X0202 SCHEDULE 13G/A 0001812276 XXXXXXXX LIVE 2 Common Stock 03/31/2026 0001674632 Beta Bionics, Inc. 08659B102 11 Hughes Irvine CA 92618 Rule 13d-1(c) Soleus Private Equity Fund II, L.P. DE 0.00 1703961.00 0.00 1703961.00 1703961.00 N 3.8 PN (1) The shares reported in the table above are held directly by Soleus Private Equity Fund II, L.P. ("Soleus PE"). Soleus Private Equity GP II, LLC ("Soleus PE GP") is the sole general partner of Soleus PE, Soleus PE GP II, LLC is the sole manager of Soleus PE GP, Soleus Capital Management, L.P. ("SCM ") is the investment manager for Soleus PE and for Soleus Capital Master Fund, L.P. ("Master Fund"), and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of Soleus PE GP II, LLC and of Soleus GP, LLC. Each of Mr. Levy, Soleus PE GP II, LLC, Soleus PE GP, SCM and Soleus GP, LLC disclaims beneficial ownership of these shares held by Soleus PE other than for the purpose of determining their obligations under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose. (2) The percentage listed in row 11 is calculated based upon 44,561,695 shares of the common stock of Beta Bionics, Inc. (the "Issuer") outstanding as of April 16, 2026, as set forth on the cover of the Issuer's Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2026 that was filed with the Securities and Exchange Commission on April 21, 2026 (the "Form 10-Q"). Soleus Private Equity GP II, LLC DE 0.00 1703961.00 0.00 1703961.00 1703961.00 N 3.8 OO (1) The shares reported in the table above are held directly by Soleus PE. Soleus PE GP is the sole general partner of Soleus PE, Soleus PE GP II, LLC is the sole manager of Soleus PE GP, SCM is the investment manager for Soleus PE and for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of Soleus PE GP II, LLC and of Soleus GP, LLC. Each of Mr. Levy, Soleus PE GP II, LLC, Soleus PE GP, SCM and Soleus GP, LLC disclaims beneficial ownership of these shares held by Soleus PE other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose. (2) The percentage listed in row 11 is calculated based upon 44,561,695 shares of common stock of the Issuer outstanding as of April 16, 2026, as set forth on the cover of the Form 10-Q. Soleus PE GP II, LLC DE 0.00 1703961.00 0.00 1703961.00 1703961.00 N 3.8 OO (1) The shares reported in the table above are held directly by Soleus PE. Soleus PE GP is the sole general partner of Soleus PE, Soleus PE GP II, LLC is the sole manager of Soleus PE GP, SCM is the investment manager for Soleus PE and for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of Soleus PE GP II, LLC and of Soleus GP, LLC. Each of Mr. Levy, Soleus PE GP II, LLC, Soleus PE GP, SCM and Soleus GP, LLC disclaims beneficial ownership of these shares held by Soleus PE other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose. (2) The percentage listed in row 11 is calculated based upon 44,561,695 shares of common stock of the Issuer outstanding as of April 16, 2026, as set forth on the cover of the Form 10-Q. Soleus Capital Master Fund, L.P. E9 0.00 2619753.00 0.00 2619753.00 2619753.00 N 5.9 FI (1) The shares reported in the table above are held directly by Master Fund. Soleus Capital, LLC is the sole general partner of Master Fund, Soleus Capital Group, LLC ("SCG") is the sole managing member of Soleus Capital, LLC, SCM is the investment manager for Soleus PE and for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of SCG and of Soleus GP, LLC. Each of SCG, Soleus Capital, LLC, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held by Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose. (2) The percentage listed in row 11 is calculated based upon 44,561,695 shares of common stock of the Issuer outstanding as of April 16, 2026, as set forth on the cover of the Form 10-Q. Soleus Capital, LLC DE 0.00 2619753.00 0.00 2619753.00 2619753.00 N 5.9 OO (1) The shares reported in the table above are held directly by Master Fund. Soleus Capital, LLC is the sole general partner of Master Fund, SCG is the sole managing member of