Hills Bancorporation HBIA US Equity☆

Item 1A. Risk Factors

The performance of our Company is subject to various risks. We consider the risks described below to be the most significant risks we face, but such risks are not the only risk factors that could affect us. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially and adversely affect our business, financial condition or results of operations. For a discussion of the impact of risks on our financial condition and results of operations in recent years and on forward looking statements contained in this report, reference is made to Item 7 below.

Economic and Market Risks

Inflationary pressures in the global economy continue to persist.

Inflationary conditions continue to present risks to the Company, as inflation moderated but remained elevated in key sectors during 2025—with the Consumer Price Index rising 2.7% year‐over‐year in December 2025 and core inflation increasing 2.6%—which may impair borrowers’ ability to meet their obligations. Despite this easing, housing and certain service categories remained above the Federal Reserve’s long‐term target, sustaining pressure on household and business budgets. During 2025, the Federal Reserve cut the federal funds target range from 4.25% to 4.50% to 3.50% to 3.75%. While these reductions eased overall financial conditions, a sustained period of higher interest rates may continue to constrain borrower demand, refinancing activity, and debt‐service capacity into 2026. As a result, ongoing inflationary pressures and evolving interest‐rate policy could adversely affect the Company’s credit performance, funding costs, and overall financial results.

We could experience an unexpected inability to obtain needed liquidity which could adversely affect our business, profitability, and viability as a going concern.

Liquidity measures the ability to meet current and future cash flow needs as they become due. The liquidity of a financial institution reflects its ability to meet loan requests, to accommodate possible outflows in deposits, and to take advantage of interest rate market opportunities. The ability of a financial institution to meet its current financial obligations is a function of its balance sheet structure, its ability to liquidate assets, and its access to alternative sources of funds. The bank failures in 2023 exemplify the potentially catastrophic results of the unexpected inability of insured depository institutions to obtain needed liquidity to satisfy deposit withdrawal requests, including how quickly such requests can accelerate once uninsured depositors lose confidence in an institution’s ability to satisfy its obligations to depositors. We continually strive to ensure our funding needs are met by maintaining a level of liquidity through asset and liability management. If we become unable to obtain funds when needed, it could have a material adverse effect on our business, financial condition, and results of operations and could, in severe circumstances, adversely affect our ability to operate our business as contemplated.

The proportion of our deposit account balances that exceed FDIC insurance limits may expose the Bank to enhanced liquidity risk in times of financial distress.

As of December 31, 2025, approximately 21.79% of our total deposits were not insured by the FDIC. Uninsured deposits historically have been viewed by the FDIC as less stable than insured deposits. According to statements made by the FDIC staff and the leadership of the federal banking agencies, customers with larger uninsured deposit account balances often are small- and mid-sized businesses that rely upon deposit funds for payment of operational expenses and, as a result, are more likely to closely monitor the financial condition and performance of their depository institutions. As a result, in the event of financial distress, uninsured depositors historically have been more likely to withdraw their deposits. If a significant portion of our deposits were to be withdrawn within a short period of time such that additional sources of funding would be required to meet withdrawal demands, we may be unable to obtain funding at favorable terms, which may have an adverse effect on our net interest margin. Obtaining adequate funding to meet our deposit obligations may be more challenging during periods of elevated prevailing interest rates, such as the present, and our ability to attract depositors during a time of actual or perceived distress or instability in the marketplace may be limited. Further, interest rates paid for non-deposit borrowings generally exceed the interest rates paid on deposits, and this spread may be exacerbated by higher prevailing interest rates.

We are constantly at risk of increased losses from fraud.

Criminals are committing fraud at an increasing rate and are using more sophisticated techniques. In some cases, these individuals are part of larger criminal rings, which allow them to be more effective. Such fraudulent activity has taken many forms, ranging from debit card fraud, check fraud, mechanical devices attached to ATM machines, social engineering and phishing attacks to obtain personal information, or impersonation of clients through the use of falsified or stolen credentials. Additionally, an individual or business entity may properly identify itself, yet seek to establish a business relationship for the purpose of perpetrating fraud. An emerging type of fraud even involves the creation of synthetic identification in which fraudsters “create” individuals for the purpose of perpetrating fraud. Further, in addition to fraud committed directly against us, the Company may suffer losses as a result of fraudulent activity committed against third parties. Increased deployment of

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technologies, such as chip card technology and multi-factor authentication, defray and reduce certain aspects of fraud; however, criminals are turning to other sources to steal personally identifiable information, such as unaffiliated healthcare providers and government entities, in order to impersonate the consumer and thereby commit fraud.

We may be adversely affected by economic conditions in the local economies in which we conduct our operations, and in the United States in general, including global economic and geopolitical instability, inflationary risks and future widespread health emergencies or pandemics.

Our primary market includes the Iowa counties of Johnson, Linn, Washington and Iowa. Our market has been one of the strongest economic areas in Iowa over the past ten years. The unemployment rate for our prime market area is favorable and the rate historically has been lower than the unemployment rates for both the United States and the State of Iowa. However, unfavorable or uncertain economic and market conditions may adversely affect our business and profitability. Our business faces various material risks, including credit risk, liquidity risk and the risk that the demand for our products and services will decrease. Consumer confidence, real estate values, interest rates and investment returns could make the types of loans we originate less profitable and could increase our credit risk and litigation expense. And, while the presence of the University of Iowa and its affiliated institutions has a significant favorable impact upon the regional economy, it is unclear what impact the State budget and funding models will have on the University of Iowa and the University of Iowa Hospitals and Clinics.

Instability in global economic conditions and geopolitical matters, as well as volatility in financial markets, could have a material adverse effect on the Company’s results of operations and financial condition. The macroeconomic environment in the United States is susceptible to global events and volatility in financial markets.

Changing interest rates may adversely affect our profits.

Our income and cash flows depend to a great extent on the difference between the interest rates earned by us on interest-earning assets such as loans and investment securities and the interest rates paid by us on interest-bearing liabilities such as deposits and borrowings. Our net interest margin will be affected by general economic conditions, fiscal and monetary policies of the federal government, and our ability to respond to changes in such rates. Our assets and liabilities are affected differently by a change in interest rates. An increase or decrease in rates, the length of loan terms or the mix of adjustable and fixed rate loans in our portfolio could have a positive or negative effect on our net income, capital and liquidity. We measure interest rate risk under various rate scenarios and using specific criteria and assumptions. A summary of this process is presented under the heading "Quantitative and Qualitative Disclosures about Market Risk" included under Item 7A of Part II of this Form 10-K. The Federal Open Market Committee (FOMC), with particular attention being given to labor market conditions, recognized continued inflation pressures and inflation expectations, and financial and international developments. Prevailing interest rates influence the interest we receive on loans and investments and the amount of interest we pay on deposits and borrowings. If the target range for the federal funds rate remains elevated for an extended period, combined with ongoing geopolitical instability, raise the risk of economic recession. Any such downturn, especially in the regions in which we operate, may adversely affect our asset quality, deposit levels, loan demand and results of operations. Also, our interest rate risk modeling techniques and assumptions may not fully predict or capture the impact of actual interest rate changes on our financial condition and results of operations.

Changes in U.S. trade policies, such as the implementation of tariffs, and other factors beyond the Company’s control may adversely impact our business, financial condition and results of operations.

The U.S. government has implemented tariffs on certain products from countries or entities such as Mexico, Canada, China and the European Union. These countries have issued or continue to threaten retaliatory tariffs against products from the United States, including agricultural products.In addition, the ongoing trade policies and potential tariff initiatives being pursued by the U.S. government could present potential risks unique to the markets within which we operate.As a major producer and exporter of agricultural commodities, including corn, soybeans, and pork, Iowa is particularly vulnerable to negative consequences from such policy initiatives. Any changes to trade agreements, the imposition of tariffs on agricultural products, or the escalation of trade disputes with key international trading partners could lead to reduced demand for Iowa’s agricultural exports, increased input costs for local farmers, and disrupted supply chains. This, in turn, could result in financial strain for our agricultural clients, increasing the risk of loan defaults or delinquencies within our loan portfolio. Additionally, any prolonged trade tensions or the implementation of tariffs could negatively impact the broader economic environment in Iowa and the Midwest, potentially leading to reduced consumer spending, lower economic growth, and decreased demand for other banking products and services.

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As a result, our financial performance, including credit quality and loan growth, could be adversely affected by these policy changes. While we actively monitor these developments and work closely with our agricultural customers, there is no assurance that we can fully mitigate the risks posed by potential tariff initiatives or other trade-related disruptions. These factors could materially affect our business, financial condition, and results of operations.

We may be adversely impacted by legislation and potential additional legislation and rulemaking.

The 2008-2009 recession produced a number of new laws that impact financial institutions including the Dodd-Frank Act. The Dodd-Frank Act established the Consumer Financial Protection Bureau (the “CFPB”) and granted it the broad authority to administer and enforce a new federal regulatory framework of consumer financial regulation. Any changes to state and federal banking laws and regulations may adversely impact our ability to expand services and to increase the value of our business. We are subject to extensive state and federal regulation, supervision, and legislation that govern almost all aspects of our operations. These laws may change from time to time and are primarily intended for the protection of consumers, depositors and the deposit insurance funds. In addition, our earnings are affected by the monetary policies of the Board of Governors of the Federal Reserve. These policies, which include regulating the national supply of bank reserves and bank credit, may have a major effect upon the source and cost of funds and the rates of return earned on loans and investments. The Federal Reserve influences the size and distribution of bank reserves through its open market operations and changes in cash reserve requirements against member bank deposits. We cannot predict what effect such act and any presently contemplated or future changes in the laws or regulations or their interpretations would have on us, but such changes could be materially adverse to our financial performance.

Reduction in the value, or impairment of our investment securities, may impact our earnings and stockholders' equity.

We maintained a balance of $955.58 million, or 20.56% of our total assets, in investment securities at December 31, 2025. Changes in market interest rates may affect the value of these investment securities, with increasing interest rates generally resulting in a reduction of value. Although the reduction in value from temporary increases in market rates does not affect our income until the security is sold, it does result in an unrealized loss recorded in other comprehensive income that may reduce our stockholders' equity. Available-for-sale (AFS) debt securities in unrealized loss positions are evaluated for impairment related to credit losses at least quarterly. For AFS debt securities, a decline in fair value due to credit loss results in recording an allowance for credit losses to the extent the fair value is less than the amortized cost basis. In assessing whether the impairment of investment securities is due to credit losses, we consider if a credit loss exists by monitoring to ensure it has adequate credit support considering the nature of the investment, collectability or delinquency issues, the underlying financial statements of the issuers, credit ratings and subsequent changes thereto, other available relevant information, and the intent and ability to retain our investment in the security for a period of time sufficient to allow for any anticipated recovery in fair value.

Growth levels in local and national real estate markets may impact our operations and/or financial condition.

Change in growth in the national housing market as evidenced by reports of levels of new and existing home sales, inventories of houses on the market, property values, building permits, and the time houses remain on the market may indicate increased levels of credit risk. In past history of real estate growth, some lenders made many adjustable-rate mortgage loans, and lowered their credit standards with respect to mortgage loans and home equity loans. A subsequent slowdown in the national housing market created uncertainty and liquidity issues relating to the value of such mortgage loans, which caused disruption in credit markets. Management will continue to monitor that the Bank has maintained appropriate lending standards in times of real estate growth and decline. No assurance can be given that these conditions will not directly or indirectly affect our operations.

Regulatory and Legal Risks

We are subject to a variety of litigation or other proceedings, which could adversely affect our business.

We are involved from time to time in a variety of litigation or other proceedings arising out of business or operations. We establish reserves for claims when appropriate under accounting principles generally accepted in the United States of America, but costs often may be incurred in connection with a matter before any reserve has been created. In addition, the actual costs associated with resolving a claim may be substantially higher than amounts that we have reserved. Substantial legal claims could have a detrimental impact on our business, results of operations, and financial condition and may cause reputational harm.

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If we do not continue to meet or exceed regulatory capital requirements and maintain our “well-capitalized” status, there could be an adverse effect on the manner in which we do business and on the confidence of our customers in us.

Under regulatory capital adequacy guidelines, we must meet guidelines that involve quantitative measures of assets, liabilities and certain off-balance sheet items. Failure to meet minimum capital requirements could have a material effect on our financial condition and could subject us to a variety of enforcement actions, as well as certain restrictions on our business. Failure to maintain the status of “well-capitalized” under the regulatory framework could adversely affect the confidence that our customers have in us, which may lead to a decline in the demand for or a reduction in the prices that we are able to charge for our products and services. Failure to meet the guidelines could also limit our access to liquidity sources.

Climate change and related legislative and regulatory initiatives may result in operational changes and expenditures that could significantly impact our business.

The current and anticipated effects of climate change are creating an increasing level of concern for the state of the global environment. As a result, political and social attention to the issue of climate change has increased. In recent years, governments across the world have entered into international agreements to attempt to reduce global temperatures, in part by limiting greenhouse gas emissions. The U.S. Congress, state legislatures and federal and state regulatory agencies have continued to propose and advance numerous legislative and regulatory initiatives seeking to mitigate the effects of climate change. Consumers and businesses may also change their behavior on their own as a result of these concerns. The impact on our customers will likely vary depending on their specific attributes, including reliance on or role in carbon intensive activities. Our efforts to take these risks into account in making lending and other decisions, including by increasing our business with climate-friendly companies, may not be effective in protecting us from the negative impact of new laws and regulations or changes in consumer or business behavior.

