Richard A. Gartelmann JR - Sep 30, 2025 Form 4 Insider Report for OLD SECOND BANCORP INC (OSBC)

Role
EVP
Signature
/s/ Shirley Cantrell, Attorney-in-Fact
Stock symbol
OSBC
Transactions as of
Sep 30, 2025
Transactions value $
$0
Form type
4
Date filed
10/1/2025, 04:26 PM
Previous filing
Jul 8, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Gartelmann Richard A JR EVP 37 S. RIVER ST., AURORA /s/ Shirley Cantrell, Attorney-in-Fact 2025-10-01 0001840027

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction OSBC Old Second Bancorp, Inc. Common Stock Other $0 +44 +0.35% $0.00 12.5K Sep 30, 2025 By 401-K F1
holding OSBC Old Second Bancorp, Inc. Common Stock 26.9K Sep 30, 2025 Direct F2
holding OSBC Restricted Stock Units 20.6K Sep 30, 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Of this total, 44 shares were allocated during the third quarter pursuant to the Old Second Bancorp, Inc. Salary and Savings Plan. Information was provided herein by the Plan Trustee as of 9-30-25.
F2 These shares are held in the reporting person's name alone.