UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 _______________________ FORM 10-K _______________________ ☒ Annual report pursuant to section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2023 Commission file number 1-10312 _______________________ SYNOVUS FINANCIAL CORP. (Exact name of registrant as specified in its charter) _______________________ Georgia 58-1134883 (State or other jurisdiction of incorporation or organization) (I.R.S. Emp ...