Climate change and agricultural sector risk.

The Company operates in a region of the United States that is heavily reliant on the agricultural sector, which represents a significant portion of the local economy. According to data provided by the United States Department of Agriculture (USDA), the market value of agricultural products sold by Iowa farms during 2022 totaled more than $43 billion, ranking second nationally only to the state of California.As climate change continues to impact weather patterns and environmental conditions in our geographic region, the agricultural sector faces increased risks associated with increased volatility in crop yields, more frequent and severe extreme weather events (such as droughts, floods, and storms), and changing agricultural growing seasons.

Given the lack of empirical data on the credit and other financial risks posed by climate change, it is difficult to predict how climate change may impact our financial condition and operations. Such climate-related factors may result in greater financial strain on the agricultural businesses and farming communities that form a substantial part of our customer base. This, in turn, could lead to higher default rates on loans, lower demand for agricultural credit, and decreased collateral values for agricultural loans. Additionally, disruptions to regional supply chains, rising insurance costs, and the potential for reduced investment in the area may exacerbate the overall economic instability in our market.

While we have implemented practices to mitigate against these risks, including monitoring agricultural sector exposure and diversifying our loan portfolio, the long-term financial stability of the regional economy remains vulnerable to the potential impacts of climate change. As a result, our financial condition and results of operations could be materially adversely affected by the consequences of climate change on the agricultural sector and the broader regional economy.

There may be issues with environmental law compliance if we take possession of real property that secures a loan.

A significant portion of our loan portfolio is secured by real property. We may foreclose on and take title to certain real property. There is a risk that hazardous substances could be found on the property and we may be liable for remediation costs, personal injury and/or property damage. We may incur substantial expenses to comply with environmental laws which may materially reduce the property's value or limit our ability to dispose of the property. The remediation costs and any other financial liabilities associated with the property could have a material adverse effect on our financial condition and results of operations.

Credit and Lending Risks

Our loan portfolio has a large concentration of real estate loans, which involve risks specific to real estate value.

Real estate loans, which constitute a large portion of our loan portfolio, include home equity, commercial, construction and residential loans, and such loans are concentrated in the Bank’s trade area. As of December 31, 2025, 86.39% of our loans had

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real estate as a primary component of collateral. The market value of real estate may fluctuate significantly in a short period of time as a result of market conditions in the geographic area in which the real estate is located. Adverse developments affecting real estate values in our market could increase the credit risk associated with our loan portfolio. Also, real estate lending typically involves higher loan principal amounts and the repayment of the loans generally is dependent, in large part, on sufficient income from the properties securing the loans to cover operating expenses and debt service. Economic events or governmental regulations outside of the control of the borrower could adversely impact the future cash flow and market values of the affected properties.

If the loans that are collateralized by real estate become troubled during a time when market conditions are declining or have declined, we may not be able to realize the amount of security that we anticipated at the time of originating the loan, which could cause us to increase our provision for credit losses and adversely affect our operating results and financial condition.

Our real estate loans also include construction loans, including land acquisition and development. Construction, land acquisition and development lending involves additional risks because funds are advanced based upon estimates of costs and the estimated value of the completed project. Because of the uncertainties inherent in estimating construction costs, as well as the market value of the completed project and the effects of governmental regulation on real property, it is relatively difficult to evaluate accurately the total funds required to complete a project and the related loan-to-value ratio. As a result, commercial construction loans often involve the disbursement of substantial funds with repayment dependent, in part, on the success of the ultimate project and the ability of the borrower to sell or lease the property, rather than the ability of the borrower or guarantor to repay principal and interest. If our appraisal of the value of the completed project proves to be overstated, we may have inadequate security for the repayment of the loan upon completion of construction of the project.

Commercial loans make up a significant portion of our loan portfolio.

Our commercial loans are primarily made based on the identified cash flow of the borrower and secondarily on the underlying collateral provided by the borrower. Repayment of our commercial loans is often dependent on the cash flows of the borrower, which may be unpredictable. Most often, this collateral consists of accounts receivable, inventory, machinery and equipment. In the case of loans secured by accounts receivable, the availability of funds for the repayment of these loans may be substantially dependent on the ability of the borrower to collect amounts due from its customers. The other types of collateral securing these loans may depreciate over time, may be difficult to appraise and may fluctuate in value based on the success of the business.

Our agricultural loans may involve a greater degree of risk than other loans, and the ability of the borrower to repay may be affected by many factors outside of the borrower’s control.

Payments on agricultural real estate loans are dependent on the profitable operation or management of the farm property securing the loan. The success of the farm may be affected by many factors outside the control of the borrower, including adverse weather conditions that prevent the planting of a crop or limit crop yields (such as hail, drought and floods), loss of livestock due to disease or other factors, changes in market prices for agricultural products (both domestically and internationally) and the impact of government regulation (including changes in price supports, subsidies and environmental regulation). In addition, many farms are dependent on a limited number of key individuals whose injury or death may significantly affect the successful operation of the farm. If the cash flow from a farming operation is diminished, the borrower’s ability to repay the loan may be impaired. The primary crops in our market areas are corn and soybeans. Accordingly, adverse circumstances affecting these crops could have an adverse effect on our agricultural real estate loan portfolio.

We also originate agricultural operating loans. As with agricultural real estate loans, the repayment of operating loans is dependent on the successful operation or management of the farm property. Likewise, agricultural operating loans involve a greater degree of risk than lending on residential properties, particularly in the case of loans that are unsecured or secured by rapidly depreciating assets such as farm equipment or assets such as livestock or crops. The primary livestock in our market areas are hogs and turkeys. In these cases, any repossessed collateral for a defaulted loan may not provide an adequate source of repayment of the outstanding loan balance as a result of the greater likelihood of damage, loss or depreciation.

We may be required to repurchase mortgage loans or reimburse investors and others as a result of breaches in contractual representations and warranties.

We sell residential mortgage loans to various parties that purchase mortgage loans for investment. The agreements under which we sell mortgage loans contain various representations and warranties regarding the origination and characteristics of the mortgage loans, including ownership of the loan, compliance with loan criteria set forth in the applicable agreement, validity of

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the lien securing the loan, absence of delinquent taxes or liens against the property securing the loan, and compliance with applicable origination laws. We may be required to repurchase mortgage loans, indemnify the investor, or reimburse the investor for credit losses incurred on loans in the event of a breach of contractual representations or warranties. The agreements under which we sell mortgage loans require us to deliver various documents to the investor, and we may be obligated to repurchase any mortgage loan as to which the required documents are not delivered or are defective.

We depend on the accuracy and completeness of information about customers and counterparties.

In deciding whether to extend credit or enter into other transactions with customers and counterparties, we may rely on information furnished by or on behalf of customers and counterparties, including financial statements and other financial information. We also may rely on representations of clients and counterparties as to the accuracy and completeness of that information and, with respect to financial statements, on reports of independent auditors and accountants if made available. If this information is inaccurate, we may be subject to regulatory action, reputational harm or other adverse effects with respect to the operation of our business, our financial condition and our results of operation.

Capital and Liquidity Risks

If we are unable to continuously attract deposits and other short-term funding, our financial condition and our business prospects could be adversely affected.

In managing our liquidity, our primary source of short-term funding is customer deposits. Our ability to continue to attract these deposits, and other short-term funding sources, is subject to variability based upon a number of factors, including the relative interest rates we are prepared to pay for these liabilities and the perception of safety of those deposits or short-term obligations relative to alternative short-term investments. The availability and cost of credit in short-term markets depends upon market perceptions of our liquidity and creditworthiness. Our efforts to monitor and manage liquidity risk may not be successful or sufficient to deal with dramatic or unanticipated changes in event-driven reductions in liquidity. In such events, our cost of funds may increase, thereby reducing our net interest revenue, or we may need to dispose of a portion of our investment portfolio, which, depending on market conditions, could result in our realizing a loss or experiencing other adverse consequences.

Conditions in the financial markets may limit our access to funding to meet our liquidity needs.

Liquidity is essential to our business, as we must maintain sufficient funds to respond to the needs of depositors and borrowers. An inability to raise funds through deposits, borrowings, the sale or pledging as collateral of loans and other assets could have a substantial adverse effect on our liquidity. Our access to funding sources in the amounts adequate to finance our activities could be impaired by factors that affect us specifically or the financial services industry in general. Factors that could adversely affect our access to liquidity sources include a decrease in the level of our business activity due to a market downturn or adverse regulatory action against us. Our ability to borrow could also be impaired by factors that are not specific to us, such as severe disruption of the financial markets or adverse news and expectations about the prospects for the financial services industry as a whole.

As a part of our liquidity management, we use a number of funding sources in addition to core deposit growth and repayments and maturities of loans and investments. These sources include brokered money markets and certificates of deposit, federal funds purchased, lines of credit, and Federal Home Loan Bank advances. Negative operating results or changes in industry conditions could lead to an inability to replace these additional funding sources at maturity. Our financial flexibility could be constrained if we are unable to maintain our access to funding or if adequate financing is not available to accommodate future growth at acceptable interest rates. Finally, if we are required to rely more heavily on more expensive funding sources to support future growth, our revenues may not increase proportionately to cover our costs. In this case, our results of operations and financial condition would be adversely affected.

Our profitability and liquidity may be adversely affected by deterioration in the credit quality of, or defaults by, third parties who owe us money or other assets.

We are exposed to the risk that third parties that owe us money or other assets will not fulfill their obligations. These parties may default on their obligations to us due to bankruptcy, lack of liquidity, operational failure or other reasons. Our rights against third parties may not be enforceable in all circumstances. In addition, deterioration in the credit quality of third parties whose securities or obligations we hold could result in losses and/or adversely affect our ability to use those securities or obligations for liquidity purposes.

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Deterioration in the credit quality of third parties could adversely affect our financial condition and results of operations, including through losses, reduced liquidity, or adverse valuation changes. Management believes that the allowance for credit losses is adequate to absorb probable losses on any existing loans that may become uncollectible but cannot predict loan losses with certainty and cannot assure that our allowance for credit losses will prove sufficient to cover actual losses in the future.

Our growth may require us to raise additional capital in the future, but that capital may not be available.

We may at some point need to raise additional capital to maintain our “well-capitalized” status. Any capital we obtain may result in the dilution of the interests of existing holders of our stock. Our ability to raise additional capital, if needed, will depend on conditions in the capital markets at that time, which are outside our control, and on our financial condition and performance. Accordingly, we cannot make assurances of our ability to raise additional capital if needed, or if the terms will be acceptable to us.

Competitive and Strategic Risks

We experience intense competition for loans and deposits.

Competition in banking and financial services business in our market is highly competitive and is currently undergoing significant change. Our competitors include local commercial banks, local credit unions, online banks, mortgage companies, finance companies and other non-bank financial services providers. Increasingly, competitors are able to provide integrated financial services over a broad geographic area. Increased competition may result in a decrease in the amounts of loans and deposits, reduced spreads between loan rates and deposit rates or loan terms that are less favorable to us. Competition may also accelerate investments in technology or infrastructure. Any of these results could have a material adverse effect on our ability to grow and remain profitable.

New products and services are essential to remain competitive but may subject us to additional risks.

We consistently attempt to offer new products and services to our customers to remain competitive. There can be risks and uncertainties associated with these new products and services especially if they are newer to market products and services. We may spend significant time and resources in development of new products and services to market to customers. Through our development and implementation process we may incur risks associated with delivery timetables, pricing and profitability, compliance with regulations, effect on internal controls and shifting customer preferences. Failure to successfully manage these risks could have a material effect on our financial condition, result of operations, and business.

Our customers may decide to use non-bank competitors for financial transactions, which could result in loss of business.

Advancement in technology and other changes are increasing the ability for customers to complete financial transactions that have traditionally involved banks through non-bank competitors. Elimination of banks as intermediaries of financial transactions could result in the loss of customer deposits as well as fee income to us.

We are subject to risks associated with negative publicity.

Reputational risk arises from the potential that negative publicity regarding our business practices, whether true or not, could cause a decline in our customer base, costly litigation, or revenue reductions. In addition, our success in maintaining our reputation depends on the ability to adapt to a rapidly changing environment including increasing reliance on social media.

Accounting and Tax Risks

Our allowances for credit losses for loans and debt securities may prove inadequate or we may be negatively affected by credit risk exposures. Also, future additions to our allowance for credit losses will reduce our future earnings.

Our business depends on the creditworthiness of our customers. As with most financial institutions, we maintain allowances for credit losses for loans and debt securities to provide for defaults and nonperformance, which represent an estimate of expected losses over the remaining contractual lives of the loan and debt security portfolios. This estimate is the result of our continuing evaluation of specific credit risks and loss experience, current loan and debt security portfolio quality, present economic, political and regulatory conditions, industry concentrations, reasonable and supportable forecasts for future conditions and other factors that may indicate losses. The determination of the appropriate levels of the allowances for loan and debt security credit losses inherently involves a high degree of subjectivity and judgment and requires us to make estimates of current credit risks

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and future trends, all of which may undergo material changes. Generally, our nonperforming loans and other real estate owned reflect operating difficulties of individual borrowers and weaknesses in the economies of the markets we serve. The allowances may not be adequate to cover actual losses, and future allowance for credit losses could materially and adversely affect our financial condition, results of operations and cash flows.

Our accounting policies and methods are fundamental to how we report our financial condition and results of operations, and we use estimates in determining the fair value of certain of our assets, the expected credit losses related to loans and debt securities, and the amount of other loss contingencies as of the balance sheet date, which estimates are subject to very large uncertainty.

