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THIS AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT (this “Amendment”) is dated as of February 19, 2026 and to be effective as of December 31, 2025, by and among Maravai LifeSciences Holdings, Inc., a Delaware corporation (“Parent”), Maravai Intermediate Holdings, LLC, a Delaware limited liability company (“Employer”), and Bernd Brust (“Executive”).

WHEREAS, Parent, Employer and Executive are parties to that certain Employment Agreement dated as of June 8, 2025 (the “Employment Agreement”); and

WHEREAS, the parties desire to amend the Employment Agreement to permit Executive to continue to reside in Dallas, Texas rather than relocate, as set forth in this Amendment.

NOW, THEREFORE, in consideration of the mutual covenants contained herein and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties to this Amendment hereby agree as follows:

1.Definitions. Capitalized terms not otherwise defined in this Amendment shall have the meaning given to them in the Employment Agreement.

2.Amendment and Restatement of Section 1(a)(iii). Section 1(a)(iii) of the Employment Agreement is hereby amended and restated as follows:

(i)Executive’s principal place of work shall be his residence in Dallas, Texas; provided, that Executive shall travel as reasonably necessary to fulfill the duties of his employment. Notwithstanding the foregoing, in the event the Board later relocates Executive’s principal place of work to San Diego, California, such relocation shall not constitute grounds for Executive to terminate his employment for Good Reason.

3.Amendment and Restatement of Section 1(d). Section 1(d) of the Employment Agreement is hereby amended and restated as follows:

(a)Private Air Travel. For so long as Parent maintains access to private aircraft, Parent shall make available to Executive private aircraft to use in accordance with its Use of Corporate Aircraft Policy.

4.Agreement in Effect. The Employment Agreement is amended in order to reflect the agreements set forth in this Amendment. Except as modified by this Amendment, all other terms and conditions of the Employment Agreement shall be unchanged and shall remain in full force and effect. In the event of any conflict between the terms of this Amendment and the Employment Agreement, the terms of this Amendment shall control.

IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date first above written.