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5%+ stakes · Schedule 13D and 13G

Trex Co Inc: 5%+ holders

Who has reported owning 5% or more of Trex Co Inc, from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

At 5% or more3
Filings11
Latest filing2026-09-04

Trex Co Inc has 11 Schedule 13D or 13G filings on record since 2025-08-14. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
Wellington Management Group LLP9.5%9,877,124SCHEDULE 13G/A, 2026-08-132026-06-30
Millennium Management LLC5.5%5,570,532SCHEDULE 13G, 2026-08-072026-07-31
Vanguard Capital Management5.36%5,568,825SCHEDULE 13G, 2026-04-302026-03-31
Wasatch Advisors LP4.8%5,185,652SCHEDULE 13G/A, 2025-08-142025-06-30
T. Rowe Price Associates, Inc.0.7%740,731SCHEDULE 13G/A, 2025-11-142025-09-30
AllianceBernstein L.P.0.2%202,483SCHEDULE 13G/A, 2026-09-042026-08-31
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13

Timeline

FiledHolderPercentFiling
2025-08-14Wasatch Advisors LP4.8%SCHEDULE 13G/A
2025-11-14T. Rowe Price Associates, Inc.0.7%SCHEDULE 13G/A
2026-02-10Wellington Management Group LLP6.7%SCHEDULE 13G
2026-02-17AllianceBernstein L.P.6.1%SCHEDULE 13G/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-04-30Vanguard Capital Management5.36%SCHEDULE 13G
2026-05-15Wellington Management Group LLP8%SCHEDULE 13G/A
2026-08-06Wellington Management Group LLP10.4%SCHEDULE 13G/A
2026-08-07Millennium Management LLC5.5%SCHEDULE 13G
2026-08-13Wellington Management Group LLP9.5%SCHEDULE 13G/A
2026-09-04AllianceBernstein L.P.0.2%SCHEDULE 13G/A

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

Cite this page

Permanent URL: https://mentionfox.com/stakes/trex-co
Last updated 2026-09-27
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Trex Co Inc 5%+ holders: 3 at 5% or more, largest Wellington Management Group LLP 9.5%. MentionFox, 2026-09-27. https://mentionfox.com/stakes/trex-co