SEC Form 4 · accession 0001184764-26-000004
OLD SECOND BANCORP INC · OSBC
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
A later amendment supersedes this filing — read the amendment. The figures below are kept as originally reported (version chain, not an overwrite).
Reporting owner
Hugh H McLean
Director
Period of report
Sep 3, 2026
Accepted (ET)
Sep 3, 2026 · 5:40 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 3, 2026 | S | 25,000 | $25.727 | D | 135,351 | D | |
| Restricted Stock Units | holding | — | — | — | 10,595 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The reporting person moved 3,077 shares that were previously held in his account from within Old Second Bancorp, Inc., as reported on a Form 4 filing dated February 24, 2026, to his brokerage account. The total shown reflects the addition of the 3,077 shares when combined with the sale of 25,000 shares.