X0306 4 2015-09-15 0000007789 ASSOCIATED BANC-CORP ASB 0001240631 HUTCHINSON WILLIAM R C/O ASSOCIATED BANC-CORP 433 MAIN STREET GREEN BAY WI 54301 1 Common Stock $0.01 Par Value 2015-09-15 4 A 0 82 18.59 A 89892.23 D Common Stock $0.01 Par Value 2015-09-15 4 A 0 20 18.59 A 89912.23 D Common Stock $0.01 Par Value 2015-09-15 5 J 0 E 0.007 18.5345 A 89912.237 D Common Stock $0.01 Par Value 7200 I by Spouse - IRA Dividend equivalents will become fully vested on the fourth anniversary of the grant of the restricted stock units they have been paid on. They are payable solely in shares of common stock following the date the Insider ceases serving as a director. Fully vested dividend equivalents received on restricted stock units payable solely in shares of common stock following the date Mr. Hutchinson ceases serving as a director. Shares were purchased with reinvested dividends within the Issuer's Dividend Reinvestment Plan. /s/ Tracy A. Devine, attorney-in-fact for William R. Hutchinson 2015-09-17