X0508 4 2025-03-10 0000007789 ASSOCIATED BANC-CORP ASB 0001756987 DeWitt Angie C/O ASSOCIATED BANC-CORP 433 MAIN STREET GREEN BAY WI 54301 1 Executive Vice President 0 Common Stock $0.01 Par Value 2025-03-10 4 A 0 8222 21.45 A 57435.6043 D Common Stock $0.01 Par Value 2025-03-10 4 A 0 1065 21.45 A 58500.6043 D Common Stock $0.01 Par Value 223.5 I 401(k) Plan Represents vested Performance Shares granted in 2022 and subject to 3-year cliff vesting in 2025, which the reporting person has elected to defer upon vesting, and which will remain in the Executive's Deferred Compensation Plan until distributed pursuant to the reporting person's distribution election on file. Dividend equivalent units earned on vested shares, which the reporting person has elected to defer upon vesting, and which will remain in the Executive's Deferred Compensation Plan until distributed pursuant to the reporting person's distribution election on file. /s/ Lynn M. Floeter, attorney-in-fact for Angie DeWitt 2025-03-12