John Ladowicz - 15 Jan 2026 Form 4 Insider Report for OLD SECOND BANCORP INC (OSBC)

Role
Director
Signature
/s/ Shirley Cantrell, Attorney-in-Fact
Issuer symbol
OSBC
Transactions as of
15 Jan 2026
Net transactions value
-$99,756
Form type
4
Filing time
16 Jan 2026, 13:54:33 UTC
Previous filing
09 Dec 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Ladowicz John Director 8950 WILDLIFE LOOP, SARASOTA /s/ Shirley Cantrell, Attorney-in-Fact 16 Jan 2026 0001424453

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction OSBC Old Second Bancorp, Inc. Common Stock Sale $60,666 -2,897 -1.9% $20.94 146,757 15 Jan 2026 IRA
transaction OSBC Old Second Bancorp, Inc. Common Stock Sale $39,090 -1,865 -1.3% $20.96 144,892 15 Jan 2026 IRA
holding OSBC Old Second Bancorp, Inc. Common Stock 36,121 15 Jan 2026 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

John Ladowicz is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.