8-K: Nicolet to Acquire MidWestOne in $864M All-Stock Deal

Nicolet Bankshares, Inc. announced a definitive agreement to acquire MidWestOne Financial Group, Inc. in an all-stock transaction valued at approximately $864 million, creating a premier community banking franchise in the Upper Midwest.

Summary

• Nicolet Bankshares, Inc. (Nicolet) will acquire MidWestOne Financial Group, Inc. (MidWestOne) in an all-stock transaction.
• MidWestOne shareholders will receive 0.3175 shares of Nicolet common stock for each MidWestOne share.
• The aggregate merger consideration is valued at approximately $864 million, or $41.37 per share, based on Nicolet's closing stock price of $130.31 as of October 22, 2025.
• Upon completion, MidWestOne shareholders are expected to own 30% of the outstanding shares of the combined company.
• Immediately following the merger, MidWestOne's wholly-owned subsidiary bank, MidWestOne Bank, will merge into Nicolet National Bank, Nicolet's wholly-owned subsidiary bank.
• The combined company will have pro forma total assets of $15.3 billion, deposits of $13.1 billion, and loans of $11.3 billion, based on financial results as of September 30, 2025.
• The transaction values MidWestOne at a price to tangible book value per share of 166% and a price to mean analyst estimated 2026 earnings per share of 11.5 times.
• The merger is expected to be approximately 37% accretive to 2026 GAAP earnings per share, excluding certain merger-related charges and with cost savings fully phased in.
• The transaction is anticipated to be mildly dilutive to tangible book value per share with a negligible earnback period of 0.1 years.
• The merger is intended to qualify as a reorganization within the meaning of Section 368(a) of the Internal Revenue Code for federal income tax purposes.

Sentiment

Score: 9

Explanation: The merger is highly strategic, financially compelling with strong accretion and minimal dilution, and positions the combined entity as a top-tier performer in the Upper Midwest, indicating very positive sentiment.

Positives

• Creates a premier community banking franchise in the Upper Midwest with over $15 billion in assets, positioned for significant growth.
• Expected to enhance existing top quartile/decile financial operating metrics versus peers.
• Solidifies Nicolet as a top 5 bank by deposit market share across Iowa and accelerates growth in the Minneapolis-St. Paul MSA by adding over $1 billion of deposits.
• Adds over $3.4 billion of wealth management AUA, resulting in over $9 billion AUA for the combined company.
• Pro forma funding profile is supported by a strong, granular retail deposit network across stable markets and business segments.
• Anticipated to be approximately 37% accretive to 2026 GAAP EPS (fully-phased, excluding merger-related charges).
• Mildly dilutive to tangible book value per share with a very short earnback period of 0.1 years.
• Strong pro forma CET1 ratio of 10.6% at closing with no additional capital required to support the transaction.
• Robust pro forma profitability with an estimated fully-phased 2026E ROATCE of approximately 23%.
• The companies share highly compatible, relationship-based business philosophies and similar market profiles.
• Retention of key market personnel is planned to ensure limited disruption and support continuity with the customer base.
• Nicolet has a strong track record of successful acquisitions, having completed 9 bank acquisitions since 2013.

Negatives

• The transaction is mildly dilutive to tangible book value per share.
• One-time pre-tax merger expenses are estimated at $60 million.
• There is a risk that cost savings and synergies of the proposed merger may not be realized or may take longer than anticipated.
• Integration of the respective businesses could be materially delayed or be more costly or difficult than expected.
• The announcement and pendency of the transaction may cause disruption to both Nicolet's and MidWestOne's businesses, diverting management's attention.
• Potential reputational risk and reaction from customers, suppliers, employees, or other business partners due to the merger announcement.
• Dilution caused by Nicolet's issuance of additional shares of common stock in connection with the merger.
• The combined company may be subject to additional regulatory requirements as a result of the merger or expansion of business operations.
• An estimated annual pre-tax Durbin impact of approximately $8.5 million is assumed to begin in 2027.

