Company: OSBC
Filing Date: 2025-04-01
Form Type: PRE 14A
Source: 0001558370-25-004277
Chunk: 103

Company: OLD SECOND BANCORP INC
Filing Date: 2025-04-01
Form: PRE 14A
Chunk 103
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 services and review of other regulatory filings. |

Pre-Approval Policy The Audit Committee has a Pre-Approval Policy to pre-approve the audit and non-audit services performed by our independent registered public accounting firm. All services provided by the independent registered public accounting firm are either within general pre-approved limits or specifically approved by the Audit Committee. The general pre-approval limits are detailed as to each particular service and are limited by a specific dollar amount for each type of service per project. The authority to grant pre-approvals may be delegated to one or more members of the Audit Committee. The Pre-Approval Policy requires the Audit Committee to be informed of the services provided under the pre-approval guidelines at the next regularly scheduled Audit Committee meeting. All services provided by Plante & Moran, PLLC, and all fees related thereto, were approved pursuant to the pre-approval policy. The Pre-Approval Policy is available on our website at www.oldsecond.com.

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<div align='center'>**AUDIT COMMITTEE REPORT**</div>

The Audit Committee assists the board in carrying out its oversight responsibilities for our financial reporting process, audit process and internal controls. The Audit Committee also reviews the audited financial statements and recommends to the board that they be included in our annual report on Form 10-K. The committee is comprised solely of directors who are independent under the rules of the NASDAQ Stock Market.

The Audit Committee has reviewed and discussed our audited financial statements for the fiscal year ended December 31, 2024, with our management and Plante & Moran, PLLC, the independent registered public accounting firm that audited our financial statements for that period. The committee has discussed with Plante & Moran, PLLC the matters required to be discussed by Auditing Standard No. 1301, Communications with Audit Committees, as adopted by the Public Company Accounting Oversight Board, and by SAS 114 (The Auditor’s Communication With Those Charged With Governance) and received and discussed the written disclosures and the letter from Plante & Moran, PLLC required by Public Company Accounting Oversight Board Rule 3526 (Communication with Audit Committees Concerning Independence). Based on the review and discussions with management and Plante & Moran, PLLC, the Audit Committee has recommended to the board that the audited financial statements be included in our annual report on Form 10-K for the fiscal year ending December 31, 2024, for filing with the SEC.

<div align='center'>Submitted by:

Ms. Jill York (Chair)

Mr.