X0508 4 2025-08-04 0000354647 CVB FINANCIAL CORP CVBF 0001562449 Borba George A Jr 701 N HAVEN AVE ONTARIO CA 91764 1 0 Common Stock 2025-08-04 4 P 0 53567 18.6682 A 718688 I Indirectly through Partnership Common Stock 54825 D Common Stock 288 I As Custodian Common Stock 4599439 I In Trust Common Stock 2277000 I Trustee Represents the weighted average purchase price. The shares were purchased at prices ranging from $18.495 to $18.72 per share. Full information regarding the number of shares purchased at each price shall be provided to the Staff, Issuer, or a security holder of Issuer, upon request. Shares held by George Borba & Son Dairy, L.P., a California limited partnership, of which Reporting Person is a general partner. Shares held by Reporting Person as custodian for his minor children, of which he disclaims beneficial ownership except to the extent of his pecuniary interest, if any therein. Shares held by The Marital Trust under The George Borba Family Trust, of which Reporting Person is a co-trustee and disclaims beneficial ownership thereof, except to the extent of his pecuniary interest, if any, therein. Shares held by the Borba Childrens Holding Trust, of which Reporting Person is a co-trustee and disclaims beneficial ownership thereof except to the extent of his pecuniary interest, if any, therein. /s/ George A. Borba Jr 2025-08-04