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TREX · Trex Co Inc

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Market Cap
$4.65B
Shares
101.87M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 470
Total Value: $5,619,729,673
Total Shares: 112,304,824
Showing 1–100 of 484 holdings by value · page 1 of 5

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 470 13F filers · Δ vs Mar 31, 2026
Top Holder
9.3%
Sep 2023 → Jun 2026 · range 9.2% – 13.7%
−0.3 pts
Top 5
31.7%
Sep 2023 → Jun 2026 · range 31.7% – 38.5%
−0.4 pts
Top 10
47.4%
Sep 2023 → Jun 2026 · range 43.0% – 50.0%
+1.1 pts
HHI
324
Sep 2023 → Jun 2026 · range 310 – 420
Broadly held+6

Quarterly Activity

vs Mar 31, 2026
New
102
Increased
142
Decreased
150
Sold Out
60
Unchanged
76
Holder count: +42
Institutional value: +43.9%
Shares held: +4.7%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 484
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1069878 CUSIP 89531P105 13F (30d) 264 filings 262 filers Visit website