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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
Jul 26 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Option Exercise	M	15.33	6,176	94,647	6,176
Jul 26 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Sell	S	21.00	9,750	204,750	32,730	42.5 K to 32.7 K (-22.95 %)
Jul 26 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Buy	M	14.00	3,574	50,036	42,480	38.9 K to 42.5 K (+9.19 %)
Jul 26 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Buy	M	15.33	6,176	94,647	38,906	32.7 K to 38.9 K (+18.87 %)
Jul 26 2007	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Sell	S	21.34	3,875	82,693	50,500	54.4 K to 50.5 K (-7.13 %)
Jul 02 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Option Exercise	M	13.74	5,880	80,762	0
Jul 02 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Sell	S	19.52	5,880	114,772	32,730	38.6 K to 32.7 K (-15.23 %)
Jul 02 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Buy	M	13.74	5,880	80,762	38,610	32.7 K to 38.6 K (+17.97 %)
Jun 21 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Option Exercise	M	17.13	3,400	58,242	13,600
Jun 21 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Option Exercise	M	17.37	32,380	562,441	0
Jun 21 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Option Exercise	M	17.98	31,120	559,382	0
Jun 21 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Sell	S	19.73	66,900	1,319,991	21,640	88.5 K to 21.6 K (-75.56 %)
Jun 21 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Buy	M	17.13	3,400	58,242	88,540	85.1 K to 88.5 K (+3.99 %)
Jun 21 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Buy	M	17.37	32,380	562,441	85,140	52.8 K to 85.1 K (+61.37 %)
Jun 21 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Buy	M	17.98	31,120	559,382	52,760	21.6 K to 52.8 K (+143.81 %)
Jun 21 2007	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Sell	S	20.10	11,625	233,663	54,375	66 K to 54.4 K (-17.61 %)
Jun 21 2007	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Option Exercise	M	14.75	26,836	395,831	7,964
Jun 21 2007	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Sell	S	20.01	26,836	536,988	92,172	119 K to 92.2 K (-22.55 %)
Jun 21 2007	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Buy	M	14.75	26,836	395,831	119,008	92.2 K to 119 K (+29.12 %)
Jun 21 2007	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Gift	G	17.95	300	5,385	92,172	92.5 K to 92.2 K (-0.32 %)
Jun 21 2007	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Option Exercise	M	16.15	8,090	130,654	0
Jun 21 2007	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Sell	S	20.00	8,090	161,800	13,486	21.6 K to 13.5 K (-37.50 %)
Jun 21 2007	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Buy	M	16.15	8,090	130,654	21,576	13.5 K to 21.6 K (+59.99 %)
May 25 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Option Exercise	M	15.33	18,528	283,942	12,352
May 25 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Sell	S	18.56	18,528	343,880	32,730	51.3 K to 32.7 K (-36.15 %)
May 25 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Buy	M	15.33	18,528	283,942	51,258	32.7 K to 51.3 K (+56.61 %)
May 25 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Option Exercise	M	14.29	23,712	338,726	5,928
May 25 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Sell	S	18.71	23,712	443,604	21,640	45.4 K to 21.6 K (-52.28 %)
May 25 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Buy	M	14.29	23,712	338,726	45,352	21.6 K to 45.4 K (+109.57 %)
May 24 2007	GNTX	GENTEX CORP	MULDER JOHN A	Director	Sell	S	18.29	9,000	164,610	130,308	139.3 K to 130.3 K (-6.46 %)
May 11 2007	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Option Exercise	A	18.41	6,000	110,460	6,000
May 11 2007	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Option Exercise	A	18.41	6,000	110,460	6,000
May 11 2007	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Option Exercise	A	18.41	6,000	110,460	6,000
May 11 2007	GNTX	GENTEX CORP	SOTOK FREDERICK A	Director	Option Exercise	A	18.41	6,000	110,460	6,000
May 11 2007	GNTX	GENTEX CORP	GOODE GARY F	Director	Option Exercise	A	18.41	6,000	110,460	6,000
May 11 2007	GNTX	GENTEX CORP	MULDER JOHN A	Director	Option Exercise	A	18.41	6,000	110,460	6,000
May 11 2007	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Option Exercise	A	18.41	6,000	110,460	6,000
