AAON, INC. — Director's Dealing 2010

May 25, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AAON INC (AAON)
CIK: 0000824142
Period of Report: 2010-05-25

Reporting Person: ASBJORNSON NORMAN H (Director, President, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-25	Common Stock, par value $.004	A	1050	—	Acquired	3263724	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $.004	149150	Indirect
Common Stock, par value $.004	1097	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Plan C Stock Option	$13.6	2014-05-25	Common Stock (3000)	1	Direct
Plan C Stock Option	$12	2015-05-24	Common Stock (3000)	1	Direct
Plan C Stock Option	$15.55	2016-05-31	Common Stock (3000)	1	Direct

Footnotes

F1: Restricted Stock Grant