X0508 4 2024-06-14 0000354647 CVB FINANCIAL CORP CVBF 0001562449 Borba George A Jr 701 N HAVEN AVE ONTARIO CA 91764 1 0 Common Stock 2024-06-14 4 P 0 34200 15.9894 A 660511 I Indirectly through Partnership Common Stock 2024-06-17 4 P 0 4610 15.999 A 665121 I Indirectly through Partnership Common Stock 50363 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 $15.915 to $16 per share. Full information regarding the number of shares purchased at each price shall be provided to the Securities and Exchange Commission staff (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. Represents the weighted average purchase price. The shares were purchased at prices ranging from $15.99 to $16 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 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 owned by The Borba Children's Holding Trust, of which the reporting person is a co-trustee, and as to which he disclaims beneficial ownership except to the extent of his pecuniary interest therein. The inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. /s/ George A. Borba Jr 2024-06-18