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Trex Company, Inc. (TREX) institutional ownership

Latest close $42.38 Jul 23, 2026
Market cap$4.9B 52-week range SectorIndustrials
Funds holding · Q1 2026
409
reported TREX position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Net bought $63M
212 buyers · 197 sellers

Trex Company, Inc. (TREX) price and institutional activity

Dates

Q1 2026

$671M bought by 212 investors
Westwood Holdings Group Inc$70MFuller & Thaler Asset Management, Inc.$59M +210 more
$608M sold by 197 investors
Norges-$72MD. E. Shaw & Co., Inc.-$35M +195 more
Bought Sold Totals per quarter; hover a bar for the names.

Trex Company, Inc. (TREX) institutional activity · 409

Investor Type Est. change Change Δ Own Date
Norges · Exited −$72M
Change −1.8M Δ Own −100.0% Date Q1 2026
Norges Exited· Q1 2026 −$72M −1.8M −100.0% Q1 2026
Westwood Holdings Group Inc · New +$70M
Change +1.7M Date Q1 2026
Westwood Holdings Group Inc New· Q1 2026 +$70M +1.7M Q1 2026
Fuller & Thaler Asset Management, Inc. · New +$59M
Change +1.5M Date Q1 2026
Fuller & Thaler Asset Management, Inc. New· Q1 2026 +$59M +1.5M Q1 2026
Wellington Management Group LLP · Added +$46M
Change +1.1M Δ Own +15.7% Date Q1 2026
Wellington Management Group LLP Added· Q1 2026 +$46M +1.1M +15.7% Q1 2026
Marshall Wace, LLP · Added +$44M
Change +1.1M Date Q1 2026
Marshall Wace, LLP Added· Q1 2026 +$44M +1.1M Q1 2026
Arrowstreet Capital, Limited Partnership · Added +$42M
Change +1.0M Date Q1 2026
Arrowstreet Capital, Limited Partnership Added· Q1 2026 +$42M +1.0M Q1 2026
D. E. Shaw & Co., Inc. · Reduced −$35M
Change −872K Δ Own −49.4% Date Q1 2026
D. E. Shaw & Co., Inc. Reduced· Q1 2026 −$35M −872K −49.4% Q1 2026
Principal Financial Group Inc · Reduced −$35M
Change −859K Date Q1 2026
Principal Financial Group Inc Reduced· Q1 2026 −$35M −859K Q1 2026
Millennium Management LLC · Reduced −$29M
Change −710K Date Q1 2026
Millennium Management LLC Reduced· Q1 2026 −$29M −710K Q1 2026
William Blair Investment Management, LLC · New +$26M
Change +647K Date Q1 2026
William Blair Investment Management, LLC New· Q1 2026 +$26M +647K Q1 2026
Jane Street Group, LLC · Reduced −$24M
Change −587K Date Q1 2026
Jane Street Group, LLC Reduced· Q1 2026 −$24M −587K Q1 2026
Two Sigma Advisers, LP · Exited −$23M
Change −574K Δ Own −100.0% Date Q1 2026
Two Sigma Advisers, LP Exited· Q1 2026 −$23M −574K −100.0% Q1 2026
Balyasny Asset Management L.P. · Added +$23M
Change +562K Date Q1 2026
Balyasny Asset Management L.P. Added· Q1 2026 +$23M +562K Q1 2026
Citadel Advisors LLC Reduced· Q1 2026 −$23M −560K −29.5% Q1 2026
Two Sigma Investments, LP · Added +$20M
Change +486K Δ Own +49.7% Date Q1 2026
Two Sigma Investments, LP Added· Q1 2026 +$20M +486K +49.7% Q1 2026
Data through Q1 2026 · filed Jun 3, 2026
15 of 409

Famous investor activity in Trex Company, Inc. (TREX)

