<SEC-DOCUMENT>0000355811-18-000030-index.html : 20180530
<SEC-HEADER>0000355811-18-000030.hdr.sgml : 20180530
<ACCEPTANCE-DATETIME>20180530093529
ACCESSION NUMBER:		0000355811-18-000030
CONFORMED SUBMISSION TYPE:	SD
PUBLIC DOCUMENT COUNT:		2
<RULE>
<RULE-NAME>13p-1
<ITEM>
<ITEM-NUMBER>1.01
<ITEM-PERIOD>20171231
</ITEM>
<ITEM>
<ITEM-NUMBER>1.02
<ITEM-PERIOD>20171231
</ITEM>
</RULE>
FILED AS OF DATE:		20180530
DATE AS OF CHANGE:		20180530

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GENTEX CORP
		CENTRAL INDEX KEY:			0000355811
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
		IRS NUMBER:				382030505
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SD
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-10235
		FILM NUMBER:		18866729

	BUSINESS ADDRESS:	
		STREET 1:		600 N CENTENNIAL ST
		CITY:			ZEELAND
		STATE:			MI
		ZIP:			49464
		BUSINESS PHONE:		6167721800

	MAIL ADDRESS:	
		STREET 1:		600 N CENTENNIAL STREET
		CITY:			ZEELAND
		STATE:			MI
		ZIP:			49464
</SEC-HEADER>
<DOCUMENT>
<TYPE>SD
<SEQUENCE>1
<FILENAME>sd05302018.htm
<DESCRIPTION>SD
<TEXT>
Document 1 - file: sd05302018.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.01
<SEQUENCE>2
<FILENAME>gntxsd5302018-exhibit101.htm
<DESCRIPTION>EXHIBIT 1.01
<TEXT>
Document 2 - file: gntxsd5302018-exhibit101.htm

</DOCUMENT>
</SEC-DOCUMENT>