Amendment to Schedule 13D Filing for SOCKET MOBILE, INC.

This filing is an amendment to a Schedule 13D, primarily concerning the ownership of SOCKET MOBILE, INC. common stock by Charlie Bass. As of March 31, 2026, Charlie Bass beneficially owns 5,030,216 shares, representing 43.6% of the outstanding stock. This ownership includes shares held directly by the Bass Trust, shares issuable upon conversion of several convertible notes (2020, 2023, 2024, 2025, and 2026 notes), and shares issuable from stock options. The amendment details recent open market purchases made by the Bass Trust between November 2025 and February 2026, as well as stock grants and options. Notably, on March 27, 2026, the Bass Trust purchased a $400,000 convertible subordinated secured promissory note (the "2026 Note") from the Issuer, convertible into up to 444,444 shares of common stock. All acquisitions are stated to be for investment purposes, with no current plans for actions described in Item 4 of Schedule 13D instructions.