A portion of our assets are carried on the balance sheet at fair value, including debt securities available for sale. Generally, for assets that are reported at fair value, we use quoted market prices or valuation models that utilize observable market data inputs to estimate their fair value as of the balance sheet date. In certain cases, observable market prices and data may not be readily available or their availability may be diminished due to market conditions. We use financial models to value certain of these assets. These models are complex and use asset-specific collateral data and market inputs for interest rates. Although we have processes and procedures in place governing valuation models and their testing and calibration, such assumptions are complex as we must make judgments about the effect of matters that are inherently uncertain. Different assumptions could have resulted in significant changes in valuation, which in turn would have affected earnings or resulted in significant changes in the dollar amount of assets reported on the balance sheet or both.

We may be adversely affected by changes in U.S. tax laws and regulations.

Changes in tax laws at national or state levels could have an effect on the Company’s short-term and long-term earnings. Changes in tax laws could affect the Company’s earnings as well as its customers’ financial positions, or both. Changes in tax laws could also require the revaluation of the Company’s net deferred tax position, which could have a material adverse effect on our results of operations and financial condition.

Operational Risks

Our growth strategy relies heavily on our management team, and the unexpected loss of key managers and/or officers may adversely affect our operations.

Our success is dependent on experienced senior management with a strong local community network. Our ability to retain the current management team is key to the successful implementation of our growth strategy. It is equally important that we are able to continue to attract and retain quality and community-focused managers and officers. The unexpected loss of one of our key managers and/or officers or the inability to attract qualified personnel could have an adverse effect on our operations, financial condition and reputation.

Labor shortages and a failure to attract and retain qualified employees could negatively impact our business, results of operations and financial condition.

A number of factors may adversely affect the labor force available to us or increase labor costs, including high employment levels, decreased labor force size and participation rates, and other government actions. Although we have not experienced any material labor shortage to date, we have recently observed an overall tightening and increasingly competitive local labor market. A sustained labor shortage or increased turnover rates within our employee base and also within our third-party vendors could lead to increased costs, such as increased compensation expense to attract and retain employees. In addition, if we are unable to hire and retain employees capable of performing at a high-level, or if mitigation measures we take to respond to a decrease in labor availability have unintended negative effects, our business could be adversely affected. An overall labor shortage, lack of skilled labor, increased turnover or labor inflation as a result of general macroeconomic factors, could have a material adverse impact on our business, results of operations and financial condition.

The potential for business interruption exists throughout our organization.

Integral to our performance is the continued efficacy of our technical systems, operational infrastructure, relationships with third parties and the array of personnel involved with bank operations. Failure by any or all of these resources subjects us to risks that may vary in size, scale and scope. This includes, but is not limited to, operational or technical failures, ineffectiveness or exposure due to interruption in third-party support, as well as the loss of key individuals or failure on the part of key individuals to perform properly. These risks are heightened during data system changes or conversions. Although management

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has established policies and procedures to address such failures, the occurrence of any such event could have a material adverse effect on our business, which, in turn, could have a material adverse effect on our financial condition and results of operations.

Our risk management framework may not be effective in mitigating risk and loss.

We maintain an enterprise risk management program that is designed to identify, quantify, monitor, report and control the risks that we face. These include credit, liquidity, market, operational, reputational, compliance, strategic, information technology and security, and trust risks. While we assess this program on an ongoing basis, there can be no assurance that its approach and framework for risk management and related controls will effectively mitigate risk and limit losses in our business. If conditions or circumstances arise that expose flaws or gaps in the risk management program or if its controls break down, the performance and value of our business could be adversely affected.

Our internal controls may be ineffective.

We regularly review and update our internal controls, disclosure controls and procedures, and corporate governance policies and procedures. Any system of controls, however well-designed and operated, is based in part on certain assumptions and may provide only reasonable, not absolute, assurances that the objectives of the controls are met. Any failure or circumvention of our controls and procedures or failure to comply with regulations related to controls and procedures could have a material adverse effect on our business, financial condition and results of operation.

We are subject to risks associated with technological changes and the resources needed to implement the changes.

Our industry is susceptible to significant technological changes as there continue to be high levels of new technology driven products and services introduced. Technological advancement aids us in providing customer service and increases efficiency. Our national competitors may have more resources to invest in technological changes. As a result they may be able to offer products and services that are more technologically advanced and that may put us at a competitive disadvantage. Our future may depend on our ability to analyze technological changes to determine the best course of action for our business, customers and shareholders.

Potential impact of artificial intelligence and quantum computing on our operations and competitiveness.

The rapid development and implementation of advanced technologies, including artificial intelligence ("AI") and quantum computing, present both opportunities and risks to our business. AI technologies are being increasingly adopted across the financial services industry to enhance operational efficiencies, optimize decision-making, and improve customer experience. Similarly, quantum computing, though still in early stages, has the potential to revolutionize areas such as data encryption, portfolio optimization, and risk modeling. However, the pace at which competitors and other financial institutions adopt these technologies may create challenges for our ability to remain competitive. For instance, if we are unable to effectively implement or keep pace with advancements in AI and quantum computing, we may experience a competitive disadvantage, which could result in decreased market share, reduced profitability, and strained customer relationships. Furthermore, the integration of these technologies into banking operations may require significant investments in infrastructure, talent acquisition, and cybersecurity measures, which could have a material adverse effect on our financial performance and operations.

In addition to competitive risks, there is also the potential for AI and quantum computing to be misused, including by malicious actors seeking to exploit these technologies for fraudulent activities. As a result, our systems could be targeted for exploitation by such actors, leading to risks such as unauthorized transactions, identity theft, and other forms of financial fraud. Similarly, quantum computing, when it matures, could potentially undermine the security of current encryption methods, exposing us and our customers to heightened cybersecurity risks. While we are actively monitoring and investing in security measures to address these emerging threats, there is no guarantee that we will be able to prevent all potential risks associated with the misuse of these technologies.

As a result, the risks associated with the rapid evolution of AI and quantum computing may have an adverse effect on our ability to compete effectively, as well as expose us to new forms of fraud and cybersecurity threats, which could materially affect our business, financial condition, and results of operations.

We rely heavily on our network security and any system failure or data breach could subject us to increased costs as well as reputational risk.

Our operations are dependent on our ability to process financial transactions in a secure manner. Failure in or breach of our operational or security systems or infrastructure, or those of our third-party vendors and other service providers, could disrupt

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our business or the businesses of our customers, result in the disclosure or misuse of confidential or proprietary information, damage our reputation, increase our costs and cause losses. We must ensure that information is properly protected from a variety of threats such as cyber attacks, error, fraud, sabotage, terrorism, industrial espionage, privacy violation, service interruption, and natural disaster. These threats arise from numerous sources including human error, fraud on the part of employees or third parties, technological failure, telecommunication outages, and severe weather conditions. Information security risks for financial institutions like us have increased recently in part because of new technologies, the increased use of the internet and telecommunications technologies (including mobile devices and cloud computing) to conduct financial and other business transactions, political activism, and the increased sophistication and activities of organized crime. Although we employ detection and response mechanisms designed to contain and mitigate security incidents, early detection may be thwarted by persistent sophisticated attacks and malware designed to avoid detection.

We devote significant resources to implement, maintain, monitor and regularly upgrade our systems and networks with measures such as intrusion detection and prevention and firewalls to safeguard critical business applications. The additional cost to the Company of our cyber security monitoring and protection systems and controls includes the cost of hardware and software, third party technology providers, consulting, and legal fees, in addition to the incremental cost of our personnel who focus a substantial portion of their responsibilities on cyber security. In addition, because cyber attacks can change frequently we may be unable to implement effective preventive or proactive measures in time. With the assistance of third-party service providers, we intend to continue to implement security technology and establish procedures to maintain network security, but there is no assurance that these measures will be successful. As cyber threats continue to evolve, we may be required to expend significant additional resources to continue to modify or enhance our protective measures or to investigate and remediate any information security vulnerabilities. Despite these efforts, our cybersecurity measures and those of our third-party service providers may not be effective in preventing, detecting, or mitigating all cybersecurity incidents or breaches.

Any activity that jeopardizes our network and the security of the information stored thereon may result in significant cost and have a significant adverse effect on our reputation. We maintain insurance coverage that may, subject to policy terms and conditions, cover certain aspects of cyber risks. Such insurance coverage may be insufficient to cover all losses.

Any successful cyber attack or other security breach involving the misappropriation or other unauthorized disclosure of confidential customer information or that compromises our ability to function could severely damage our reputation, erode confidence in the security of our systems, products and services, expose us to the risk of litigation and liability, disrupt our operations and have a material adverse effect on our business. Any successful cyber attack may also subject the Company to regulatory investigations, litigation or enforcement, or require the payment of regulatory fines or penalties or undertaking costly remediation efforts with respect to third parties affected by a cyber security incident, all or any of which could adversely affect the Company’s business, financial condition or results of operations and damage its reputation.

Loss of key third-party vendor relationships or failure of a vendor to protect information of our customers or employees could adversely affect our business or result in losses.

We rely on third-party vendors to provide key components of our business operations such as data processing, recording and monitoring transactions, online and mobile banking interfaces and services, internet connections and network access. While we have performed due diligence procedures in selecting vendors, we do not control their actions. In the event that one or more of our vendors suffers a bankruptcy or otherwise becomes unable to continue to provide products or services, or fails to protect non-public personal information of our customers or employees, we may suffer operational impairments, reputational damage and financial losses. Replacing these third-party vendors could create significant delay and expense. Accordingly, use of such third parties creates an inherent risk to our business operations.

Risks Related to the Company's Common Stock

The stock market can be volatile, and fluctuations in our operating results and other factors could cause our stock price to decline.

The stock market has experienced, and may continue to experience, fluctuations that significantly impact the market prices of securities issued by many companies. Market fluctuations could adversely affect our stock price. These fluctuations have often been unrelated or disproportionate to the operating performance of particular companies. These broad market fluctuations, as well as general economic, systemic, political and market conditions, such as recessions, loss of investor confidence, or interest rate changes, may negatively affect the market price of our common stock. Moreover, our operating results may fluctuate and vary from period to period due to the risk factors set forth herein. As a result, period-to-period comparisons should not be relied upon as an indication of future performance. Our stock price could fluctuate significantly in response to the impact these risk factors have on our operating results or financial position.

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Our stock is thinly traded.

The average daily trading volume of our common stock is relatively small compared to many public companies. The desired market characteristics of depth, liquidity, and orderliness require the substantial presence of willing buyers and sellers in the marketplace at any given time. In our case, this presence depends on the individual decisions of a relatively small number of investors and general economic and market conditions over which we have no control. Due to the relatively small trading volume of our common stock, significant sales of our common stock, or the expectation of these sales, could cause the stock price to fall more than would be justified by the inherent worth of the Company. Conversely, attempts to purchase a significant amount of our stock could cause the market price to rise above the reasonable inherent worth of the Company.

There can be no assurances concerning continuing dividend payments.

Our common stockholders are only entitled to receive the dividends declared by our Board of Directors. Although we have historically paid annual dividends on our common stock, there can be no assurances that we will be able to continue to pay regular annual dividends or that any dividends we do declare will be in any particular amount. The primary source of money to pay our dividends comes from dividends paid to the Company by the Bank. The Bank’s ability to pay dividends to the Company is subject to, among other things, its earnings, financial condition and applicable regulations, which in some instances limit the amount that may be paid as dividends.

Item 1B. Unresolved Staff Comments

None.

Item 1C. Cybersecurity.

Description of Processes for Assessing, Identifying and Managing Cybersecurity Risks

Our operations are dependent on our ability to process financial transactions in a secure manner. Failure in or breach of our operational or security systems or infrastructure, or those of our third-party vendors and other service providers, could disrupt our business or the businesses of our customers, result in the disclosure or misuse of confidential or proprietary information, damage our reputation, increase our costs and cause losses.

We maintain a cybersecurity program for assessing, identifying and managing material risks from cybersecurity threats. This program includes processes that are modeled after the National Institute of Standards and Technology’s Cybersecurity Framework and focuses on using business drivers to guide cybersecurity activities. This program is managed by a team of full-time employees, overseen by our Information Services Security Officer, as part of our Information Services team. Our Information Services team is tasked with conducting our day-to-day information technology operations. Furthermore, we consider cybersecurity risks as part of, and have incorporated our cybersecurity program into, our overall risk management processes.

We seek to use a defense-in-depth approach for cybersecurity management, layers of technology, policies and training at all levels of the enterprise designed to keep our assets secure and operational. We use various processes as part of our efforts to maintain the confidentiality, integrity and availability of our systems, including security threat intelligence, incident response, identity and access management, endpoint extended detection and response protection, network segmentation, data encryption, and event monitoring. In an effort to validate the effectiveness of our cybersecurity program and assess such program’s compliance with legal and regulatory requirements, we engage third-party service providers to perform audits, assessments and penetration tests.

Cybersecurity awareness among our employees is promoted with regular training and awareness programs. All employees who have access to our systems are required to undergo annual cybersecurity training and, each year, our employees must review and acknowledge our cybersecurity policies. Further, our Information Systems team is trained to understand how to manage, use and protect personally identifiable information. User access controls have been implemented to limit unauthorized access to sensitive information and critical systems. Employees are required to use multifactor authentication and keep their passwords confidential, among other measures.

We recognize that third-party service providers may introduce cybersecurity risks. In an effort to mitigate these risks, before contracting with certain technology service providers, when possible, we conduct due diligence to evaluate their cybersecurity capabilities. Additionally, we endeavor to include cybersecurity requirements in our contracts with these providers and to require them to adhere to security standards and protocols.

