Skip to main content

OLD SECOND BANCORP INC

For the period ended Sep 30, 2026. Filed Nov 4, 2026.

View on SEC.gov

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 4, 2026

OSBC$25.09+2.8%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

See the whole filing, with its images and exhibits

Table of Contents

Cautionary Note Regarding Forward-Looking Statements

​​​
​PART I​
​​Page Number
Item 1.Financial Statements5
Item 2.Management’s Discussion and Analysis of Financial Condition and Results of Operations44
Item 3.Quantitative and Qualitative Disclosures about Market Risk68
Item 4.Controls and Procedures69
​PART II​
​​​
Item 1.Legal Proceedings70
Item 1A.Risk Factors70
Item 2.Unregistered Sales of Equity Securities and Use of Proceeds70
Item 3.Defaults Upon Senior Securities71
Item 4.Mine Safety Disclosures71
Item 5.Other Information71
Item 6.Exhibits72
​​​
​Signatures73
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.