Soleus Capital, LLC, SCM is the investment manager for Soleus PE and for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of SCG and of Soleus GP, LLC. Each of SCG, Soleus Capital, LLC, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held by Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose. (2) The percentage listed in row 11 is calculated based upon 44,561,695 shares of common stock of the Issuer outstanding as of April 16, 2026, as set forth on the cover of the Form 10-Q. Soleus Capital Group, LLC DE 0.00 2619753.00 0.00 2619753.00 2619753.00 N 5.9 OO (1) The shares reported in the table above are held directly by Master Fund. Soleus Capital, LLC is the sole general partner of Master Fund, SCG is the sole managing member of Soleus Capital, LLC, SCM is the investment manager for Soleus PE and for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of SCG and of Soleus GP, LLC. Each of SCG, Soleus Capital, LLC, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held by Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose. (2) The percentage listed in row 11 is calculated based upon 44,561,695 shares of common stock of the Issuer outstanding as of April 16, 2026, as set forth on the cover of the Form 10-Q. Soleus Capital Management, L.P. DE 0.00 4323714.00 0.00 4323714.00 4323714.00 N 9.7 PN (1) The shares reported in the table above are held directly by Soleus PE and by Master Fund. Soleus PE GP is the sole general partner of Soleus PE, Soleus PE GP II, LLC is the sole manager of Soleus PE GP, SCM is the investment manager for Soleus PE, and Soleus GP, LLC is the sole general partner of SCM. Soleus Capital, LLC is the sole general partner of Master Fund, SCG is the sole managing member of Soleus Capital, LLC, SCM is the investment manager for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of Soleus PE GP II, LLC, SCG and Soleus GP, LLC. Each of Soleus PE GP, Soleus PE GP II, LLC, Soleus Capital, LLC, SCG, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held directly by Soleus PE and Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose. (2) The percentage listed in row 11 is calculated based upon 44,561,695 shares of common stock of the Issuer outstanding as of April 16, 2026, as set forth on the cover of the Form 10-Q. Soleus GP, LLC DE 0.00 4323714.00 0.00 4323714.00 4323714.00 N 9.7 OO (1) The shares reported in the table above are held directly by Soleus PE and by Master Fund. Soleus PE GP is the sole general partner of Soleus PE, Soleus PE GP II, LLC is the sole manager of Soleus PE GP, SCM is the investment manager for Soleus PE, and Soleus GP, LLC is the sole general partner of SCM. Soleus Capital, LLC is the sole general partner of Master Fund, SCG is the sole managing member of Soleus Capital, LLC, SCM is the investment manager for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of Soleus PE GP II, LLC, SCG and Soleus GP, LLC. Each of Soleus PE GP, Soleus PE GP II, LLC, Soleus Capital, LLC, SCG, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held directly by Soleus PE and Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose. (2) The percentage listed in row 11 is calculated based upon 44,561,695 shares of common stock of the Issuer outstanding as of April 16, 2026, as set forth on the cover of the Form 10-Q. Levy Guy X1 30787.00 4323714.00 30787.00 4323714.00 4354501.00 N 9.8 IN (1) The shares reported in the table above are held directly by Soleus PE and by Master Fund. Soleus PE GP is the sole general partner of Soleus PE, Soleus PE GP II, LLC is the sole manager of Soleus PE GP, SCM is the investment manager for Soleus PE, and Soleus GP, LLC is the sole general partner of SCM. Soleus Capital, LLC is the sole general partner of Master Fund, SCG is the sole managing member of Soleus Capital, LLC, SCM is the investment manager for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of Soleus PE GP II, LLC, SCG and Soleus GP, LLC. Each of Soleus PE GP, Soleus PE GP II, LLC, Soleus Capital, LLC, SCG, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held