William Blair & Company
TREX icon

William Blair & Company’s Trex TREX Stock Holding History

William Blair & Company’s Portfolio TREX Stock Details TREX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2.14M Sell
42,785
-4,769
-10% -$198K 0.01% 742
2026
Q1 		$1.73M Sell
47,554
-83,661
-64% -$3.37M 0.01% 777
2025
Q4 		$4.6M Sell
131,215
-341,931
-72% -$13.8M 0.01% 541
2025
Q3 		$24.4M Sell
473,146
-94,053
-17% -$5.73M 0.07% 210
2025
Q2 		$30.8M Sell
567,199
-113,517
-17% -$6.43M 0.09% 180
2025
Q1 		$39.5M Buy
680,716
+48,024
+8% +$3.12M 0.12% 159
2024
Q4 		$43.7M Sell
632,692
-132,533
-17% -$9.34M 0.13% 147
2024
Q3 		$50.9M Sell
765,225
-378,901
-33% -$26.6M 0.15% 123
2024
Q2 		$84.8M Buy
1,144,126
+6,901
+0.6% +$604K 0.26% 88
2024
Q1 		$113M Buy
1,137,225
+184,631
+19% +$16.4M 0.36% 70
2023
Q4 		$78.9M Buy
952,594
+119,622
+14% +$7.93M 0.27% 90
2023
Q3 		$51.3M Buy
832,972
+5,823
+0.7% +$400K 0.2% 113
2023
Q2 		$54.2M Buy
827,149
+172,412
+26% +$9.62M 0.2% 111
2023
Q1 		$31.9M Buy
654,737
+31,146
+5% +$1.58M 0.13% 149
2022
Q4 		$26.4M Sell
623,591
-238,840
-28% -$10.8M 0.11% 162
2022
Q3 		$37.9M Sell
862,431
-741,796
-46% -$39.7M 0.17% 127
2022
Q2 		$87.3M Sell
1,604,227
-14,952
-0.9% -$902K 0.39% 60
2022
Q1 		$106M Buy
1,619,179
+73,897
+5% +$6.58M 0.37% 65
2021
Q4 		$209M Buy
1,545,282
+159,729
+12% +$19.2M 0.65% 37
2021
Q3 		$141M Buy
1,385,553
+144,666
+12% +$15.1M 0.48% 43
2021
Q2 		$127M Buy
1,240,887
+287,484
+30% +$29M 0.44% 49
2021
Q1 		$87.3M Buy
953,403
+8,098
+0.9% +$762K 0.33% 69
2020
Q4 		$79.1M Buy
945,305
+18,671
+2% +$1.43M 0.29% 79
2020
Q3 		$66.3M Buy
926,634
+262,322
+39% +$18.1M 0.28% 79
2020
Q2 		$43.2M Buy
664,312
+53,528
+9% +$2.85M 0.21% 112
2020
Q1 		$24.5M Buy
610,784
+51,746
+9% +$2.43M 0.15% 136
2019
Q4 		$25.1M Buy
559,038
+179,482
+47% +$7.9M 0.13% 165
2019
Q3 		$17.3M Buy
+379,556
New +$15.3M 0.1% 191

Other funds holding TREX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

William Blair & Company's TREX Position: Q2 2026 in Review

William Blair & Company reduced its Trex (TREX) stake by 10% in Q2 2026, selling an estimated $198K and leaving 42,785 shares worth $2.14M. The position accounts for 0.01% of the portfolio, ranked #742.

William Blair & Company first reported a position in TREX in Q3 2019 and has held it in 28 quarters since. The position peaked at $209M in Q4 2021. 471 funds tracked by Wall St. Rank hold TREX as of Q2 2026.

  • William Blair & Company held 42,785 shares of Trex worth $2.14M as of Q2 2026.
  • William Blair & Company sold 4,769 Trex shares in Q2 2026, an estimated $198K.
  • Trex made up 0.01% of William Blair & Company's portfolio in Q2 2026, its #742 holding.
  • William Blair & Company first reported a position in Trex in Q3 2019 and has held it in 28 quarters since.
  • William Blair & Company's Trex position peaked at $209M in Q4 2021.
  • 471 funds tracked by Wall St. Rank held Trex as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.