TREX

Trex Company Inc$45.81 5.02%
MaterialsUSCUSIP 89531P105· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
319
-1 QoQ
13F Value (tracked)
$3.5B
Insider Net · 180d
$434K
1↑ 1↓
Recent Filings
15
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)31 adding · 23 trimming
Insider net (180d)+$434K

Price & smart-money activity

$45.81 5.02%5Y -52.1%
$21.30$53.31$85.31$117.31$149.322021202220232024202520265823
Hover for who · click for detailEnd-of-day closing prices52w $30.13 – $68.49
Build

Ask your agent what changed in TREX

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/TREX/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for TREX.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

Top institutional holders

319 tracked 13F filers
2 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$377.4M
10.4M
−0.6%
Reduced · −65K sh
Q1 2026
2ALLIANCEBERNSTEIN L.P.
$225.6M
6.4M
−1.1%
Reduced · −73K sh
Q1 2026
3VANGUARD CAPITAL MANAGEMENT LLC
$172.9M
4.7M
New
+4.7M sh
Q1 2026
4VANGUARD PORTFOLIO MANAGEMENT LLC
$163.3M
4.5M
New
+4.5M sh
Q1 2026
5AQR CAPITAL MANAGEMENT LLC
$152.7M
4.2M
+9.0%
Added · +351K sh
Q1 2026
6WASATCH ADVISORS LP
$188.0M
3.8M
+6.2%
Added · +220K sh
Q2 2026
7STATE STREET CORP
$118.4M
3.3M
+2.8%
Added · +87K sh
Q1 2026
8MORGAN STANLEY
$77.9M
2.1M
−7.5%
Reduced · −173K sh
Q1 2026
9Clearbridge Investments, LLC
$77.3M
2.1M
−2.4%
Reduced · −52K sh
Q1 2026
10BANK OF AMERICA CORP /DE/
$73.6M
2.0M
+31%
Added · +476K sh
Q1 2026
11GEODE CAPITAL MANAGEMENT, LLC
$72.0M
2.0M
+3.3%
Added · +62K sh
Q1 2026
12NORGES BANK
$62.9M
1.8M
+78%
Added · +786K sh
Q4 2025
13Impax Asset Management Group plc
$64.3M
1.8M
−1.0%
Reduced · −17K sh
Q1 2026
14WESTWOOD HOLDINGS GROUP INC
$63.7M
1.7M
New
+1.7M sh
Q1 2026
15DIMENSIONAL FUND ADVISORS LP
$61.9M
1.7M
−4.8%
Reduced · −86K sh
Q1 2026
16AMERICAN CENTURY COMPANIES INC
$61.0M
1.7M
+22%
Added · +304K sh
Q1 2026
17FEDERATED HERMES, INC.
$54.1M
1.5M
−1.5%
Reduced · −23K sh
Q1 2026
18FULLER & THALER ASSET MANAGEMENT, INC.
$53.7M
1.5M
New
+1.5M sh
Q1 2026
19TWO SIGMA INVESTMENTS, LP
$53.3M
1.5M
+50%
Added · +486K sh
Q1 2026
20Point72 Asset Management, L.P.
$49.8M
1.4M
−18%
Reduced · −295K sh
Q1 2026
21CITADEL ADVISORS LLC
$48.8M
1.3M
−29%
Reduced · −560K sh
Q1 2026
22JACOBS LEVY EQUITY MANAGEMENT, INC
$46.2M
1.3M
−4.3%
Reduced · −57K sh
Q1 2026
23Freestone Grove Partners LP
$45.3M
1.2M
−19%
Reduced · −294K sh
Q1 2026
24MARSHALL WACE, LLP
$45.0M
1.2M
+793%
Added · +1.1M sh
Q1 2026
25ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
$44.9M
1.2M
+567%
Added · +1.0M sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
7
funds
Added
24
funds
Reduced
23
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$504K
1 insiders
Sells · 180d
$70K
1 insiders
Net
$434K
4 P/S txns
Signal
Net Buying
open-market
DateInsiderRoleActionSharesValue
Jul 1, 2026ROSE B ANDREWDirectorGrant (A)526$26K
Jul 1, 2026Keffer David ChristianDirectorGrant (A)131$6K
Jun 25, 2026Rudolph Jacob T.SVP, CHROSell (S)1K$70K
Apr 1, 2026Keffer David ChristianDirectorGrant (A)175$6K
Apr 1, 2026ROSE B ANDREWDirectorGrant (A)700$26K
Mar 3, 2026ROSE B ANDREWDirectorBuy (P)986$40K
Mar 3, 2026ROSE B ANDREWDirectorBuy (P)11K$449K
Mar 2, 2026ROSE B ANDREWDirectorBuy (P)372$15K
Mar 1, 2026Zambanini Adam DanteEVP, Chief Operating OfficerGrant (A)4K$150K
Mar 1, 2026Zambanini Adam DanteEVP, Chief Operating OfficerOther (J)2K$80K
Mar 1, 2026Zambanini Adam DanteEVP, Chief Operating OfficerTax withholding (F)8K$343K
Mar 1, 2026FAIRBANKS BRYAN HORIXPresident and CEOTax withholding (F)23K$958K

Institutional ownership over time

310 funds+4 since Q3 2024
0158315Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $3.4B · 1 values withheld

Funds that own TREX also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT151 funds$68.5B
AMAZON.COM INCAMZN149 funds$52.9B
NVIDIA CORPNVDA147 funds$96.4B
APPLE INCAAPL146 funds$80.1B
ALPHABET INC-CL AGOOGL145 funds$45.0B
BROADCOM INCAVGO145 funds$35.9B
ELI LILLY & COLLY145 funds$17.1B
COSTCO WHOLESALE CORPCOST145 funds$11.1B
META PLATFORMS INC-CLASS AMETA143 funds$30.5B
VISA INC-CLASS A SHARESV143 funds$15.0B
MASTERCARD INC - AMA143 funds$12.4B
ALPHABET INC-CL CGOOG142 funds$29.9B

Ranked by how many of TREX's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

15 shown

Browse more

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for TREX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.