AAON, INC. — Director's Dealing 2017

May 30, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AAON INC (AAON)
CIK: 0000824142
Period of Report: 2017-05-26

Reporting Person: SHEFFIELD KATHY I (Sr. Vice President Admin/Treas)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-26	Common Stock, par value $.004	I	177	$36.55	Disposed	6	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $.004	26173	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option (Right to Buy)	$6.89	2020-05-25	Common Stock (18750.0)	18750	Direct
Stock Option (Right to Buy)	$8.65	2022-05-15	Common Stock (22500.0)	22500	Direct
Stock Option (Right to Buy)	$21.93	2025-01-02	Common Stock (4805.0)	4805	Direct
Stock Option (Right to Buy)	$22.15	2026-01-04	Common Stock (6680.0)	6680	Direct
Stock Option (Right to Buy)	$34.1	2027-01-04	Common Stock (24700.0)	24700	Direct