Finally, we maintain cybersecurity insurance coverage.

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Impact of Risks from Cybersecurity Threats

While we have not been materially impacted by cyber incidents, we have been subject to other intentional cyber incidents from third parties over the last several years, including denial of service attacks which attempt to interrupt service to customers and malicious software attacks on computer systems which attempt to allow unauthorized entrance. We also face risks related to cyber attacks and other security breaches in connection with card transactions that typically involve the transmission of sensitive information regarding our customers through various third parties. Some of these parties have in the past been the target of security breaches and cyber attacks, and because the transactions involve third parties and environments that we do not control or secure, future security breaches or cyber attacks affecting any of these third parties could impact us through no fault of our own, and in some cases we may have exposure and suffer losses for breaches or attacks relating to them. We also rely on numerous other third party service providers to conduct other aspects of our business operations and face similar risks relating to them. While we conduct security assessments on our higher risk third party service providers, we cannot be sure that their information security protocols are sufficient to withstand a cyber attack or other security breach. There can be no assurance that cyber incidents will not occur, and they could occur more frequently and on a more significant scale. Although we have not experienced a cybersecurity incident that has materially affected our business strategy, results of operations, or financial condition, future cybersecurity threats or incidents could materially adversely affect our business strategy, results of operations, or financial condition.

Board of Directors’ Oversight and Management’s Role

Our Information Systems team is responsible for our efforts to comply with applicable cybersecurity standards, establish effective cybersecurity protocols and protect the integrity, confidentiality and availability of our Information Systems infrastructure. This team is responsible for cybersecurity threat prevention, detection, mitigation and remediation for the combined organization. Our cyber incident response plan requires all detections of suspicious activity in our Information Systems environment to escalate that activity to our Information Security Team who then evaluates the threat. Management (including representatives from the Legal, Operations, Human Resources, Information Systems and Risk Management departments) is notified by the Information Services team whenever a discovered cybersecurity incident may potentially have a significant impact on our business operations. Our Information Services Security Officer and other members of management responsible for cybersecurity risk management have experience in information security, technology operations, and risk management developed through prior work experience, professional training, and industry certifications.

Our Board of Directors has delegated the responsibility for the oversight of cybersecurity risks to the Information Security and Technology Committees, which are ultimately responsible for assessing and managing our material risks from cybersecurity threats. The Information Security team and the Information Security Committee provide periodic cybersecurity program updates to senior management and to the Board. Management also updates the Board as new risks are identified and the steps taken to mitigate such risks. Despite these efforts, our cybersecurity measures and those of our third-party service providers may not be effective in preventing, detecting, or mitigating all cybersecurity incidents or breaches.

Item 2. Properties

The Company's office and the main office of the Bank are located at 131 E. Main Street, Hills, Iowa. This is a brick building containing approximately 45,000 square feet. A portion of the building was built in 1977, a two-story addition was completed in 1984, and a two-story brick addition was completed in February 2001. The majority of the Bank’s operations and administrative functions are located in Hills, Iowa. The Bank operates its business from its main office and its 18 full service branches in the Iowa counties of Johnson, Linn, Washington and Iowa. The Bank owns its main office complex and 15 of its branch offices. Three of the Bank’s branches are leased.

All of the properties owned by the Bank are free and clear of any mortgages or other encumbrances of any type. See Note 16 to the Consolidated Financial Statements for minimum future rental commitments for leased properties.

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Item 3. Legal Proceedings

None.

Item 4. Mine Safety Disclosures

Not applicable.

PART II

As of January 31, 2026, the Company had 2,645 stockholders. There is no established trading market for the Company's common stock, and the Company's stock is not actively traded. Our common stock is not listed on the NASDAQ stock market or any other stock exchange. While there is no established public trading market for our common stock, our shares are currently quoted in the inter-dealer quotation, or “over-the-counter,” marketplace under the trading symbol “HBIA.” The principal over-the-counter market is operated by OTC Markets Group, Inc., which provides quotes for the Company on its OTCID.

The high and low bid information for the Company’s stock for each quarter of the two most recent fiscal years, as reported by OTC Market Groups, Inc., is provided below. The prices indicated reflect inter-dealer prices, without retail mark-up, mark-down or commission and may not necessarily represent actual transactions.

High Low High Low

In addition, based on the Company’s stock transfer records and information informally provided to the Company, stock trading transactions have been as follows:

(1)2025 transactions included repurchases by the Company of 202,541 shares of stock under the 2005 Stock Repurchase Program. 2025 transactions made under the 2005 Stock Repurchase Program were made at prices that ranged from $72.00 to $81.50 per share.

(2)2024 transactions included repurchases by the Company of 187,787 shares of stock under the 2005 Stock Repurchase Program. 2024 transactions made under the 2005 Stock Repurchase Program were made at prices that ranged from $66.00 to $72.00 per share.

(3)2023 transactions included repurchases by the Company of 111,866 shares of stock under the 2005 Stock Repurchase Program. 2023 transactions made under the 2005 Stock Repurchase Program were made at prices that ranged from $66.00 to $72.00 per share.

The Company currently pays an annual dividend on its common stock to stockholders, and it expects to continue to maintain its annual dividend for the foreseeable future periods.

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The following performance graph provides information regarding cumulative, five-year shareholder returns on an indexed basis of the Company's Common Stock compared to the NASDAQ Market Index prepared by MORNINGSTAR of Chicago, IL and a custom peer group of Midwest community banks. The latter index reflects the performance of bank holding companies operating principally in the Midwest in the following states: Iowa, Illinois, Kansas, Minnesota, Missouri, Nebraska, North Dakota, South Dakota and Wisconsin. The indexes assume the investment of $100 on December 31, 2020 in Company Common Stock, the NASDAQ Index and the Midwest Community Banks Index, with all dividends reinvested.

Note regarding the performance information above: Cumulative five-year Shareholder returns on an indexed basis. The indexes assume the investment of $100 in year with all dividends reinvested.

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The following table sets forth the Company’s equity compensation plan information as of December 31, 2025, all of which relates to stock options issued under stock option plans approved by stockholders of the Company:

Equity compensation plans approved by security holders 12,198 $ 68.85 151,376

Equity compensation plans not approved by security holders — — —

On July 26, 2005, the Company’s Board of Directors authorized a program to repurchase up to a total of 1,500,000 shares of the Company’s common stock (the “2005 Stock Repurchase Program”). On August 9, 2022, the Company's Board of Directors authorized the expansion of the 2005 Stock Repurchase Program to allow an additional 750,000 shares for repurchase and the continuation through December 31, 2027. The Company expects the purchases pursuant to the 2005 Stock Repurchase Program to be made from time to time in private transactions at a price equal to the most recent quarterly independent appraisal of the shares of the Company’s common stock and with the Board reviewing the overall results of the 2005 Stock Repurchase Program on a quarterly basis. All purchases made pursuant to the 2005 Stock Repurchase Program since its inception have been made on that basis. The amount and timing of stock repurchases will be based on various factors, such as the Board’s assessment of the Company’s capital structure and liquidity, the amount of interest shown by shareholders in selling shares of stock to the Company at their appraised value, and applicable regulatory, legal and accounting factors. The most recent independent current quarterly appraisal value of the stock performed as of December 31, 2025 is $87.50 a share.

The following table sets forth information about the Company’s stock purchases pursuant to the 2005 Stock Repurchase Program for the quarter ended December 31, 2025:

Item 6. [Reserved]

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The following discussion by management is presented regarding the financial results for the Company for the dates and periods indicated. The discussion should be read in conjunction with the consolidated financial statements and the accompanying notes thereto included or incorporated by reference elsewhere in this document. For a discussion on the comparison of results of operations for the years ended December 31, 2024 and 2023, refer to Item 7. “Management's Discussion and Analysis of Financial Condition and Results of Operation” in the Company’s Annual Form 10-K filed with the SEC on March 14, 2025.

An overview of the year 2025 is presented following the section discussing a special note regarding forward looking statements.

Special Note Regarding Forward Looking Statements

This report contains, and future oral and written statements of the Company and its management may contain, forward-looking statements within the meaning of such term in the Private Securities Litigation Reform Act of 1995 with respect to the financial condition, results of operations, plans, objectives, future performance and business of the Company. Actual results may differ materially from those included in the forward-looking statements. Forward-looking statements, which may be based upon beliefs, expectations and assumptions of the Company’s management and on information currently available to management, are generally identifiable by the use of words such as “believe,” “expect,” “anticipate,” “plan,” “intend,” “estimate,” “may,” “will,” “would,” “could,” “should” or other similar expressions. Additionally, all statements in this document, including forward-looking statements, speak only as of the date they are made, and the Company undertakes no obligation to update any statement in light of new information or future events.

The Company’s ability to predict results or the actual effect of future plans or strategies is inherently uncertain. Factors which could have a material adverse effect on the operations and future prospects of the Company include, but are not limited to, the following:

•The strength of the United States economy in general and the strength of the local economies in which the Company conducts its operations which may be less favorable than expected and may result in, among other things, a deterioration in the credit quality and value of the Company’s assets. This includes current concerns related to higher inflation, rising energy prices, geopolitical conflicts, and supply chain imbalances, including tariffs.

•The effects of financial market disruptions and/or an economic recession, and monetary and other governmental actions designed to address such disruptions, recession, or pandemics.

•The financial strength of the counterparties with which the Company or the Company’s customers do business and to which the Company has investment or financial exposure.

•The credit quality and credit agency ratings of the securities in the Company’s investment securities portfolio, a deterioration or downgrade of which could lead to change in the market value, the recognition of an allowance for credit losses on the affected securities and the recognition of a credit loss.

•The effects of, and changes in, laws, regulations and policies affecting banking, securities and monetary and financial matters as well as any laws otherwise affecting the Company, including, but not limited to, changes in U.S. tax laws and regulations.

•The effects of changes in interest rates (including the effects of changes in the rate of prepayments of the Company’s assets) and the policies of the Board of Governors of the Federal Reserve System.

•The ability of the Company to compete with other financial institutions as effectively as the Company currently intends due to increases in competitive pressures in the financial services sector.

•The ability of the Company to obtain new customers and to retain existing customers.

•The timely development and acceptance of products and services, including products and services offered through alternative electronic delivery channels.

•Technological changes implemented by the Company and by other parties, including third-party vendors, which may be more difficult or more expensive than anticipated or which may have unforeseen consequences to the Company and its customers.

•The ability of the Company to develop and maintain secure and reliable technology systems, including to detect and prevent the occurrence of fraudulent activity, breaches, or failures of our information security controls or cyber-security related incidents, including as a result of sophisticated attacks using artificial intelligence and similar tools.

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•The ability of the Company to retain key executives and employees and the difficulty that the Company may experience in replacing key executives and employees in an effective manner.

•Consumer spending and saving habits which may change in a manner that affects the Company’s business adversely.

•The economic impact of natural disasters, diseases and/or pandemics, and terrorist attacks and military actions.

•Business combinations and the integration of acquired businesses and assets which may be more difficult or expensive than expected.

•The costs, effects and outcomes of existing or future litigation.

•Changes in accounting policies and practices that may be adopted by state and federal regulatory agencies and the Financial Accounting Standards Board.

•The ability of the Company to manage the risks associated with the foregoing as well as anticipated.

These risks and uncertainties should be considered in evaluating forward-looking statements, and undue reliance should not be placed on such statements. Additional information concerning the Company and its business, including other factors that could materially affect the Company’s financial results, is included in the Company’s filings with the Securities and Exchange Commission.

Economic Environment

Through the end of 2025, incoming economic data per the Beige Book for the Company's region was little changed over the reporting period with an expected slight decline in activity over the next year. Consumer spending, construction and real estate demand rose slightly; employment was flat; business spending fell slightly; and manufacturing activity declined modestly. Prices rose moderately, wages were up modestly, and financial conditions loosened modestly. Net farm income in 2025 was similar to 2024.

Higher borrowing costs continue to present a risk to the economy, with consumer and business budgets accounting for higher interest costs. Interest rate levels and energy prices, in combination with global economic conditions, fiscal and monetary policy and the level of regulatory and government scrutiny of financial institutions will likely continue to impact our results in 2026 and beyond.

Our credit administration continues to closely monitor and analyze the higher risk segments within the loan portfolio, tracking loan payment deferrals, customer liquidity and providing timely reports to senior management and the board of directors. Based on the Company’s capital levels, prudent underwriting policies, loan concentration diversification and our geographic footprint, senior management is cautiously optimistic that the Company is positioned to continue managing the impact of the varied set of risks and uncertainties currently impacting the economy and remain adequately capitalized. However, the Company may be required to make additional credit loss provisions as warranted by economic conditions and continued migration in the loan portfolio towards the special mention risk rating category.

Overview

The Company is a bank holding company engaged, through its wholly-owned subsidiary bank, in the business of commercial banking. The Company’s subsidiary is Hills Bank and Trust Company, Hills, Iowa. The Bank was formed in Hills, Iowa in 1904. The Bank is a full-service commercial bank extending its services to individuals, businesses, governmental units and institutional customers primarily in the communities of Hills, Iowa City, Coralville, North Liberty, Lisbon, Mount Vernon, Kalona, Wellman, Cedar Rapids, Marion, Washington, and Williamsburg, Iowa.

Highlights with respect to items on the Company’s statement of income for the period ended December 31, 2025 included the following:

•The Company’s net income for 2025 was $60.50 million compared to $47.60 million in 2024 and $38.18 million in 2023.

