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General | Insiders | Insider Transactions | Monthly Overview | Weekly Overview

Overview of all insider trading transactions in GENTEX CORP. Get notifications about new insider transactions in GENTEX CORP for free.

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Date	Ticker	Company	Owner	Relationship	Transaction	Code	Cost ($)	Shares	Transaction Value ($)	Total Shares	% Holdings
Nov 01 2011	GNTX	GENTEX CORP	GOODE GARY F	Director	Option Exercise	M	15.93	12,000	191,100	0
Nov 01 2011	GNTX	GENTEX CORP	GOODE GARY F	Director	Sell	S	30.91	1,200	37,092	8,000	9.2 K to 8 K (-13.04 %)
Nov 01 2011	GNTX	GENTEX CORP	GOODE GARY F	Director	Sell	S	30.56	10,800	330,059	9,200	20 K to 9.2 K (-54.00 %)
Nov 01 2011	GNTX	GENTEX CORP	GOODE GARY F	Director	Buy	M	15.93	12,000	191,100	20,000	8 K to 20 K (+150.00 %)
Aug 22 2011	GNTX	GENTEX CORP	GOODE GARY F	Director	Grant	A	22.50	1,000	22,500	8,000	7 K to 8 K (+14.29 %)
Sep 30 2011	GNTX	GENTEX CORP	Newton Mark W	Senior Vice Preside ...	Option Exercise	A	24.96	16,440	410,342	16,440
Aug 15 2011	GNTX	GENTEX CORP	Schaum Richard O	Director	Grant	A	25.29	2,000	50,586	2,000	0 to 2 K
Aug 11 2011	GNTX	GENTEX CORP	Wallace James H	Director	Grant	A	23.70	2,000	47,402	9,500	7.5 K to 9.5 K (+26.67 %)
Aug 15 2011	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Option Exercise	A	24.70	125,000	3,087,500	125,000
Aug 02 2011	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Option Exercise	M	17.25	189,000	3,259,305	0
Aug 02 2011	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Buy	M	17.25	189,000	3,259,305	4,335,496	4.1 M to 4.3 M (+4.56 %)
May 16 2011	GNTX	GENTEX CORP	Wallace James H	Director	Option Exercise	A	31.71	6,000	190,260	6,000
May 16 2011	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Option Exercise	A	31.71	6,000	190,260	6,000
May 16 2011	GNTX	GENTEX CORP	SOTOK FREDERICK A	Director	Option Exercise	A	31.71	6,000	190,260	6,000
May 16 2011	GNTX	GENTEX CORP	Schaum Richard O	Director	Option Exercise	A	31.71	6,000	190,260	6,000
May 16 2011	GNTX	GENTEX CORP	MULDER JOHN A	Director	Option Exercise	A	31.71	6,000	190,260	6,000
May 16 2011	GNTX	GENTEX CORP	GOODE GARY F	Director	Option Exercise	A	31.71	6,000	190,260	6,000
May 16 2011	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Option Exercise	A	31.71	6,000	190,260	6,000
May 16 2011	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Sell	S	31.46	41,100	1,292,805	250,150	291.3 K to 250.2 K (-14.11 %)
May 16 2011	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Gift	G	31.12	8,850	275,412	291,250	300.1 K to 291.3 K (-2.95 %)
May 13 2011	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Option Exercise	M	8.30	2,640	21,912	7,920
May 13 2011	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Sell	S	32.00	2,640	84,480	19,486	22.1 K to 19.5 K (-11.93 %)
May 13 2011	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Buy	M	8.30	2,640	21,912	22,126	19.5 K to 22.1 K (+13.55 %)
May 04 2011	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Option Exercise	M	9.96	14,475	144,171	14,475
May 04 2011	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Sell	S	31.50	14,475	455,947	61,044	75.5 K to 61 K (-19.17 %)
May 04 2011	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Buy	M	9.96	14,475	144,171	75,519	61 K to 75.5 K (+23.71 %)
May 03 2011	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Option Exercise	M	14.76	6,000	88,560	0
May 03 2011	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Option Exercise	M	17.71	6,000	106,260	0
May 03 2011	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Sell	S	31.04	12,000	372,481	5,000	17 K to 5 K (-70.59 %)
May 03 2011	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Buy	M	14.76	6,000	88,560	17,000	11 K to 17 K (+54.55 %)
May 03 2011	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Buy	M	17.71	6,000	106,260	11,000	5 K to 11 K (+120.00 %)
Feb 11 2011	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Option Exercise	M	15.85	7,200	114,120	2,400
Feb 11 2011	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Sell	S	31.40	7,200	226,113	19,486	26.7 K to 19.5 K (-26.98 %)
Feb 11 2011	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Buy	M	15.85	7,200	114,120	26,686	19.5 K to 26.7 K (+36.95 %)
