SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q/A (MARK ONE) ( X ) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2002, OR ( ) TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO --------- --------- COMMISSION FILE NO. 0-10235 GENTEX CORPORATION (Exact name of registrant as specified in its charter) MICHIGAN 38-2030505 (State or other jurisdiction of (I.R.S. Employer Identification No.) incorporation or organization) 600 N. CENTENNIAL, ZEELAND, MICHIGAN 49464 (Address of principal executive offices) (Zip Code) (616) 772-1800 (Registrant's telephone number, including area code) - -------------------------------------------------------------------------------- (Former name, former address and former fiscal year, if changed since last report) Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No ----- ----- APPLICABLE ONLY TO ISSUERS INVOLVED IN BANKRUPTCY PROCEEDINGS DURING THE PRECEDING FIVE YEARS: Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. Yes No ----- ----- APPLICABLE ONLY TO CORPORATE USERS: Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date. Shares Outstanding Class at July 18, 2002 ----- ---------------- Common Stock, $0.06 Par Value 75,818,143

PART II. OTHER INFORMATION Registrant is amending this Quarterly Report on Form 10-Q solely for the purpose of filing Exhibits 99.1 and 99.2. Item 6. Exhibits and Reports on Form 8-K. (a) The following exhibits (listed by number corresponding to the Exhibit Table as Item 601 in Regulation S-K) are filed with this report: 99.1 Certificate of the Chief Executive Officer of Gentex Corporation pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. 1350). 99.2 Certificate of the Chief Financial Officer of Gentex Corporation pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. 1350).

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. GENTEX CORPORATION Date: August 14, 2002 /s/ Fred T. Bauer ----------------------- --------------------------------- Fred T. Bauer Chairman and Chief Executive Officer Date: August 14, 2002 /s/ Enoch C. Jen ------------------------ --------------------------------- Enoch C. Jen Vice President - Finance, Principal Financial and Accounting Officer

EXHIBIT LIST ------------ EXHIBIT No. DESCRIPTION ----------- ----------- 99.1 Certificate of the Chief Executive Officer of Gentex Corporation pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. 1350). 99.2 Certificate of the Chief Financial Officer of Gentex Corporation pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. 1350).

EXHIBIT 99.1 CERTIFICATE OF THE CHIEF EXECUTIVE OFFICER OF GENTEX CORPORATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. 1350): I, Fred T. Bauer, Chief Executive Officer of Gentex Corporation, certify, to the best of my knowledge and belief, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. 1350), that: (1) The quarterly report on Form 10-Q for the quarterly period ended June 30, 2002, which this statement accompanies, fully complies with requirements of Section 13(a) or 15(d) of the Securities and Exchange Act of 1934 and; (2) The information contained in this quarterly report on Form 10-Q for the quarterly period ended June 30, 2002 fairly presents, in all material respects, the financial condition and results of operations of Gentex Corporation. GENTEX CORPORATION Dated: August 14, 2002 By: /s/ Fred T. Bauer --------------- -------------------------------- Fred T. Bauer Its: Chief Executive Officer

EXHIBIT 99.2 CERTIFICATE OF THE CHIEF FINANCIAL OFFICER OF GENTEX CORPORATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. 1350): I, Enoch C. Jen, Chief Financial Officer of Gentex Corporation, certify, to the best of my knowledge and belief, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. 1350), that: (1) The quarterly report on Form 10-Q for the quarterly period ended June 30, 2002, which this statement accompanies, fully complies with requirements of Section 13(a) or 15(d) of the Securities and Exchange Act of 1934 and; (2) The information contained in this quarterly report on Form 10-Q for the quarterly period ended June 30, 2002 fairly presents, in all material respects, the financial condition and results of operations of Gentex Corporation. GENTEX CORPORATION Dated: August 14, 2002 By: /s/ Enoch C. Jen --------------- ---------------------------------- Enoch C. Jen Its: Vice President -- Finance