OLD SECOND BANCORP INC — Director's Dealing 2025

Jan 2, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLD SECOND BANCORP INC (OSBC)
CIK: 0000357173
Period of Report: 2024-12-31

Reporting Person: Gartelmann Richard A JR (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-12-31	Old Second Bancorp, Inc. Common Stock	A	45	—	Acquired	12177	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Old Second Bancorp, Inc. Common Stock	24215.6670	Direct
Restricted Stock Units	16383	Direct

Footnotes

F1: These shares were allocated during the fourth quarter pursuant to the Old Second Bancorp, Inc. Employee Salary & Savings Plan & Trust. Information herein was provided by the Plan Trustee as of 12-31-24.

F2: These shares are held in a Trust with spouse.

F3: Of this total, 10,223 shares are time-based restricted stock units with a three-year cliff vesting from the day of the grant and 6,160 shares of performance-based restricted stock units that may vest and convert to shares based on approved performance metrics.