OLD SECOND BANCORP INC — Director's Dealing 2024

Jul 2, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLD SECOND BANCORP INC (OSBC)
CIK: 0000357173
Period of Report: 2024-03-31

Reporting Person: Pilmer Donald (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-03-31	Old Second Bancorp, Inc. Common Stock	J	1	—	Acquired	178	Indirect
2024-06-30	Old Second Bancorp, Inc. Common Stock	J	1	—	Acquired	179	Indirect
2024-03-31	Old Second Bancorp, Inc. Common Stock	J	15	—	Acquired	3915	Indirect
2024-06-30	Old Second Bancorp, Inc. Common Stock	J	13	—	Acquired	3928	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Old Second Bancorp, Inc. Common Stock	1450	Indirect
Old Second Bancorp, Inc. Common Stock	57649	Direct
Restricted Stock Units	34836	Direct

Footnotes

F1: Of this total, 1 share was allocated during the first quarter of 2024, pursuant to the Old Second Bancorp, Inc. Profit Sharing Plan and Trust. Information herein was provided by the plan Trustee as of 3-31-24.

F2: Of this total, 1 share was allocated during the second quarter of 2024, pursuant to the Old Second Bancorp, Inc. Profit Sharing Plan and Trust. Information herein was provided by the plan Trustee as of 6-30-24.

F3: Of this total, 15 shares were allocated during the first quarter of 2024, pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the plan Trustee as of 3-31-24.

F4: Of this total, 13 shares were allocated during the second quarter of 2024, pursuant to the Old Second Bancorp, Inc. Employee Salary and Savings Plan. Information herein was provided by the plan Trustee as of 6-30-24.

F5: These shares are held in spouse's IRA for which Mr. Pilmer is listed as a beneficiary.

F6: Of this total are 21,548 shares of time-based restricted stock units and 13,288 shares of performance-based restricted stock units.