Old Second Bancorp Inc
OSBCFigures shown here come from public SEC filings. Dates beside each section show the available history.
How Old Second Bancorp Inc Makes Money
No flow chart is shown because the available revenue and expense lines do not reconcile exactly. The reported financial history below remains available.
Financial Summary
Choose a year or quarter, compare it with the same period a year earlier, and open any row for its full filing history.
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SEC filings supply these figures; updates after the dates shown are not included. This page includes 16 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated May 26, 2026. The latest institutional report shown is dated Mar 31, 2026; other ownership filings may exist.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Reported 13F positions
Each row shows what a filer reported for one date, not a current position. The link opens that filing.
| Filer | Report date | Shares | Value | Filing |
|---|---|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP | 2026-03-31 | 857,785 | $17.3M | SEC filing |
| NEW YORK STATE COMMON RETIREMENT FUND | 2026-03-31 | 14,366 | $290K | SEC filing |
| SG Americas Securities, LLC | 2026-03-31 | 11,371 | Not shown | SEC filing |
| BARTLETT & CO. WEALTH MANAGEMENT LLC | 2026-03-31 | 6,299 | $130K | SEC filing |
| NATIONAL BANK OF CANADA /FI/ | 2026-03-31 | 3 | $60 | SEC filing |
| Centennial Wealth Advisory LLC | 2026-03-31 | 17,507 | $353K | SEC filing |
| DIMENSIONAL FUND ADVISORS LP | 2026-03-31 | 2,388,862 | $48.2M | SEC filing |
| ROTHSCHILD INVESTMENT LLC | 2026-03-31 | 28,305 | $571K | SEC filing |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 2026-03-31 | 23,641 | $477K | SEC filing |
| CWM, LLC | 2026-03-31 | 23,515 | $474K | SEC filing |
| MSH Capital Advisors LLC | 2026-03-31 | 84,826 | $1.71M | SEC filing |
| Creative Planning | 2026-03-31 | 46,949 | $946K | SEC filing |
| Thrivent Financial for Lutherans | 2026-03-31 | 143,119 | Not shown | SEC filing |
| TSFG, LLC | 2026-03-31 | 7,125 | Not shown | SEC filing |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 2026-03-31 | 14,193 | $286K | SEC filing |
| FIRST TRUST ADVISORS LP | 2026-03-31 | 18,760 | $378K | SEC filing |
| NISA INVESTMENT ADVISORS, LLC | 2026-03-31 | 4,776 | $96.3K | SEC filing |
| Covestor Ltd | 2026-03-31 | 486 | Not shown | SEC filing |
| FJ Capital Management LLC | 2026-03-31 | 1,505,102 | $30.3M | SEC filing |
| Quantinno Capital Management LP | 2026-03-31 | 49,879 | $1.01M | SEC filing |
- Each value is checked against Old Second Bancorp Inc's share prices from within about three months of its report date (insiders' Form 4 trades and the latest close).
- Value not shown for 4 rows: the filed value is about 1,000 times too small for the share count at Old Second Bancorp Inc's share price.
120 filers have only one report here.
Unusually large insider trades
Each trade is compared with the other insider trades of the same kind in the same security among Old Second Bancorp Inc's recent filings on file. Size alone is context, not a prediction or evidence of improper trading.
