Agreement to Extend Maturity Date and Amend Terms of Convertible Note Sample Contracts

AGREEMENT TO EXTEND MATURITY DATE AND AMEND TERMS OF CONVERTIBLE NOTE
Agreement to Extend Maturity Date and Amend Terms of Convertible Note • October 6th, 2025 • Aptorum Group LTD • Measuring & controlling devices, nec

This Agreement (the “Agreement”) is entered into as of 11 September 2025 by and between Aptorum Group Limited (“Issuer” or “Company”), a company incorporated under the laws of Cayman Island, and Jurchen Investment Corporation (“Investor”).