GENTEX CORP

Ticker: GNTX CUSIP: 371901109 Class: COM

Joel Isaacson & Co., LLC's Holding History (CIK: 0001599330)

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

Q4 2016

Shares 500 Value ($000) $10 Avg Close $18.20 Range $16.06 - $20.39

Q3 2016

Shares 500 Value ($000) $9 Avg Close $17.28 Range $14.66 - $18.30

Q2 2016

Shares 500 Value ($000) $8 Avg Close $15.89 Range $14.69 - $16.60

Q1 2016

Shares 500 Value ($000) $8 Avg Close $14.56 Range $12.93 - $15.90

Q4 2015

Shares 500 Value ($000) $8 Avg Close $16.16 Range $15.29 - $16.91

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2016	500	$10	$18.20	$16.06 - $20.39
Q3 2016	500	$9	$17.28	$14.66 - $18.30
Q2 2016	500	$8	$15.89	$14.69 - $16.60
Q1 2016	500	$8	$14.56	$12.93 - $15.90
Q4 2015	500	$8	$16.16	$15.29 - $16.91