•Diluted earnings per share were $6.81, $5.26, and $4.16 for the years ended December 31, 2025, 2024 and 2023, respectively.

•For the years ended December 31, 2025 and 2024, the Company achieved a net interest margin of 3.45% and 2.78%, respectively.

•For the year ended December 31, 2025, net interest income on a tax equivalent basis increased by $34.53 million.

•In 2025, interest income on a tax equivalent basis increased $30.50 million due to growth of $180.08 million in the Company's average earning assets and increased $19.49 million due to higher interest rates.

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•Interest expense decreased $4.02 million primarily due to decrease in interest rates.

Highlights with respect to items on the Company’s balance sheet as of December 31, 2025 included the following:

•Total assets were $4.648 billion, an increase of $59.63 million since December 31, 2024, primarily due to items below.

•Cash and cash equivalents were $42.11 million, a decrease of $81.29 million since December 31, 2024.

•Investment securities available for sale were $955.58 million, an increase of $11.45 million since December 31, 2024.

•Loans, net of allowance for credit losses and unamortized fees and costs, totaling $3.507 billion, an increase of $119.30 million since December 31, 2024. The increase is primarily attributable to increases of $87.79 million in 1 to 4 family first mortgages, $1.77 million in junior mortgages, $1.52 million in multi-family mortgages, $1.02 million in farmland mortgages and $67.10 million in commercial mortgages offset by decreases of $20.94 million in construction loans, and $3.30 million in commercial and financial loans. Loans held for sale increased $4.08 million since December 31, 2024.

•Deferred income tax assets were $18.47 million, a decrease of $2.67 million since December 31, 2024.

•Deposits increased $21.70 million in 2025 to $3.368 billion primarily due to an increase in noninterest-bearing deposits of $15.19 million and savings accounts of $114.26 million offset by a decrease of $10.36 million in NOW and other demand and $97.38 million in time deposits.

•Short-term borrowings increased $40.25 million as of December 31, 2025, primarily due to the increase in FHLB daily reset advances of $149.25 million offset by $109.00 million due to borrowings with the Bank Term Funding Program being paid off. FHLB borrowings decreased $62.72 million.

•Stockholders’ equity increased $55.55 million to $548.23 million in 2025, with dividends having been paid in 2025 of $10.32 million.

Reference is made to Note 14 of the Company’s consolidated financial statements for a discussion of fair value measurements which relate to methods used by the Company in recording certain assets and liabilities on its consolidated financial statements.

The return on average equity was 11.84% in 2025 compared to 10.00% in 2024. The Company remains well-capitalized as of December 31, 2025 with a CBLR of 12.94%. The minimum regulatory guideline is 9.00%. The Company paid a dividend per share of $1.15 in 2025, $1.10 per share in 2024 and $1.05 in 2023.

A detailed discussion of the financial position and results of operations follows this overview.

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Critical Accounting Policies

The Company's consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America. The financial information contained within these financial statements is, to a significant extent, financial information that is based on approximate measures of the financial effects of transactions and events that have already occurred. Based on its consideration of accounting policies that involve the most complex and subjective decisions and assessments, management has identified its most critical accounting policies to be those which are related to the allowance for credit losses.

The preparation of financial statements in accordance with the accounting principles generally accepted in the United States ("U.S. GAAP") requires management to make a number of judgments, estimates and assumptions that affect the reported amounts of assets, liabilities, income and expense in the financial statements. Various elements of our accounting policies, by their nature, involve the application of highly sensitive and judgmental estimates and assumptions. Some of these policies and estimates relate to matters that are highly complex and contain substantial inherent uncertainties. Management has made significant estimates in several areas, including the allowance for credit losses (see Note 3 - Loans and Note 2 - Securities) and the fair value of debt securities (see Note 2 - Securities).

We have identified the following accounting policies and estimates that, due to the inherent judgments and assumptions and the potential sensitivity of the financial statements to those judgments and assumptions, are critical to an understanding of our financial statements. We believe that the judgments, estimates and assumptions used in the preparation of the Company's financial statements are appropriate. For a further description of our accounting policies, see Note 1 - Summary of Significant Accounting Policies in the financial statements included in this Form 10-K.

Allowance for Credit Losses

The allowance for credit losses for loans represents management's estimate of all expected credit losses over the expected contractual life of our existing loan portfolio. Determining the appropriateness of the allowance is complex and requires judgment by management about the effect of matters that are inherently uncertain. Subsequent evaluations of the then-existing loan portfolio, in light of the factors then prevailing, may result in significant changes in the allowance for credit losses in those future periods.

We employ a disciplined process and methodology to establish our allowance for credit losses that has two basic components: first, an asset-specific component involving individual loans that do not share risk characteristics with other loans and the measurement of expected credit losses for such individual loans; and second, a pooled component for estimated expected credit losses for pools of loans that share similar risk characteristics.

Based upon this methodology, management establishes an asset-specific allowance for loans that do not share risk characteristics with other loans based on the amount of expected credit losses calculated on those loans and charges off amounts determined to be uncollectible. Factors we consider in determining if loans share similar risk characteristics include payment status, collateral value, borrower financial condition, guarantor support and the probability of collecting scheduled principal and interest payments when due.

When a loan does not share risk characteristics with other loans, we measure expected credit loss as the difference between the amortized cost basis in the loan and the present value of expected future cash flows discounted at the loan's effective interest rate except that, for collateral-dependent loans, credit loss is measured as the difference between the amortized cost basis in the loan and the fair value of the underlying collateral. The fair value of the collateral is adjusted for the estimated cost to sell if repayment or satisfaction of a loan is dependent on the sale (rather than only on the operation) of the collateral. In accordance with our appraisal policy, the fair value of collateral-dependent loans is based upon independent third-party appraisals or on collateral valuations prepared by in-house evaluations. Once a third-party appraisal is greater than one year old, or if its determined that market conditions, changes to the property, changes in intended use of the property or other factors indicate that an appraisal is no longer reliable, we perform an internal collateral valuation to assess whether a change in collateral value requires an additional adjustment to carrying value. When we receive an updated appraisal or collateral valuation, management reassesses the need for adjustments to the loan's expected credit loss measurements and, where appropriate, records an adjustment. If the calculated expected credit loss is determined to be permanent, fixed or nonrecoverable, the credit loss portion of the loan will be charged off against the allowance for credit losses. Loans designated having significantly increased credit risk are generally placed on nonaccrual and remain in that status until all principal and interest payments are current and the prospects for future payments in accordance with the loan agreement are reasonably assured, at which point the loan is returned to accrual status.

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In estimating the component of the allowance for credit losses for loans that share common risk characteristics, loans are segregated into loan classes. Loans are designated into loan classes based on loans pooled by product types and similar risk characteristics or areas of risk concentration. Credit loss assumptions are estimated using a model that categorizes loan pools based on loan type and purpose. This model calculates an expected life-of-loan loss percentage for each loan category by considering the probability of default using historical life-of-loan analysis periods for agricultural, 1 to 4 family first and junior liens, commercial and consumer segments, and the severity of loss, based on the aggregate net lifetime losses incurred per loan class.

To the extent the lives of the loans in the portfolio extend beyond the period for which a reasonable and supportable forecast can be made which management has determined to be four quarters, the bank reduces, on a straight-line basis over the remaining life of the loans, the adjustments so that model reverts back to the historical rates of default and severity of loss.

The component of the allowance for credit losses for loans that share common risk characteristics also considers factors for each loan class to adjust for differences between the historical period used to calculate historical default and loss severity rates and expected conditions over the remaining lives of the loans in the portfolio. Such factors are used to adjust the historical probabilities of default and severity of loss so that they reflect management expectation of future conditions based on a reasonable and supportable forecast.

Management utilizes a qualitative factor framework to provide a qualitative estimate of the expected credit losses inherent in the loan portfolio in relation to potential limitations of the quantitative model. The framework considers the following factors:

•Lending policies and procedures;

•International, national, regional and local economic business conditions and developments that affect the collectability of the portfolio, including the condition of various markets;

•The nature of the loan portfolio, including the terms of the loans;

•The experience, ability and depth of the lending management and other relevant staff;

•The volume and severity of past due and adversely classified or graded loans and the volume of nonaccrual loans;

•The quality of our loan review and process;

•The value of underlying collateral for collateral-dependent loans;

•The existence and effect of any concentrations of credit and changes in the level of such concentrations; and

•The effect of external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in the existing portfolio.

The framework provides for a level of risk approach to measure risk in each loan segment that may not be captured in the quantitative methodology, including improved risk environment, no additional risk, minimal additional risk, moderate risk and major or significant additional risk. The framework also includes a weighting component for management to consider which qualitative factors would have the highest impact on potential loan losses within each loan segment. Management uses the qualitative factor framework within the allowance for credit losses calculation to assess the risk level environment for each qualitative factor and weightings for each loan segment which is supported by various information including publicly available information, internal information specifically developed by management, or other relevant and reliable information.

The credit loss expense recorded through earnings is the amount necessary to maintain the allowance for credit losses at the amount of expected credit losses inherent within the loans held for investment portfolio. The amount of expense and the corresponding level of allowance for credit losses for loans are based on our evaluation of the collectability of the loan portfolio based on historical loss experience, reasonable and supportable forecasts, and other significant qualitative and quantitative factors.

The allowance for credit losses for loans, as reported in our consolidated balance sheet, is adjusted by a credit loss expense, which is recognized in earnings, and reduced by the charge-off of loan amounts, net of recoveries. For further information on the allowance for credit losses for loans, see Note 1 - Summary of Significant Accounting Policies and Note 3 - Loans in the notes to the financial statements of this Form 10-K.

This discussion of the Company’s critical accounting policies should be read in conjunction with the Company’s consolidated financial statements and the accompanying notes presented elsewhere herein, as well as other relevant portions of Management’s Discussion and Analysis of Financial Condition and Results of Operations.

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Financial Position

The following table presents select lines from the consolidated balance sheets in Item 5, with the addition of the periods ended December 31, 2023, 2022, and 2021.

(Amounts In Thousands)

(1)Investment securities includes stock of FHLB.

Total assets at December 31, 2025 increased $59.63 million, or 1.30%, from the prior year-end. This was primarily due to net loans which increased $119.30 million for the year ended December 31, 2025 compared to the prior year. Loans held for sale to the secondary market increased $4.08 million for the year ended December 31, 2025. Loans held for investment represent the largest component of the Bank’s earning assets. Loans held for investment were $3.565 billion and $3.438 billion at December 31, 2025 and 2024, respectively.

Loans held for investment increased in 2025 compared to 2024. This was primarily due to increases of $87.79 million in 1 to 4 family first mortgages, $1.77 million in junior mortgages, $1.52 million in multi-family mortgages, $1.02 million in farmland mortgages and $67.10 million in commercial mortgages offset by declines of $20.94 million in construction loans, $3.30 million in commercial and financial loans. Increases in commercial mortgages and commercial real estate were primarily due to the completion of large construction projects that were put on permanent financing during 2025. Given the current economic environment and the potential for lower interest rates, the increase in net loans in 2025 may continue into 2026.

On a net basis, the Company originated $130.48 million in loans to customers for the year ended December 31, 2025 compared to loans originated of $3.66 million for the year ended December 31, 2024. The Company has not historically engaged in significant participation activity and does not purchase participations from outside its established trade area. The Company’s policy allows for the purchase or sale of participations related to existing customers or to participate in community development activity. The Company held participations purchased of $15.58 million, $16.52 million and $17.04 million as of December 31, 2025, 2024 and 2023, respectively. The participations purchased were less than one percent of loans held for investment for each of the three years.

The loan composition in 2025 remained relatively the same compared to 2024 as follows. Residential real estate loans, including first and junior liens, were $1.405 billion and $1.316 billion as of December 31, 2025 and 2024, respectively. Residential real estate loans increased 6.81% in 2025 and decreased 3.60% in 2024. Residential real estate loans were 39.42% of the loan portfolio at December 31, 2025 and 38.27% at December 31, 2024. Agricultural loans, including production and mortgages, were $395.71 million and $394.45 million as of December 31, 2025 and 2024, respectively, an increase of 0.32% in 2025 compared to 2024. Agricultural loans represented 11.10% and 11.47% of the Company's loan portfolio as of December 31, 2025 and 2024, respectively. Construction loans were $338.10 million and $359.04 million as of December 31, 2025 and 2024, respectively, a decrease of 5.83% in 2025 compared to 2024. Construction loans represented 9.48% and 10.44% of the Company's loan portfolio as of December 31, 2025 and 2024, respectively. Commercial and financial loans were $295.62 million and $298.92 million as of December 31, 2025 and 2024, respectively, a decrease of 1.10% in 2025 compared to 2024. Commercial and financial loans represented 8.29% and 8.69% of the Company's loan portfolio as of December 31, 2025 and 2024, respectively. Multi-family real estate loans were $494.28 million and $492.76 million as of December 31, 2025 and 2024, respectively, an increase of 0.31% in 2025 compared to 2024. Multi-family real estate loans represented 13.87% and 14.33% of the Company's loan portfolio as of December 31, 2025 and 2024, respectively. Commercial real estate loans totaled $565.18 million at December 31, 2025, a 13.47% increase over the December 31, 2024 total of $498.08 million. Commercial real estate loans represented 15.85% and 14.49% of the Company’s loan portfolio as of December 31, 2025 and 2024, respectively. The

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Company monitors its commercial real estate level so that it does not have a concentration in that category that exceeds 300% of its capital. Commercial real estate loan concentration was 171.72% of risk based capital as of December 31, 2025.

