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Associated Banc-Corp (NYSE: ASB) plans Form S-4 for proposed American National transaction

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Associated Banc-Corp filed a Form 8-K indicating it is providing written communications under SEC Rule 425 in connection with a proposed transaction involving American National. The company plans to file a registration statement on Form S-4 with the SEC, which will include a prospectus describing the transaction and related details for shareholders.

The filing urges shareholders of American National to read the Form S-4 registration statement and any amendments when they become available, because these documents will contain important information about the proposed transaction. It explains how investors can obtain these materials for free through the SEC’s website, Associated’s investor relations site, or by contacting Associated Banc-Corp directly. The communication also clarifies that it does not itself constitute an offer to buy or sell securities.

Positive

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Insights

Announces a proposed transaction with American National that will require a Form S-4, signaling a potentially significant corporate action but without disclosed terms.

The filing indicates a proposed transaction involving American National for which Associated Banc-Corp will prepare a registration statement on Form S-4 that includes a prospectus. Form S-4 is used when a company registers securities for certain business combinations, so this points to a material corporate action that affects the capital structure, even though no financial or structural details appear here.

The disclosure focuses on process and investor communications. It explains that the Form S-4 will contain important information and will be available via the SEC and company channels, and it frames this 8-K as written communications under Rule 425. The text stresses that the communication is not an offer or solicitation to buy or sell securities, which aligns with standard securities law cautious language for pending deals.

The key takeaway is that a significant transaction with American National is contemplated, with more specifics to come when the Form S-4 is filed and declared effective. The next concrete milestone to watch is the availability of the Form S-4 and prospectus, which should provide terms of the transaction, consideration structure, and any pro forma impacts once filed and publicly accessible.

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM8-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 1, 2025
                                                                            Associated Banc-Corp                                                                      
(Exact name of registrant as specified in its chapter)
Wisconsin001-3134339-1098068
(State or other jurisdiction of incorporation)

(Commission File Number)

(IRS Employer Identification No.)

433 Main StreetGreen BayWisconsin54301
(Address of principal executive offices)(Zip code)
Registrant’s telephone number, including area code920491-7500
 
(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):
þ
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 classTrading symbol(s)Name of each exchange on which registered
Common stock, par value $0.01 per shareASBNew York Stock Exchange
Depositary Shrs, each representing 1/40th intrst in a shr of 5.875% Non-Cum. Perp Pref Stock, Srs EASB PrENew York Stock Exchange
Depositary Shrs, each representing 1/40th intrst in a shr of 5.625% Non-Cum. Perp Pref Stock, Srs FASB PrFNew York Stock Exchange
6.625% Fixed-Rate Reset Subordinated Notes due 2033ASBANew 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

On December 1, 2025, Associated Banc-Corp (the "Company") and American National Corporation ("ANC") issued a press release announcing the execution of an Agreement and Plan of Merger, dated as of November 30, 2025, by and between the Company and ANC pursuant to which, upon the terms and subject to the conditions set forth therein, ANC will merge with and into the Company, with the Company continuing as the surviving entity. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. In addition, the Company provided supplemental information regarding the proposed transaction in connection with a presentation to analysts and investors. A copy of the presentation is attached as Exhibit 99.2 to this Current Report on Form 8-K and is incorporated herein by reference.
 
The information provided under Item 7.01 of this Report on Form 8-K, including Exhibit 99.1 and Exhibit 99.2, is being furnished and is not deemed to be "filed" with the U.S. Securities and Exchange Commission for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act") or otherwise subject to the liabilities of that section and is not incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended or the Exchange Act, whether made before or after the date hereof, except as shall be expressly set forth by specific reference to this Report on Form 8-K in such a filing. The Company does not incorporate by reference to this Report on Form 8-K information presented at any website referenced in this report or in any of the Exhibits attached hereto.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

