TREX CO INC

Ticker: TREX CUSIP: 89531P105 Class: Common Stock

SIT INVESTMENT ASSOCIATES INC's Holding History (CIK: 0000769317)

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

Q4 2025

Shares 65,520 Value ($000) $2 Avg Close $40.45 Range $29.77 - $54.30

Q3 2025

Shares 79,320 Value ($000) $4 Avg Close $60.90 Range $49.55 - $68.78

Q2 2025

Shares 78,635 Value ($000) $4 Avg Close $56.68 Range $49.01 - $63.17

Q1 2025

Shares 79,855 Value ($000) $5 Avg Close $64.97 Range $52.75 - $75.55

Q4 2024

Shares 79,495 Value ($000) $5 Avg Close $70.47 Range $61.97 - $80.74

Q3 2024

Shares 79,495 Value ($000) $5 Avg Close $70.19 Range $58.68 - $86.56

Q2 2024

Shares 78,670 Value ($000) $6 Avg Close $87.49 Range $73.40 - $99.86

Q1 2024

Shares 63,710 Value ($000) $6 Avg Close $89.05 Range $75.79 - $101.91

Q4 2023

Shares 63,710 Value ($000) $5 Avg Close $66.33 Range $53.59 - $84.68

Q3 2023

Shares 63,710 Value ($000) $4 Avg Close $68.61 Range $61.00 - $76.05

Q2 2023

Shares 63,710 Value ($000) $4 Avg Close $55.79 Range $46.84 - $66.20

Q1 2023

Shares 63,710 Value ($000) $3 Avg Close $50.58 Range $42.68 - $59.84

Q4 2022

Shares 63,710 Value ($000) $3 Avg Close $45.39 Range $38.68 - $52.08

Q3 2022

Shares 63,200 Value ($000) $2,777 Avg Close $53.50 Range $42.81 - $66.65

Q2 2022

Shares 63,200 Value ($000) $3,439 Avg Close $60.33 Range $49.31 - $69.21

Q1 2022

Shares 63,200 Value ($000) $4,129 Avg Close $89.05 Range $65.25 - $136.78

Q4 2021

Shares 63,200 Value ($000) $8,534 Avg Close $120.04 Range $90.59 - $140.98

Q3 2021

Shares 85,550 Value ($000) $8,720 Avg Close $104.56 Range $91.56 - $114.61

Q2 2021

Shares 88,750 Value ($000) $9,071 Avg Close $100.96 Range $92.35 - $111.04

Q1 2021

Shares 88,975 Value ($000) $8,145 Avg Close $94.04 Range $81.71 - $107.64

Q4 2020

Shares 88,975 Value ($000) $7,449 Avg Close $76.52 Range $64.26 - $87.88

Q3 2020

Shares 88,975 Value ($000) $6,371 Avg Close $69.18 Range $60.91 - $78.31

Q2 2020

Shares 46,850 Value ($000) $6,094 Avg Close $53.33 Range $33.21 - $66.42

Q1 2020

Shares 46,850 Value ($000) $3,755 Avg Close $46.86 Range $28.11 - $55.92

Q4 2019

Shares 46,850 Value ($000) $4,211 Avg Close $44.04 Range $41.00 - $46.81

Q3 2019

Shares 46,850 Value ($000) $4,260 Avg Close $40.33 Range $33.84 - $45.79

Q2 2019

Shares 46,850 Value ($000) $3,359 Avg Close $33.89 Range $28.77 - $38.77

Q1 2019

Shares 10,725 Value ($000) $660 Avg Close $34.94 Range $28.86 - $39.69

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	65,520	$2	$40.45	$29.77 - $54.30
Q3 2025	79,320	$4	$60.90	$49.55 - $68.78
Q2 2025	78,635	$4	$56.68	$49.01 - $63.17
Q1 2025	79,855	$5	$64.97	$52.75 - $75.55
Q4 2024	79,495	$5	$70.47	$61.97 - $80.74
Q3 2024	79,495	$5	$70.19	$58.68 - $86.56
Q2 2024	78,670	$6	$87.49	$73.40 - $99.86
Q1 2024	63,710	$6	$89.05	$75.79 - $101.91
Q4 2023	63,710	$5	$66.33	$53.59 - $84.68
Q3 2023	63,710	$4	$68.61	$61.00 - $76.05
Q2 2023	63,710	$4	$55.79	$46.84 - $66.20
Q1 2023	63,710	$3	$50.58	$42.68 - $59.84
Q4 2022	63,710	$3	$45.39	$38.68 - $52.08
Q3 2022	63,200	$2,777	$53.50	$42.81 - $66.65
Q2 2022	63,200	$3,439	$60.33	$49.31 - $69.21
Q1 2022	63,200	$4,129	$89.05	$65.25 - $136.78
Q4 2021	63,200	$8,534	$120.04	$90.59 - $140.98
Q3 2021	85,550	$8,720	$104.56	$91.56 - $114.61
Q2 2021	88,750	$9,071	$100.96	$92.35 - $111.04
Q1 2021	88,975	$8,145	$94.04	$81.71 - $107.64
Q4 2020	88,975	$7,449	$76.52	$64.26 - $87.88
Q3 2020	88,975	$6,371	$69.18	$60.91 - $78.31
Q2 2020	46,850	$6,094	$53.33	$33.21 - $66.42
Q1 2020	46,850	$3,755	$46.86	$28.11 - $55.92
Q4 2019	46,850	$4,211	$44.04	$41.00 - $46.81
Q3 2019	46,850	$4,260	$40.33	$33.84 - $45.79
Q2 2019	46,850	$3,359	$33.89	$28.77 - $38.77
Q1 2019	10,725	$660	$34.94	$28.86 - $39.69