May 11 2007	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Option Exercise	A	18.41	6,000	110,460	6,000
May 11 2007	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Option Exercise	M	4.66	10,000	46,563	0
May 11 2007	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Buy	M	4.66	10,000	46,563	252,000	242 K to 252 K (+4.13 %)
May 11 2007	GNTX	GENTEX CORP	Wallace James H	Director	Option Exercise	A	18.41	6,000	110,460	6,000
May 09 2007	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Sell	S	18.85	3,300	62,205	92,472	95.8 K to 92.5 K (-3.45 %)
May 09 2007	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Sell	S	18.90	11,700	221,130	95,772	107.5 K to 95.8 K (-10.89 %)
May 09 2007	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Gift	G	18.65	6,000	111,900	107,472	113.5 K to 107.5 K (-5.29 %)
May 08 2007	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Option Exercise	M	16.15	8,090	130,654	8,090
May 08 2007	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Gift	G	18.91	200	3,782	13,486	13.7 K to 13.5 K (-1.46 %)
May 08 2007	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Sell	S	18.75	8,090	151,704	13,686	21.8 K to 13.7 K (-37.15 %)
May 08 2007	GNTX	GENTEX CORP	Dykman Steven A	VP Finance & Treasu ...	Buy	M	16.15	8,090	130,654	21,776	13.7 K to 21.8 K (+59.11 %)
May 07 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Option Exercise	M	11.80	5,540	65,344	0
May 07 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Sell	S	18.25	5,540	101,105	21,640	27.2 K to 21.6 K (-20.38 %)
May 07 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Buy	M	11.80	5,540	65,344	27,180	21.6 K to 27.2 K (+25.60 %)
May 03 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Sell	S	18.00	10,000	180,000	21,640	31.6 K to 21.6 K (-31.61 %)
May 01 2007	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Option Exercise	M	4.66	10,000	46,563	10,000
May 01 2007	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Buy	M	4.66	10,000	46,563	242,000	232 K to 242 K (+4.31 %)
Apr 27 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Option Exercise	M	13.74	23,520	323,047	5,880
Apr 27 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Option Exercise	M	12.73	28,000	356,440	0
Apr 27 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Sell	S	17.95	51,520	924,681	32,730	84.3 K to 32.7 K (-61.15 %)
Apr 27 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Buy	M	13.74	23,520	323,047	84,250	60.7 K to 84.3 K (+38.73 %)
Apr 27 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Buy	M	12.73	28,000	356,440	60,730	32.7 K to 60.7 K (+85.55 %)
Apr 03 2007	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Option Exercise	A	16.25	26,250	426,563	26,250
Apr 03 2007	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Grant	A	0.00	10,800	0	113,472	102.7 K to 113.5 K (+10.52 %)
Apr 03 2007	GNTX	GENTEX CORP	JEN ENOCH C	Senior Vice Preside ...	Gift	G	17.59	1,000	17,590	102,672	103.7 K to 102.7 K (-0.96 %)
Feb 27 2007	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	17.36	20	347	5,147,496	5.1 M to 5.1 M (0.00 %)
Feb 27 2007	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	17.42	44,033	767,011	5,147,516	5.2 M to 5.1 M (-0.85 %)
Feb 23 2007	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	17.46	700	12,222	5,191,549	5.2 M to 5.2 M (-0.01 %)
Feb 23 2007	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	17.47	45,000	785,939	5,192,249	5.2 M to 5.2 M (-0.86 %)
Feb 16 2007	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	17.46	107,200	1,871,540	5,278,049	5.4 M to 5.3 M (-1.99 %)
Feb 16 2007	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	17.59	5,863	103,122	5,385,249	5.4 M to 5.4 M (-0.11 %)
Feb 20 2007	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	17.46	40,800	712,229	5,237,249	5.3 M to 5.2 M (-0.77 %)
Feb 15 2007	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Sell	S	17.53	27,988	490,565	0	28 K to 0 (-100.00 %)
Feb 12 2007	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	17.79	127,500	2,268,416	5,391,112	5.5 M to 5.4 M (-2.31 %)
Feb 12 2007	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Sell	S	17.67	233,000	4,116,108	5,518,612	5.8 M to 5.5 M (-4.05 %)
Feb 02 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Option Exercise	M	12.91	15,642	201,883	0
Feb 02 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Sell	S	17.16	15,642	268,417	31,640	47.3 K to 31.6 K (-33.08 %)
