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 September 30, 2026 and to date, no material events occurred with respect to our legal proceedings, except for the following:(1) on July 1, 2026, we dismissed without prejudice our patent infringement case against Jump Trading, LLC (“Jump”). Depending upon future developments in the industry or otherwise, we may decide to revisit potential IP causes of action against Jump in order to protect our intellectual property rights(see Note J[3] to our unaudited condensed consolidated financial statements included herein) and (2) on October 5, 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 five Inter Partes Review proceedings requested by the Optiver defendants relating to five patents within our HFT Patent Portfolio which are not currently being asserted in the litigation by us.