OLD SECOND BANCORP INC — Director's Dealing 2017

May 23, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLD SECOND BANCORP INC (OSBC)
CIK: 0000357173
Period of Report: 2017-05-22

Reporting Person: BONIFAS EDWARD (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-22	Old Second Bancorp, Inc. Common Stock	P	516	$11.40	Acquired	149362	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option Right to Buy	$7.49	2019-02-17	Common Stock (1500)	1500	Direct
Employee Stock Opton Right to Buy	$27.75	2017-12-18	Common Stock (1500)	1500	Direct

Footnotes

F1: Included in this total are 7,244 shares held in Mr. Bonifas name outright; 132,118 shares held in a brokerage account and 10,000 shares of restricted stock units in the name of Mr. Bonifas.