TREX CO INC

Ticker: TREX CUSIP: 89531P105 Class: Common Stock

DISCIPLINED GROWTH INVESTORS INC /MN's Holding History (CIK: 0001050442)

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

Q4 2025

Shares 1,007,236 Value ($000) $35,334 Avg Close $40.45 Range $29.77 - $54.30

Q3 2025

Shares 1,035,607 Value ($000) $53,510 Avg Close $60.90 Range $49.55 - $68.78

Q2 2025

Shares 1,088,031 Value ($000) $59,167 Avg Close $56.68 Range $49.01 - $63.17

Q1 2025

Shares 1,094,363 Value ($000) $63,582 Avg Close $64.97 Range $52.75 - $75.55

Q4 2024

Shares 379,237 Value ($000) $26,179 Avg Close $70.47 Range $61.97 - $80.74

Q3 2024

Shares 413,301 Value ($000) $27,518 Avg Close $70.19 Range $58.68 - $86.56

Q2 2024

Shares 411,580 Value ($000) $30,506 Avg Close $87.49 Range $73.40 - $99.86

Q1 2024

Shares 415,939 Value ($000) $41,490 Avg Close $89.05 Range $75.79 - $101.91

Q4 2023

Shares 410,003 Value ($000) $33,944 Avg Close $66.33 Range $53.59 - $84.68

Q3 2023

Shares 425,580 Value ($000) $26,228 Avg Close $68.61 Range $61.00 - $76.05

Q2 2023

Shares 430,055 Value ($000) $28,194 Avg Close $55.79 Range $46.84 - $66.20

Q1 2023

Shares 436,993 Value ($000) $21,268 Avg Close $50.58 Range $42.68 - $59.84

Q4 2022

Shares 438,617 Value ($000) $18,567 Avg Close $45.39 Range $38.68 - $52.08

Q3 2022

Shares 438,360 Value ($000) $19,262 Avg Close $53.50 Range $42.81 - $66.65

Q2 2022

Shares 438,066 Value ($000) $23,840 Avg Close $60.33 Range $49.31 - $69.21

Q1 2022

Shares 436,814 Value ($000) $28,537 Avg Close $89.05 Range $65.25 - $136.78

Q4 2021

Shares 436,682 Value ($000) $58,965 Avg Close $120.04 Range $90.59 - $140.98

Q3 2021

Shares 445,597 Value ($000) $45,420 Avg Close $104.56 Range $91.56 - $114.61

Q2 2021

Shares 620,684 Value ($000) $63,440 Avg Close $100.96 Range $92.35 - $111.04

Q1 2021

Shares 569,217 Value ($000) $52,106 Avg Close $94.04 Range $81.71 - $107.64

Q4 2020

Shares 644,002 Value ($000) $53,916 Avg Close $76.52 Range $64.26 - $87.88

Q3 2020

Shares 678,826 Value ($000) $48,604 Avg Close $69.18 Range $60.91 - $78.31

Q2 2020

Shares 342,204 Value ($000) $44,510 Avg Close $53.33 Range $33.21 - $66.42

Q1 2020

Shares 545,791 Value ($000) $43,740 Avg Close $46.86 Range $28.11 - $55.92

Q4 2019

Shares 654,668 Value ($000) $58,842 Avg Close $44.04 Range $41.00 - $46.81

Q3 2019

Shares 663,312 Value ($000) $60,315 Avg Close $40.33 Range $33.84 - $45.79

Q2 2019

Shares 665,082 Value ($000) $47,686 Avg Close $33.89 Range $28.77 - $38.77

Q1 2019

Shares 664,161 Value ($000) $40,859 Avg Close $34.94 Range $28.86 - $39.69

Q4 2018

Shares 662,448 Value ($000) $39,323 Avg Close $31.30 Range $25.44 - $38.75

Q3 2018

Shares 716,764 Value ($000) $55,176 Avg Close $38.47 Range $30.75 - $45.37

Q2 2018

Shares 733,892 Value ($000) $45,934 Avg Close $28.98 Range $25.52 - $33.38

Q1 2018

Shares 368,112 Value ($000) $40,040 Avg Close $27.54 Range $25.36 - $30.10

Q4 2017

Shares 369,839 Value ($000) $40,087 Avg Close $25.45 Range $20.91 - $29.66

Q3 2017

Shares 375,117 Value ($000) $33,787 Avg Close $19.06 Range $16.75 - $22.52

Q2 2017

Shares 394,242 Value ($000) $26,674 Avg Close $16.88 Range $15.39 - $19.12

Q1 2017

Shares 394,559 Value ($000) $27,378 Avg Close $17.24 Range $16.05 - $19.54

Q4 2016

Shares 400,409 Value ($000) $25,786 Avg Close $15.62 Range $12.70 - $18.05

Q3 2016

Shares 369,292 Value ($000) $21,685 Avg Close $13.94 Range $11.10 - $16.09

Q2 2016

