Material Agreement (Form 8-K)

Item 1.01 Entry into a Material Definitive Agreement.

On September 30, 2025, Aditxt, Inc. (the "Company") entered into an offer letter with Christopher J. Porcelli to serve as General Counsel, Chief People Officer and Corporate Secretary of the Company, effective September 30, 2025. The offer letter provides for, among other things, (i) an annual base salary of $350,000, (ii) at-will employment and eligibility to participate in the Company's employee benefit plans generally available to senior executives, and (iii) an initial equity award under the Company's equity incentive plan, subject to approval by the Compensation Committee, which is expected to vest over three years, subject to continued service.

The foregoing description of the offer letter does not purport to be complete and is qualified in its entirety by reference to the offer letter, a copy of which the Company intends to file as an exhibit to its next periodic report.