OLD SECOND BANCORP INC — Director's Dealing 2011

Mar 9, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OLD SECOND BANCORP INC (OSBC)
CIK: 0000357173
Period of Report: 2011-02-15

Reporting Person: SKOGLUND WILLIAM B (Director, CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-02-15	Old Second Bancorp Inc. Common Stock	A	35330	—	Acquired	97791	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Old Second Bancorp Inc. Common Stock	14206	Indirect
Old Second Bancorp Inc. Common Stock	47038	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option	$27.75	2017-12-18	Common Stock (40000)	40000	Direct
Employee Stock Option	$29.20	2016-12-19	Common Stock (32000)	32000	Direct
Employee Stock Option	$31.34	2015-12-20	Common Stock (32000)	32000	Direct
Employee Stock Option	$32.59	2014-12-21	Common Stock (32000)	32000	Direct
Employee Stock Option	$25.08	2013-12-16	Common Stock (32000)	32000	Direct
Employee stock Option	$18.81	2012-12-17	Common Stock (32000)	32000	Direct
Employee Stock Option	$14.74	2011-12-18	Common Stock (32000)	32000	Direct

Footnotes

F1: Shares represent restricted stock units granted under the Old Second Bancorp Inc. Equity Incentive Plan. Shares vest in 2014.

F2: Shares restated for a 2 for 1 stock split effected in the form of a stock dividend payable 7-28-04.

F3: Shares restated for a 4 for 3 stock split effected in the form of a stock dividend payable 6-24092 AND retated for a 2 for 1 stock split effected in the form of a stock dividend payable 7-28-04.