The objective of United’s Asset Liability Management function is to maintain consistent growth in net interest income within United’s policy guidelines. This objective is accomplished through the management of balance sheet liquidity and interest rate risk exposures due to changes in economic conditions, interest rate levels and customer preferences. 75 Table of Contents Interest Rate Risk Management considers interest rate risk to be United’s most significant market risk. Interest rate risk is the exposure to adverse changes in United’s net interest income as a result of changes in interest rates. United’s earnings are largely dependent on the effective management of interest rate risk. Management of interest rate risk focuses on maintaining consistent growth in net interest income within Board-approved policy limits. United’s Asset/Liability Management Committee (“ALCO”), which includes senior management representatives and reports to the Board of Directors, monitors and manages interest rate risk to maintain an acceptable level of change to net interest income as a result of changes in interest rates. Policy established for interest rate risk is stated in terms of the change in net interest income over a one-year and two-year horizon given an immediate and sustained increase or decrease in interest rates. The current limits approved by the Board of Directors are structured on a staged basis with each stage requiring specific actions. United employs a variety of measurement techniques to identify and manage its exposure to changing interest rates. One such technique utilizes an earnings simulation model to analyze the sensitivity of net interest income to movements in interest rates. The model is based on actual cash flows and repricing characteristics for on and off-balance sheet instruments and incorporates market-based assumptions regarding the impact of changing interest rates on the prepayment rate of certain assets and liabilities. The model also includes executive management projections for activity levels in product lines offered by United. Assumptions based on the historical behavior of deposit rates and balances in relation to changes in interest rates are also incorporated into the model. Rate scenarios could involve parallel or nonparallel shifts in the yield curve, depending on historical, current, and expected conditions, as well as the need to capture any material effects of explicit or embedded options. These assumptions are inherently uncertain and, as a result, the model cannot precisely measure net interest income or precisely predict the impact of fluctuations in interest rates on net interest income. Actual results will differ from simulated results due to timing, magnitude and frequency of interest rate changes as well as changes in market conditions and management’s strategies. Interest sensitive assets and liabilities are defined as those assets or liabilities that mature or are repriced within a designated time frame. The principal function of managing interest rate risk is to maintain an appropriate relationship between those assets and liabilities that are sensitive to changing market interest rates. The difference between rate sensitive assets and rate sensitive liabilities for specified periods of time is known as the “GAP.” Earnings-simulation analysis captures not only the potential of these interest sensitive assets and liabilities to mature or reprice, but also the probability that they will do so. Moreover, earnings-simulation analysis considers the relative sensitivities of these balance sheet items and projects their behavior over an extended period of time. United closely monitors the sensitivity of its assets and liabilities on an on-going basis and projects the effect of various interest rate changes on its net interest margin. The following table shows United’s estimated earnings sensitivity profile as of June 30, 2026 and December 31, 2025: Change in Interest Rates (basis points) Percentage Change in Net Interest Income June 30, 2026 December 31, 2025 +200 3.98 % 3.85 % +100 2.34 % 2.31 % -100 (0.01 %) 0.20 % -200 1.49 % 1.58 % At June 30, 2026, given an immediate, sustained 100 basis point upward shock to the yield curve used in the simulation model, net interest income for United is estimated to increase by 2.34% over one year as compared to an increase by 2.31% at December 31, 2025. A 200 basis point immediate, sustained upward shock in the yield curve would increase net interest income by an estimated 3.98% over one year as of June 30, 2026, as compared to an increase of 3.85% as of December 31, 2025. A 100 basis point immediate, sustained downward shock in the yield curve would decrease net interest income by an estimated 0.01% over one year as of June 30, 2026 as compared to an increase of 0.20% over one year as of December 31, 2025. A 200 basis point immediate, sustained downward shock in the yield curve would increase net interest income by an estimated 1.49% over one year as of June 30, 2026 as compared to an increase of 1.58% over one year as of December 31, 2025. 