Table of Contents Title of each class Trading Symbol (s) Name of each exchange on which registered Common Stock, $.001 par value BUSE The Nasdaq Stock Market LLC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q þ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarterly Period Ended September 30, 2022 o Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File No. 0-15950 FIRST BUSEY ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarterly Period Ended June 30, 2022 ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File No. 0-15950 FIRST BUSEY CORPORATION (Exact name of registrant as specified in its charter) Nevada 37-1078406 (State or other jurisdiction of incorporation or organization) ...

| --- | --- | --- | --- | --- | --- | --- | --- | |-------|-------|-------|-------|-------|-------|-------|----------------------------------------------------| | | | | | | | | | | | | | | | | | | | | | | | | | | July 26, 2022 2Q22 QUARTERLY EARNINGS SUPPLEMENT | | | | | | | | | | Special Note Concerning Forward-Looking Statements Statements made in this document, other than those concerning historical financial information, may be considered forwardlooking statements within the meaning of the Private Secur ...

1Q22 QUARTERLY EARNINGS SUPPLEMENT April 26, 2022 busey.com Member FDI Special Note Concerning Forward-Looking Statements Statements made in this document, other than those concerning historical financial information, may be considered forwardlooking statements within the meaning of 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. Forward-looking statements, which may be ba ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarterly Period Ended March 31, 2022 ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File No. 0-15950 FIRST BUSEY CORPORATION (Exact name of registrant as specified in its charter) Nevada 37-1078406 (State or other jurisdiction of incorporation or organization) ...

Table of Contents 7 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 0-15950 FIRST BUSEY CORPORATION (Exact name of registrant as specified in its charter) Nevada 37-1078406 (State or other jurisdiction of incorporation of organizatio ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarterly Period Ended September 30, 2021 ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File No. 0-15950 FIRST BUSEY CORPORATION (Exact name of registrant as specified in its charter) Nevada 37-1078406 (State or other jurisdiction of incorporation or organizat ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarterly Period Ended June 30, 2021 ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File No. 0-15950 FIRST BUSEY CORPORATION (Exact name of registrant as specified in its charter) Nevada 37-1078406 (State or other jurisdiction of incorporation or organization) ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☑ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarterly Period Ended March 31, 2021 ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File No. 0-15950 FIRST BUSEY CORPORATION (Exact name of registrant as specified in its charter) Nevada 37-1078406 (State or other jurisdiction of incorporation or organization) ...

Table of Contents Title of each class Trading SymbolName of each exchange on which registered Common Stock ($0.001 par value) BUSE The Nasdaq Stock Market LLC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 0-15950 FIRST BUSEY CORPOR ...