Quick Takeaways
- John Ladowicz has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $3,741,295.
- Recent insider filing activity is available below.
- Info
- Insider Ownership
Insider Trading & Ownership of John Ladowicz
- Location
- Frankfort, IL
- Summary
- The estimated net worth of John Ladowicz is at least $3,741,295 dollars as of 16 Jan 2026. John Ladowicz is the Director of OLD SECOND BANCORP INC and owns shares of OLD SECOND BANCORP INC (OSBC) stock worth about $3.74M.
- Signature
- /s/ Shirley Cantrell, Attorney-in-Fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
Follow John Ladowicz and return when a new Insider Trading filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
What Changed
- Largest disclosed position: OLD SECOND BANCORP INC ($3,741,295).
- Past-year value change for that position: -$599,747.
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of John Ladowicz
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| OSBC | OLD SECOND BANCORP INC | Director | $3,741,295 | -$599,747 | -14% | 15 Jan 2026 |
Insider Transactions Reported by John Ladowicz:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.