- 2026-02-18 · Campbell Darin Patrick: Larger than all 18 other insider sales of Old Second Bancorp, Inc. Common Stock on file. SEC filing
- 2024-12-23 · Temple Rocks Patti: Larger than all 8 other insider purchases of Old Second Bancorp, Inc. Common Stock on file. SEC filing
- 2024-07-22 · Ladowicz John: Larger than 17 of the 18 other insider sales of Old Second Bancorp, Inc. Common Stock on file. SEC filing
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2026-05-22 | COLLINS GARY S · VICE CHAIRMAN | Old Second Bancorp, Inc. Common Stock | S — Open market or private sale | −5,120 | 21.12 | SEC filing |
| 2026-05-21 | COLLINS GARY S · VICE CHAIRMAN | Old Second Bancorp, Inc. Common Stock | S — Open market or private sale | −10,000 | 21.12 | SEC filing |
| 2026-05-11 | Lyons Billy J Jr. · Director | Old Second Bancorp, Inc. Common Stock | P — Open market or private purchase | +24 | 20.90 | SEC filing |
| 2026-05-11 | Pilmer Donald · EVP | Old Second Bancorp, Inc. Common Stock | S — Open market or private sale | −25,000 | 20.75 | SEC filing |
| 2026-05-08 | COLLINS GARY S · VICE CHAIRMAN | Old Second Bancorp, Inc. Common Stock | S — Open market or private sale | −5,000 | 21.23 | SEC filing |
| 2026-05-08 | COLLINS GARY S · VICE CHAIRMAN | Old Second Bancorp, Inc. Common Stock | S — Open market or private sale | −10,000 | 21.24 | SEC filing |
| 2026-03-20 | COLLINS GARY S · VICE CHAIRMAN | Old Second Bancorp, Inc. Common Stock | S — Open market or private sale | −22,154 | 19.38 | SEC filing |
| 2026-02-18 | Campbell Darin Patrick · President, Powersports Lending | Old Second Bancorp, Inc. Common Stock | S — Open market or private sale | −35,000 | 20.94 | SEC filing |
Showing 8 of 19 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-03-02 | Eccher James · CHAIRMAN AND CEO | Old Second Bancorp, Inc. Common Stock | A — Grant, award, or other acquisition | +43,818 | SEC filing |
| 2026-03-02 | ADAMS BRADLEY S. · CFO & COO | Old Second Bancorp, Inc. Common Stock | A — Grant, award, or other acquisition | +15,657 | SEC filing |
| 2026-03-02 | Pilmer Donald · EVP | Old Second Bancorp, Inc. Common Stock | A — Grant, award, or other acquisition | +9,201 | SEC filing |
| 2026-03-02 | Gartelmann Richard A JR · EVP | Old Second Bancorp, Inc. Common Stock | A — Grant, award, or other acquisition | +4,523 | SEC filing |
| 2026-03-02 | COLLINS GARY S · VICE CHAIRMAN | Old Second Bancorp, Inc. Common Stock | A — Grant, award, or other acquisition | +14,432 | SEC filing |
| 2026-03-02 | Eccher James · CHAIRMAN AND CEO | Old Second Bancorp, Inc. Common Stock | F — Payment of exercise price or tax by delivering securities | −12,838 | SEC filing |
| 2026-03-02 | Gartelmann Richard A JR · EVP | Old Second Bancorp, Inc. Common Stock | F — Payment of exercise price or tax by delivering securities | −1,537 | SEC filing |
| 2026-03-02 | ADAMS BRADLEY S. · CFO & COO | Old Second Bancorp, Inc. Common Stock | F — Payment of exercise price or tax by delivering securities | −4,587 | SEC filing |
Showing 8 of 23 rows
Other activity
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-03-31 | Gartelmann Richard A JR · EVP | Old Second Bancorp, Inc. Common Stock | J — Other acquisition or disposition | +43 | SEC filing |
| 2026-03-31 | Eccher James · CHAIRMAN AND CEO | Old Second Bancorp, Inc. Common Stock | J — Other acquisition or disposition | +22 | SEC filing |
| 2026-03-31 | Pilmer Donald · EVP | Old Second Bancorp, Inc. Common Stock | J — Other acquisition or disposition | +1 | SEC filing |
| 2026-03-31 | COLLINS GARY S · VICE CHAIRMAN | Old Second Bancorp, Inc. Common Stock | J — Other acquisition or disposition | +253 | SEC filing |
| 2026-03-31 | Eccher James · CHAIRMAN AND CEO | Old Second Bancorp, Inc. Common Stock | J — Other acquisition or disposition | +369 | SEC filing |
| 2026-03-31 | ADAMS BRADLEY S. · CFO & COO | Old Second Bancorp, Inc. Common Stock | J — Other acquisition or disposition | +35 | SEC filing |
| 2026-03-31 | Pilmer Donald · EVP | Old Second Bancorp, Inc. Common Stock | J — Other acquisition or disposition | +13 | SEC filing |
| 2025-12-31 | Eccher James · CHAIRMAN AND CEO | Old Second Bancorp, Inc. Common Stock | J — Other acquisition or disposition | +24 | SEC filing |
Showing 8 of 10 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.