Letter of Amendment dated

September 11, 2023

Nant Capital, LLC

450 Duley Road

El Segundo, California 90245

Attn: Robert Morse, Chief Financial Officer

Dear Nant Capital, LLC:

Reference is made to the Promissory Note issued by ImmunityBio, Inc., a Delaware corporation (the “Company”) to Nant Capital, LLC, a Delaware limited liability company (the “Holder”) dated August 31, 2022 in the stated principal amount of $125,000,000 (as amended from time to time, the “Note”). Capitalized terms used but not defined herein are used as defined in the Note.

This letter amendment confirms our mutual agreement that:

1.The first paragraph of the Note is hereby amended by replacing the phrase “December 31, 2023 (the “Maturity Date”)” therein with the phrase “December 31, 2024 (the “Maturity Date”)”.

Except as expressly set forth herein, the provisions of the Note shall remain unchanged and in full force and effect and the parties hereto hereby ratify and reaffirm each and every term, covenant and condition set forth in the Note as of the date hereof, as amended by this letter amendment.

THIS LETTER AMENDMENT SHALL BE GOVERNED BY THE LAW OF THE STATE OF CALIFORNIA (WITHOUT GIVING EFFECT TO THE CONFLICT OF LAW PRINCIPLES THAT WOULD RESULT IN THE APPLICATION OF THE LAW OF A DIFFERENT JURISDICTION).

This letter amendment shall be binding upon and shall inure to the benefit of the parties hereto and their respective successors and assigns. This letter amendment and the Note constitute the entire agreement among the parties hereto relating to the subject matter hereof and thereof and supersede any and all previous discussions, correspondence, agreements and other understandings, whether oral or written, relating to the subject matter hereof or thereof. This letter amendment may be executed in any number of counterparts, each of which shall be deemed to be an original and shall be binding upon all parties hereto, and their successors and assigns. Any signatures delivered by a party hereto by facsimile transmission or by electronic transmission shall be deemed an original signature hereto.

Please indicate your agreement to the foregoing by signing in the space indicated below.

Thank you.

Sincerely,

Please indicate your agreement to the foregoing by signing in the space indicated below.

Thank you.

Sincerely,