# EDGAR Filing Document

**Accession Number:** 0000357173
**File Stem:** 0000357173-25-000055
**Filing Date:** 2025-6
**Character Count:** 5295
**Document Hash:** 732a7b4f437c33681b2c8a01540ab894
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000357173-25-000055.hdr.sgml**: 20250603

**ACCESSION NUMBER**: 0000357173-25-000055

**CONFORMED SUBMISSION TYPE**: 8-K/A

**PUBLIC DOCUMENT COUNT**: 13

**CONFORMED PERIOD OF REPORT**: 20250520

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**FILED AS OF DATE**: 20250603

**DATE AS OF CHANGE**: 20250603

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OLD SECOND BANCORP INC
- **CENTRAL INDEX KEY:** 0000357173
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 363143493
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-10537
- **FILM NUMBER:** 251018063

**BUSINESS ADDRESS:**
- **STREET 1:** 37 S RIVER ST
- **CITY:** AURORA
- **STATE:** IL
- **ZIP:** 60507
- **BUSINESS PHONE:** 6308920202

**MAIL ADDRESS:**
- **STREET 1:** 37 SOUTH RIVER STREET
- **CITY:** AURORA
- **STATE:** IL
- **ZIP:** 60507

?xml version='1.0' encoding='ASCII'? Old Second Bancorp, Inc

I

**United States**

**Securities And Exchange Commission**

**Washington, D.C. 20549**

**FORM 8-K/A**

**(AMENDMENT NO. 1)**

**Current Report**

#### Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): **May 20, 2025**

![Graphic](tmb-20250520x8ka001.jpg)

(Exact name of registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| &nbsp;&nbsp;**Delaware** | &nbsp;&nbsp;**000-10537** | &nbsp;&nbsp;**36-3143493** |
| &nbsp;&nbsp;(State or other jurisdiction of incorporation) | &nbsp;&nbsp;(Commission File Number) | &nbsp;&nbsp;(I.R.S. Employer Identification No.) |

---

**37 South River StreetAurora, Illinois 60507**(Address of principal executive offices) (Zip code)

#### (630) 892-0202 (Registrant's telephone number, including area code)
**N/A**

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (*see* General Instruction A.2. below):

**☐** Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

**☐** Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

**☐** Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

**☐** Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| Common Stock | OSBC | The Nasdaq Stock Market |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 under the Securities Act (17 CFR 230.405) or Rule 12b-2 under the Exchange Act (17 CFR 240.12b-2).

Emerging growth company **☐**

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. **☐**

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**Explanatory Note**

This Current Report on Form 8-K/A amends the Current Report on Form 8-K filed on May 20, 2025 (the "Original Form 8-K") by Old Second Bancorp, Inc. (the "Company") and is being filed to disclose the decision of the Company regarding the frequency with which it will submit proposals to approve executive compensation for a non-binding, advisory vote of stockholders (a "Say-on-Pay") at future annual meetings of stockholders. No other changes have been made to the Original Form 8-K.

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| | |
|:---|:---|
| **Item 5.07** | **Submission of Matters to a Vote of Security Holders.** |

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As reported in the Original Form 8-K, at the annual meeting of stockholders held on May 20, 2025, the Company's stockholders cast the greatest number of votes in favor of holding future Say-on-Pay votes on an annual basis.

In accordance with the recommendation of the Board of Directors, as set forth in the Company's Definitive Proxy Statement on Schedule 14A filed with the U.S. Securities and Exchange Commission on April 18, 2025, and consistent with the voting results, the Board has determined that the non-binding advisory Say-on-Pay vote will be conducted annually. This policy will remain in effect until the next required stockholder vote on the frequency of Say-on-Pay votes, or until the Board determines that a different frequency is in the best interests of the Company's stockholders.

**Signature**

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | | |
|:---|:---|:---|
|  | **OLD SECOND BANCORP, INC.** | **OLD SECOND BANCORP, INC.** |
| Dated: June 3, 2025 | By: | /s/ Bradley S. Adams |
|  |  | Bradley S. Adams |
|  |  | Executive Vice President, |
|  |  | Chief Operating Officer, and |
|  |  | Chief Financial Officer |

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