The following table shows the composition of loans (before deducting the allowance for credit losses) as of December 31 for each of the last five years. The table does not include loans held for sale to the secondary market.

Real estate:

There were no foreign loans outstanding for any of the years presented.

The following table shows the remaining maturity of loans as of December 31, 2025. Maturities are based upon contractual dates.

(Amounts In Thousands)

The types of interest rates applicable to these maturities are shown below:

(1)A significant portion of the commercial loans are due in one year or less. A significant percentage of the loans will be re-evaluated prior to their maturity and are likely to be extended.

(2)Commercial, multi-family, construction 1 to 4 family residential, construction land development and commercial, and agricultural real estate loans are reflected in the Commercial and Agricultural total.

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(3)Certain adjustable‐rate mortgage loans (“ARMs”) are included in the variable‐rate category in later maturity periods because these loans contractually reprice from fixed to variable interest rates following their initial fixed‐rate periods (generally 3, 5, 7, or 10 years). Prior to repricing, these loans bear fixed interest rates. The table reflects interest rate characteristics based on contractual terms over the remaining maturities rather than interest rates in effect as of the balance‐sheet date.

The overall economy in the Company’s trade area, Johnson, Linn, Washington, and Iowa Counties, remains in stable condition with levels of unemployment below national and state levels. The following table shows unemployment and estimated median income information as of December 31, 2025, 2024 and 2023.

Unemployment Rate % Median Income

Competition for quality loans and deposits may continue to be a challenge. The increased competition for both loans and deposits could result in a lower interest rate margin that could result in lower net interest income if the volume of loans and deposits does not increase to offset any such reduction in the interest margin.

Total deposits increased by $21.70 million in 2025 compared to an increase of $63.35 million in 2024. As of June 30, 2025 (latest data available from the FDIC), Johnson County total deposits for all financial institutions were $13.408 billion and the Company’s deposits were $2.271 billion, which represent a 16.94% market share. At June 30, 2024, the Company’s deposits were $2.196 billion or a 16.21% market share. The Company had nine office locations in Johnson County as of June 30, 2025. The total number of banking locations in Johnson County were 47 as of June 30, 2025. Linn County total deposits for all financial institutions were $8.790 billion as of June 30, 2025 and there were 97 total banking locations in the county. The seven Linn County offices of the Company had deposits of $714.92 million or a 8.13% share of the market. The Company’s Linn County deposits at June 30, 2024 were $703.72 million and represented a 8.18% market share. As of June 30, 2025, the Company’s three Washington County offices had deposits of $336.77 million which was 34.04% of the county’s total deposits of $989.42 million. Washington County had a total of 13 banking locations as of June 30, 2025. In 2024, the Company’s Washington County deposits were $335.02 million or a 34.25% market share. The company's one location in Iowa County had deposits of $14.03 million which was 3.22% of the county's total deposits of $435.74 million. Iowa County had a total of 10 banking locations as of June 30, 2025. This branch was opened in November 2024.

The following tables show the amounts of the Company's average deposits and average rates paid on such deposits for the years ended December 31, 2025, 2024 and 2023 and the composition of the certificates of deposit issued in denominations in excess of $250,000 as of December 31, 2025, 2024 and 2023:

December 31,

(Amounts In Thousands)

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Time certificates issued in amounts of $250,000 or more with maturity in:

(Amounts In Thousands)

Portion uninsured $ 90,190

Investment securities increased $15.49 million in 2025 compared to an increase of $176.99 million in 2024. The investment portfolio consists of $955.58 million of securities that are stated at fair value, with any unrealized gain or loss, net of income taxes, reported as a separate component of stockholders’ equity. The securities portfolio is used for liquidity and pledging purposes and to provide a rate of return that is acceptable to management. The Company completed a balance sheet repositioning related to its investment securities portfolio at the end of 2025. This consisted of multiple sales of lower-yielding AFS debt securities in 2025, resulting in a pre-tax realized loss on the sales of $9.63 million in total. The sale of these securities was done for the sole purpose of an investment portfolio repositioning.

The following tables show the carrying value of the investment securities held by the Bank, including stock of the Federal Home Loan Bank, as of December 31, 2025, 2024 and 2023 and the maturities and weighted average yields of the investment securities, computed using amortized cost on a tax-equivalent basis using a federal tax rate of 21%, as of December 31, 2025:

December 31,

(Amounts In Thousands)

Carrying value:

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CarryingValue WeightedAverageYield

(Amounts In Thousands)

U.S. Treasury, maturities:

From 5 to 10 years — —

U.S. Government Agency and GSE securities, maturities:

Stock of the Federal Home Loan Bank $ 32,063 9.44 %

State and political subdivisions, maturities:

Mortgage Backed Securities and Collateralized Mortgage Obligations, maturities:

As of December 31, 2025, the Company held no investment securities exceeding 10% of stockholders’ equity, other than securities of the U.S. Government agencies and corporations. The Company does not hold any investments in FNMA preferred stock, any pooled trust preferred stocks or other preferred stock type investments. See Note 2 to the Company’s Consolidated Financial Statements.

During 2025 and 2024, the major funding source for loans and other assets, aside from deposits within the Company's trade area, were from short-term borrowings, primarily FHLB daily reset advances, in addition to FHLB borrowings. Brokered deposits totaled $35.17 million and $34.75 million as of December 31, 2025 and 2024, respectively. Total advances from the FHLB were $64.33 million at December 31, 2025 and $127.05 million in 2024. Total FHLB daily reset advances were $586.88 million as of December 31, 2025 and $437.64 million as of December 31, 2024. There was $109.00 million in funds borrowed from the Bank Term Funding Program as December 31, 2024 and was paid off during 2025. Federal funds purchased and FHLB funding sources are considered when loan growth exceeds core deposit increases and the interest rates on funds borrowed from the FHLB or other sources are favorable compared to other funding alternatives.

Stockholders’ equity was $548.23 million at December 31, 2025 compared to $492.69 million at December 31, 2024. The Company’s capital resources are discussed in detail in the Liquidity and Capital Resources section. Over the last five years, the Company has realized cumulative earnings of $242.12 million and paid shareholders dividends of $48.13 million, or 19.88% of earnings, while maintaining capital ratios in excess of regulatory requirements.

The following table presents the return on average assets, return on average stockholders' equity, the dividend payout ratio and average stockholders’ equity to average assets ratio for the years ended December 31, 2025, 2024 and 2023:

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Average stockholders' equity to average assets ratio 11.14 10.88 10.72

Net Income Overview

Net income and diluted earnings per share for the last three years are as presented below:

Year Net Income % (Decrease) Increase Earnings PerShare - Diluted

(In Thousands)

Net income for 2025 increased by $12.90 million or 27.09% and diluted earnings per share increased by 29.47%. In 2025, net interest income, before credit loss expense, increased by $34.36 million due to the increase in interest income of $30.33 million primarily due to higher loan and investment balances and higher interest rates. Noninterest income, excluding loss on sale of investment securities, increased by $1.94 million primarily due to increased trust fees and other noninterest income. The credit loss expense increased by $10.12 million and total noninterest expenses increased by $6.28 million primarily due to an increase in outside services, loss on disposal of property and equipment, and salaries and employee benefits.

Annual fluctuations in the Company's net income are driven primarily by four factors. The first factor is credit loss expense. The majority of the Company's interest earning assets are in loans outstanding, which were $3.565 billion at December 31, 2025. Credit loss expense was $12.33 million in 2025 compared to $2.21 million in 2024. Because the majority of the Company’s interest‐earning assets are comprised of loans, the level of credit loss expense can vary from year to year based on changes in the loan portfolio and the credit environment. In 2025, credit loss expense increased compared to the prior year largely due to updated economic expectations, growth in outstanding loan balances, and movements in model‐driven assumptions. These included shifts in economic outlook, changes in borrower payment behaviors, and adjustments to qualitative considerations reflecting portfolio trends and overall credit conditions. In addition, net charge‐off activity contributed to higher estimated loss rates for the year. The Company expects that future credit loss expense will continue to be influenced by loan growth, changes in economic conditions within its markets, and trends in asset quality.

The second factor affecting the Company’s net income is the interaction between changes in net interest margin and changes in average volumes of the Company's earnings assets. Net interest income of $150.18 million for 2025 was derived from the Company’s $4.461 billion of average earning assets and its tax-equivalent net interest margin of 3.45%. Average earning assets in 2024 were $4.281 billion and the tax-equivalent net interest margin was 2.78%. Net interest income for the Company increased primarily as a result of interest income on higher loan and investment balances and rates. Interest expense decreased from decreased interest rates on borrowings, certificates of deposit, and interest-bearing deposits. The Company believes growth in net interest income will be contingent on the growth of the Company’s earning assets, increasing yield on loans and the ongoing interest rate stance of the Federal Reserve Board.

The third factor affecting the Company’s net income is noninterest income, primarily the increase in trust fees. Trust fees were $17.14 million and $15.26 million for the years ended December 31, 2025 and 2024, respectively, an increase of 12.32%. This is primarily driven by the increase in assets under management of $400.74 million from $2.912 billion as of December 31, 2024 to $3.313 billion as of December 31, 2025, an increase of 13.77%. See the Noninterest Income section later in Item 7.

The fourth factor affecting the Company’s net income is noninterest expenses, primarily the increase in other noninterest expenses. See the Noninterest Expenses section later in Item 7.

For the overview discussion of the comparison of the Company’s results of operations for the fiscal year ended December 31, 2024 to the year ended December 31, 2023, please refer to Part II, Item 7, "Management’s Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed with the SEC on March 14, 2025.

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Net Interest Income

Net interest income is the excess of the interest and fees received on interest-earning assets over the interest paid on the interest-bearing liabilities. The factors that have the greatest impact on net interest income are the volume of average earning assets and interest-bearing liabilities and the net interest margin. The volume of average earning assets has continued to grow each year, primarily due to higher loan and investment balances in 2025. The volume of interest-bearing liabilities increased in 2025 primarily due to an increase in deposits. Interest expense on interest-bearing deposits, certificates of deposit and borrowings decreased from 2024. The net interest margin was 3.45% in 2025, 2.78% in 2024 and 2.86% in 2023. Management believes the increase in net interest income and margin in 2025 reflects a combination of balance-sheet repositioning, changes in funding mix, and interest-rate dynamics that may not recur to the same extent in future periods, and future net interest income will depend primarily on loan and deposit growth and pricing, and the direction of market interest rates. The measure is shown on a tax-equivalent basis using a rate of 21% for 2025, 2024 and 2023 to make the interest earned on taxable and nontaxable assets more comparable. Interest income and expense for 2025, 2024 and 2023 are indicated on the following table:

Years Ended December 31,

(Amounts In Thousands)

Income:

Interest-bearing cash and cash equivalents 468 1,355 829

Expense:

(1) Presented on a tax equivalent basis using a rate of 21% for 2025, 2024 and 2023. Interest income includes certain loan origination and document preparation fees, which comprise approximately 1.25% of the amounts indicated.

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Net interest income on a tax-equivalent basis changed in 2025 as follows:

Change In Change In Increase (Decrease)

AverageBalance AverageRate VolumeChanges RateChanges NetChange

(Amounts In Thousands)

Interest income:

Interest expense:

Rate/volume variances are allocated on a consistent basis using the absolute values of changes in volume compared to the absolute values of the changes in rates. Loan fees included in interest income are not material. Interest on nontaxable securities and loans is shown at tax equivalent amounts.

Net interest income on a tax equivalent basis changed in 2024 as follows:

Change In Average Balance Change In Average Rate Increase (Decrease)

VolumeChanges RateChanges NetChange

(Amounts In Thousands)

Interest income:

Interest expense:

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A summary of the average yields, average rates paid, net interest spread and margin is as follows:

Years Ended December 31,

Average yields:

Nontaxable securities (tax equivalent basis) 3.72 3.47 2.64

Interest-bearing cash and cash equivalents 4.40 5.82 5.32

Average rates paid:

Interest-bearing demand deposits 1.32 1.49 1.05

Yield on average interest-earning assets 5.30 4.82 4.27

Rate on average interest-bearing liabilities 2.45 2.68 1.90

(1)Non-accruing loans have been included in the average loan balances for purposes of this computation.

(2)Net interest spread is the difference between the yield on average interest-earning assets and the yield on average interest-paying liabilities stated on a tax equivalent basis using a federal rate of 21% for 2025, 2024 and 2023. The net interest spread increased 71 basis points in 2025 compared to 2024 and the net interest spread decreased 23 basis points in 2024 compared to 2023.

(3)Net interest margin is net interest income, on a tax equivalent basis, divided by average interest-earning assets. The net interest margin increased 67 basis points in 2025. The net interest margin decreased 8 basis points in 2024 compared to 2023.

The Federal Open Market Committee met eight times during 2025. The federal funds target rate decreased to 3.75% as of December 31, 2025 from 4.50% as of December 31, 2024. Interest rates on loans are generally affected by the target rate since interest rates for the U.S. Treasury market normally correlate to the Federal Reserve Board federal funds rate. In the pricing of loans and deposits, the Bank considers the U.S. Treasury indexes as benchmarks in determining interest rates. As of December 31, 2025, the average rate indexes for the one, three and five year indexes were 3.48%, 3.55% and 3.73%, respectively. The one year index decreased 16.35% compared to December 31, 2024, the one, three and five year indexes were 4.16%, 4.27% and 4.38%, respectively.

