OLD SECOND BANCORP INC — Director's Dealing 2025

Mar 6, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLD SECOND BANCORP INC (OSBC)
CIK: 0000357173
Period of Report: 2025-03-04

Reporting Person: Eccher James (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-03-04	Old Second Bancorp, Inc. Common Stock	A	30203	—	Acquired	331688	Direct
2025-03-04	Old Second Bancorp, Inc. Common Stock	F	8848	$17.65	Disposed	322840	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Old Second Bancorp, Inc. Common Stock	32258	Indirect
Old Second Bancorp, Inc. Common Stock	6247	Indirect
Restricted Stock Units	184318	Direct

Footnotes

F1: Shares delivered to the reporting person pursuant to vesting of performance-based restricted stock units granted under the Old Second Bancorp, Inc. 2019 Equity Incentive Plan, as Amended and Restated and vested upon achievement of performance goals for the applicable performance period. The reporting person reported an acquisition of 17,258 on Form 4 filed on February 15, 2022, which represented the number of shares that would be delivered if target performance was achieved during the performance period. Actual performance exceeded the target performance for the performance period which resulted in an additional grant of 12,945 shares.

F2: Shares withheld for taxes upon settlement in shares of the performance-based restricted stock units previously granted to the reporting person.

F3: Included in this total are 301,337 shares held with a broker; 21,355 shares held outright in the reporting person's name and 148 shares held jointly with spouse.