Company: OSBC
Filing Date: 2025-05-06
Form Type: S-4/A
Source: 0001104659-25-045103
Chunk: 138

Company: OLD SECOND BANCORP INC
Filing Date: 2025-05-06
Form: S-4/A
Chunk 138
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 acquisitions and other corporate purposes, could, among other things, adversely affect the voting power of the holders of Old Second common stock.

The authorization of preferred stock could have the effect of impeding the acquisition of control of Old Second by means of a tender offer, a proxy fight, open-market purchases or otherwise in a transaction not approved by our board of directors. See “— Antitakeover Provisions — Charter; Bylaws.”

As of March 31, 2025, Old Second had no shares of preferred stock issued and outstanding.

#### Anti-Takeover Provisions

#### General.
Certain provisions of the Old Second charter, the Old Second bylaws and the DGCL may have the effect of impeding the acquisition of control of Old Second by means of a tender offer, a proxy fight, open-market purchases or otherwise in a transaction not approved by the Old Second board of directors. These provisions may have the effect of discouraging a future takeover attempt which is not approved by the Old Second board of directors but which individual stockholders may deem to be in their best interests or in which Old Second stockholders may receive a substantial premium for their shares over then-current market prices. As a result, stockholders who might desire to participate in such a transaction may not have an opportunity to do so. Such provisions will also render the removal of the current Old Second board of directors or management more difficult.

#### Charter; Bylaws.
These provisions of the Old Second charter and the Old Second bylaws include the following:

•

The Old Second board of directors may issue additional authorized shares of Old Second capital stock to deter future attempts to gain control of Old Second, and has the authority to determine the terms of any one or more series of preferred stock, such as voting rights, conversion rates and liquidation preferences. As a result of the ability to fix voting rights for a series of preferred stock, the Old Second board of directors has the power, to the extent consistent with its fiduciary duties, to issue a series of preferred stock to persons friendly to management in order to attempt to block a merger or other transaction by which a third party seeks control, and thereby assist the incumbent board of directors and management to retain their respective positions;

•

The Old Second charter provides for the division of the Old Second board of directors into three classes of directors of approximately equal size, which is referred to as a “classified board.” Old Second directors are elected for three-year terms. Consequently, only one-third of Old Second’s directors are up for election in any given year