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TREX in the 13F filings

Trex Co Inc · CUSIP 89531P105

Sector · Materials
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
29
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 9 listed it in both
Shares listed
33,127,244
combined, among listed positions
Reported value
$1.2bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 14 buyers (opened or added shares) and 20 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +119,404.

Managers listing TREX in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

29 of 29 holders

ActionFiling
Wellington Management Group LLP8,358,778$304m0.06%Added+1,133,38515 May 2026 (the filing on sec.gov)
AllianceBernstein LP6,430,978$226m0.07%Trimmed-72,50015 May 2026 (the filing on sec.gov)
AQR Capital Management LLC4,246,384$153m0.07%Added+350,85015 May 2026 (the filing on sec.gov)
Two Sigma Investments LP1,462,425$53munder 0.1%Added+485,81315 May 2026 (the filing on sec.gov)
Point72 Asset Management LP1,367,429$50m0.06%Trimmed-294,91315 May 2026 (the filing on sec.gov)
Citadel Advisors LLC1,341,239$49munder 0.1%Trimmed-560,17915 May 2026 (the filing on sec.gov)
Freestone Grove Partners LP1,243,615$45m0.32%Trimmed-294,32315 May 2026 (the filing on sec.gov)
Marshall Wace LLP1,235,056$45munder 0.1%Added+1,096,79915 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP1,232,064$45munder 0.1%Added+1,047,32814 May 2026 (the filing on sec.gov)
Woodline Partners LP975,958$36m0.13%Added+355,47015 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.892,699$33munder 0.1%Trimmed-872,36115 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)820,359$30munder 0.1%Trimmed-464,50815 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC776,254$28munder 0.1%Added+561,90115 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC510,580$19munder 0.1%Trimmed-248,64815 May 2026 (the filing on sec.gov)
Millennium Management LLC497,084$18munder 0.1%Trimmed-710,46115 May 2026 (the filing on sec.gov)
Man Group PLC289,374$11munder 0.1%Added+131,46615 May 2026 (the filing on sec.gov)
Invesco Ltd278,690$10munder 0.1%Trimmed-8,57512 May 2026 (the filing on sec.gov)
Jane Street Group LLC270,446$9.8munder 0.1%Trimmed-587,48112 May 2026 (the filing on sec.gov)
Walleye Capital LLC255,714$9.3munder 0.1%Newnew13 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC169,300$6.2munder 0.1%Trimmed-108,20014 May 2026 (the filing on sec.gov)
GAMCO Investors Inc145,965$5.3m0.05%Added+1,47514 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc103,963$3.8munder 0.1%Added+8,51215 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC64,290$2.3munder 0.1%Added+20,53927 Oct 2026 (the filing on sec.gov)
Susquehanna International Group LLP46,990$1.7munder 0.1%Trimmed-66,41115 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd46,527$1.7munder 0.1%Held018 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (2)

Exited (6)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
14 in Q3 2024 to 11 in Q2 2026

Tracked managers listing it, at least.

01020302014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
TREX by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20132$6.0mn.a.n.a.
Q1 20141$1.8mn.a.n.a.
Q2 20142$13mn.a.n.a.
Q3 20141$26mn.a.n.a.
Q4 20141$983kn.a.n.a.
Q1 20151$24mn.a.n.a.
Q3 20151$45mn.a.n.a.
Q4 20151$1.5mn.a.n.a.
Q1 20161$6.9mn.a.n.a.
Q2 20161$2.1mn.a.n.a.
Q3 20161$2.8mn.a.n.a.
Q4 20162$2.9mn.a.n.a.
Q1 20172$3.4mn.a.n.a.
Q2 20172$79mn.a.n.a.
Q3 20172$78mn.a.n.a.
Q4 20175$86mn.a.n.a.
Q1 20183$5.8mn.a.n.a.
Q2 20183$10mn.a.n.a.
Q3 20184$27mn.a.n.a.
Q4 20185$9.6mn.a.n.a.
Q1 20195$29mn.a.n.a.
Q2 20199$134mn.a.n.a.
Q3 20197$195mn.a.n.a.
Q4 20198$283mn.a.n.a.
Q1 20207$237mn.a.n.a.
Q2 202012$824mn.a.n.a.
Q3 20208$633mn.a.n.a.
Q4 20209$939mn.a.n.a.
Q1 20218$861mn.a.n.a.
Q2 20217$1.1bnn.a.n.a.
Q3 20218$1.5bnn.a.n.a.
Q4 202113$2.2bnn.a.n.a.
Q1 202211$1.3bnn.a.n.a.
Q2 20226$1.0bnn.a.n.a.
Q3 202213$813mn.a.n.a.
Q4 202211$406mn.a.n.a.
Q1 202312$542mn.a.n.a.
Q2 202316$826mn.a.n.a.
Q3 202321$838mn.a.n.a.
Q4 202318$1.1bn108
Q1 202419$1.2bn810
Q2 202415$988m105
Q3 202414$796m103
Q4 202410$1.4bn64
Q1 202514$1.3bn85
Q2 202511$1.1bn66
Q3 20258$702m64
Q4 202511$820m279
Q1 202612$928m1420
Q2 202611$1.4bn1515

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

TREX and LIN →TREX and GLW →TREX and HWM →Choose a stock to compare with TREX →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own TREX, latest filings →Back to the 13F Explorer →