GENTEX CORP - Director's Dealing 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GENTEX CORP (GNTX)
CIK: 0000355811
Period of Report: 2010-12-28

Reporting Person: Arnold John W (VP of Operations Auto Products)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-12-28	Common Stock	S	4800	$29.4055	Disposed	10182	Direct
2010-12-29	Common Stock	M	2360	$19.50	Acquired	12542	Direct
2010-12-29	Common Stock	M	2526	$15.85	Acquired	15068	Direct
2010-12-29	Common Stock	M	2654	$18.12	Acquired	17722	Direct
2010-12-29	Common Stock	M	2788	$8.30	Acquired	20510	Direct
2010-12-29	Common Stock	M	2928	$18.03	Acquired	23438	Direct
2010-12-29	Common Stock	S	13256	$29.6329	Disposed	10182	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-12-28	Employee Stock Option (Right to Buy)	$29.46	A	15380	Acquired	2017-12-28	Common Stock (15380)	Direct
2010-12-29	Employee Stock Option (Right to Buy)	$19.50	M	2360	Disposed	2012-12-27	Common Stock (2360)	Direct
2010-12-29	Employee Stock Option (Right to Buy)	$15.85	M	2526	Disposed	2013-12-22	Common Stock (2526)	Direct
2010-12-29	Employee Stock Option (Right to Buy)	$18.12	M	2654	Disposed	2014-12-27	Common Stock (2654)	Direct
2010-12-29	Employee Stock Option (Right to Buy)	$8.30	M	2788	Disposed	2015-12-24	Common Stock (2788)	Direct
2010-12-29	Employee Stock Option (Right to Buy)	$18.03	M	2928	Disposed	2016-12-29	Common Stock (2928)	Direct

F1: These shares become exercisable as to 20% one year after date of grant and an additional 20% at each ensuing anniversary date.

F2: Options granted under the Gentex Corporation Employee Stock Option Plan, which is a Rule 16B-3 Plan.