Risks

• The cost savings and synergies of the proposed merger may not be realized or may take longer than anticipated to be realized.
• Integration of MidWestOne's and Nicolet's respective businesses may be materially delayed or be more costly or difficult than expected, including as a result of unexpected factors or events.
• The parties may be unable to meet expectations regarding the timing of the proposed merger.
• Changes to tax legislation and their potential effects on the accounting for the merger could occur.
• Failure to obtain the necessary approvals by the shareholders of Nicolet or MidWestOne.
• The ability by each of Nicolet and MidWestOne to obtain required governmental approvals of the proposed transaction on the timeline expected (which could be affected by government shutdowns), or at all, and the risk that such approvals may result in the imposition of conditions that could adversely affect the combined company after the closing or adversely affect the expected benefits.
• Failure to satisfy other conditions to completion of the proposed merger, or any unexpected delay in closing or the occurrence of any event, change or other circumstances that could give rise to the termination of the merger agreement.
• Disruption to Nicolet's business and to MidWestOne's business as a result of the announcement and pendency of the proposed transaction, and the resulting diversion of management's attention from ongoing business operations and opportunities.
• Potential reputational risk and reaction to the announcement of the proposed merger on Nicolet's, MidWestOne's or the combined company's respective customers, suppliers, employees or other business partners.
• The possibility that the proposed merger may be more expensive to complete than anticipated, including as a result of unexpected factors or events.
• Dilution caused by Nicolet's issuance of additional shares of Nicolet common stock in connection with the merger.
• Risks and uncertainties relating to management and oversight of the combined business and operations of Nicolet and MidWestOne following the closing of the proposed merger.
• The possibility the combined company is subject to additional regulatory requirements as a result of the proposed merger or expansion of the combined company's business operations.
• The outcome of any legal or regulatory proceedings or governmental inquiries or investigations that may be currently pending or later instituted against Nicolet, MidWestOne or the combined company.
• General competitive, economic, political and market conditions and fluctuations and other factors that may affect future results of Nicolet and MidWestOne including changes in asset quality and credit risk; the inability to sustain revenue and earnings growth; changes in interest rates and capital markets; inflation; customer borrowing, repayment, investment and deposit practices; the impact, extent and timing of technological changes; and capital management activities.

Future Outlook

The transaction is expected to close during the first half of 2026, subject to customary closing conditions and regulatory approvals. The combined company anticipates significant financial benefits, including approximately 37% accretion to 2026 GAAP EPS (fully-phased, excluding merger-related charges) and a robust pro forma ROATCE of around 23%. While there will be mild dilution to tangible book value per share, it is expected to have a negligible earnback period of 0.1 years. The combined entity aims to leverage its enhanced scale and market position for continued growth and top-tier financial performance.

Management Comments

• Mike Daniels, Chairman, President, and CEO of Nicolet, stated: "We are excited to announce the acquisition of MidWestOne and welcome their employees, customers, and shareholders to Nicolet. We view the people at MidWestOne as true kindred spirits in our approach to serving customers, communities, and employees. They have been stalwarts of the community for over 90 years, and we intend to be great stewards of that legacy."
• Daniels also commented: "This is a transformational deal for Nicolet that we are announcing days away from the 25th anniversary of our Founding. Our goal with every acquisition is not just to become bigger, but to become a better bank. We have worked hard to put actions to those words. While we had high expectations when we founded Nicolet 25 years ago, few expected us to be where we are today. Now, along with the people at MidWestOne, we remain optimistic about our future, and very much look forward to seeing what our employees, customers, and shareholders can do to create continued shared success over the next 25 years."
• Chip Reeves, CEO of MidWestOne, remarked: "It has been a true privilege to lead such a talented and dedicated team of people at MidWestOne these past few years. We are thrilled to have the opportunity to join Nicolet, a company whose culture, business model, and consistent top-tier financial performance is something we have long admired. The combination of these two community banks provides a great opportunity for our respective teams to continue to deliver high-quality, relationship-based banking products, services, and expertise to our clients, as well as generate long-term value for our stockholders. I could not be more excited about the future of the combined company, and the positive impact it will have on the communities MidWestOne has served for decades."

Industry Context

This merger significantly enhances Nicolet's scale, creating one of the largest community banks in the Upper Midwest with over $15 billion in assets. It expands the combined entity's geographic footprint across Wisconsin, Iowa, Eastern Minnesota, and Northern Michigan, securing lead local market share positions in several communities. The transaction positions Nicolet as a dominant regional player and an acquirer of choice, particularly as it scales past the $10 billion asset threshold, which often brings increased regulatory attention but also new opportunities for growth and market penetration. The focus on wealth management and a strong retail deposit network aligns with broader industry trends towards diversified revenue streams and stable funding.

