X0609 4 2026-04-22 0 0001405495 InterDigital, Inc. IDCC 0001889993 Schmidt Joshua D. false 200 BELLEVUE PARKWAY SUITE 300 WILMINGTON DE 19809 0 1 0 0 CLO & Corp Secretary 0 Common Stock 2026-04-22 4 A 0 18.3927 0 A 30047.6205 D Restricted stock units received pursuant to dividend equivalents credited on unvested restricted stock units previously granted to the reporting person. Dividend equivalents accrue with respect to unvested restricted stock units when and as cash dividends are paid on InterDigital, Inc.'s common stock. /s/ Ariel E. Greenstein, Attorney-in-Fact for Joshua D. Schmidt 2026-04-24