Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
THOMPSON TED
  2. Issuer Name and Ticker or Trading Symbol
GENTEX CORP [GNTX]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
1980 76TH STREET S.W.
3. Date of Earliest Transaction (Month/Day/Year)
08/01/2005
(Street)

BYRON CENTER, MI 49315
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/01/2005 08/01/2005 M   10,000 A $ 14.2815 190,000 D  
Common Stock 08/01/2005 08/01/2005 M   10,000 A $ 15.4065 200,000 D  
Common Stock 08/01/2005 08/01/2005 M   10,000 A $ 13.705 210,000 D  
Common Stock 08/01/2005 08/01/2005 M   12,000 A $ 15.945 222,000 D  
Common Stock 08/01/2005 08/01/2005 M   12,000 A $ 15.925 234,000 D  
Common Stock 08/01/2005 08/01/2005 S   54,000 D $ 18.2563 180,000 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Employee Director Stock Option Grant $ 14.2815 08/01/2005 08/01/2005 M     10,000 11/20/1999 05/20/2009 Common Stock 10,000 $ 14.2815 0 D  
Non-Employee Director Stock Option Grant $ 15.4065 08/01/2005 08/01/2005 M     10,000 11/18/2000 05/18/2010 Common Stock 10,000 $ 15.4065 0 D  
Non-Employee Director Stock Option Grant $ 13.705 08/01/2005 08/01/2005 M     10,000 11/16/2001 05/16/2011 Common Stock 10,000 $ 13.705 0 D  
Non-Employee Director Stock Option Grant $ 15.945 08/01/2005 08/01/2005 M     12,000 11/09/2002 05/09/2012 Common Stock 12,000 $ 15.945 0 D  
Non-Employee Director Stock Option Grant $ 15.925 08/01/2005 08/01/2005 M     12,000 11/14/2003 05/14/2013 Common Stock 12,000 $ 15.925 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
THOMPSON TED
1980 76TH STREET S.W.
BYRON CENTER, MI 49315
  X      

Signatures

 /s/ Steven A. Dykman Steven A. Dykman for Ted D. Thompson by Power of Attorney   08/03/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

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