Form 3 Filing and Power of Attorney for Francis X. Brown III

This filing details a Form 3 Initial Statement of Beneficial Ownership for Francis X. Brown III, an officer of Neuronetics, Inc. (STIM). Following the transaction, Mr. Brown beneficially owns 19,968 shares of the company's Common Stock. The filing also includes an accompanying Power of Attorney document, dated April 29, 2026, granting specific individuals the authority to execute Section 16 filings (Forms 3, 4, and 5) on behalf of Mr. Brown. This Power of Attorney remains in effect until Mr. Brown is no longer subject to such filing requirements or until it is revoked.