GENTEX CORP

Ticker: GNTX CUSIP: 371901109 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2025

Shares 8,620 Value ($000) $201 Avg Close $24.11 Range $21.69 - $28.37

Q3 2025

Shares 8,620 Value ($000) $244 Avg Close $26.57 Range $21.81 - $29.38

Q2 2025

Shares 8,620 Value ($000) $190 Avg Close $21.86 Range $20.28 - $23.86

Q1 2025

Shares 8,620 Value ($000) $201 Avg Close $25.57 Range $22.87 - $28.88

Q4 2024

Shares 8,620 Value ($000) $248 Avg Close $29.93 Range $28.38 - $31.48

Q3 2024

Shares 8,620 Value ($000) $256 Avg Close $31.06 Range $28.30 - $35.32

Q2 2024

Shares 100,420 Value ($000) $3,385 Avg Close $34.53 Range $33.23 - $36.46

Q1 2024

Shares 106,280 Value ($000) $3,839 Avg Close $34.59 Range $30.76 - $37.58

Q4 2023

Shares 119,130 Value ($000) $3,891 Avg Close $30.89 Range $27.86 - $33.03

Q3 2023

Shares 119,280 Value ($000) $3,881 Avg Close $32.06 Range $28.59 - $34.33

Q2 2023

Shares 8,620 Value ($000) $252 Avg Close $27.56 Range $25.85 - $29.49

Q1 2023

Shares 8,620 Value ($000) $242 Avg Close $28.18 Range $25.77 - $30.41

Q4 2022

Shares 8,620 Value ($000) $235 Avg Close $26.68 Range $23.28 - $29.63

Q3 2022

Shares 8,620 Value ($000) $206 Avg Close $27.45 Range $23.70 - $29.69

Q2 2022

Shares 8,620 Value ($000) $241 Avg Close $29.10 Range $26.16 - $31.48

Q1 2022

Shares 8,620 Value ($000) $251 Avg Close $31.10 Range $27.41 - $36.65

Q4 2021

Shares 8,620 Value ($000) $300 Avg Close $35.48 Range $32.68 - $37.90

Q3 2021

Shares 8,620 Value ($000) $284 Avg Close $32.29 Range $30.40 - $34.43

Q2 2021

Shares 8,620 Value ($000) $285 Avg Close $34.68 Range $31.66 - $36.65

Q1 2021

Shares 8,620 Value ($000) $307 Avg Close $35.52 Range $32.00 - $37.75

Q4 2020

Shares 283,973 Value ($000) $9,635 Avg Close $30.84 Range $25.62 - $34.30

Q3 2020

Shares 331,838 Value ($000) $8,545 Avg Close $26.57 Range $24.70 - $28.34

Q2 2020

Shares 8,620 Value ($000) $222 Avg Close $25.06 Range $20.39 - $28.14

Q1 2020

Shares 8,620 Value ($000) $191 Avg Close $27.77 Range $19.48 - $31.27

Q4 2019

Shares 8,620 Value ($000) $250 Avg Close $28.16 Range $25.50 - $29.74

Q3 2019

Shares 8,620 Value ($000) $237 Avg Close $26.43 Range $23.21 - $28.43

Q2 2019

Shares 98,960 Value ($000) $2,435 Avg Close $22.65 Range $20.61 - $25.00

Q1 2019

Shares 105,300 Value ($000) $2,178 Avg Close $20.90 Range $19.55 - $23.15

Q4 2018

Shares 105,300 Value ($000) $2,128 Avg Close $20.95 Range $17.80 - $23.05

Q3 2018

Shares 105,300 Value ($000) $2,260 Avg Close $23.14 Range $21.11 - $24.94

Q2 2018

Shares 105,300 Value ($000) $2,424 Avg Close $23.73 Range $21.82 - $25.41

Q1 2018

Shares 105,300 Value ($000) $2,424 Avg Close $22.76 Range $20.78 - $24.07

Q4 2017

Shares 105,300 Value ($000) $2,206 Avg Close $19.89 Range $18.51 - $21.16

Q3 2017

Shares 105,300 Value ($000) $2,085 Avg Close $18.18 Range $16.59 - $19.98

Q2 2017

Shares 105,300 Value ($000) $1,998 Avg Close $19.49 Range $18.06 - $21.49

Q1 2017

Shares 114,500 Value ($000) $2,442 Avg Close $20.99 Range $19.76 - $22.12

Q4 2016

Shares 114,500 Value ($000) $2,255 Avg Close $18.20 Range $16.06 - $20.39

Q3 2016

Shares 114,500 Value ($000) $2,011 Avg Close $17.28 Range $14.66 - $18.30

Q2 2016

Shares 114,500 Value ($000) $1,769 Avg Close $15.89 Range $14.69 - $16.60

Q1 2016

