EXHIBIT 24

FIRST BUSEY CORPORATION

POWER OF ATTORNEY
(SECTIONS 13(d) AND 16(a) MATTERS)

KNOW ALL BY THESE PRESENTS, THAT the undersigned, MICHAEL D. CASSENS, hereby makes, constitutes, and appoints each of Lynette Strode, Catherine Alqallaf, and Carolyn Slattery, of First Busey Corporation (the “Company”), acting jointly and individually, as the undersigned’s true and lawful attorneys-in-fact, with full power and authority, including full power of substitution, as hereinafter described on behalf of and in the undersigned’s name, place and stead to:

1.seek, obtain or maintain filing codes and passwords enabling the undersigned to make electronic filings with the United States Securities and Exchange Commission of reports required by Section 16(a) of the Securities Exchange Act of 1934, as amended, and the rules promulgated thereunder (the “Exchange Act”), including completing, executing and submitting any Form ID (Uniform Application for Access Codes to File on EDGAR) or other application for Edgar access, and any other related agreement, certificate or document;

2.execute for and on behalf of the undersigned, in the undersigned’s capacity as a more than five percent (5%) stockholder (if applicable) of the Company, any Schedule 13D or Schedule 13G and any amendments thereto in accordance with Section 13(d) of the Securities Exchange Act of 1934 (the “Exchange Act”) and the rules thereunder;

3.execute for and on behalf of the undersigned, in the undersigned’s capacity as a director, officer or stockholder of the Company or a subsidiary of the Company, Forms 3, 4 and 5 in accordance with Section 16(a) of the Exchange Act and the rules thereunder or any amendments thereto;

4.execute for and on behalf of the undersigned, in the undersigned’s capacity as an affiliate of the Company, any Form 144;

5.do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 144, 3, 4 or 5 and any such Schedule 13D or Schedule 13G and any amendments thereto and timely file such form or schedule with the United States Securities and Exchange Commission, the Nasdaq Stock Market, the Company and any stock exchange or similar authority;

6.seek or obtain, as the undersigned's representative and on the undersigned's behalf, information on transactions in the Company's securities from any third party, including brokers, employee benefit plan administrators and trustees, and the undersigned hereby authorizes any such person to release any such information to the undersigned and approves and ratifies any such release of information; and

7.take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact’s discretion.

EXHIBIT 24

The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power or substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact’s substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned’s responsibilities to comply with Section 13(d) or Section 16 of the Exchange Act.

This Power of Attorney shall remain in full force and effect until (i) the undersigned is no longer required to file Forms 144, 3, 4 and 5 and Schedule 13D or Schedule 13G (including any amendments thereto) with respect to the undersigned’s holdings of and transactions in securities issued by the Company, (ii) the aforenamed attorneys-in-fact are no longer employed by the Company or its subsidiaries in which case this Power of Attorney shall automatically terminate (but previous actions shall remain valid) with respect to such attorney-in-fact immediately upon his or her termination of employment, or (iii) this Power of Attorney is earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

For good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the undersigned, to the fullest extent permitted by law: (i) agrees to hold the attorneys-in-fact and the Company harmless from all liability, loss, cost, damage or expense of any nature, including reasonable attorneys’ fees and expenses sustained or incurred by the attorneys-in-fact or Company in connection with the performance, or non-performance, of the actions described in paragraphs (1) - (7) above; and (ii) irrevocably releases and waives any and all claims (in law or equity) against the attorneys-in-fact and the Company, and all of their respective heirs, estates, successors and assigns, as the case may be, relating to the performance, or non-performance, of the actions described in paragraphs (1) - (7) above.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of the 24th day of September, 2025.


/s/ MICHAEL D. CASSENS
Print Name:			Michael D. Cassens

Cassens Michael David 4