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: Gottschalk Keith (EVP)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-05-27	Old Second Bancorp, Inc. Common Stock	A	36.054	$7.35	Acquired	26536.054	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Old Second Bancorp, Inc. Common Stock	6273	Indirect

Footnotes

F1: Of this total, 26,500 shares are restricted stock units, 36.054 shares are dividend equivalents in the form of restricted stock unit and 1,347 shares are held outright in Mr. Gottschalk's name.

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.