Company: OSBC
Filing Date: 2025-05-06
Form Type: S-4/A
Source: 0001104659-25-045103
Chunk: 3

Company: OLD SECOND BANCORP INC
Filing Date: 2025-05-06
Form: S-4/A
Chunk 3
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 you to obtain current market quotations for Old Second common stock. Based on the number of outstanding shares of Old Second common stock and Bancorp Financial common stock as of May 5, 2025, and based on the exchange ratio of 2.5814, it is expected that Old Second stockholders will hold approximately 84.8% and Bancorp Financial stockholders will hold approximately 15.2% of the issued and outstanding shares of Old Second common stock immediately following the closing of the merger. In connection with the merger, Bancorp Financial stockholders are cordially invited to attend a special meeting of the stockholders of Bancorp Financial, which we refer to as the “Bancorp Financial special meeting,” to be held virtually on June 18, 2025, at 9:00 A.M. Central Time. At the Bancorp Financial special meeting, Bancorp Financial stockholders will be asked to vote on (i) a proposal to adopt the merger agreement and the transactions contemplated thereby, which we refer to as the “merger proposal”, (ii) a proposal to amend the Stockholders Agreement of Bancorp Financial to facilitate the merger, which we refer to as the “stockholders agreement amendment proposal”; and (iii) a proposal to adjourn the special meeting, if necessary or appropriate, to permit further solicitation of proxies in favor of the merger proposal or the stockholders agreement amendment proposal. After careful consideration, the Bancorp Financial board of directors has unanimously determined that the merger agreement, the merger and the other transactions contemplated by the merger agreement, are advisable, fair to and in the best interests of Bancorp Financial and its stockholders and unanimously recommends that Bancorp Financial stockholders vote “FOR” the merger proposal, “FOR” the stockholders agreement amendment proposal, and “FOR” the adjournment proposal. This document, which serves as a proxy statement for the Bancorp Financial special meeting and as a prospectus for the shares of Old Second common stock to be issued to Bancorp Financial stockholders in the merger, describes the Bancorp Financial special meeting, the merger, the documents related to the merger and other related matters. You are encouraged to read this proxy statement/prospectus carefully. In particular, you should read the “ Risk Factors ” section beginning on page 19for a discussion of the risks you should consider in evaluating the proposed merger and how it will affect you. You can also obtain information about Old Second from documents that it has filed with the U.S. Securities and Exchange Commission that