X0508 4/A 2024-10-30 2024-10-31 0000007789 ASSOCIATED BANC-CORP ASB 0001180800 Erickson Randall J. C/O ASSOCIATED BANC-CORP 433 MAIN STREET GREEN BAY WI 54301 1 Executive Vice President 0 Common Stock $0.01 Par Value 2024-10-30 4 M 0 34473 17.24 A 163153 D Common Stock $0.01 Par Value 2024-10-30 4 F 0 29316 24.02 D 133837 D Non-qualified Stock Option (Right to Buy) 17.24 2024-10-30 4 M 0 34473 0 D 2025-02-02 Common Stock $0.01 Par Value 34473 0 D Acquired shares were inadvertently omitted from share total in column 5 on original Form 4 report. Shares were surrendered to satisfy tax withholding obligations arising from exercise of vested stock options. Option vests in four equal annual installments beginning on February 8, 2016. /s/ Lynn M. Floeter, attorney-in-fact for Randall J. Erickson 2025-10-15