Feb 14 2011	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Option Exercise	M	16.25	15,750	255,938	10,500
Feb 14 2011	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Sell	S	31.84	15,750	501,456	61,044	76.8 K to 61 K (-20.51 %)
Feb 14 2011	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Buy	M	16.25	15,750	255,938	76,794	61 K to 76.8 K (+25.80 %)
Feb 14 2011	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Gift	G	31.23	1,962	61,263	61,044	63 K to 61 K (-3.11 %)
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Option Exercise	M	21.12	6,000	126,720	0
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Option Exercise	M	11.09	6,000	66,540	0
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Option Exercise	M	19.34	6,000	116,040	0
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Option Exercise	M	18.41	6,000	110,460	0
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Option Exercise	M	14.76	6,000	88,560	0
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Option Exercise	M	17.71	6,000	106,260	0
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Option Exercise	M	18.04	12,000	216,420	0
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Option Exercise	M	15.93	12,000	191,100	0
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Sell	S	31.20	60,000	1,871,826	0	60 K to 0 (-100.00 %)
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Buy	M	21.12	6,000	126,720	60,000	54 K to 60 K (+11.11 %)
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Buy	M	11.09	6,000	66,540	54,000	48 K to 54 K (+12.50 %)
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Buy	M	19.34	6,000	116,040	48,000	42 K to 48 K (+14.29 %)
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Buy	M	18.41	6,000	110,460	42,000	36 K to 42 K (+16.67 %)
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Buy	M	14.76	6,000	88,560	36,000	30 K to 36 K (+20.00 %)
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Buy	M	17.71	6,000	106,260	30,000	24 K to 30 K (+25.00 %)
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Buy	M	18.04	12,000	216,420	24,000	12 K to 24 K (+100.00 %)
Feb 08 2011	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Buy	M	15.93	12,000	191,100	12,000	0 to 12 K
Feb 02 2011	GNTX	GENTEX CORP	GOODE GARY F	Director	Option Exercise	M	15.80	4,176	65,960	0
Feb 02 2011	GNTX	GENTEX CORP	GOODE GARY F	Director	Sell	S	32.28	4,176	134,807	7,000	11.2 K to 7 K (-37.37 %)
Feb 02 2011	GNTX	GENTEX CORP	GOODE GARY F	Director	Buy	M	15.80	4,176	65,960	11,176	7 K to 11.2 K (+59.66 %)
Feb 02 2011	GNTX	GENTEX CORP	SOTOK FREDERICK A	Director	Option Exercise	M	18.04	6,000	108,210	0
Feb 02 2011	GNTX	GENTEX CORP	SOTOK FREDERICK A	Director	Sell	S	32.15	6,000	192,875	13,668	19.7 K to 13.7 K (-30.51 %)
Feb 02 2011	GNTX	GENTEX CORP	SOTOK FREDERICK A	Director	Buy	M	18.04	6,000	108,210	19,668	13.7 K to 19.7 K (+43.90 %)
Feb 01 2011	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Sell	S	31.77	13,150	417,829	300,100	313.3 K to 300.1 K (-4.20 %)
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Option Exercise	M	18.03	2,928	52,792	11,712
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Option Exercise	M	8.30	2,788	23,140	8,364
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Option Exercise	M	18.12	2,654	48,090	5,308
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Option Exercise	M	15.85	2,526	40,037	2,526
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Option Exercise	M	19.50	2,360	46,020	0
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Option Exercise	A	29.46	15,380	453,095	15,380
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Sell	S	29.63	13,256	392,814	10,182	23.4 K to 10.2 K (-56.56 %)
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Buy	M	18.03	2,928	52,792	23,438	20.5 K to 23.4 K (+14.28 %)
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Buy	M	8.30	2,788	23,140	20,510	17.7 K to 20.5 K (+15.73 %)
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Buy	M	18.12	2,654	48,090	17,722	15.1 K to 17.7 K (+17.61 %)
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Buy	M	15.85	2,526	40,037	15,068	12.5 K to 15.1 K (+20.14 %)
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Buy	M	19.50	2,360	46,020	12,542	10.2 K to 12.5 K (+23.18 %)
