SEC Form 4 · accession 0001598917-26-000010
OLD SECOND BANCORP INC · OSBC
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Bradley S. Adams
Officer — CFO & COO
Period of report
Jun 30, 2026
Accepted (ET)
Jul 2, 2026 · 10:29 am 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 | Jun 30, 2026 | J | 34 | $0.00 | A | 10,193 | I | By 401-k Plan |
| Old Second Bancorp, Inc. Common StockF2 | holding | — | — | — | 160,401 | D | ||
| Restricted Stock Units | holding | — | — | — | 84,980 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Of this total, 34 shares were allocated during the second quarter pursuant to the Old Second Bancorp, Inc. Salary & Savings Plan. Information herein was provided by the Plan Trustee as of 6-30-26.
- F2Included in this total are 75,300 shares held jointly with spouse with a broker and 85,101 shares held jointly with spouse outright.