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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1. Name and Address of Reporting Person * BAUER FRED   2. Issuer Name and Ticker or Trading Symbol GENTEX CORP [GNTX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) Chairman of the Board & CEO (Last) (First) (Middle) 2775 N. LAKESHORE DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 03/09/2018 (Street) HOLLAND, MI 49424 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 03/09/2018 03/09/2018 M   6,627 A $ 14.69 5,536,355 D   Common Stock 03/09/2018 03/09/2018 M   250,000 A $ 12.35 5,786,355 D   Common Stock 03/09/2018 03/09/2018 M   250,000 A $ 9.115 6,036,355 D   Common Stock 03/09/2018 03/09/2018 M   208,000 A $ 11.28 6,244,355 D   Common Stock 03/09/2018 03/09/2018 S   714,627 D $ 23.3171 (1) 5,529,728 D   Common Stock 03/12/2018 03/12/2018 M   149,373 A $ 14.69 5,679,101 D   Common Stock 03/12/2018 03/12/2018 M   54,000 A $ 15.89 5,733,101 D   Common Stock 03/12/2018 03/12/2018 M   28,200 A $ 17.97 5,761,301 D   Common Stock 03/12/2018 03/12/2018 S   231,573 D $ 23.3603 (2) 5,529,728 D

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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

Employee Stock Option (Right to buy)

$ 14.69

03/09/2018

03/09/2018

M

6,627

(3)

09/20/2021

Common Stock

6,627

$ 14.69

253,373

D

Employee Stock Option (Right to buy)

$ 12.35

03/09/2018

03/09/2018

M

250,000

(4)

08/11/2018

Common Stock

250,000

$ 12.35

0

D

Employee Stock Option (Right to buy)

$ 11.28

03/09/2018

03/09/2018

M

208,000

(5)

08/15/2020

Common Stock

208,000

$ 11.28

52,000

D

Employee Stock Option (Right to buy)

$ 9.115

03/09/2018

03/09/2018

M

250,000

(4)

08/16/2019

Common Stock

250,000

$ 9.115

0

D

Employee Stock Option (Right to buy)

$ 17.97

03/12/2018

03/12/2018

M

28,200

(6)

08/17/2023

Common Stock

28,200

$ 17.97

112,800

D

Employee Stock Option (Right to buy)

$ 15.89

03/12/2018

03/12/2018

M

54,000

(7)

08/19/2022

Common Stock

54,000

$ 15.89

81,000

D

Employee Stock Option (Right to buy)

$ 14.69

03/12/2018

03/12/2018

M

149,373

(3)

09/20/2021

Common Stock

149,373

$ 14.69

104,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BAUER FRED 2775 N. LAKESHORE DRIVE HOLLAND, MI 49424			Chairman of the Board & CEO

Signatures

/s/ Kevin Nash for Fred T. Bauer by Power of Attorney		03/13/2018
**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).
(1)	This transaction was executed in multiple trades at prices ranging from $23.25 USD to $23.52 USD; the price reported above reflects the weighted average sale price.
(2)	This transaction was executed in multiple trades at prices ranging from $23.25 USD to $23.56 USD; the price reported above reflects the weighted average sale price.
(3)	7-Year Grant; 20% Vesting every year for 5 years w/2 open years beginning on 20-Aug-2015.
(4)	The option to purchase shares is fully vested.
(5)	7-Year Grant; 20% Vesting every year for 5 years w/2 open years beginning on 15-Aug-2014.
(6)	7-Year Grant; 20% Vesting every year for 5 years w/2 open years beginning on 18-Aug-2017.
(7)	7-Year Grant; 20% Vesting every year for 5 years w/2 open years beginning on 20-Aug-2015.

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