Security key
89531P105
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 6,594,731
- Total 13F value
- $286,871,943
- Share change
- +772,586
- SEC-reported price per share
- $43.56
- Number of holders
- 118
- Value change
- +$33,128,251
- Number of buys
- 53
- Number of sells
- 43
- Shares outstanding
- 103,969,726
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
118
Top holders
10
TREX full security history
Ownership snapshot
Full 13F holder table
TREX CO INC SEC filings
TREX CO INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 89531P105
Recent filing periods:
Ownership snapshot
Top reported holders of TREX - TREX CO INC - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
WELLINGTON MANAGEMENT GRO...
Disclosed value leader
BlackRock, Inc.
Comparable rows
7/15
Latest evidence
31 Jul 2026
13D/G
13F
Lead comparable stake: 10%
8 rows are not safely comparable across share classes.
13D/G row: WELLINGTON MANAGEMENT GROUP LLP
Showing 1-6 of 15 holder rows.
Quick read
WELLINGTON MANAGEMENT GROUP LLP leads the comparable SEC ownership view at 10%.
7 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens WELLINGTON MANAGEMENT GROUP LLP's linked filing trail.
Comparable ownership
Top 5
WELLINGTON MANAGEMENT GROUP LLP
10%
BlackRock, Inc.
9.8%
MILLENNIUM MANAGEMENT LLC
5.5%
VANGUARD CAPITAL MANAGEMENT LLC
5.4%
WASATCH ADVISORS LP
4.8%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP |
13D/G
13F
Company
|
10%
Reported 13D/G
· 31 Jul 2026
|
$497,387,851
10,558,010 shares
|
+$103,605,443 | 31 Jul 2026 |
| BlackRock, Inc. |
13D/G
13F
Company
|
9.8%
Reported 13D/G
· 31 Mar 2025
|
$606,759,651
10,513,943 shares
|
$0 | 31 Mar 2025 |
| MILLENNIUM MANAGEMENT LLC |
13D/G
13F
Company
|
5.5%
Reported 13D/G
· 31 Jul 2026
|
$262,427,763
5,570,532 shares
|
$0 | 31 Jul 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Capital Management
|
5.4%
Reported 13D/G
· 31 Mar 2026
|
$235,241,993
4,701,079 shares
|
— | 30 Jun 2026 |
| WASATCH ADVISORS LP |
13D/G
13F
Company
|
4.8%
Reported 13D/G
· 30 Jun 2025
|
$312,487,390
5,185,652 shares
|
-$24,328,408 | 30 Jun 2025 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13D/G
T. Rowe Price Associates, Inc.
|
0.7%
Reported 13D/G
· 30 Sep 2025
|
$38,273,571
740,731 shares
|
-$338,982,223 | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
118
Shares
6,594,731
Rows available
118
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2026 vs Q2 2026 Across Filers
Q2 2026 holders
472
Q3 2026 holders
118
Holder diff
-354
| Investor | Q2 2026 Shares | Q3 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q3 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend