NETWORK-1 TECHNOLOGIES, INC.

For a description of our legal proceedings see Note J to our unaudited condensed consolidated financial statements included in this Quarterly Report and Item 3. Legal Proceedings of our Annual Report on Form 10-K for the year ended December 31, 2025 (filed with the SEC on March 13, 2026). During the three months ended March 31, 2026 and to date, no material events occurred with respect to our legal proceedings, except for the following: (1) On April 23, 2026, the U.S. Court of Appeals for the Federal Circuit issued a decision on our appeal overturning the judgment of non-infringement of the U.S District Court for the Southern District of New York relating to our Patent No. 8,205,237 (the “’237 Patent”), part of our Cox Patent Portfolio, for certain implementations of Google’s Content ID system. The Federal Circuit also affirmed the District Court’s judgement that (i) certain claims in our other asserted patents were invalid, and (ii) a previous implementation of Content ID does not infringe the claims of the ’237 Patent. The Federal Circuit remanded the case to the District Court for further proceedings on the infringement case consistent with its decision (see Note J[4] to our unaudited condensed consolidated financial statements included herein), and (2) In April and May 2026, the U.S. Patent Trial and Appeal Board (PTAB) of the U.S. Patent and Trademark Office denied the institution, on the merits, of six Inter Partes review proceedings requested by Samsung relating to all six patents being asserted by us in our patent litigation against Samsung (see Note J[4] to our unaudited condensed consolidated financial statements included herein).