Feb 02 2007	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Buy	M	12.91	15,642	201,883	47,282	31.6 K to 47.3 K (+49.44 %)
Dec 28 2006	GNTX	GENTEX CORP	MULDER JOHN A	Director	Sell	S	16.05	10,000	160,467	139,308	149.3 K to 139.3 K (-6.70 %)
Dec 28 2006	GNTX	GENTEX CORP	MULDER JOHN A	Director	Gift	G	16.65	500	8,325	149,308	149.8 K to 149.3 K (-0.33 %)
Dec 28 2006	GNTX	GENTEX CORP	MULDER JOHN A	Director	Gift	G	16.57	900	14,913	149,808	150.7 K to 149.8 K (-0.60 %)
Sep 15 2006	GNTX	GENTEX CORP	DEUR GARTH D		Gift	G	14.70	1,000	14,700	3,496	4.5 K to 3.5 K (-22.24 %)
Sep 15 2006	GNTX	GENTEX CORP	DEUR GARTH D		Sell	S	14.90	5,800	86,447	4,496	10.3 K to 4.5 K (-56.33 %)
Sep 22 2006	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Option Exercise	A	14.36	18,020	258,767	18,020
Aug 18 2006	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Option Exercise	M	13.49	7,064	95,258	7,200
Aug 18 2006	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Sell	S	15.28	7,064	107,938	10,296	17.4 K to 10.3 K (-40.69 %)
Aug 18 2006	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Buy	M	13.49	7,064	95,258	17,360	10.3 K to 17.4 K (+68.61 %)
Aug 14 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Option Exercise	D	17.71	6,000	106,260	0
Aug 14 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Option Exercise	D	18.04	12,000	216,420	0
Aug 14 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Option Exercise	D	15.93	12,000	191,100	0
Aug 14 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Option Exercise	D	15.95	12,000	191,340	0
Aug 14 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Option Exercise	D	13.71	10,000	137,050	0
Aug 14 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Option Exercise	D	15.41	10,000	154,065	0
Aug 14 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Option Exercise	D	14.28	10,000	142,815	0
Aug 08 2006	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Option Exercise	M	11.03	130,000	1,434,095	0
Aug 08 2006	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Buy	M	11.03	130,000	1,434,095	5,751,612	5.6 M to 5.8 M (+2.31 %)
Aug 11 2006	GNTX	GENTEX CORP	BAUER FRED	Chairman of the Boa ...	Option Exercise	A	13.52	98,000	1,324,960	98,000
Aug 02 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Option Exercise	M	8.73	20,000	174,688	0
Aug 02 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Option Exercise	M	4.66	20,000	93,126	0
Aug 02 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Sell	S	13.01	40,000	520,532	38,600	78.6 K to 38.6 K (-50.89 %)
Aug 02 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Buy	M	8.73	20,000	174,688	78,600	58.6 K to 78.6 K (+34.13 %)
Aug 02 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Buy	M	4.66	20,000	93,126	58,600	38.6 K to 58.6 K (+51.81 %)
Jul 05 2006	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Option Exercise	A	14.00	17,870	250,180	17,870
Jul 05 2006	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Grant	A	0.00	14,030	0	32,730	18.7 K to 32.7 K (+75.03 %)
Jul 05 2006	GNTX	GENTEX CORP	JEN ENOCH C	Vice President, Fin ...	Option Exercise	A	14.00	25,000	350,000	25,000
Jul 05 2006	GNTX	GENTEX CORP	JEN ENOCH C	Vice President, Fin ...	Gift	G	17.18	200	3,436	106,672	106.9 K to 106.7 K (-0.19 %)
Jul 05 2006	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Grant	A	14.00	1,000	14,000	3,000	2 K to 3 K (+50.00 %)
May 24 2006	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Sell	S	14.91	40,000	596,252	232,000	272 K to 232 K (-14.71 %)
May 12 2006	GNTX	GENTEX CORP	TSUHA WALLACE K JR	Director	Option Exercise	A	14.76	6,000	88,560	6,000
May 12 2006	GNTX	GENTEX CORP	SOTOK FREDERICK A	Director	Option Exercise	A	14.76	6,000	88,560	6,000
May 12 2006	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Option Exercise	A	14.76	6,000	88,560	6,000
May 12 2006	GNTX	GENTEX CORP	MULDER JOHN A	Director	Option Exercise	A	14.76	6,000	88,560	6,000
May 12 2006	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Option Exercise	A	14.76	6,000	88,560	6,000
May 12 2006	GNTX	GENTEX CORP	MORAN J TERRY	Director	Option Exercise	A	14.76	6,000	88,560	6,000
May 12 2006	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Option Exercise	A	14.76	6,000	88,560	6,000
May 10 2006	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Sell	D	0.00	21,600	0	10,296	31.9 K to 10.3 K (-67.72 %)
May 10 2006	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Sell	S	15.24	5,800	88,392	31,896	37.7 K to 31.9 K (-15.39 %)
