SMITH WILLIAM W JR → SMITH MICRO SOFTWARE, INC. SMSI

Item 4 of the Schedule is hereby amended to add the following: As noted in the Explanatory Note, on March 10, 2026 the Smith Living Trust purchased for investment purposes a common stock purchase warrant exercisable for 1,763,651 shares of Common Stock and a convertible note, the principal of which may be converted into 1,348,675 shares of Common Stock, which in each case as a result of the passage of time has become exercisable or convertible within 60 days. Under the terms of this convertible note and this warrant, the Smith Living Trust may not convert the convertible note or exercise any portion of this warrant to the extent such conversion or exercise (as the case may be) would cause the Reporting Person to beneficially own more than 49.99% of the Issuer's outstanding Common Stock immediately after giving effect to the issuance of shares of Common Stock issuable upon conversion of such convertible note or upon exercise of such warrant (as the case may be).