99.1 Press release dated December 1, 2025

99.2 Presentation dated December 1, 2025
 
104 Cover Page Interactive Data File (embedded within the Inline XBRL document)




CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS
 
This communication may contain certain forward-looking statements, including, but not limited to, certain plans, expectations, goals, projections, and statements about the benefits of the proposed transaction, the plans, objectives, expectations and intentions of Associated Banc-Corp (“Associated”) and American National Bank (“American National”), the expected timing of completion of the transaction, and other statements that are not historical facts. Such statements are subject to numerous assumptions, risks, estimates, uncertainties and other important factors that change over time and could cause actual results to differ materially from any results, performance, or events expressed or implied by such forward-looking statements, including as a result of the factors referenced below. Statements that do not describe historical or current facts, including statements about beliefs and expectations, are forward-looking statements. Forward-looking statements may be identified by words such as “expect,” “seek,” “anticipate,” “continue,” “believe,” “intend,” “estimate,” “project,” “will,” “would,” “plan,” “trend,” “objective,” “target,” “outlook,” “forecast,” “goal,” or similar expressions, or future or conditional verbs such as will, may, might, should, would, could, or similar variations. The forward-looking statements are intended to be subject to the safe harbor provided by Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934, and the Private Securities Litigation Reform Act of 1995.
 
Associated cautions that the forward-looking statements in this communication are not guarantees of future performance and involve a number of known and unknown risks, uncertainties and assumptions that are difficult to assess and are subject to change based on factors which are, in many instances, beyond Associated’s and American National’s control. While there is no assurance that any list of risks and uncertainties or risk factors is complete, below are certain factors which could cause actual results to differ materially from those contained or implied in the forward-looking statements or historical performance: changes in general economic, political, or industry conditions; deterioration in business and economic conditions, including persistent inflation, supply chain issues or labor shortages, instability in global economic conditions and geopolitical matters, as well as volatility in financial markets; changes in U.S. trade policies, including the imposition of tariffs and retaliatory tariffs; the impact of pandemics and other catastrophic events or disasters on the global economy and financial market conditions and our business, results of operations, and financial condition; the impacts related to or resulting from bank failures and other volatility, including potential increased regulatory requirements and costs, such as Federal Deposit Insurance Corporation (the “FDIC”) special assessments, long-term debt requirements and heightened capital requirements, and potential impacts to macroeconomic conditions, which could affect the ability of depository institutions, including us, to attract and retain depositors and to borrow or raise capital; unexpected outflows of uninsured deposits which may require us to sell investment securities at a loss; changing interest rates which could negatively impact the value of our portfolio of investment securities; the loss of value of our investment portfolio, which could negatively impact market perceptions of us and could lead to deposit withdrawals; the effects of social media on market perceptions of us and banks generally; cybersecurity risks; uncertainty in U.S. fiscal and monetary policy, including the interest rate policies of the Board of Governors of the Federal Reserve System (the “Federal Reserve”); volatility and disruptions in global capital, foreign exchange and credit markets; movements in interest rates; competitive pressures on product pricing and services; success, impact, and timing of our business strategies; changes in policies and standards for regulatory review of bank mergers; the nature, extent, timing, and results of governmental actions, examinations, reviews, reforms, regulations, and interpretations, including those related to the Dodd-Frank Wall Street Reform and Consumer Protection Act and the Basel III regulatory capital reforms, as well as those involving the Securities and Exchange Commission (the “SEC”), the Office of the Comptroller of the Currency, Federal Reserve, FDIC, the Consumer Financial Protection Bureau and state-level regulators; the occurrence of any event, change or other circumstances that could give rise to the right of one or both of the parties to terminate the merger agreement between Associated and American National; the outcome of any legal proceedings that may be instituted against Associated or American National; delays in completing the proposed transaction involving Associated and American National; the failure to obtain necessary regulatory approvals (and the risk that such approvals may result in the imposition of conditions that could adversely affect the combined company or the expected benefits of the transaction); the failure to satisfy any of the conditions to the transaction on a timely basis or at all; the possibility that the anticipated benefits of the transaction are not realized when expected or at all, including as a result of the impact of, or problems arising from, the integration of the two companies or as a result of the strength of the economy and competitive factors in the areas where Associated and American National do business; the possibility that the transaction may be more expensive to complete than anticipated, including as a result of unexpected factors or events; the ability of Associated and American National to meet expectations regarding the timing, completion and accounting and tax treatment of the transaction; diversion of management’s attention from ongoing business operations and opportunities; potential adverse reactions or changes to business, customer or employee relationships, including those resulting from the announcement or completion of the transaction; the ability to complete the transaction and integration of Associated and American National successfully; the dilution caused by Associated’s issuance of additional shares of its capital stock in connection with the transaction; and other factors that may affect the future results of Associated and American National. Additional factors that could cause results to differ materially from those described above can be found in Associated’s Annual Report on Form 10-K for the year ended December 31, 2024 and in its subsequent Quarterly Reports on Form 10-Q, each of which is on file with the SEC and available on the “Investor Relations” section of Associated’s website, https://investor.associatedbank.com, under the subheading “SEC Filings” of the heading “Financials” and in other documents Associated files with the SEC.
 
