X0508 4 2024-11-06 0000007789 ASSOCIATED BANC-CORP ASB 0002040938 Warsek Gregory C/O ASSOCIATED BANK CORP 433 MAIN STREET GREEN BAY WI 54301 1 EVP 0 Common Stock $0.01 Par Value 2024-11-06 4 I 0 26837 28.14 A 26837 I By 401(K) Plan Common Stock $0.01 Par Value 2024-11-07 4 M 0 20372 18.59 A 30194 D Common Stock $0.01 Par Value 2024-11-07 4 M 0 19308 17.50 A 49502 D Common Stock $0.01 Par Value 2024-11-07 4 S 0 39680 27.465 D 9822 D Incentive Stock Option (Right to Buy) 17.50 2024-11-07 4 M 0 19308 0 D 2026-02-26 Common Stock $0.01 Par Value 19308 0 D Incentive Stock Option (Right to Buy) 18.59 2024-11-07 4 M 0 20372 0 D 2025-03-03 Common Stock $0.01 Par Value 20372 0 D The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.410 to $27.465, inclusive. The reporting person undertakes to provide to Associated Banc-Corp, any security holders of Associated Banc-Corp, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in the footnote above. Options vested in four equal annual installments beginning 2/8/2017. Options vested in four equal annual installments beginning 2/8/2016. /s/ Lynn M. Floeter, by POA from Gregory Warsek 2024-11-08