Company: OSBC
Filing Date: 2025-05-08
Form Type: 424B3
Source: 0001104659-25-046065
Chunk: 408

Company: OLD SECOND BANCORP INC
Filing Date: 2025-05-08
Form: 424B3
Chunk 408
---
 Executive to perfect his claim and an explanation why such material or such information is necessary;

(iv)

Appropriate information as to the steps to be taken if the Executive wishes to submit the claim for review; and

(v)

The time limits for requesting the review under (c) below.

(c)

#### Request for Claim Decision Review
. Within thirty (30) days after receipt by the Executive of the written opinion described above, the Executive may request in writing that the President of the Company review the description of the Company. Such request must be addressed to the President of the Company, at its then principal place of business. The Executive of his duly authorized representative may, but need not, review the pertinent documents and submit issues and comments in writing for consideration by the Company. If the Executive does not request a review of the Company’s determination by the President of the Company within such 30-day period, he shall be barred and estopped from challenging the Company’s determination. Within thirty (30) days after the President’s receipt of a request for review, he will review the Company’s determination. After considering all materials presented by the Executive, the President will render a written opinion, written in a manner calculated to be understood by the Executive, setting forth specific reasons for the decision and containing specific references to the pertinent provisions of this Agreement on which the decision is based.

<div align='center'>C-1-19</div>

TABLE OF CONTENTS

#### 6.2 Notices
. Any notice required to be delivered to the Company, the Compensation Committee or the President of the Company by the Executive hereunder shall be properly delivered to the Company when personally delivered to (including by a reputable overnight courier), or actually received through the U.S. mail, postage prepaid, by:

Old Second Bancorp, Inc. 
 37 South River Street 
 Aurora, IL 60506

Any notice required to be delivered to the Executive by the Company, the Compensation Committee or the President of the Company hereunder shall be properly delivered to the Executive when personally delivered to (including by a reputable overnight courier), or actually received through he U.S. mail, postage prepaid, by the Executive at his last known address as reflected on the books and records of the Company.

#### Section 7. Contractual Rights and Legal Remedies

#### 7.1 Contractual Rights to Benefits
. This Agreement establishes in the Executive a right to the benefits to which the Executive is entitled hereunder. However, except as expressly stated herein, nothing herein contained shall require or