Dec 30 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Sell	S	29.41	4,800	141,146	10,182	15 K to 10.2 K (-32.04 %)
Dec 29 2010	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Option Exercise	A	29.46	14,550	428,643	14,550
Dec 16 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Option Exercise	M	14.25	784	11,172	13,136
Dec 16 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Option Exercise	M	14.30	4,608	65,894	6,912
Dec 16 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Option Exercise	M	14.36	6,400	91,904	1,600
Dec 16 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Sell	S	29.13	11,792	343,479	23,200	35 K to 23.2 K (-33.70 %)
Dec 16 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Buy	M	14.25	784	11,172	34,992	34.2 K to 35 K (+2.29 %)
Dec 16 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Buy	M	14.30	4,608	65,894	34,208	29.6 K to 34.2 K (+15.57 %)
Dec 16 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Buy	M	14.36	6,400	91,904	29,600	23.2 K to 29.6 K (+27.59 %)
Dec 15 2010	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	29.15	100,000	2,914,810	4,146,496	4.2 M to 4.1 M (-2.35 %)
Dec 14 2010	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	29.04	200,000	5,808,380	4,246,496	4.4 M to 4.2 M (-4.50 %)
Dec 14 2010	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	28.86	200,000	5,772,560	4,446,496	4.6 M to 4.4 M (-4.30 %)
Dec 14 2010	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Option Exercise	M	18.04	12,000	216,420	0
Dec 14 2010	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Option Exercise	M	20.34	5,852	119,030	0
Dec 14 2010	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Sell	S	29.01	17,852	517,894	5,000	22.9 K to 5 K (-78.12 %)
Dec 14 2010	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Buy	M	18.04	12,000	216,420	22,852	10.9 K to 22.9 K (+110.58 %)
Dec 14 2010	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Buy	M	20.34	5,852	119,030	10,852	5 K to 10.9 K (+117.04 %)
Dec 13 2010	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Option Exercise	M	18.04	12,000	216,420	0
Dec 13 2010	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Option Exercise	M	15.93	12,000	191,100	0
Dec 13 2010	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Option Exercise	M	15.95	12,000	191,340	0
Dec 13 2010	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Option Exercise	M	13.71	10,000	137,050	0
Dec 13 2010	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Sell	S	28.76	46,000	1,322,928	0	46 K to 0 (-100.00 %)
Dec 13 2010	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Buy	M	18.04	12,000	216,420	46,000	34 K to 46 K (+35.29 %)
Dec 13 2010	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Buy	M	15.93	12,000	191,100	34,000	22 K to 34 K (+54.55 %)
Dec 13 2010	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Buy	M	15.95	12,000	191,340	22,000	10 K to 22 K (+120.00 %)
Dec 13 2010	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Buy	M	13.71	10,000	137,050	10,000	0 to 10 K
Dec 10 2010	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Option Exercise	M	21.10	38,400	810,240	0
Dec 10 2010	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Sell	S	29.82	38,400	1,145,061	65,006	103.4 K to 65 K (-37.14 %)
Dec 10 2010	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Buy	M	21.10	38,400	810,240	103,406	65 K to 103.4 K (+59.07 %)
Dec 08 2010	GNTX	GENTEX CORP	MULDER JOHN A	Director	Option Exercise	M	19.34	6,000	116,040	0
Dec 08 2010	GNTX	GENTEX CORP	MULDER JOHN A	Director	Option Exercise	M	18.41	6,000	110,460	0
Dec 08 2010	GNTX	GENTEX CORP	MULDER JOHN A	Director	Option Exercise	M	17.71	6,000	106,260	0
Dec 08 2010	GNTX	GENTEX CORP	MULDER JOHN A	Director	Option Exercise	M	18.04	12,000	216,420	0
Dec 08 2010	GNTX	GENTEX CORP	MULDER JOHN A	Director	Sell	S	27.15	30,000	814,500	53,308	83.3 K to 53.3 K (-36.01 %)
Dec 08 2010	GNTX	GENTEX CORP	MULDER JOHN A	Director	Buy	M	19.34	6,000	116,040	83,308	77.3 K to 83.3 K (+7.76 %)
Dec 08 2010	GNTX	GENTEX CORP	MULDER JOHN A	Director	Buy	M	18.41	6,000	110,460	77,308	71.3 K to 77.3 K (+8.41 %)
Dec 08 2010	GNTX	GENTEX CORP	MULDER JOHN A	Director	Buy	M	17.71	6,000	106,260	71,308	65.3 K to 71.3 K (+9.19 %)
Dec 08 2010	GNTX	GENTEX CORP	MULDER JOHN A	Director	Buy	M	18.04	12,000	216,420	65,308	53.3 K to 65.3 K (+22.51 %)