Current Expected Credit Losses and Allowance for Credit Losses (ACL)

Credit loss expense was $12.33 million for the year ended December 31, 2025 compared to expense of $2.21 million in 2024, an increase of expense of $10.12 million. The credit loss expense includes an increase of expense of $1.60 million related to the ACL on off-balance sheet credit exposures for the year ended December 31, 2025 compared to $2.21 million benefit for 2024. Credit loss expense is the amount necessary to adjust the allowance for credit losses to the level considered by management to appropriately account for the estimated current expected credit losses within the Bank's loan portfolio. Also, under CECL, a significant component in estimating expected credit losses are economic forecasts such as Iowa unemployment and National real gross domestic product (GDP). The Company believes that credit loss expense is expected to be dependent on the Company’s loan growth, local economic conditions and asset quality. The percentage of the allowance to outstanding loans was 1.63% and 1.48% at December 31, 2025 and 2024, respectively. The credit loss expense was $12.33 million in 2025, and $2.21 million in 2024 and $15.62 million in 2023. Loan charge-offs net of recoveries were $3.46 million in 2025, loan charge-offs net of recoveries were $2.89 million in 2024 and loan recoveries net of charge-offs were $6.97 million in 2023. Management has determined that the allowance for credit losses was appropriate at December 31, 2025, and that the loan portfolio is diversified and secured, without undue concentration in any specific risk area. This process involves a high degree

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of management judgment. However, the allowance for credit losses is based on a comprehensive and well-documented applied analysis of the Company’s loan portfolio. This analysis takes into consideration all available information existing as of the financial statement date, including environmental factors such as economic, industry, geographical and political factors. The relative level of allowance for credit losses is reviewed and compared to industry peers. This review encompasses levels of total nonperforming loans and overall levels of net charge-offs. However, there is no assurance losses will not exceed the allowance, and any growth in the loan portfolio or uncertainty in the general economy will require that management continue to evaluate the adequacy of the ACL and make additional provisions in future periods as deemed necessary.

Through the credit risk rating process, loans are reviewed to determine if they are performing in accordance with the original contractual terms. If the borrower has failed to comply with the original contractual terms, further action may be required by the Company, including a downgrade in the credit risk rating, movement to nonaccrual status, a charge-off or the establishment of a specific reserve. In the event a collateral shortfall is identified during the credit review process, the Company will work with the borrower for a principal reduction payment and/or a pledge of additional collateral and/or additional guarantees. In the event that these options are not available, the loan may be subject to a downgrade of the credit risk rating. If we determine that a loan amount, or portion thereof, is uncollectible, the loan’s credit risk rating is immediately downgraded and the uncollectible amount is charged-off. The Bank’s credit and legal departments undertake a thorough and ongoing analysis to determine if an additional specific reserve and/or charge-offs are appropriate and to begin a workout plan for the loan to minimize realized loss.

In certain circumstances, the Bank may modify various terms of a loan to maximize the collection of amounts due. Refer to Note 3 for a summary of modifications made to loans in 2025 and 2024. Generally, the borrower is experiencing financial difficulties, so concessionary modification is granted to the borrower that otherwise would not be considered.

The Bank regularly reviews loans in the portfolio and assesses whether the loans are nonperforming. If the loans are nonperforming, the Bank determines if a specific reserve is appropriate. In addition, the Bank's management also reviews and, where determined necessary, provides allowances for particular loans based upon (1) reviews of specific borrowers and (2) management’s assessment of areas that management considers are of higher credit risk, including loans that have been modified.

Collateral-dependent loans decreased $2.06 million from December 31, 2024 to December 31, 2025. Collateral-dependent loans include any loan that has been placed on nonaccrual status, accruing loans past due 90 days or more and loans made to borrowers with financial difficulties. Collateral-dependent loans also include loans that, based on management’s evaluation of current information and events, the Company expects to be unable to collect in full according to the contractual terms of the original loan agreement. Collateral-dependent loans were 0.88% of loans held for investment as of December 31, 2025 and 0.97% as of December 31, 2024. The decrease in collateral-dependent loans is primarily due to a decrease in nonaccrual loans of $6.31 million. There were no significant changes noted in the extent to which collateral secures collateral-dependent loans. A description of the Bank's credit quality indicators are discussed in Note 3 to the Company's Consolidated Financial Statements.

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The following table summarizes the Company's collateral dependent loans and non-performing assets as of December 31 for each of the years presented:

(Amounts In Thousands)

(1)The accruing loans past due 90 days or more are still believed to be adequately collateralized. Loans are placed on nonaccrual status when management believes the collection of future principal and interest is not reasonably assured.

(2)Total TDR loans were $7.66 million and $10.20 million as of December 31, 2022 and 2021, respectively. Included in the total nonaccrual loans were $1.75 million and $2.28 million of TDR loans as of December 31, 2022 and 2021, respectively.

The ratio of allowance for credit losses to non-performing loans increased to 197.54% as of December 31, 2025 compared to 152.08% as of December 31, 2024. The increase in 2025 is primarily due to the increase in the allowance for credit losses and the decrease in nonaccrual loans compared to 2024. The ratio of non-performing loans to total gross loans was 0.83% and 0.97% at December 31, 2025 and 2024, respectively. The decrease in the 2025 ratio is primarily due to the decrease in nonaccrual loans.

Other factors that are considered in determining the credit quality of the Company’s loan portfolio are the vacancy rates for both residential and commercial space, current equity the borrower has in the property and overall financial strength of the customer including cash flow to continue to fund loan payments. The Company also considers the state of the total economy including unemployment levels. In most instances, the borrowers have used in their rental projections of income at least a 10.00% vacancy rate. As of December 31, 2025, the unemployment levels in Johnson County and Linn County were 2.40% and 3.40%, respectively, compared to 2.20% and 3.20% in December of 2024. These levels compare favorably to the State of Iowa at 3.50% and the national unemployment level at 4.40% in December 2025 compared to 3.20% and 4.10%, respectively in December 2024.

The State of Iowa vacancy rate is 7.30% and the national rate is 7.20% with the Midwest rate at 7.20%. These vacancy rates one year ago were 8.40%, 6.90% and 7.20%, respectively, so are slightly lowered compared to the prior year. The Company continues to consider those vacancy rates among other factors in its current evaluation of the real estate portion of its loan portfolio. Vacancy rates may continue to rise in 2026 and affect the overall quality of the loan portfolio.

See Note 3 to the Company's Consolidated Financial Statements for additional disclosures on loans.

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SUMMARY OF CREDIT LOSS EXPERIENCE ON LOANS

The allowance for credit losses is also affected by the charge-offs and recoveries for the periods presented. For the years ended December 31, 2025, 2024 and 2023, recoveries were $3.53 million, $3.99 million, and $1.67 million, respectively; charge-offs were $6.99 million, $6.88 million, and $8.64 million in 2025, 2024 and 2023, respectively.

Overall credit quality may deteriorate in 2026. Such deterioration could cause increases in non-performing loans, allowance for credit losses, credit loss expense and net charge-offs. Management will monitor changing market conditions as a part of its allowance for credit loss methodology. The following table summarizes the Bank's credit loss experience on loans for the years ended December 31 for each of the years presented:

(Amounts In Thousands)

Allowance for credit losses:

(Amounts In Thousands)

Allowance for credit losses:

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(Amounts In Thousands)

Allowance for credit losses:

(Amounts In Thousands)

Allowance for credit losses:

(Amounts In Thousands)

Allowance for credit losses:

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ALLOCATION OF THE ALLOWANCE FOR CREDIT LOSSES

The following table presents the allowance for credit losses by type of loans, the percentage of the allocation for each category to the total allowance and the percentage of all loans in each category to total loans as of December 31, 2025, 2024, 2023, 2022 and 2021:

(In Thousands) (In Thousands)

Real estate:

Real estate:

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Amount % of Total Allowance % of Loansto Total Loans

(In Thousands)

Real estate:

Construction, land development and commercial 1,482 4.18 4.77

Obligations of state and political subdivisions 440 1.24 1.88

The Company believes that the allowance for credit losses is at a level commensurate with the overall risk exposure of the loan portfolio. However, if economic conditions deteriorate, certain borrowers may experience difficulty and the level of non-performing loans, charge-offs and delinquencies could rise and require increases in the allowance for credit losses. The Company will continue to monitor the adequacy of the allowance on a quarterly basis and will consider the impact of economic conditions on the borrowers’ ability to repay, loan collateral values, past collection experience, the risk characteristics of the loan portfolio and such other factors that deserve current recognition.

Noninterest Income

The following table sets forth the various categories of noninterest income for the years ended December 31, 2025, 2024 and 2023.

Year Ended December 31, $ Change % Change

(Amounts in thousands)

The noninterest income of the Company was $24.35 million in 2025 compared to $26.82 million in 2024. The decrease of $2.47 million in 2025 was the result of a combination of factors discussed below.

The net gain on the sale of loans was $1.64 million and $2.34 million for the years ended December 31, 2025 and 2024, respectively, a decrease of 30.10% for the year ended December 31, 2025 compared to the same period in 2024. The amount of the net gain on sale of secondary market mortgage loans in each year can vary significantly. The volume of activity in these types of loans is directly related to the level of interest rates as well as the current origination and refinancing activity. The

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servicing of the loans sold into the secondary market is not retained by the Company so these loans do not provide an ongoing stream of income.

Trust fees were $17.14 million and $15.26 million for the years ended December 31, 2025 and 2024, respectively, an increase of 12.32% for the year ended December 31, 2025 compared to the same period in 2024. This is primarily driven by the increase in assets under management of $400.74 million from $2.912 billion as of December 31, 2024 to $3.313 billion as of December 31, 2025 and increased investment transaction activity. The trust assets that are the most volatile are those that are held in common stocks, which amount to approximately 65% of assets under management. In 2025, the Dow Jones Industrial Average increased 12.97%.

The Company completed a balance sheet repositioning related to its investment securities portfolio at the end of 2025. This consisted of multiple sales of lower-yielding AFS debt securities in 2025, resulting in a pre-tax realized loss on the sales of $9.63 million in total. The sale of these securities was done for the sole purpose of an investment portfolio repositioning. The securities sales executed as part of the Company’s balance sheet repositioning strategy in 2025 resulted in realized losses recognized in earnings, while also contributing to the improvement in accumulated other comprehensive loss and positioning the investment portfolio for enhanced yield and reduced interest rate sensitivity in future periods. Management does not currently anticipate additional material balance-sheet repositioning losses of a similar magnitude.

Other noninterest income categories experienced marginal period-to-period fluctuations for the year ended December 31, 2025.

Noninterest Expenses

The following table sets forth the various categories of noninterest expenses for the year ended December 31, 2025, 2024 and 2023.

Year Ended December 31, $ Change % Change

(Amounts in thousands)

Loss on disposal of property and equipment 1,071 — — 1,071 — 100.00 —

Total noninterest expenses were $86.51 million and $80.23 million for the years ended December 31, 2025 and 2024, respectively. The increase is $6.28 million or 7.83% in 2025 and an increase of $1.84 million or 2.34% in 2024.

Salaries and employee benefits increased $1.63 million or 3.65% in 2025 primarily due to annual salary adjustments.

Occupancy expenses increased $422,000 or 9.89% in 2025. The primary reasons for the increase are increased bank building ground maintenance and bank building repairs and maintenance.

Furniture, equipment and software increased $699,000 or 10.34% in 2025. This is primarily due to the yearly rate increase in software maintenance contracts.

The amounts for 2025 include a loss on disposal of property and equipment of $1.07 million as a result of prior period property and equipment disposals of $36.47 million which were corrected in the current period and are discussed further in Note 1.

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Outside services increased $2.49 million or 17.77% in 2025. This is primarily driven by $1.11 million increase of professional fees related to internal control testing and improvements. Additional increases were a $487,000 increase in debit card and data processing expenses as well as a $434,000 increase in other real estate owned losses over the prior year end.

Other noninterest expense categories experienced marginal period-to-period fluctuations for the year ended December 31, 2025.

Income Taxes

Income tax expense was $15.19 million, $12.60 million, and $10.30 million for the years ended December 31, 2025, 2024 and 2023, respectively. Income taxes as a percentage of income before income taxes were 20.07% in 2025, 20.93% in 2024 and 21.24% in 2023. See Note 11 Income Taxes for additional information.

Effects of Inflation

The consolidated financial statements and the accompanying notes have been prepared in accordance with accounting principles generally accepted in the United States of America. These principles require the measurement of financial position and operating results in terms of historical dollar amounts without considering the changes in the relative purchasing power of money over time due to inflation. The impact of inflation is reflected in the increased cost of the Company’s operations. Nearly all of the assets and liabilities of the Company are monetary in nature. As a result, interest rates have a more significant impact in the Company’s performance than do the effects of general levels of inflation. Interest rates do not necessarily move in the same direction or to the same extent as the price of goods and services. Liquidity and interest rate adjustments are features of the Company’s asset/liability management, which are important to the maintenance of acceptable performance levels. Item 7A of this Form 10-K contains a more thorough discussion of interest rate risk. The Company attempts to maintain a balance between monetary assets and monetary liabilities to offset the potential effects of changing interest rates.