Shares 375,017 Value ($000) $16,846 Avg Close $11.28 Range $9.94 - $12.65

Q1 2016

Shares 379,292 Value ($000) $18,179 Avg Close $9.74 Range $7.78 - $12.04

Q4 2015

Shares 378,967 Value ($000) $14,416 Avg Close $10.02 Range $8.43 - $11.04

Q3 2015

Shares 381,367 Value ($000) $12,711 Avg Close $10.27 Range $7.93 - $12.54

Q2 2015

Shares 375,017 Value ($000) $18,537 Avg Close $12.82 Range $11.68 - $14.43

Q1 2015

Shares 371,267 Value ($000) $20,245 Avg Close $11.54 Range $9.51 - $13.78

Q4 2014

Shares 373,942 Value ($000) $15,922 Avg Close $9.96 Range $7.77 - $11.21

Q3 2014

Shares 391,742 Value ($000) $13,543 Avg Close $8.38 Range $6.29 - $9.87

Q2 2014

Shares 394,417 Value ($000) $11,367 Avg Close $8.47 Range $7.07 - $10.13

Q1 2014

Shares 225,021 Value ($000) $16,463 Avg Close $8.95 Range $7.76 - $10.86

Q4 2013

Shares 229,696 Value ($000) $18,268 Avg Close $8.18 Range $5.78 - $10.38

Q3 2013

Shares 239,200 Value ($000) $11,848 Avg Close $5.82 Range $5.16 - $6.51

Q2 2013

Shares 233,125 Value ($000) $11,071 Avg Close $6.43 Range $5.66 - $7.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,007,236	$35,334	$40.45	$29.77 - $54.30
Q3 2025	1,035,607	$53,510	$60.90	$49.55 - $68.78
Q2 2025	1,088,031	$59,167	$56.68	$49.01 - $63.17
Q1 2025	1,094,363	$63,582	$64.97	$52.75 - $75.55
Q4 2024	379,237	$26,179	$70.47	$61.97 - $80.74
Q3 2024	413,301	$27,518	$70.19	$58.68 - $86.56
Q2 2024	411,580	$30,506	$87.49	$73.40 - $99.86
Q1 2024	415,939	$41,490	$89.05	$75.79 - $101.91
Q4 2023	410,003	$33,944	$66.33	$53.59 - $84.68
Q3 2023	425,580	$26,228	$68.61	$61.00 - $76.05
Q2 2023	430,055	$28,194	$55.79	$46.84 - $66.20
Q1 2023	436,993	$21,268	$50.58	$42.68 - $59.84
Q4 2022	438,617	$18,567	$45.39	$38.68 - $52.08
Q3 2022	438,360	$19,262	$53.50	$42.81 - $66.65
Q2 2022	438,066	$23,840	$60.33	$49.31 - $69.21
Q1 2022	436,814	$28,537	$89.05	$65.25 - $136.78
Q4 2021	436,682	$58,965	$120.04	$90.59 - $140.98
Q3 2021	445,597	$45,420	$104.56	$91.56 - $114.61
Q2 2021	620,684	$63,440	$100.96	$92.35 - $111.04
Q1 2021	569,217	$52,106	$94.04	$81.71 - $107.64
Q4 2020	644,002	$53,916	$76.52	$64.26 - $87.88
Q3 2020	678,826	$48,604	$69.18	$60.91 - $78.31
Q2 2020	342,204	$44,510	$53.33	$33.21 - $66.42
Q1 2020	545,791	$43,740	$46.86	$28.11 - $55.92
Q4 2019	654,668	$58,842	$44.04	$41.00 - $46.81
Q3 2019	663,312	$60,315	$40.33	$33.84 - $45.79
Q2 2019	665,082	$47,686	$33.89	$28.77 - $38.77
Q1 2019	664,161	$40,859	$34.94	$28.86 - $39.69
Q4 2018	662,448	$39,323	$31.30	$25.44 - $38.75
Q3 2018	716,764	$55,176	$38.47	$30.75 - $45.37
Q2 2018	733,892	$45,934	$28.98	$25.52 - $33.38
Q1 2018	368,112	$40,040	$27.54	$25.36 - $30.10
Q4 2017	369,839	$40,087	$25.45	$20.91 - $29.66
Q3 2017	375,117	$33,787	$19.06	$16.75 - $22.52
Q2 2017	394,242	$26,674	$16.88	$15.39 - $19.12
Q1 2017	394,559	$27,378	$17.24	$16.05 - $19.54
Q4 2016	400,409	$25,786	$15.62	$12.70 - $18.05
Q3 2016	369,292	$21,685	$13.94	$11.10 - $16.09
Q2 2016	375,017	$16,846	$11.28	$9.94 - $12.65
Q1 2016	379,292	$18,179	$9.74	$7.78 - $12.04
Q4 2015	378,967	$14,416	$10.02	$8.43 - $11.04
Q3 2015	381,367	$12,711	$10.27	$7.93 - $12.54
Q2 2015	375,017	$18,537	$12.82	$11.68 - $14.43
Q1 2015	371,267	$20,245	$11.54	$9.51 - $13.78
Q4 2014	373,942	$15,922	$9.96	$7.77 - $11.21
Q3 2014	391,742	$13,543	$8.38	$6.29 - $9.87
Q2 2014	394,417	$11,367	$8.47	$7.07 - $10.13
Q1 2014	225,021	$16,463	$8.95	$7.76 - $10.86
Q4 2013	229,696	$18,268	$8.18	$5.78 - $10.38
Q3 2013	239,200	$11,848	$5.82	$5.16 - $6.51
Q2 2013	233,125	$11,071	$6.43	$5.66 - $7.25