All forward-looking statements are expressly qualified in their entirety by the cautionary statements set forth above. Forward-looking statements speak only as of the date they are made and are based on information available at that time. Associated does not assume any obligation to update forward-looking statements to reflect actual results, new information or future events, changes in assumptions or changes in circumstances or other factors affecting forward-looking statements that occur after the date the forward-looking statements were made or to reflect the occurrence of unanticipated events except as required by federal securities laws. If Associated updates one or more forward-looking statements, no inference should be drawn that Associated will make additional updates with respect to those or other forward-looking statements. As forward-looking statements involve significant risks and uncertainties, caution should be exercised against placing undue reliance on such statements.
 



ADDITIONAL INFORMATION AND WHERE TO FIND IT
 
In connection with the proposed transaction, Associated will file relevant materials with the SEC, including a registration statement on Form S-4 that will include a prospectus of Associated. SHAREHOLDERS OF AMERICAN NATIONAL ARE URGED TO READ THE REGISTRATION STATEMENT WHEN IT BECOMES AVAILABLE, TOGETHER WITH ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC, INCLUDING ANY AMENDMENTS OR SUPPLEMENTS TO THOSE DOCUMENTS, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. Shareholders will be able to obtain a free copy of the registration statement, as well as other filings containing information about Associated, without charge, at the SEC’s website (http://www.sec.gov) and Associated’s website (https://investor.associatedbank.com/financials/sec-filings/default.aspx). Copies of the registration statement, when available, and the filings with the SEC that will be incorporated by reference in the registration statement can also be obtained, without charge, by directing a request in writing to Associated Banc-Corp, Attn: Investor Relations, 433 Main Street, Green Bay, WI 54301 or by email to investor.relations@associatedbank.com. Reference to Associated’s website does not constitute incorporation by reference of the information contained on the website and is not, and should not be, deemed part of this filing.
 
NO OFFER OR SOLICITATION
 
This communication is for informational purposes only and is not intended to and does not constitute an offer to subscribe for, buy or sell, or the solicitation of an offer to subscribe for, buy or sell, or an invitation to subscribe for, buy or sell any securities in any jurisdiction, nor shall there be any sale, issuance or transfer of securities in any jurisdiction in which such offer, invitation, sale or solicitation would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act, and otherwise in accordance with applicable law.






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 1, 2025/s/ Randall J. Erickson
 Randall J. Erickson
 Executive Vice President, General Counsel and Corporate Secretary
 

FAQ

What did Associated Banc-Corp (ASB) disclose in this Form 8-K?

Associated Banc-Corp disclosed that it is issuing a communication under SEC Rule 425 related to a proposed transaction with American National and plans to file a Form S-4 registration statement that will include a prospectus for shareholders.

What is the purpose of the planned Form S-4 for Associated Banc-Corp (ASB)?

The planned Form S-4 will include a prospectus of Associated Banc-Corp and other documents that provide detailed information about the proposed transaction involving American National for use by shareholders.

How can American National shareholders access the Form S-4 and related documents?

Shareholders can obtain the Form S-4 and related filings for free from the SEC’s website, Associated Banc-Corp’s investor relations website, or by requesting copies in writing from Associated Banc-Corp’s Investor Relations or via the provided investor relations email address.

Does this Associated Banc-Corp (ASB) communication constitute an offer to buy or sell securities?

No. The communication explicitly states it is for informational purposes only and does not constitute an offer or solicitation to buy or sell any securities; any offer would be made only by a prospectus that meets Section 10 of the Securities Act.

Why are American National shareholders urged to read the Associated Banc-Corp S-4 filing?

They are urged to read the registration statement and any amendments when available because these documents will contain important information about the proposed transaction and the securities being registered.
Associated Banc Corp

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