ASSOCIATED BANC-CORP

Securities and Exchange Commission (“SEC”) rules allow us to make our Proxy Statement and other annual meeting materials

available to you on the Internet. On or about March 16, 2026, we began mailing a Notice of Internet Availability of Proxy

Materials (the “Notice”) to our shareholders advising them that this Proxy Statement and our Annual Report on Form 10-K for

the year ended December 31,2025 (the “2025 Form 10-K”), along with voting instructions, may be accessed over the Internet

atwww.virtualshareholdermeeting.com/ASB2026. You may access these materials and vote your shares over the Internet, or

request that a printed copy of the proxy materials be sent to you. If you want to receive a paper or e-mail copy of these

materials, you must make the request over the Internet at www.proxyvote.com, by calling toll free 1-800-579-1639, or by

sending an e-mail to sendmaterial@proxyvote.com, on or before April 14, 2026. There is no charge to you for requesting a

paper or e-mail copy from sendmaterial@proxyvote.com. If you previously elected to receive our proxy materials

electronically, these materials will continue to be sent via e-mail unless you change your election.