76 Table of Contents In addition to the one year earnings sensitivity analysis, a two-year analysis is also performed. Compared to the one year analysis, United is projected to show improved performance in year two within the upward rate shock scenarios. Given an immediate, sustained 100 basis point upward shock to the yield curve used in the simulation model, net interest income for United is estimated to increase by 4.21% in year two as of June 30, 2026. A 200 basis point immediate, sustained upward shock in the yield curve would increase net interest income by an estimated 7.40% in year two as of June 30, 2026. A 100 basis point immediate, sustained downward shock in the yield curve would decrease net interest income by an estimated 2.59% in year two as of June 30, 2026. A 200 basis point immediate, sustained downward shock in the yield curve would decrease net interest income by an estimated 4.50% in year two as of June 30, 2026. While it is unlikely market rates would immediately move 100 or 200 basis points upward or downward on a sustained basis, this is another tool used by management and the Board to gauge interest rate risk. All of these estimated changes in net interest income are and were within the policy guidelines established by the Board. To further aid in interest rate management, United’s subsidiary bank is a member of the Federal Home Loan Bank (“FHLB”). The use of FHLB advances provides United with a low risk means of matching maturities of earning assets and interest-bearing funds to achieve a desired interest rate spread over the life of the earning assets. In addition, United uses credit with large regional banks and trust preferred securities to provide funding. As part of its interest rate risk management strategy, United may use derivative instruments to protect against adverse price or interest rate movements on the value of certain assets or liabilities and on future cash flows. These derivatives commonly consist of interest rate swaps, caps, floors, collars, futures, forward contracts, written and purchased options. Interest rate swaps obligate two parties to exchange one or more payments generally calculated with reference to a fixed or variable rate of interest applied to the notional amount. United accounts for its derivative activities in accordance with the provisions of ASC Topic 815. Extension Risk A key feature of most mortgage loans is the ability of the borrower to repay principal earlier than scheduled. This is called a prepayment. Prepayments arise primarily due to sale of the underlying property, refinancing, or foreclosure. In general, declining interest rates tend to increase prepayments, and rising interest rates tend to slow prepayments. Like other fixed-income securities, when interest rates rise, the value of mortgage-related securities generally declines. The rate of prepayments on underlying mortgages will affect the price and volatility of mortgage-related securities and may shorten or extend the effective maturity of the security beyond what was anticipated at the time of purchase. If interest rates rise, United’s holdings of mortgage-related securities may experience reduced returns if the borrowers of the underlying mortgages pay off their mortgages later than anticipated. This is generally referred to as extension risk. At June 30, 2026, United’s mortgage-related securities portfolio had an amortized cost of $2.3 billion, of which approximately $1.5 billion or 66% were fixed rate collateralized mortgage obligations (“CMOs”). These fixed rate CMOs consisted primarily of planned amortization class (“PACs”), sequential-pay and accretion directed (“VADMs”) bonds having an average life of approximately 4.6 years and a weighted average yield of 3.81%, under current projected prepayment assumptions. These securities are expected to have moderate extension risk in a rising rate environment. Current models show that given an immediate, sustained upward shock of 300 basis points, the average life of these securities would only extend to 6.2 years. The projected price decline of the fixed rate CMO portfolio in rates up 300 basis points would be 14.5%, or less than the price decline of a 7-year treasury note. By comparison, the price decline of a 30-year 5.5% current coupon mortgage-backed security (“MBS”) in rates higher by 300 basis points would be approximately 19.6%. United had approximately $251.4 million in fixed rate commercial mortgage-backed securities (“CMBS”) with a projected yield of 2.17% and a projected average life of 3.6 years on June 30, 2026. This portfolio consisted primarily of Freddie Mac Multifamily K securities and Fannie Mae Delegated Underwriting and Servicing (“DUS”) securities with a weighted average maturity (“WAM”) of 8 years. 77 Table of Contents United had approximately $18.1 million in 15-year mortgage backed securities with a projected yield of 3.94% and a projected average life of 3.7 years as of June 30, 2026. This portfolio consisted of seasoned 15-year mortgage paper with a weighted average loan age (“WALA”) of 6.3 years and a WAM of 8.9 years. United had approximately $281.2 million in 20-year mortgage backed securities with a projected yield of 2.14% and a projected average life of 5.7 years on June 30, 2026. This portfolio consisted of seasoned 20-year mortgage paper with a WALA of 5.3 years and a WAM of 14.4 years. United had approximately $199.7 million in 30-year mortgage backed securities with a projected yield of 3.87% and a projected average life of 7.4 years on June 30, 2026. This portfolio consisted of seasoned 30-year mortgage paper with a WALA of 6.7 years and a WAM of 21.9 years. The remaining 1% of the mortgage related securities portfolio on June 30, 2026, included floating rate CMO, CMBS and mortgage backed securities.