Gary S. Collins - Dec 1, 2021 Form 4 Insider Report for OLD SECOND BANCORP INC (OSBC)

Role: VICE CHAIRMAN, Director
Signature: /s/ Shirley Cantrell, Attorney-in-Fact
Stock symbol: OSBC
Transactions as of: Dec 1, 2021
Transactions value $: $0
Form type: 4
Date filed: 12/2/2021, 10:58 AM
Previous filing: Oct 5, 2021
Next filing: Jan 4, 2022

Transactions Table

Type	Sym	Class	Transaction	Shares	Change %	Shares After	Date	Ownership	Footnotes
transaction	OSBC	Old Second Bancorp, Inc. Common Stock	Award	+2.12K	+2.84%	76.8K	Dec 1, 2021	By IRA	F1
holding	OSBC	Old Second Bancorp, Inc. Common Stock				111K	Dec 1, 2021	Direct	F2
holding	OSBC	Old Second Bancorp, Inc. Common Stock				5.35K	Dec 1, 2021	By 401-K

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Received in exchange for 50 shares of West Suburban Bancorp, Inc. ("West Suburban") common stock in connection with the merger (the "Merger") of West Suburban with and into Old Second Bancorp, Inc. ("Old Second"). The exchange ratio in the Merger was 42.413 Old Second shares and $271.15 in cash for each share of West Suburban common stock, plus cash in lieu of fractional shares. The closing price per share of West Suburban common stock on the OTC Pink Open Market on the day immediately preceding the effective date of the Merger (the last closing price available) was $801.00 per share, and the closing price per share of Old Second common stock on the effective date of the Merger was $12.35 per share.
F2	Included in this total are 69,236.306 shares in a brokerage account and 41,762 shares of restricted stock units in Mr. Collins' name alone.

Content

Received in exchange for 50 shares of West Suburban Bancorp, Inc. ("West Suburban") common stock in connection with the merger (the "Merger") of West Suburban with and into Old Second Bancorp, Inc. ("Old Second"). The exchange ratio in the Merger was 42.413 Old Second shares and $271.15 in cash for each share of West Suburban common stock, plus cash in lieu of fractional shares. The closing price per share of West Suburban common stock on the OTC Pink Open Market on the day immediately preceding the effective date of the Merger (the last closing price available) was $801.00 per share, and the closing price per share of Old Second common stock on the effective date of the Merger was $12.35 per share.

Included in this total are 69,236.306 shares in a brokerage account and 41,762 shares of restricted stock units in Mr. Collins' name alone.