X0609 4 2026-04-15 0 0000730708 SEACOAST BANKING CORP OF FLORIDA SBCF 0001815460 DEXTER TRACEY false P.O. BOX 9012 STUART FL 34995 0 1 0 0 EVP & CFO 0 Common Stock 2026-04-15 4 A 0 3294 0 A 3294 D Common Stock 5737 D Common Stock 2792 D Common Stock 44381 D Common Stock 2469.901 D Common Stock 1071 D Common Stock Right to Buy 31.15 2028-04-01 Common Stock 2842 2842 D Represents unvested time based restricted stock units granted on April 15, 2026, which vests over 3 years in one-third increments, beginning April 15, 2027, and on each anniversary thereafter subject to continued employment Represents an unvested time-based restricted stock award granted on April 1, 2024, which shall vest over 3 years in one-third increments, beginning April 1, 2025, and on each anniversary thereafter, subject to continued employment Represents an unvested time based restricted stock award grated on April 1, 2025, which vests over 3 years in one-third increments, beginning April 1, 2026, and on each anniversary thereafter subject to continued employment Held in Seacoast's Executive Deferred Compensation Plan Shares in the Company's Employee Stock Purchase Plan Granted pursuant to the Company's Amended and Restated 2013 Incentive Plan Vests over 3 years in one-third increments each anniversary of the date of grant beginning on the first anniversary of the date of grant (the date indicated), subject to continued employment /s/ Kathy L. Hsu as Power of Attorney for Tracey Dexter 2026-04-17