X0609 4 2026-04-15 0 0000730708 SEACOAST BANKING CORP OF FLORIDA SBCF 0001916396 STALLINGS JAMES C III false P.O. BOX 9012 STUART FL 34995 0 1 0 0 EVP, Chief Credit Officer 0 Common Stock 2026-04-15 4 A 0 3100 0 A 3100 D Common Stock 3647 D Common Stock 2299 D Common Stock 14799 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 on 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 /s/ Kathy L. Hsu as Power of Attorney for James C. Stallings, III 2026-04-17