Company: OSBC
Filing Date: 2025-04-23
Form Type: S-4
Source: 0001104659-25-037832
Chunk: 52

Company: OLD SECOND BANCORP INC
Filing Date: 2025-04-23
Form: S-4
Chunk 52
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 must provide your bank, broker or other nominee with instructions on how to vote your shares. Please follow the voting instructions provided by your bank, broker or other nominee.

You may not vote shares held in street name by returning a proxy card directly to Bancorp Financial.

Further, banks, brokers or other nominees who hold shares of Bancorp Financial common stock on behalf of their customers may not give a proxy to Bancorp Financial to vote those shares with respect to any non-routine matters without specific instructions from you, as banks, brokers and other nominees do not have discretionary voting power on any non-routine matters that will be voted upon at the Bancorp Financial special meeting.

#### Revocability of Proxies
If you are a holder of record of Bancorp Financial common stock, you may revoke your proxy at any time before it is voted by:

•

timely delivering written notice of revocation to Bancorp Financial, Attention: Corporate Secretary, 1515 West 22nd Street, Suite 100W, Oak Brook, Illinois 60523;

•

timely delivering a proxy card bearing a later date than the proxy that you wish to revoke; or

•

timely casting a subsequent vote via telephone or the Internet, as described above, before 11:59 p.m., Eastern Time, on the day before the Bancorp Financial special meeting.

If you hold your shares of Bancorp Financial common stock through a bank, broker or other nominee, you may change your vote by contacting your bank, broker or other nominee. Please contact your bank, broker or other nominee to obtain further instructions.

Attendance in person at the Bancorp Financial special meeting will not in and of itself constitute revocation of a proxy. A revocation or later-dated proxy received by Bancorp Financial after the deadlines described above will not affect the vote. If the Bancorp Financial special meeting is postponed or adjourned, it will not affect the ability of holders of record of Bancorp Financial common stock as of the Bancorp Financial record date to exercise their voting rights or to revoke any previously granted proxy using the methods described above. Due to the virtual nature of the special meeting, votes on the matters being considered at the special meeting will only be counted to the extent that they are received prior to the meeting — no shares will be voted at the meeting.

#### Solicitation of Proxies
Bancorp Financial is soliciting proxies for the Bancorp Financial special meeting from its stockholders. In accordance with the merger agreement, Bancorp Financial and Old Second will each bear