directly by Soleus PE and Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose. (2) The percentage listed in row 11 is calculated based upon 44,561,695 shares of common stock of the Issuer outstanding as of April 16, 2026, as set forth on the cover of the Form 10-Q. Beta Bionics, Inc. 11 Hughes, Irvine, California 92618 The information in rows 5 through 9 and 11 on the cover pages to this Schedule 13G, including the footnotes thereto, which reflects beneficial ownership of the Common Stock of the Issuer as of Mach 31, 2026, is hereby incorporated by reference. Soleus Private Equity Fund II, L.P. - 1,703,961 Soleus Private Equity GP II, LLC - 1,703,961 Soleus PE GP II, LLC - 1,703,961 Soleus Capital Master Fund, L.P. - 2,619,753 Soleus Capital, LLC - 2,619,753 Soleus Capital Group, LLC - 2,619,753 Soleus Capital Management, L.P. - 4,323,714 Soleus GP, LLC - 4,323,714 Guy Levy - 4,354,501 Soleus Private Equity Fund II, L.P. 100 Field Point Road, Suite 200 Greenwich, CT 06830 Soleus Private Equity GP II, LLC 100 Field Point Road, Suite 200 Greenwich, CT 06830 Soleus PE GP II, LLC 100 Field Point Road, Suite 200 Greenwich, CT 06830 Soleus Capital Master Fund, L.P. 100 Field Point Road, Suite 200 Greenwich, CT 06830 Soleus Capital, LLC 100 Field Point Road, Suite 200 Greenwich, CT 06830 Soleus Capital Group, LLC 100 Field Point Road, Suite 200 Greenwich, CT 06830 Soleus Capital Management, L.P. 100 Field Point Road, Suite 200 Greenwich, CT 06830 Soleus GP, LLC 100 Field Point Road, Suite 200 Greenwich, CT 06830 Guy Levy c/o Soleus Capital Management, L.P. 100 Field Point Road, Suite 200 Greenwich, CT 06830 Soleus Private Equity Fund II, L.P. - Delaware Soleus Private Equity GP II, LLC - Delaware Soleus PE GP II, LLC - Delaware Soleus Capital Master Fund, L.P. - Cayman Islands Soleus Capital, LLC - Delaware Soleus Capital Group, LLC - Delaware Soleus Capital Management, L.P. - Delaware Soleus GP, LLC - Delaware Guy Levy - United States The information in rows 5 through 9 and 11 on the cover pages to this Schedule 13G, including the footnotes thereto, which reflects beneficial ownership of the Common Stock of the Issuer, is hereby incorporated by reference. Soleus Private Equity Fund II, L.P. - 1,703,961 Soleus Private Equity GP II, LLC - 1,703,961 Soleus PE GP II, LLC - 1,703,961 Soleus Capital Master Fund, L.P. - 2,619,753 Soleus Capital, LLC - 2,619,753 Soleus Capital Group, LLC - 2,619,753 Soleus Capital Management, L.P. - 4,323,714 Soleus GP, LLC - 4,323,714 Guy Levy - 4,354,501 Soleus Private Equity Fund II, L.P. - 3.8% Soleus Private Equity GP II, LLC - 3.8% Soleus PE GP II, LLC - 3.8% Soleus Capital Master Fund, L.P. - 5.9% Soleus Capital, LLC - 5.9% Soleus Capital Group, LLC - 5.9% Soleus Capital Management, L.P. - 9.7% Soleus GP, LLC - 9.7% Guy Levy - 9.8% Guy Levy - 30,787 Soleus Private Equity Fund II, L.P. - 1,703,961 Soleus Private Equity GP II, LLC - 1,703,961 Soleus PE GP II, LLC - 1,703,961 Soleus Capital Master Fund, L.P. - 2,619,753 Soleus Capital, LLC - 2,619,753 Soleus Capital Group, LLC - 2,619,753 Soleus Capital Management, L.P. - 4,323,714 Soleus GP, LLC - 4,323,714 Guy Levy - 4,323,714 Guy Levy - 30-787 Soleus Private Equity Fund II, L.P. - 1,703,961 Soleus Private Equity GP II, LLC - 1,703,961 Soleus PE GP II, LLC - 1,703,961 Soleus Capital Master Fund, L.P. - 2,619,753 Soleus Capital, LLC - 2,619,753 Soleus Capital Group, LLC - 2,619,753 Soleus Capital Management, L.P. - 4,323,714 Soleus GP, LLC - 4,323,714 Guy Levy - 4,323,714 Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Soleus Private Equity Fund II, L.P. /s/ Guy Levy 05/08/2026 Soleus Private Equity GP II, LLC /s/ Guy Levy 05/08/2026 Soleus PE GP II, LLC /s/ Guy Levy 05/08/2026 Soleus Capital Master Fund, L.P. /s/ Guy Levy 05/08/2026 Soleus Capital, LLC /s/ Guy Levy 05/08/2026 Soleus Capital Group, LLC /s/ Guy Levy 05/08/2026 Soleus Capital Management, L.P. /s/ Guy Levy 05/08/2026 Soleus GP, LLC /s/ Guy Levy 05/08/2026 Levy Guy /s/ Guy Levy 05/08/2026