SEC Form 4 · accession 0002074132-26-000008
OLD SECOND BANCORP INC · OSBC
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Darin Patrick Campbell
Officer — President, Powersports Lending · Director
Period of report
Sep 2, 2026
Accepted (ET)
Sep 3, 2026 · 5:33 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000357173
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Old Second Bancorp, Inc. Common StockF1 | Sep 2, 2026 | S | 24,000 | $25.533 | D | 250,589 | D | |
| Restricted Stock | holding | — | — | — | 10,562 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.50 to $25.60, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.