X0609 4 2026-04-22 0 0001405495 InterDigital, Inc. IDCC 0001231579 BREZSKI RICHARD false 200 BELLEVUE PARKWAY SUITE 300 WILMINGTON DE 19809 0 1 0 0 Chief Financial Officer 0 Common Stock 2026-04-22 4 A 0 24.8243 0 A 82872.8881 D Common Stock 1958 I By 401k Plan 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. 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/ Amy A. Miraglia, Attorney-in-Fact for Richard J. Brezski 2026-04-24