GENTEX CORP

Ticker: GNTX CUSIP: 371901109 Class: COM

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

Note: Option positions (PUT/CALL) are excluded.

Q1 2016

Shares 17,556 Value ($000) $275 Avg Close $14.56 Range $12.93 - $15.90

Q4 2015

Shares 30,421 Value ($000) $487 Avg Close $16.16 Range $15.29 - $16.91

Q3 2015

Shares 31,111 Value ($000) $482 Avg Close $15.89 Range $13.84 - $16.80

Q2 2015

Shares 18,507 Value ($000) $303,885 Avg Close $17.48 Range $16.34 - $18.55

Q1 2015

Shares 15,551 Value ($000) $284,583 Avg Close $17.65 Range $15.83 - $18.80

Q4 2014

Shares 7,238 Value ($000) $261,509 Avg Close $16.61 Range $13.16 - $19.06

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2016	17,556	$275	$14.56	$12.93 - $15.90
Q4 2015	30,421	$487	$16.16	$15.29 - $16.91
Q3 2015	31,111	$482	$15.89	$13.84 - $16.80
Q2 2015	18,507	$303,885	$17.48	$16.34 - $18.55
Q1 2015	15,551	$284,583	$17.65	$15.83 - $18.80
Q4 2014	7,238	$261,509	$16.61	$13.16 - $19.06