Comparison to Industry Standards

• The combined company is expected to enhance existing top quartile/decile financial operating metrics versus peers (35 nationwide major exchange-traded banks with assets between $10bn and $20bn).
• Pro Forma NIC's Fully-Phased 2026E ROAA of ~1.8% is projected to be significantly higher than the peer median of 1.19%, top quartile of 1.37%, and top decile of 1.60%.
• Pro Forma NIC's Fully-Phased 2026E ROATCE of ~23% is projected to be substantially higher than the peer median of 13.8%, top quartile of 15.4%, and top decile of 16.7%.
• Pro Forma NIC's Fully-Phased 2026E NIM of ~4.3% is projected to be higher than the peer median of 3.69%, top quartile of 3.91%, and top decile of 4.13%.
• The combined entity will become the #1 mid-sized bank across Wisconsin and Iowa by asset size.
• Iowa market highlights indicate the combined entity will be the #3 largest mid-sized bank by deposits and #4 by percentage of manufacturing GDP.
• Minneapolis-St. Paul MSA highlights show the combined entity will operate in the 3rd largest market in the Midwest by number of businesses and 1st by number of Fortune 500 companies concentration per capita.

Management Changes

Corporate Governance

Legal Proceedings

• The filing generally states that neither MOFG nor NIC, nor any of their subsidiaries, is a party to any outstanding or pending legal, administrative, arbitral, or other proceedings, claims, actions, or governmental or regulatory investigations that would reasonably be expected to have a Material Adverse Effect on them. It also includes standard forward-looking statements regarding the outcome of any legal or regulatory proceedings or governmental inquiries or investigations that may be currently pending or later instituted against Nicolet, MidWestOne, or the combined company.

Related Party Transactions

• The filing states that, except as set forth in the respective disclosure schedules or SEC reports, there are no transactions or series of related transactions, agreements, arrangements, or understandings, nor any currently proposed transactions, between MOFG or NIC (or their subsidiaries) and any current or former director, executive officer, or 5% beneficial owner (or their family members/affiliates) of the type required to be reported in SEC filings that have not been so reported.

Stakeholder Impact

• Shareholders (MidWestOne): Will receive Nicolet common stock, representing approximately 30% ownership of the combined company, with the transaction valuing their shares at a 45.2% market premium based on October 22, 2025 prices.
• Shareholders (Nicolet): Expected to benefit from significant EPS accretion (~37% to 2026 GAAP EPS) and enhanced profitability metrics, positioning the combined entity as a top-tier performer.
• Employees (MidWestOne): Key market personnel are expected to be retained, and continuing employees will receive base salary, annual cash bonus opportunities, long-term incentive compensation opportunities, and employee benefits that are, in the aggregate, no less favorable than those provided to similarly situated Nicolet employees (excluding certain benefits). Chip Reeves (CEO) and Barry Ray (CFO) will join Nicolet's executive leadership team.
• Customers: Expected to benefit from continued high-quality, relationship-based banking products, services, and expertise from a larger, more scaled community bank with an expanded geographic footprint.
• Communities: The combined company expresses an intention to be a great steward of MidWestOne's legacy and anticipates a positive impact on the communities MidWestOne has served for decades.

Next Steps

• Prepare and file a joint proxy statement and S-4 registration statement with the SEC.
• Obtain declaration of effectiveness of the S-4 by the SEC.
• Mail the definitive joint proxy statement/prospectus to shareholders of both Nicolet and MidWestOne.
• Convene shareholder meetings for both Nicolet and MidWestOne to obtain necessary approvals for the merger agreement and related matters.
• Obtain customary regulatory approvals from the Federal Reserve Board, Office of the Comptroller of the Currency (OCC), and relevant state bank regulatory authorities.
• Secure approval for listing of the new Nicolet common stock to be issued in the merger on the NYSE.
• Close the transaction during the first half of 2026.
• Integrate MidWestOne's data processing and related electronic informational systems with Nicolet's systems.
• Plan for the efficient and orderly combination of the operations of MidWestOne Bank and Nicolet National Bank, including the potential merger of MidWestOne Foundation with Nicolet National Foundation.

Key Dates

Recommendation

The all-stock merger offers a significant premium to MidWestOne shareholders and is highly accretive to Nicolet's 2026 EPS (37%) with minimal tangible book value dilution (0.1-year earnback). The combined entity will be a larger, more profitable community bank with enhanced market share and strong capital generation, positioning it as a top-tier performer in the Upper Midwest. This strategic move is expected to create substantial long-term value for shareholders of the combined company.

Keywords

Bank merger, Acquisition, Financial services, Community banking, Nicolet Bankshares, MidWestOne Financial Group, All-stock transaction, SEC filing, 8-K, Corporate governance, Financial reporting, Risk management, Strategic analysis, Wisconsin, Iowa, Minnesota, Michigan, Colorado, Wealth management, Regulatory approval, Shareholder vote, EPS accretion, Tangible book value