Form 4 Filing for Mattis Julia C - InterDigital, Inc.

This SEC filing details a transaction by Julia C. Mattis, Chief Licensing Officer of InterDigital, Inc. On July 22, 2026, Ms. Mattis acquired 23.8111 shares of common stock through a dividend equivalent reinvestment, as indicated by transaction code "A" and acquisition code "A". These shares were received as part of restricted stock units previously granted. The transaction resulted in a post-transaction shareholding of 11562.1202 shares. The filing was signed on July 24, 2026, by Ariel E. Greenstein, acting as Attorney-in-Fact for Ms. Mattis. The shares acquired are noted to be directly owned. The footnote F1 clarifies that the dividend equivalents accrue on unvested restricted stock units when dividends are paid on the company's common stock.