Amy A. Miraglia, Attorney-in-Fact for John D. Markley, Jr. 2023-06-09