Ticker · held by 4 filers

TREX

TREX CO INC

All tracked filers currently holding TREX, ranked by position size. Each row links through to the filer's full portfolio.

Total value held

$1.13B

Total shares

16,523,233

Filers holding

4 · 6 positions

Caveat

long only · 13F-eligible managers only

Filers holding TREX

sorted by position size · click any filer to see their full portfolio

# Filer Class Shares Value (USD) % of port

1 BlackRock · Larry Fink COM 14,082,410 $1.04B 0.02%

2 Citadel Advisors · Ken Griffin COM 1,901,418 $66.7M 0.01%

3 Renaissance Technologies · Jim Simons (founder) COM 277,500 $9.7M 0.02%

4 Bridgewater Associates · Ray Dalio (founder) COM 140,305 $4.9M 0.02%

5 Citadel Advisors · Ken Griffin PUTCOM 98,300 $3.4M 0.00%

6 Citadel Advisors · Ken Griffin CALLCOM 23,300 $817.4K 0.00%

What this is

This page reverses the usual 13F view: instead of "what does Buffett hold," it answers "who holds NVDA?" Across the dozen tracked filers, all current 13F-disclosed holders of TREX are listed, with the position size and what fraction of each filer's overall portfolio it represents.

Caveats: only the filers tracked here are included (~12 names) — not the whole 13F universe (~6,000 filers). Position values are at the most recent quarter-end, not current market price. Only long positions are visible; shorts and synthetics aren't.

v0.2 · 2026 · data via SEC EDGAR · CUSIP→ticker via OpenFIGI