Trex Company, Inc. (TREX) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Rose B. Andrew · Director Grant (A) $26K
Price $48.69 Qty 526 Owned 15K ΔOwn +3.5% Trade date Jul 1, 2026 Filed date Jul 6, 2026
Rose B. Andrew Director Grant (A) $48.69 526 $26K 15K +3.5% Jul 1, 2026 Jul 6, 2026
Keffer David Christian · Director Grant (A) $6K
Price $48.69 Qty 131 Owned 4K ΔOwn +3.8% Trade date Jul 1, 2026 Filed date Jul 6, 2026
Keffer David Christian Director Grant (A) $48.69 131 $6K 4K +3.8% Jul 1, 2026 Jul 6, 2026
Rudolph Jacob T. · Officer Sell −$70K
Price $50.00 Qty −1K Owned 37K ΔOwn −3.7% Trade date Jun 25, 2026 Filed date Jun 26, 2026
Rudolph Jacob T. Officer Sell $50.00 −1K −$70K 37K −3.7% Jun 25, 2026 Jun 26, 2026
Keffer David Christian · Director Grant (A) $6K
Price $36.57 Qty 175 Owned 3K Trade date Apr 1, 2026 Filed date Apr 3, 2026
Keffer David Christian Director Grant (A) $36.57 175 $6K 3K Apr 1, 2026 Apr 3, 2026
Rose B. Andrew · Director Grant (A) $26K
Price $36.57 Qty 700 Owned 15K Trade date Apr 1, 2026 Filed date Apr 3, 2026
Rose B. Andrew Director Grant (A) $36.57 700 $26K 15K Apr 1, 2026 Apr 3, 2026
Rose B. Andrew · Director 2 operations +$489K
Price $40.14–$40.74 Qty +12K Owned 14K Trade date Mar 3, 2026 Filed date Mar 3, 2026
Rose B. Andrew Director 2 operations $40.14–$40.74 +12K +$489K 14K Mar 3, 2026 Mar 3, 2026
Rose B. Andrew · Director Buy +$15K
Price $40.26 Qty +372 Owned 2K Trade date Mar 2, 2026 Filed date Mar 3, 2026
Rose B. Andrew Director Buy $40.26 +372 +$15K 2K Mar 2, 2026 Mar 3, 2026
Fernandez Amy M. · Officer Other Form 4 events -$45K
Price $41.42 Qty -1K Owned 73K Trade date Mar 1, 2026 Filed date Mar 3, 2026
Fernandez Amy M. Officer Other Form 4 events $41.42 -1K -$45K 73K Mar 1, 2026 Mar 3, 2026
Fernandez Amy M. · Officer Tax withholding or exercise payment (F) -$186K
Price $41.42 Qty -4K Owned 69K Trade date Mar 1, 2026 Filed date Mar 3, 2026
Fernandez Amy M. Officer Tax withholding or exercise payment (F) $41.42 -4K -$186K 69K Mar 1, 2026 Mar 3, 2026
Fernandez Amy M. · Officer Grant (A) $79K
Price $41.42 Qty 2K Owned 74K Trade date Mar 1, 2026 Filed date Mar 3, 2026
Fernandez Amy M. Officer Grant (A) $41.42 2K $79K 74K Mar 1, 2026 Mar 3, 2026
Rudolph Jacob T. · Officer Other Form 4 events -$27K
Price $41.42 Qty -663 Owned 41K Trade date Mar 1, 2026 Filed date Mar 3, 2026
Rudolph Jacob T. Officer Other Form 4 events $41.42 -663 -$27K 41K Mar 1, 2026 Mar 3, 2026
Rudolph Jacob T. · Officer Tax withholding or exercise payment (F) -$118K
Price $41.42 Qty -3K Owned 38K Trade date Mar 1, 2026 Filed date Mar 3, 2026
Rudolph Jacob T. Officer Tax withholding or exercise payment (F) $41.42 -3K -$118K 38K Mar 1, 2026 Mar 3, 2026
Rudolph Jacob T. · Officer Grant (A) $52K
Price $41.42 Qty 1K Owned 42K Trade date Mar 1, 2026 Filed date Mar 3, 2026
Rudolph Jacob T. Officer Grant (A) $41.42 1K $52K 42K Mar 1, 2026 Mar 3, 2026
Fairbanks Bryan Horix · Officer Other Form 4 events -$235K
Price $41.42 Qty -6K Owned 190K Trade date Mar 1, 2026 Filed date Mar 3, 2026
Fairbanks Bryan Horix Officer Other Form 4 events $41.42 -6K -$235K 190K Mar 1, 2026 Mar 3, 2026
Fairbanks Bryan Horix · Officer Tax withholding or exercise payment (F) -$958K
Price $41.42 Qty -23K Owned 167K Trade date Mar 1, 2026 Filed date Mar 3, 2026
Fairbanks Bryan Horix Officer Tax withholding or exercise payment (F) $41.42 -23K -$958K 167K Mar 1, 2026 Mar 3, 2026
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Trex Company, Inc. (TREX) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
BlackRock Inc. 13.9M
% of shares outstanding 12.8% Filing date Jan 23, 2024
BlackRock Inc. 13.9M 12.8% Jan 23, 2024
Vanguard Group Inc 10.2M
% of shares outstanding 9.4% Filing date Feb 13, 2024
Vanguard Group Inc 10.2M 9.4% Feb 13, 2024
Wellington Management Group LLP 8.4M
% of shares outstanding 8.0% Filing date May 15, 2026
Wellington Management Group LLP 8.4M 8.0% May 15, 2026
Vanguard Capital Management 5.6M
% of shares outstanding 5.4% Filing date Apr 30, 2026
Vanguard Capital Management 5.6M 5.4% Apr 30, 2026
Wasatch Advisors LP
% of shares outstanding 3.7% Filing date Feb 9, 2024
Wasatch Advisors LP 3.7% Feb 9, 2024
Alliancebernstein L.P. 3.0M
% of shares outstanding 2.8% Filing date Feb 14, 2023
Alliancebernstein L.P. 3.0M 2.8% Feb 14, 2023
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Trex Company, Inc. (TREX) ownership FAQ

Who owns TREX?

409 reporting institutions disclosed TREX position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.