Marshall Wace
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Marshall Wace’s Builders FirstSource BLDR Stock Holding History

Marshall Wace’s Portfolio BLDR Stock Details BLDR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$63.9M Buy
776,133
+620,264
+398% +$66.2M 0.06% 282
2025
Q4 		$16M Buy
155,869
+123,219
+377% +$13.8M 0.01% 708
2025
Q3 		$3.96M Buy
+32,650
New +$4.33M ﹤0.01% 1283
2025
Q2 		– Sell
-152,599
Closed -$19.1M – 2719
2025
Q1 		$19.1M Sell
152,599
-32,721
-18% -$4.76M 0.02% 531
2024
Q4 		$26.5M Sell
185,320
-281,008
-60% -$49.7M 0.03% 455
2024
Q3 		$90.4M Buy
+466,328
New +$77.3M 0.11% 161
2023
Q4 		– Sell
-36,043
Closed -$4.49M – 2194
2023
Q3 		$4.49M Buy
+36,043
New +$4.97M 0.01% 910
2023
Q1 		– Sell
-30,092
Closed -$1.95M – 2669
2022
Q4 		$1.95M Buy
30,092
+16,656
+124% +$1.04M ﹤0.01% 1755
2022
Q3 		$792K Sell
13,436
-1,622
-11% -$101K ﹤0.01% 2520
2022
Q2 		$809K Sell
15,058
-1,231,768
-99% -$75.5M ﹤0.01% 2557
2022
Q1 		$80.5M Buy
1,246,826
+857,196
+220% +$62.2M 0.15% 139
2021
Q4 		$33.4M Buy
+389,630
New +$26.4M 0.06% 316
2021
Q3 		– Sell
-273,080
Closed -$11.6M – 3038
2021
Q2 		$11.6M Buy
273,080
+227,361
+497% +$10.5M 0.05% 420
2021
Q1 		$2.12M Buy
+45,719
New +$1.95M 0.01% 1301
2019
Q3 		– Sell
-12,437
Closed -$209K – 1670
2019
Q2 		$209K Sell
12,437
-242,141
-95% -$3.62M ﹤0.01% 1239
2019
Q1 		$3.4M Buy
+254,578
New +$3.35M 0.03% 585
2018
Q4 		– Sell
-663,335
Closed -$9.74M – 1591
2018
Q3 		$9.74M Buy
+663,335
New +$11.2M 0.08% 306
2017
Q1 		– Sell
-139,850
Closed -$1.53M – 352
2016
Q4 		$1.53M Sell
139,850
-908,545
-87% -$9.86M 0.01% 691
2016
Q3 		$12.1M Sell
1,048,395
-1,500,146
-59% -$18.9M 0.09% 246
2016
Q2 		$28.7M Buy
2,548,541
+2,489,915
+4,247% +$28.7M 0.24% 103
2016
Q1 		$661K Sell
58,626
-286,140
-83% -$2.48M 0.01% 806
2015
Q4 		$3.82M Buy
344,766
+323,679
+1,535% +$4.11M 0.04% 435
2015
Q3 		$267K Buy
+21,087
New +$300K ﹤0.01% 823

Other funds holding BLDR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Sands Capital Management
Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Marshall Wace's BLDR Position: Q1 2026 in Review

Marshall Wace increased its Builders FirstSource (BLDR) stake by 398% in Q1 2026, buying an estimated $66.2M and bringing the position to 776,133 shares worth $63.9M. The position accounts for 0.06% of the portfolio, ranked #282.

Marshall Wace first reported a position in BLDR in Q3 2015 and has held it in 23 quarters since. The position peaked at $90.4M in Q3 2024. 719 funds tracked by Wall St. Rank hold BLDR as of Q1 2026.

  • Marshall Wace held 776,133 shares of Builders FirstSource worth $63.9M as of Q1 2026.
  • Marshall Wace bought 620,264 Builders FirstSource shares in Q1 2026, an estimated $66.2M.
  • Builders FirstSource made up 0.06% of Marshall Wace's portfolio in Q1 2026, its #282 holding.
  • Marshall Wace first reported a position in Builders FirstSource in Q3 2015 and has held it in 23 quarters since.
  • Marshall Wace's Builders FirstSource position peaked at $90.4M in Q3 2024.
  • 719 funds tracked by Wall St. Rank held Builders FirstSource as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.