Company: OSBC
Filing Date: 2025-04-01
Form Type: PRE 14A
Source: 0001558370-25-004277
Chunk: 56

Company: OLD SECOND BANCORP INC
Filing Date: 2025-04-01
Form: PRE 14A
Chunk 56
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 collars and forward sale contracts, which allow a director, officer or employee to lock in much of the value of his or her stock holdings, often in exchange for all or part of the potential for upside appreciation in the stock; and |

| ● | holding our securities in a margin account or pledging our securities as collateral for a loan. |

34

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

The Compensation Committee has reviewed and discussed the foregoing CD&A with management. Based on the Compensation Committee’s review and discussion with management, the Compensation Committee has recommended to our board of directors that the CD&A be included in this proxy statement and in Old Second’s Annual Report on Form 10-K for the year ended December 31, 2024.

<div align='center'>Submitted by:

Mr. Hugh McLean, Chair

Mr. Dennis Klaeser

Mr. Barry Finn

Mr. Keith Kotche

Mr. John Ladowicz

Ms. Jill York

Members of the Compensation Committee

35</div>

EXECUTIVE COMPENSATION Summary Compensation Table The following table sets forth information concerning the compensation of our named executive officers:

| ​                                                 | ​ |    ​ | ​ |       ​ | ​ | ​     | ​ |         ​ | ​      |            ​ | ​ | ​                | ​ |            ​ | ​ |         ​ |
| ​                                                 |   |    ​ |   |       ​ |   | ​     |   |         ​ |        |            ​ |   | Change in        |   |            ​ |   |         ​ |
| ​                                                 | ​ |    ​ | ​ |       ​ | ​ | ​     | ​ |         ​ | ​      |            ​ | ​ | Pension Value    | ​ |            ​ | ​ |         ​ |
| ​                                                 | ​ |    ​ | ​ |       ​ | ​ | ​     | ​ |         ​ | ​      |   Non-Equity | ​ | and Nonqualified | ​ |            ​ | ​ |         ​ |
| ​                                                 | ​ |    ​ | ​ |       ​ | ​ | ​     | ​ |         ​ | ​      |    Incentive | ​ | Deferred         | ​ |          All | ​ |         ​ |
| ​                                                 | ​ |    ​ | ​ |       ​ | ​ | ​     | ​ |     Stock | ​      |         Plan | ​ | Compensation     | ​ |        Other | ​