TREX CO INC

Ticker: TREX CUSIP: 89531P105 Class: Common Stock

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2025

Shares 131,215 Value ($000) $4,603 Avg Close $40.45 Range $29.77 - $54.30

Q3 2025

Shares 473,146 Value ($000) $24,447 Avg Close $60.90 Range $49.55 - $68.78

Q2 2025

Shares 567,199 Value ($000) $30,844 Avg Close $56.68 Range $49.01 - $63.17

Q1 2025

Shares 680,716 Value ($000) $39,550 Avg Close $64.97 Range $52.75 - $75.55

Q4 2024

Shares 632,692 Value ($000) $43,675 Avg Close $70.47 Range $61.97 - $80.74

Q3 2024

Shares 765,225 Value ($000) $50,949 Avg Close $70.19 Range $58.68 - $86.56

Q2 2024

Shares 1,144,126 Value ($000) $84,803 Avg Close $87.49 Range $73.40 - $99.86

Q1 2024

Shares 1,137,225 Value ($000) $113,438 Avg Close $89.05 Range $75.79 - $101.91

Q4 2023

Shares 952,594 Value ($000) $78,865 Avg Close $66.33 Range $53.59 - $84.68

Q3 2023

Shares 832,972 Value ($000) $51,336 Avg Close $68.61 Range $61.00 - $76.05

Q2 2023

Shares 827,149 Value ($000) $54,228 Avg Close $55.79 Range $46.84 - $66.20

Q1 2023

Shares 654,737 Value ($000) $31,866 Avg Close $50.58 Range $42.68 - $59.84

Q4 2022

Shares 623,591 Value ($000) $26,397 Avg Close $45.39 Range $38.68 - $52.08

Q3 2022

Shares 862,431 Value ($000) $37,895 Avg Close $53.50 Range $42.81 - $66.65

Q2 2022

Shares 1,604,227 Value ($000) $87,302 Avg Close $60.33 Range $49.31 - $69.21

Q1 2022

Shares 1,619,179 Value ($000) $105,781 Avg Close $89.05 Range $65.25 - $136.78

Q4 2021

Shares 1,545,282 Value ($000) $208,659 Avg Close $120.04 Range $90.59 - $140.98

Q3 2021

Shares 1,385,553 Value ($000) $141,229 Avg Close $104.56 Range $91.56 - $114.61

Q2 2021

Shares 1,240,887 Value ($000) $126,831 Avg Close $100.96 Range $92.35 - $111.04

Q1 2021

Shares 953,403 Value ($000) $87,275 Avg Close $94.04 Range $81.71 - $107.64

Q4 2020

Shares 945,305 Value ($000) $79,141 Avg Close $76.52 Range $64.26 - $87.88

Q3 2020

Shares 926,634 Value ($000) $66,347 Avg Close $69.18 Range $60.91 - $78.31

Q2 2020

Shares 332,156 Value ($000) $43,204 Avg Close $53.33 Range $33.21 - $66.42

Q1 2020

Shares 305,392 Value ($000) $24,474 Avg Close $46.86 Range $28.11 - $55.92

Q4 2019

Shares 279,519 Value ($000) $25,123 Avg Close $44.04 Range $41.00 - $46.81

Q3 2019

Shares 189,778 Value ($000) $17,257 Avg Close $40.33 Range $33.84 - $45.79

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	131,215	$4,603	$40.45	$29.77 - $54.30
Q3 2025	473,146	$24,447	$60.90	$49.55 - $68.78
Q2 2025	567,199	$30,844	$56.68	$49.01 - $63.17
Q1 2025	680,716	$39,550	$64.97	$52.75 - $75.55
Q4 2024	632,692	$43,675	$70.47	$61.97 - $80.74
Q3 2024	765,225	$50,949	$70.19	$58.68 - $86.56
Q2 2024	1,144,126	$84,803	$87.49	$73.40 - $99.86
Q1 2024	1,137,225	$113,438	$89.05	$75.79 - $101.91
Q4 2023	952,594	$78,865	$66.33	$53.59 - $84.68
Q3 2023	832,972	$51,336	$68.61	$61.00 - $76.05
Q2 2023	827,149	$54,228	$55.79	$46.84 - $66.20
Q1 2023	654,737	$31,866	$50.58	$42.68 - $59.84
Q4 2022	623,591	$26,397	$45.39	$38.68 - $52.08
Q3 2022	862,431	$37,895	$53.50	$42.81 - $66.65
Q2 2022	1,604,227	$87,302	$60.33	$49.31 - $69.21
Q1 2022	1,619,179	$105,781	$89.05	$65.25 - $136.78
Q4 2021	1,545,282	$208,659	$120.04	$90.59 - $140.98
Q3 2021	1,385,553	$141,229	$104.56	$91.56 - $114.61
Q2 2021	1,240,887	$126,831	$100.96	$92.35 - $111.04
Q1 2021	953,403	$87,275	$94.04	$81.71 - $107.64
Q4 2020	945,305	$79,141	$76.52	$64.26 - $87.88
Q3 2020	926,634	$66,347	$69.18	$60.91 - $78.31
Q2 2020	332,156	$43,204	$53.33	$33.21 - $66.42
Q1 2020	305,392	$24,474	$46.86	$28.11 - $55.92
Q4 2019	279,519	$25,123	$44.04	$41.00 - $46.81
Q3 2019	189,778	$17,257	$40.33	$33.84 - $45.79