Company: OSBC
Filing Date: 2025-04-18
Form Type: DEF 14A
Source: 0001558370-25-005000
Chunk: 78

Company: OLD SECOND BANCORP INC
Filing Date: 2025-04-18
Form: DEF 14A
Chunk 78
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 Company and in the KBW Bank Index, respectively. All dollar values assume reinvestment of pre-tax dividends paid by companies, where applicable, included in the KBW Bank Index. Historical stock performance is not necessarily indicative of future stock performance. |

| (6) | Adjusted Net Income is a non-GAAP measure we use to compare periods by excluding material transactions that are not considered core to our business or may not reflect the effects of operations. We determined Adjusted Net Income to be the most important financial performance measure used to link Company performance to Compensation Actually Paid to our PEO and Non-PEO NEOs in 2024. The Adjusted Net Income used for compensation differs from that disclosed in the Form 10-K. See our reconciliation to GAAP Net Income on page 50. |

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#### Relationship Between Pay and PerformanceThe relationship between compensation actually paid to our PEO and the average of the compensation actually paid to our other non-PEO NEOs and the performance measures shown in the table above is described in further detail below.Relationship Between Compensation Actually Paid and Our TSR and Peer Group TSRThe graph below shows the relationship between the compensation actually paid to our PEO and the average compensation actually paid to our non-PEO NEOs and our TSR and the Peer Group TSR.​​​Relationship Between Compensation Actually Paid and Our Net IncomeThe graph below shows the relationship between the compensation actually paid to our PEO and the average compensation actually paid to our non-PEO NEOs and our net income.​​​

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Relationship Between Compensation Actually Paid and Our Adjusted Net Income The graph below shows the relationship between the compensation actually paid to our PEO and the average compensation actually paid to our non-PEO NEOs and our Adjusted Net Income. Tabular List of Financial Performance Measures

We consider the following to be the most important financial performance measures used to link compensation actually paid to our NEOs, for 2024, to Company performance. The role of each of these performance measures on our NEOs’ compensation is discussed in the Compensation Discussion and Analysis above. The measures in this table are not ranked.

| ​                         |
| Performance Measures      |
| Adjusted Net Income       |
| Asset/Credit Quality      |
| Adjusted Efficiency Ratio |

Reconciliation of GAAP Net Income to Non-GAAP (Adjusted) Net Income

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   Year Ended |      ​ | ​ |    ​ |      ​ | ​ |    ​