FIRST BUSEY CORP /NV/

EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES

An evaluation of Busey’s disclosure controls and procedures, as defined in Rule 13a-15(e) under the Exchange Act, was carried out as of September 30, 2026, under the supervision and with the participation of its Chief Executive Officer, Chief Financial Officer, and several other members of senior management. Based on this evaluation, Busey’s Chief Executive Officer and Chief Financial Officer concluded that, as of September 30, 2026, Busey’s disclosure controls and procedures were effective in ensuring that the information First Busey is required to disclose in the reports First Busey files or submits under the Exchange Act was (1) accumulated and communicated to Busey’s management (including the Chief Executive Officer and Chief Financial Officer) to allow timely decisions regarding required disclosure, and (2) recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms.

CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

During the three months ended September 30, 2026, no change occurred in Busey’s internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, Busey’s internal control over financial reporting.