WINCHESTER, VA
TREX CO INCTREX— Latest position per institution from SEC 13F filings
15
Institutional holders
97.78M
Total shares held
4.71B
Estimated value
4.89M
Avg. position size
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
14.08M
Value
1.04B
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
10.49M
Value
525.08M
Filed
Jun 30, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
9.88M
Value
494.25M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
9.82M
Value
344.50M
Filed
Dec 31, 2025
ALLIANCEBERNSTEIN L.P.
CIK 1109448
Shares
6.04M
Value
219.95M
Filed
Jun 30, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
5.99M
Value
119.68K
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
4.70M
Value
235.24M
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
4.44M
Value
222.42M
Filed
Jun 30, 2026
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
3.77M
Value
188.85M
Filed
Jun 30, 2026
WASATCH ADVISORS LP
CIK 814133
Shares
3.76M
Value
188.01M
Filed
Jun 30, 2026
AQR CAPITAL MANAGEMENT LLC
CIK 1167557
Shares
3.63M
Value
181.01M
Filed
Jun 30, 2026
AMERICAN CENTURY COMPANIES INC
CIK 748054
Shares
3.31M
Value
165.55M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
3.25M
Value
162.50M
Filed
Jun 30, 2026
ANOMALY CAPITAL MANAGEMENT, LP
CIK 1817534
Shares
2.31M
Value
119.24M
Filed
Sep 30, 2025
CITADEL ADVISORS LLC
CIK 1423053
Shares
2.30M
Value
115.30M
Filed
Jun 30, 2026
CLEARBRIDGE INVESTMENTS, LLC
CIK 1348883
Shares
2.17M
Value
108.53M
Filed
Jun 30, 2026
MORGAN STANLEY
CIK 895421
Shares
2.11M
Value
105.76M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.93M
Value
96.51M
Filed
Jun 30, 2026
BANK OF AMERICA CORP /DE/
CIK 70858
Shares
1.90M
Value
94.85M
Filed
Jun 30, 2026
CONESTOGA CAPITAL ADVISORS, LLC
CIK 1163744
Shares
1.89M
Value
97.91M
Filed
Sep 30, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK FINANCE, INC. | 1364742 | 14.08M | 1.04B | Jun 30, 2024 |
| 2 | BLACKROCK, INC. | 2012383 | 10.49M | 525.08M | Jun 30, 2026 |
| 3 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 9.88M | 494.25M | Jun 30, 2026 |
| 4 | VANGUARD GROUP INC | 102909 | 9.82M | 344.50M | Dec 31, 2025 |
| 5 | ALLIANCEBERNSTEIN L.P. | 1109448 | 6.04M | 219.95M | Jun 30, 2026 |
| 6 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 5.99M | 119.68K | Jun 30, 2026 |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 4.70M | 235.24M | Jun 30, 2026 |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 4.44M | 222.42M | Jun 30, 2026 |
| 9 | MILLENNIUM MANAGEMENT LLC | 1273087 | 3.77M | 188.85M | Jun 30, 2026 |
| 10 | WASATCH ADVISORS LP | 814133 | 3.76M | 188.01M | Jun 30, 2026 |
| 11 | AQR CAPITAL MANAGEMENT LLC | 1167557 | 3.63M | 181.01M | Jun 30, 2026 |
| 12 | AMERICAN CENTURY COMPANIES INC | 748054 | 3.31M | 165.55M | Jun 30, 2026 |
| 13 | STATE STREET CORP | 93751 | 3.25M | 162.50M | Jun 30, 2026 |
| 14 | ANOMALY CAPITAL MANAGEMENT, LP | 1817534 | 2.31M | 119.24M | Sep 30, 2025 |
| 15 | CITADEL ADVISORS LLC | 1423053 | 2.30M | 115.30M | Jun 30, 2026 |
| 16 | CLEARBRIDGE INVESTMENTS, LLC | 1348883 | 2.17M | 108.53M | Jun 30, 2026 |
| 17 | MORGAN STANLEY | 895421 | 2.11M | 105.76M | Jun 30, 2026 |
| 18 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.93M | 96.51M | Jun 30, 2026 |
| 19 | BANK OF AMERICA CORP /DE/ | 70858 | 1.90M | 94.85M | Jun 30, 2026 |
| 20 | CONESTOGA CAPITAL ADVISORS, LLC | 1163744 | 1.89M | 97.91M | Sep 30, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.