X0609 4 2026-05-26 0 0001823239 MARAVAI LIFESCIENCES HOLDINGS, INC. MRVI 0001403373 DeFord John A false C/O MARAVAI LIFESCIENCES HOLDINGS, INC. 10770 WATERIDGE CIRCLE, SUITE 200 SAN DIEGO CA 92121 1 0 0 0 0 Class A Common Stock 2026-05-26 4 A 0 46293 0 A 205478 D Represents restricted stock units awarded under the Maravai LifeSciences Holdings, Inc. 2020 Omnibus Incentive Plan on May 26, 2026, which vest in full upon the earlier of one year from the date of grant or the date of the 2027 Maravai LifeSciences Holdings, Inc. annual meeting of stockholders. /s/ Kurt Oreshack, by power of attorney for John DeFord 2026-05-28