OLD SECOND BANCORP INC — Director's Dealing 2024

Mar 21, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLD SECOND BANCORP INC (OSBC)
CIK: 0000357173
Period of Report: 2024-03-20

Reporting Person: COLLINS GARY S (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-03-20	Restricted Stock Units	A	16492	—	Acquired	50330	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Old Second Bancorp, Inc. Common Stock	104152.306	Direct
Old Second Bancorp, Inc. Common Stock	76768.085	Indirect
Old Second Bancorp, Inc. Common Stock	5894	Indirect

Footnotes

F1: Each restricted stock grant unit represents a contingent right to receive one share of common stock. The reporting person was granted 16,492 restricted stock units on the date of the grant, 8,246 of which are time-based restricted stock units that vest on the third anniversary of the grant date, and 8,246 of which are performance-based restricted stock units that may vest and convert to shares within a range from 0% to 175% of the underlying performance-based restricted stock units originally awarded, depending on our compensation committee approved performance metrics. Vested shares, if any, will be delivered to the reporting person in 3 to 5 business days from the date of vesting.

F2: This total includes 25,165 shares of time-based restricted stock units and 25,165 shares of performance-based restricted stock units.

F3: Included in this total are 11,259 shares in Mr. Collins' name alone and 92.893.306 shares held in Mr, Collins' name with a broker.

F4: Included in this total are 41,000 shares in a ROTH IRA and 35,768.085 in a traditional IRA.