Amendment No. 1 to the Synovus Financial Corp. 2021 Omnibus Plan dated October 23, 2023

THIS AMENDMENT NO. 1 TO SYNOVUS FINANCIAL CORP. 2021 OMNIBUS PLAN (this “Amendment”) is entered into as of October 23, 2023. Capitalized terms used in this Amendment and not otherwise defined shall have the meaning given to such terms in the Synovus Financial Corp. 2021 Omnibus Plan, effective as of April 21, 2021 (the “Plan”).

WHEREAS, Synovus Financial Corp. (“Synovus”) maintains the Plan;

WHEREAS, Synovus desires to amend the Plan to revise certain provisions related to fractional shares, with the Amendment to be effective on and after October 23, 2023;

NOW, THEREFORE, Synovus hereby amends the Plan as follows:

1.Amendment to Plan. Section 19.12 of the Plan is hereby deleted in its entirety.

2.Benefits of this Amendment. Nothing in this Amendment shall affect or diminish any Participant’s rights under the Plan or adversely affect any Award previously granted under the Plan.

3.Governing Law. This Amendment shall be governed by and construed under the laws of the State of Georgia.

4.Counterparts; Effectiveness. This Amendment may be executed in any number of counterparts and each of such counterparts shall for all purposes be deemed to be an original, and all such counterparts shall together constitute one and the same instrument and shall become effective when each party hereto shall have received a counterpart hereof signed by all of the other parties hereto.

5.Effect of Amendment. Except as expressly modified by the Amendment, the Plan shall remain in full force and effect.

IN WITNESS WHEREOF, Synovus has caused this Amendment No. 1 to be duly executed by its authorized officer as of the day and year first above written.