X0609 4 2026-10-20 0000007789 ASSOCIATED BANC-CORP ASB 0001774576 Haddad Michael J false C/O ASSOCIATED BANC-CORP 433 MAIN STREET GREEN BAY WI 54301 1 0 Phantom Stock Unit 0 2026-10-20 4 A 0 727.398 29.21 A Common Stock $0.01 Par Value 727.398 71366.582 D Phantom stock units were acquired through the deferral of director fees earned for service on the Issuer's Board of Directors and credited to the Director's Deferred Compensation Plan. Such units will remain in the plan until distributed pursuant to the Insider's distribution election on file. Stock units are 100% vested at the time of the acquisition. Phantom stock units will remain in the Director's Deferred Compensation Plan until such account balance is distributed pursuant to Insider's distribution elections(s) on file. /s/ Lynn M. Floeter, attorney-in-fact for Michael J. Haddad 2026-10-21