Shares 114,500 Value ($000) $1,797 Avg Close $14.56 Range $12.93 - $15.90

Q4 2015

Shares 114,500 Value ($000) $1,833 Avg Close $16.16 Range $15.29 - $16.91

Q3 2015

Shares 129,420 Value ($000) $2,006 Avg Close $15.89 Range $13.84 - $16.80

Q2 2015

Shares 129,420 Value ($000) $2,125 Avg Close $17.48 Range $16.34 - $18.55

Q1 2015

Shares 129,420 Value ($000) $2,368 Avg Close $17.65 Range $15.83 - $18.80

Q4 2014

Shares 64,710 Value ($000) $2,338 Avg Close $16.61 Range $13.16 - $19.06

Q3 2014

Shares 66,060 Value ($000) $2,083 Avg Close $14.54 Range $13.33 - $15.15

Q2 2014

Shares 66,060 Value ($000) $1,922 Avg Close $14.60 Range $13.90 - $15.88

Q1 2014

Shares 66,060 Value ($000) $2,083 Avg Close $15.95 Range $14.79 - $17.20

Q4 2013

Shares 66,060 Value ($000) $2,179 Avg Close $14.65 Range $12.31 - $17.07

Q3 2013

Shares 64,710 Value ($000) $1,732 Avg Close $11.86 Range $10.64 - $13.13

Q2 2013

Shares 76,360 Value ($000) $1,760 Avg Close $11.27 Range $9.51 - $12.70

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	8,620	$201	$24.11	$21.69 - $28.37
Q3 2025	8,620	$244	$26.57	$21.81 - $29.38
Q2 2025	8,620	$190	$21.86	$20.28 - $23.86
Q1 2025	8,620	$201	$25.57	$22.87 - $28.88
Q4 2024	8,620	$248	$29.93	$28.38 - $31.48
Q3 2024	8,620	$256	$31.06	$28.30 - $35.32
Q2 2024	100,420	$3,385	$34.53	$33.23 - $36.46
Q1 2024	106,280	$3,839	$34.59	$30.76 - $37.58
Q4 2023	119,130	$3,891	$30.89	$27.86 - $33.03
Q3 2023	119,280	$3,881	$32.06	$28.59 - $34.33
Q2 2023	8,620	$252	$27.56	$25.85 - $29.49
Q1 2023	8,620	$242	$28.18	$25.77 - $30.41
Q4 2022	8,620	$235	$26.68	$23.28 - $29.63
Q3 2022	8,620	$206	$27.45	$23.70 - $29.69
Q2 2022	8,620	$241	$29.10	$26.16 - $31.48
Q1 2022	8,620	$251	$31.10	$27.41 - $36.65
Q4 2021	8,620	$300	$35.48	$32.68 - $37.90
Q3 2021	8,620	$284	$32.29	$30.40 - $34.43
Q2 2021	8,620	$285	$34.68	$31.66 - $36.65
Q1 2021	8,620	$307	$35.52	$32.00 - $37.75
Q4 2020	283,973	$9,635	$30.84	$25.62 - $34.30
Q3 2020	331,838	$8,545	$26.57	$24.70 - $28.34
Q2 2020	8,620	$222	$25.06	$20.39 - $28.14
Q1 2020	8,620	$191	$27.77	$19.48 - $31.27
Q4 2019	8,620	$250	$28.16	$25.50 - $29.74
Q3 2019	8,620	$237	$26.43	$23.21 - $28.43
Q2 2019	98,960	$2,435	$22.65	$20.61 - $25.00
Q1 2019	105,300	$2,178	$20.90	$19.55 - $23.15
Q4 2018	105,300	$2,128	$20.95	$17.80 - $23.05
Q3 2018	105,300	$2,260	$23.14	$21.11 - $24.94
Q2 2018	105,300	$2,424	$23.73	$21.82 - $25.41
Q1 2018	105,300	$2,424	$22.76	$20.78 - $24.07
Q4 2017	105,300	$2,206	$19.89	$18.51 - $21.16
Q3 2017	105,300	$2,085	$18.18	$16.59 - $19.98
Q2 2017	105,300	$1,998	$19.49	$18.06 - $21.49
Q1 2017	114,500	$2,442	$20.99	$19.76 - $22.12
Q4 2016	114,500	$2,255	$18.20	$16.06 - $20.39
Q3 2016	114,500	$2,011	$17.28	$14.66 - $18.30
Q2 2016	114,500	$1,769	$15.89	$14.69 - $16.60
Q1 2016	114,500	$1,797	$14.56	$12.93 - $15.90
Q4 2015	114,500	$1,833	$16.16	$15.29 - $16.91
Q3 2015	129,420	$2,006	$15.89	$13.84 - $16.80
Q2 2015	129,420	$2,125	$17.48	$16.34 - $18.55
Q1 2015	129,420	$2,368	$17.65	$15.83 - $18.80
Q4 2014	64,710	$2,338	$16.61	$13.16 - $19.06
Q3 2014	66,060	$2,083	$14.54	$13.33 - $15.15
Q2 2014	66,060	$1,922	$14.60	$13.90 - $15.88
Q1 2014	66,060	$2,083	$15.95	$14.79 - $17.20
Q4 2013	66,060	$2,179	$14.65	$12.31 - $17.07
Q3 2013	64,710	$1,732	$11.86	$10.64 - $13.13
Q2 2013	76,360	$1,760	$11.27	$9.51 - $12.70