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UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549
FORM | 8-K
CURRENT REPORT
Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) | December 5, 2025

Associated Banc-Corp
(Exact name of registrant as specified in its chapter)

Wisconsin | 001-31343 | 39-1098068
(State or other jurisdiction of incorporation) | (Commission File Number) | (IRS Employer Identification No.)

433 Main Street | Green Bay | Wisconsin | 54301
(Address of principal executive offices) | (Zip code)

Registrant’s telephone number, including area code | 920 | 491-7500

(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities Registered Pursuant to Section 12(b) of the act:

Title of each class | Trading symbol(s) | Name of each exchange on which registered
Common stock, par value $0.01 per share | ASB | New York Stock Exchange
Depositary Shrs, each representing 1/40th intrst in a shr of 5.875% Non-Cum. Perp Pref Stock, Srs E | ASB PrE | New York Stock Exchange
Depositary Shrs, each representing 1/40th intrst in a shr of 5.625% Non-Cum. Perp Pref Stock, Srs F | ASB PrF | New York Stock Exchange
6.625% Fixed-Rate Reset Subordinated Notes due 2033 | ASBA | New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01. Regulation FD Disclosure Associated Banc-Corp is furnishing the investor presentation, included as Exhibit 99.1 to this Report on Form 8-K, which will be used, in whole or in part, from time to time by executives of the Registrant in one or more meetings with investors and analysts. Item 9.01. Financial Statements and Exhibits. (d) Exhibits 99.1 Associated Banc-Corp Investor Presentation 104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
| Associated Banc-Corp
| (Registrant)
Date: December 5, 2025 | /s/ Derek S. Meyer
| Derek S. Meyer
| Chief Financial Officer