United’s subsidiary bank is a member of the Federal Home Loan Bank (“FHLB”). Membership in the FHLB makes available short-term and long-term borrowings from collateralized advances. All FHLB borrowings are collateralized by a mix of single-family residential mortgage loans, commercial loans and investment securities. At June 30, 2026, United had an unused borrowing amount of approximately $9,253,375 available subject to delivery of collateral after certain trigger points. Advances may be called by the FHLB or redeemed by United based on predefined factors and penalties.

At June 30, 2026, a $250,000 FHLB advance with a weighted-average contractual interest rate of 3.82% and a weighted-average effective interest rate of 0.59% is scheduled to mature in 2026. The weighted-average effective rate considers the effect of any interest rate swaps designated as cash flow hedges outstanding at June 30, 2026 to manage interest rate risk on its long-term debt.

At June 30, 2026, United had a total of twenty statutory business trusts that were formed for the purpose of issuing or participating in pools of trust preferred capital securities (“Capital Securities”) with the proceeds invested in junior subordinated debt securities (“Debentures”) of United. The Debentures, which are subordinate and junior in right of payment to all present and future senior indebtedness and certain other financial obligations of United, are the sole assets of the trusts and United’s payment under the Debentures is the sole source of revenue for the trusts. At June 30, 2026 and December 31, 2025, the outstanding balance of the Debentures was $282,615 and $281,817, respectively, and was included in the category of long-term debt on the Consolidated Balance Sheets entitled “Other long-term borrowings.” The Capital Securities are not included as a component of shareholders’ equity in the Consolidated Balance Sheets. United fully and unconditionally guarantees each individual trust’s obligations under the Capital Securities. Under the provisions of the subordinated debt, United has the right to defer payment of interest on the subordinated debt at any time, or from time to time, for periods not exceeding five years. If interest payments on the subordinated debt are deferred, the dividends on the Capital Securities are also deferred. Interest on the subordinated debt is cumulative.

Long-Term Borrowings	6 Months Ended
Jun. 30, 2026
Debt Disclosure [Abstract]
Long-Term Borrowings	9. LONG-TERM BORROWINGS United’s subsidiary bank is a member of the Federal Home Loan Bank (“FHLB”). Membership in the FHLB makes available short-term and long-term borrowings from collateralized advances. All FHLB borrowings are collateralized by a mix of single-family residential mortgage loans, commercial loans and investment securities. At June 30, 2026, United had an unused borrowing amount of approximately $9,253,375 available subject to delivery of collateral after certain trigger points. Advances may be called by the FHLB or redeemed by United based on predefined factors and penalties. At June 30, 2026, a $250,000 FHLB advance with a weighted-average contractual interest rate of 3.82% and a weighted-average effective interest rate of 0.59% is scheduled to mature in 2026. The weighted-average effective rate considers the effect of any interest rate swaps designated as cash flow hedges outstanding at June 30, 2026 to manage interest rate risk on its long-term debt. At June 30, 2026, United had a total of twenty statutory business trusts that were formed for the purpose of issuing or participating in pools of trust preferred capital securities (“Capital Securities”) with the proceeds invested in junior subordinated debt securities (“Debentures”) of United. The Debentures, which are subordinate and junior in right of payment to all present and future senior indebtedness and certain other financial obligations of United, are the sole assets of the trusts and United’s payment under the Debentures is the sole source of revenue for the trusts. At June 30, 2026 and December 31, 2025, the outstanding balance of the Debentures was $282,615 and $281,817, respectively, and was included in the category of long-term debt on the Consolidated Balance Sheets entitled “Other long-term borrowings.” The Capital Securities are not included as a component of shareholders’ equity in the Consolidated Balance Sheets. United fully and unconditionally guarantees each individual trust’s obligations under the Capital Securities. Under the provisions of the subordinated debt, United has the right to defer payment of interest on the subordinated debt at any time, or from time to time, for periods not exceeding five years. If interest payments on the subordinated debt are deferred, the dividends on the Capital Securities are also deferred. Interest on the subordinated debt is cumulative. In accordance with the fully-phased in “Basel III Capital Rules” as published by United’s primary federal regulator, the Federal Reserve, United is unable to consider the Capital Securities or the fixed-to-floating rate subordinated notes as Tier 1 capital, but rather the Capital Securities and the fixed-to-floating rate subordinated notes are included as a component of United’s Tier 2 capital. United can include the Capital Securities and the fixed-to-floating rate subordinated notes in its Tier 2 capital on a permanent basis.

In accordance with the fully-phased in “Basel III Capital Rules” as published by United’s primary federal regulator, the Federal Reserve, United is unable to consider the Capital Securities or the

fixed-to-floating

rate subordinated notes as Tier 1 capital, but rather the Capital Securities and the

fixed-to-floating

rate subordinated notes are included as a component of United’s Tier 2 capital. United can include the Capital Securities and the

fixed-to-floating

rate subordinated notes in its Tier 2 capital on a permanent basis.