May 12 2006	GNTX	GENTEX CORP	GOODE GARY F	Director	Option Exercise	A	14.76	6,000	88,560	6,000
May 02 2006	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Option Exercise	M	4.59	40,000	183,752	0
May 02 2006	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Buy	M	4.59	40,000	183,752	272,000	232 K to 272 K (+17.24 %)
Mar 30 2006	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Option Exercise	M	12.56	17,852	224,266	0
Mar 30 2006	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Sell	S	17.23	17,852	307,565	18,700	36.6 K to 18.7 K (-48.84 %)
Mar 30 2006	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Buy	M	12.56	17,852	224,266	36,552	18.7 K to 36.6 K (+95.47 %)
Mar 29 2006	GNTX	GENTEX CORP	WEBER LEO L	Director	Sell	S	17.22	4,000	68,864	38,600	42.6 K to 38.6 K (-9.39 %)
Mar 28 2006	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Option Exercise	M	11.80	11,084	130,736	5,540
Mar 28 2006	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Sell	S	17.42	11,084	193,042	31,640	42.7 K to 31.6 K (-25.94 %)
Mar 28 2006	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Buy	M	11.80	11,084	130,736	42,724	31.6 K to 42.7 K (+35.03 %)
Mar 21 2006	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Option Exercise	M	10.38	24,000	249,000	0
Mar 21 2006	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Sell	S	16.84	24,000	404,160	31,640	55.6 K to 31.6 K (-43.13 %)
Mar 21 2006	GNTX	GENTEX CORP	ALEXEJUN DENNIS E	V.P. Automotive Mar ...	Buy	M	10.38	24,000	249,000	55,640	31.6 K to 55.6 K (+75.85 %)
Mar 16 2006	GNTX	GENTEX CORP	LANTING ARLYN J	Director	Sell	S	16.93	40,000	677,132	232,000	272 K to 232 K (-14.71 %)
Mar 15 2006	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Gift	G	16.91	7,148	120,873	27,988	20.8 K to 28 K (+34.30 %)
Mar 15 2006	GNTX	GENTEX CORP	CARTER JOHN W	V.P. Engineering	Gift	G	16.91	7,148	120,873	18,700	25.8 K to 18.7 K (-27.65 %)
Mar 09 2006	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Gift	G	16.42	1,000	16,420	37,696	38.7 K to 37.7 K (-2.58 %)
Mar 08 2006	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Option Exercise	M	13.49	3,496	47,144	14,264
Mar 08 2006	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Option Exercise	M	9.47	6,800	64,389	0
Mar 08 2006	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Payment of Exercise	F	16.40	6,800	111,520	38,696	45.5 K to 38.7 K (-14.95 %)
Mar 08 2006	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Buy	M	13.49	3,496	47,144	45,496	42 K to 45.5 K (+8.32 %)
Mar 08 2006	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Buy	M	9.47	6,800	64,389	42,000	35.2 K to 42 K (+19.32 %)
Feb 24 2006	GNTX	GENTEX CORP	SOMMA RANDE S	Director	Grant	A	20.30	13	264	3,013	3 K to 3 K (+0.43 %)
Dec 28 2005	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Option Exercise	M	16.15	44,000	710,600	0
Dec 28 2005	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Option Exercise	M	13.49	11,040	148,874	17,760
Dec 28 2005	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Option Exercise	A	19.50	26,000	507,000	26,000
Dec 28 2005	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Sell	S	19.59	73,040	1,431,000	35,200	108.2 K to 35.2 K (-67.48 %)
Dec 28 2005	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Buy	M	16.15	44,000	710,600	108,240	64.2 K to 108.2 K (+68.49 %)
Dec 28 2005	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Buy	M	13.49	11,040	148,874	64,240	53.2 K to 64.2 K (+20.75 %)
Dec 20 2005	GNTX	GENTEX CORP	DEUR GARTH D	Executive Vice Pres ...	Gift	G	18.99	1,000	18,985	53,200	54.2 K to 53.2 K (-1.85 %)
Dec 20 2005	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Gift	G	19.27	1,155	22,251	369,575	370.7 K to 369.6 K (-0.31 %)
Dec 20 2005	GNTX	GENTEX CORP	LA GRAND KENNETH L	Director	Gift	G	18.99	9,240	175,421	370,730	380 K to 370.7 K (-2.43 %)
Dec 19 2005	GNTX	GENTEX CORP	JEN ENOCH C	Vice President, Fin ...	Option Exercise	M	12.50	26,398	329,975	6,602
Dec 19 2005	GNTX	GENTEX CORP	JEN ENOCH C	Vice President, Fin ...	Gift	G	18.04	1,360	24,534	106,872	108.2 K to 106.9 K (-1.26 %)
Dec 19 2005	GNTX	GENTEX CORP	JEN ENOCH C	Vice President, Fin ...	Gift	G	19.25	4,000	77,000	108,232	112.2 K to 108.2 K (-3.56 %)
Dec 19 2005	GNTX	GENTEX CORP	JEN ENOCH C	Vice President, Fin ...	Sell	M	19.04	26,398	502,618	112,232	138.6 K to 112.2 K (-19.04 %)

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