Old Second Bancorp (OSBC): Director reported a transaction in 3,077 shares

3,077

Shares

Traded

Feb 21, 2026

Filed

Oct 20, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jan 21, 2026Company filing · Form 8-K · ResultsReported its results

What came next

1. Apr 22, 2026Company filing · Form 8-K · ResultsReported its results
2. Jun 5, 2026Company filing · Form 8-K · Executive changeChanged a top executive or board member“On June 5, 2026, Dennis Klaeser, a member of the Board of Directors (the “Board”) of Old Second Bancorp, Inc. (“Old Second”) and the Board of Directors (the “Bank Board”) of its subsidiary bank, Old Second National Bank, notified Old Second of his resignation from the Board and Bank Board.”

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Old Second Bancorp

For Old Second Bancorp, OQRO holds 2 insider filings (SEC Form 4 or Form 144) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its OSBC page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Old Second Bancorp

• SEC Form 4Nov 10, 2026
• SEC Form 4Sep 23, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRFeb 13, 2026
• SEC Form 13F-HRNov 13, 2025
• SEC Form 13F-HRAug 13, 2025

Everything OQRO holds on this company is on its OSBC page.