OLD SECOND BANCORP INC — Director's Dealing 2016

May 28, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLD SECOND BANCORP INC (OSBC)
CIK: 0000357173
Period of Report: 2016-05-27

Reporting Person: Eccher James (Director, CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-05-27	Old Second Bancorp, Inc. Common Stock	A	129.251	$7.35	Acquired	164462.251	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Old Second Bancorp, Inc. Common Stock	8584	Indirect
Old Second Bancorp, Inc. Common Stock	1960	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option	$27.75	2017-12-18	Common Stock (20000)	20000	Direct
Employee Stock Option	$29.20	2016-12-19	Common Stock (12000)	12000	Direct

Footnotes

F1: Included in this total are 148 shares held jointly with spouse; 53,910 shares held in a brokerage account; 17,275 shares held in Mr. Eccher's name alone, 129.251 shares are dividend equivalents in the form of restricted stock units and 95,000 shares of restricted stock units in the name of Mr. Eccher.

F2: These shares represent a dividend equivalent in the form of restricted stock units associated with the 2014, 2015 and 2016 grants. These shares will follow the same 3-year vesting period guidelines.