UMB FINANCIAL CORP Segments Disclosure

12. BUSINESS SEGMENT REPORTING

The Company has strategically aligned its operations into the following three reportable segments: Commercial Banking, Institutional Banking, and Personal Banking (collectively, the Business Segments, and each, a Business Segment). These segments reflect the type of customer served, how products and services are provided, how executive management responsibilities are assigned, and reflect the manner in which financial information is evaluated by the chief operating decision maker (CODM). The Company’s CODM is comprised of a group of senior executive officers led by the Company's chief executive officer, chief administrative officer, chief financial officer, and the Bank's chief executive officer.

Business Segment financial information is produced using an internal reporting system which is based on a series of management estimates for funds transfer pricing (FTP), and allocations of noninterest expense and income taxes. The process for determining FTP is based on a number of factors and assumptions, including prevailing market interest rates, the expected lives of various assets and liabilities, and the Company’s broader funding profile. These estimates and allocations are periodically reviewed and refined. The CODM uses the Business Segment net income in deciding how to allocate resources and assess performance for individual Business Segments, including evaluating the cost or opportunity value of funds within each Business Segment and identifying areas of focus for organic growth or acquisition. For comparability purposes, amounts in all periods are based on methodologies in effect at December 31, 2025. Previously reported results have been reclassified in this filing to conform to the current organizational structure.

The following summaries provide information about the activities of each Business Segment:

Commercial Banking serves the commercial banking and treasury management needs of the Company’s small to middle-market businesses through a variety of products and services. Such services include commercial loans, commercial real estate financing, commercial credit cards, letters of credit, loan syndication services, and consultative services. In addition, the Company’s specialty lending group offers a variety of business solutions including asset-based lending, mezzanine debt and minority equity investments. Treasury management services include depository services, account reconciliation and cash management tools such as, accounts payable and receivable solutions, electronic fund transfer and automated payments, controlled disbursements, lockbox services, and remote deposit capture services.

Institutional Banking is a combination of banking services, fund services, asset management services, and healthcare services provided to institutional clients. This segment also provides fixed income sales, trading and underwriting, corporate trust and escrow services, as well as institutional custody. Institutional Banking includes UMBFS, which provides fund administration and accounting, investor services and transfer agency, and other services to mutual funds and alternative investment groups. Healthcare services provides healthcare payment

solutions including custodial services for health savings accounts (HSAs) and private label, multipurpose debit cards to insurance carriers, third-party administrators, software companies, employers, and financial institutions.

Personal Banking combines consumer banking and wealth management services offered to clients and delivered through personal relationships and the Company’s bank branches, ATM network and internet banking. Products offered include deposit accounts, retail credit cards, private banking, installment loans, home equity lines of credit, and residential mortgages. The range of client services extends from a basic checking account to estate planning and trust services and includes private banking, brokerage services, and insurance services in addition to a full spectrum of investment advisory, trust, and custody services.

BUSINESS SEGMENT INFORMATION