RTW Investments, LP Reports 4.5% Stake in Beta Bionics, Inc. (BBNX) via Schedule 13G/A Filing

RTW Investments, LP and Roderick Wong, M.D. filed a Schedule 13G/A on May 15, 2026, reporting a position in Beta Bionics, Inc. (BBNX). As of the event date of March 31, 2026, the reporting persons beneficially own 2,000,000 shares of Common Stock, representing 4.5% of the company's outstanding shares. This filing marks an increase from the previously reported 0.0% ownership, indicating a new significant position. RTW Investments, a Delaware limited partnership, serves as the investment adviser to certain funds that directly hold the shares, while Dr. Wong serves as the Managing Partner and Chief Investment Officer. The reporting persons share voting and dispositive power over the reported shares. The shares were acquired in the ordinary course of business and not for the purpose of changing or influencing control of the issuer. The ownership percentage is based on 44,561,695 shares outstanding as of March 23, 2026.