Liquidity and Capital Resources

The objective of liquidity management is to ensure the availability of sufficient cash flows to fund operations, to meet depositor withdrawals, to provide for our customers' credit needs and to meet maturing obligations and existing commitments. The Company's principal source of funds is deposits. Other sources include loan principal repayments, proceeds from the maturity and sale of investment securities, federal funds purchased, advances from the FHLB, advances on bank lines of credit, brokered deposit relationships and funds provided by operations. Liquidity management is conducted on both a daily and a long-term basis. Investments in liquid assets are adjusted based on expected loan demand, projected loan and investment securities maturities and payments, expected deposit flows and the objectives set by the Company's asset-liability management, liquidity and contingency funding policies.

The Company has historically maintained a stable deposit base and a relatively low level of large deposits, which has mitigated the volatility in the Company’s liquidity position. Deposit inflows and outflows can vary widely based on prevailing market interest rates, competition, economic conditions, our business customers' liquidity needs and by recent developments in the financial services industry. Uninsured deposits as of December 31, 2025 and 2024 were approximately $733.97 million and $719.62 million, respectively, which comprised 21.79% and 21.51% of total deposits.

As of December 31, 2025, the Company had additional borrowing capacity available from the FHLB of $986.75 million. The Company had $64.33 million outstanding in FHLB borrowings as of December 31, 2025 with maturities through 2030. The Company also had $586.88 million outstanding in FHLB daily reset advances as of December 31, 2025. In addition, the Company had $175.00 million in borrowing capacity available through secured and unsecured lines of credit with correspondent banks with no borrowings under those federal funds lines as of December 31, 2025. During 2025 the Company paid off its outstanding balance of $109.00 million in the Bank Term Funding Program. Finally, the Company had $105.54 million in borrowing capacity available through the Federal Reserve Discount Window with no borrowings as of December 31, 2025.

On an unconsolidated basis, the Company had cash balances of $2.96 million as of December 31, 2025. In 2025, the Company received dividends of $26.32 million from its subsidiary Bank and used those funds to pay dividends to its stockholders of $10.32 million and to fund purchases of treasury stock under the 2005 Stock Repurchase Program. The total purchase of treasury stock under the 2005 Stock Repurchase Program totaled $15.63 million and $12.90 million for the years ended December 31, 2025 and 2024, respectively.

As of December 31, 2025 and 2024, stockholders' equity, before deducting for the maximum cash obligation related to the ESOP, was $602.71 million and $540.94 million, respectively. This measure of stockholders’ equity as a percent of total assets

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was 12.97% at December 31, 2025 and 11.79% at December 31, 2024. As of December 31, 2025, total equity, after deducting the maximum cash value related to the ESOP, was 11.80% of assets compared to 10.74% of assets at the prior year end.

The Company and the Bank are subject to the Federal Deposit Insurance Corporation Improvement Act of 1991, and the Bank is subject to Prompt Corrective Action Rules as determined and enforced by the Federal Reserve. These regulations establish minimum capital requirements that member banks must maintain.

The Bank is classified as "well-capitalized" by FDIC capital guidelines. For more information regarding regulatory capital requirements, see the section under Part I, Item 1 to this 10-K captioned “Supervision and Regulation.”

On a consolidated basis, 2025 cash flows from operations provided $68.81 million, proceeds from maturities of investments available for sale provided $167.28 million and proceeds from FHLB borrowings, FHLB daily reset advances and Bank Term Funding Program borrowings provided $1.743 billion. These cash flows were invested in multiple areas including $250.17 million in purchases of investment securities and $130.48 million of loans made to customers. In addition, $3.67 million was used to purchase property and equipment.

The Bank has a contingency funding plan to address liquidity issues in times of crisis. The primary source of funding will be the Bank’s customer deposit base. The Bank has established alternative sources of funding available to increase liquidity. The availability of the funding sources is tested on an annual basis. The Bank performs quarterly stress testing to determine if the Bank has an appropriate amount of funding sources to address potential liquidity needs. At December 31, 2025, the Bank had total outstanding loan commitments and unused portions of lines of credit totaling $686.44 million (see Note 16 to the Company's Consolidated Financial Statements). Management believes that its liquidity levels are sufficient at this time, but the Bank may increase its liquidity by limiting the growth of its assets, by selling more loans in the secondary market or selling portions of loans to other banks through participation agreements. Another liquidity source includes obtaining additional funds from the Federal Home Loan Bank (FHLB). As of December 31, 2025, the Bank can obtain an additional $986.75 million from the FHLB based on the current real estate mortgage loans held. In addition, the Bank has arranged $175.00 million of credit lines at three banks. Investment securities are pledged to secure a credit line of $50.00 million, while the other credit lines are unsecured. Other liquidity sources include various sources of brokered deposits.

The following table shows outstanding balances, weighted average interest rates at year end, maximum month-end balances, average month-end balances and weighted average interest rates of Federal Home Loan Bank borrowings during 2025, 2024 and 2023:

(Amounts In Thousands)

Weighted average interest rate at year end 4.05 % 5.22 % 5.55 %

Weighted average interest rate for the year 4.45 % 5.22 % 5.55 %

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The following tables show outstanding balances, weighted average interest rates at year end, maximum month-end balances, average month-end balances and weighted average interest rates of FHLB daily reset advances and bank term funding program borrowings during 2025, 2024 and 2023:

Bank Term Funding Program (Amounts In Thousands)

Weighted average interest rate at year end — % 4.77 % 5.29 %

Weighted average interest rate for the year 5.17 % 4.77 % 5.29 %

FHLB Daily Reset Advances

Weighted average interest rate at year end 3.98 % 5.31 % — %

Weighted average interest rate for the year 4.43 % 5.31 % 5.31 %

The Bank has off-balance sheet commitments to fund additional borrowings of customers. Contractual commitments to fund loans are met from the proceeds of federal funds sold or investment securities and additional borrowings. Many of the contractual commitments to extend credit will not be funded because they represent the credit limits on credit cards and home equity lines of credits.

As disclosed in Note 16 to the Company's Consolidated Financial Statements, the Company has certain obligations and commitments to make future payments under contracts. The following table summarizes significant contractual obligations and other commitments as of December 31, 2025:

Payments Due By Period

(Amounts In Thousands)

Total Less ThanOne Year One -Three Years Three -Five Years More ThanFive Years

Contractual obligations:

Other commitments:

The Company and the Bank have no additional material commitments or plans that will materially affect liquidity or capital resources. Property and equipment may be acquired in cash purchases, or they may be financed if favorable terms are available.

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Item 7A. Quantitative and Qualitative Disclosures About Market Risk

The Company's primary market risk exposure is to changes in interest rates. Interest rate risk is the risk to current or anticipated earnings or capital arising from movements in interest rates. Interest rate risk arises from repricing risk, basis risk, yield curve risk and options risk. Repricing risk is the difference between the timing of rate changes and the timing of cash flows. Basis risk is the difference from changing rate relationships among different yield curve affecting Company activities. Yield curve risk is the difference from changing rate relationships across the spectrum of maturities. Option risk is the difference resulting from interest-related options embedded in Company products. The Company's primary source of interest rate risk exposure arises from repricing risk. To measure this risk the Company uses a static gap measurement system that identifies the repricing gaps across the full maturity spectrum of the Company's assets and liabilities and an earnings simulation approach. The gap schedule is known as the interest rate sensitivity report. The report reflects the repricing characteristics of the Company's assets and liabilities. The report details the calculation of the gap ratio. This ratio indicates the amount of interest-earning assets repricing within a given period in comparison to the amount of interest-bearing liabilities repricing within the same period of time. A gap ratio of 1.0 indicates a matched position, in which case the effect on net interest income due to interest rate movements will be minimal. A gap ratio of less than 1.0 indicates that more liabilities than assets reprice within the time period, and a ratio greater than 1.0 indicates that more assets reprice than liabilities.

The Company's asset/liability management, or its management of interest rate risk, is focused primarily on evaluating and managing net interest income given various risk criteria. Factors beyond the Company's control, such as market interest rates and competition, may also have an impact on the Company's interest income and interest expense. In the absence of other factors, the Company's overall yield on interest-earning assets will increase as will its cost of funds on its interest-bearing liabilities when market interest rates increase over an extended period of time. Inversely, the Company's yields and cost of funds will decrease when market rates decline. The Company is able to manage these swings to some extent by attempting to control the maturity or rate adjustments of its interest-earning assets and interest-bearing liabilities over given periods of time.

The Company maintains an Asset/Liability Committee, which meets at least quarterly to review the interest rate sensitivity position and to review and develop various strategies for managing interest rate risk within the context of the following factors: 1) capital adequacy, 2) asset/liability mix, 3) economic outlook, 4) market characteristics and 5) the interest rate forecast. In addition, the Company uses a simulation model to review various assumptions relating to interest rate movement. The Company engages a third party that utilizes a modeling program to measure the Company’s exposure to potential interest rate changes. For various assumed hypothetical changes in market interest rates, this analysis measures the estimated change in net interest income. The simulations allow for ongoing assessment of interest rate sensitivity and can include the impact of potential new business strategies. The modeled scenarios begin with a base case in which rates are unchanged and include parallel and nonparallel rate shocks. The results of these shocks are measured in two forms: first, the impact on the net interest margin and earnings over one and two year time frames; and second, the impact on the theoretical market value of equity. The results of the simulation are compared against approved policy limits. The model attempts to limit rate risk even if it appears the Company's asset and liability maturities are perfectly matched and a favorable interest margin is present. The Company's policy is to generally maintain a balance between profitability and interest rate risk.

The Company uses derivative financial instruments, when needed, to manage the impact of changes in interest rates on future interest income or interest expense. The Company is exposed to credit-related losses in the event of nonperformance by the counterparties to these derivative instruments, but believes the risk of these losses has been minimized by entering into the contracts with large, stable financial institutions.

In order to minimize the potential effects of adverse material and prolonged increases or decreases in market interest rates on the Company's operations, management has implemented an asset/liability program designed to mitigate the Company's interest rate sensitivity. The program emphasizes the origination of adjustable rate loans, which are held in the portfolio, the investment of excess cash in short or intermediate term interest-earning assets, and the solicitation of transaction deposit accounts, which are less sensitive to changes in interest rates and can be re-priced rapidly.

The table set forth below includes the portion of the balances in interest-bearing checking, savings and money market accounts that management has estimated to mature within one year. The classifications are used because the Company's historical data indicates that these have been very stable deposits without much interest rate fluctuation. Historically, these accounts would not need to be adjusted upward as quickly in a period of rate increases so the interest risk exposure would be less than the re-pricing schedule indicates. The FHLB borrowings are classified based on either their due date or if they are callable on their most likely call date based on the interest rate.

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Repricing

Maturities Days More Than

(Amounts in Thousands)

Earning assets:

Excess Cash $ 6,915 $ — $ — $ — $ — $ — $ 6,915

Federal funds sold 247 — — — — — 247

Sources of funds:

Other sources, primarily noninterest-bearing — — — — — 1,141,545 1,141,545

Interest

Cumulative Interest

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Based on the data following, net interest income should decline with instantaneous increases in interest rates while net interest income should increase with instantaneous declines in interest rates. Generally, during periods of increasing interest rates, the Company's interest rate sensitive liabilities would re-price faster than its interest rate sensitive assets causing a decline in the Company's interest rate spread and margin. This would tend to reduce net interest income because the resulting increase in the Company’s cost of funds would not be immediately offset by an increase in its yield on earning assets. In times of decreasing interest rates, fixed rate assets could increase in value and the lag in re-pricing of interest rate sensitive assets could be expected to have a positive effect on the Company's net interest income.

The following table, which presents balances and related weighted average interest rates by expected maturity dates, provides information about the Company's loans, investment securities and deposits that are sensitive to changes in interest rates.

(Amounts In Thousands)

Assets:

Loans, fixed:

Loans, variable:

Investments (1):

Liabilities:

Liquid deposits (2):

Average interest rate — % — % — % — % — % — % 1.22 %

Deposits, certificates:

(1)Includes all available-for-sale investments and Federal Home Loan Bank stock.

(2)Includes NOW and other demand, savings and money market funds.

Item 8. Consolidated Financial Statements and Supplementary Data

The consolidated financial statements and supplementary data are included on pages 56 through 119.

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Report of Independent Registered Public Accounting Firm

To the Shareholders, Board of Directors, and Audit Committee

Hills Bancorporation

Hills, Iowa

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Hills Bancorporation (the “Company”) as of December 31, 2025 and 2024, the related consolidated statements of income, comprehensive income, stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2025, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2025, in conformity with accounting principles generally accepted in the United States of America.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated March 18, 2026, expressed an adverse opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits.

We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures include examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current-period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Allowance for Credit Losses on Loans

Description of the Matter

The Company’s allowance for credit losses on loans (the “ACL”) was $58.2 million at December 31, 2025. As more fully described in Notes 1 and 3 to the financial statements, the ACL is an estimate of lifetime expected credit losses. The Company uses a discounted cash flow (DCF) model to estimate expected losses for most of the Company’s loan pools that exhibit similar risk characteristics. This model calculates an expected loss percentage for each loan class by considering the probability of

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default, using life-of-loan analysis periods for all loan segments, and the historical severity of loss, based on the aggregate net lifetime losses incurred per loan class. For each of these loan pools, the Company generates cash flow projections at the instrument level adjusting payment expectations for estimated prepayment speed, curtailments, time to recovery, probability of default, and loss given default. Additional qualitative adjustments are applied for risk factors that are not considered within the modeling process but are relevant in assessing the expected credit losses within the loan pools. Management utilizes a qualitative factor framework to provide a qualitative estimate of the expected credit losses inherent in the loan portfolio in relation to potential limitations of the quantitative model. Loans that do not share risk characteristics are evaluated on an individual basis.