SMITH MICRO SOFTWARE, INC.

Information Required to be Disclosed on Form 8-K for the Fiscal Quarter Ended December 31, 2025, But Not Reported.

None.

Insider Trading Policies and Procedures

We have adopted a statement of policy on insider trading (the “insider trading policy”) that describes our standards regarding the prohibition on trading, and causing the trading of securities while in possession of certain material nonpublic information, which we believe are reasonably designed to promote compliance with insider trading laws, rules and regulations, as well as any listing standards applicable to the Company (including Nasdaq listing standards). Our insider trading policy is applicable to all of our directors, officers and employees. The policy attempts to establish standards that will avoid even the appearance of improper transactions on the part of insiders to preserve the Company’s reputation for adhering to the highest standards of conduct.

The insider trading policy, among other things, prohibits trading in Company securities or “tipping” on the basis of or while in possession of material nonpublic information about the Company. These guidelines also provide certain specific exceptions for various transactions including, for example, (i) stock option exercises whereno sale is made, (ii) the vesting of restricted stock awards or tax withholding requirements in connection therewith, (iii) bona fide gifts of securities, and (iv) Rule10b5-1 plans. The insider trading policy further restricts trading and other transactions by our directors, officers and employees during certain “blackout periods” that follow the end of a given fiscal period.

Our insider trading policy further acknowledges that short sales, buying or selling publicly traded options, hedging transactions in the Company’s stock, margin accounts, and pledged securities* maypermit a holder to continue to own our common stock obtained through benefit plans or otherwise, but without the full risks and rewards of ownership. When that occurs, those participating in such transactions may**no* longer have the same objectives as our other stockholders. As such, the Company’s directors, officers and employees are prohibited from engaging in such transactions (except as otherwise* may*be approved in writing by the Company).

A copy of the Smith Micro Software, Inc. insider trading policy is filed as Exhibit19.1 to this Report.

Trading Arrangements

During thefourth quarter ended* December 31, 2025*,no director or officer of the Company adopted or terminated any “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item408(a) of Regulation S-K.”