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Option Exercise	M	21.12	6,000	126,720	0
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Option Exercise	M	11.09	6,000	66,540	0
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Option Exercise	M	19.34	6,000	116,040	0
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Option Exercise	M	18.41	6,000	110,460	0
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Option Exercise	M	14.76	6,000	88,560	0
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Option Exercise	M	17.71	6,000	106,260	0
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Sell	S	25.06	42,013	1,052,963	0	42 K to 0 (-100.00 %)
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Buy	M	21.12	6,000	126,720	42,013	36 K to 42 K (+16.66 %)
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Buy	M	11.09	6,000	66,540	36,013	30 K to 36 K (+19.99 %)
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Buy	M	19.34	6,000	116,040	30,013	24 K to 30 K (+24.99 %)
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Buy	M	18.41	6,000	110,460	24,013	18 K to 24 K (+33.31 %)
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Buy	M	14.76	6,000	88,560	18,013	12 K to 18 K (+49.95 %)
Dec 07 2010	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Buy	M	17.71	6,000	106,260	12,013	6 K to 12 K (+99.78 %)
Dec 06 2010	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Option Exercise	M	15.85	2,400	38,040	9,600
Dec 06 2010	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Sell	S	26.25	2,400	62,992	19,486	21.9 K to 19.5 K (-10.97 %)
Dec 06 2010	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Buy	M	15.85	2,400	38,040	21,886	19.5 K to 21.9 K (+12.32 %)
Dec 03 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Option Exercise	M	19.50	9,440	184,080	2,360
Dec 03 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Option Exercise	M	21.50	21,000	451,500	0
Dec 03 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Sell	S	21.90	30,440	666,663	14,982	45.4 K to 15 K (-67.02 %)
Dec 03 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Buy	M	19.50	9,440	184,080	45,422	36 K to 45.4 K (+26.24 %)
Dec 03 2010	GNTX	GENTEX CORP	Arnold John W	VP of Operations Au ...	Buy	M	21.50	21,000	451,500	35,982	15 K to 36 K (+140.17 %)
Nov 10 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Option Exercise	M	19.59	5,760	112,838	3,840
Nov 10 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Sell	S	22.07	5,760	127,104	23,200	29 K to 23.2 K (-19.89 %)
Nov 10 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Buy	M	19.59	5,760	112,838	28,960	23.2 K to 29 K (+24.83 %)
Nov 09 2010	GNTX	GENTEX CORP	MULDER JOHN A	Director	Sell	S	22.00	20,000	440,024	53,308	73.3 K to 53.3 K (-27.28 %)
Nov 08 2010	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Option Exercise	M	15.93	12,938	206,102	0
Nov 08 2010	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Gift	G	21.77	2,000	43,540	65,006	67 K to 65 K (-2.98 %)
Nov 08 2010	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Sell	S	21.74	8,012	174,198	67,006	75 K to 67 K (-10.68 %)
Nov 08 2010	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Sell	S	21.78	12,938	281,823	75,018	88 K to 75 K (-14.71 %)
Nov 08 2010	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Buy	M	15.93	12,938	206,102	87,956	75 K to 88 K (+17.25 %)
Nov 08 2010	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Option Exercise	M	19.50	9,380	182,910	0
Nov 08 2010	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Sell	S	21.15	9,380	198,387	19,486	28.9 K to 19.5 K (-32.49 %)
Nov 08 2010	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Buy	M	19.50	9,380	182,910	28,866	19.5 K to 28.9 K (+48.14 %)
Nov 01 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Option Exercise	M	14.25	2,000	28,500	11,920
Nov 01 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Buy	M	14.25	2,000	28,500	23,200	21.2 K to 23.2 K (+9.43 %)
Oct 04 2010	GNTX	GENTEX CORP	Newton Mark W	VP Purchasing & Adv ...	Option Exercise	A	19.53	15,360	299,904	15,360
Aug 13 2010	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Option Exercise	A	18.23	119,700	2,182,131	119,700
Aug 11 2010	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Option Exercise	M	16.71	180,000	3,007,800	0

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