XTX Topco’s Builders FirstSource BLDR Stock Holding History

XTX Topco’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	$5.18M	Buy	62,966 +50,559	+408%	+$5.4M	0.09%	268
2025 Q4	$1.28M	Buy	12,407 +4,170	+51%	+$469K	0.03%	858
2025 Q3	$999K	Buy	+8,237	New	+$1.09M	0.05%	575
2025 Q2	–	Sell	-7,593	Closed	-$949K	–	2390
2025 Q1	$949K	Buy	+7,593	New	+$1.1M	0.05%	600
2024 Q4	–	Sell	-10,579	Closed	-$2.05M	–	2313
2024 Q3	$2.05M	Buy	10,579 +9,011	+575%	+$1.49M	0.15%	140
2024 Q2	$217K	Sell	1,568 -1,093	-41%	-$186K	0.02%	1181
2024 Q1	$555K	Buy	2,661 +1,181	+80%	+$218K	0.07%	434
2023 Q4	$247K	Sell	1,480 -5,394	-78%	-$717K	0.05%	788
2023 Q3	$856K	Sell	6,874 -247	-3%	-$34.1K	0.15%	152
2023 Q2	$968K	Buy	+7,121	New	+$792K	0.17%	93
2022 Q2	–	Sell	-8,802	Closed	-$568K	–	863
2022 Q1	$568K	Buy	+8,802	New	+$639K	0.25%	114

Other funds holding BLDR

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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 Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Sands Capital Management Arlington, Virginia $25.5B AUM 26.46% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

XTX Topco's BLDR Position: Q1 2026 in Review

XTX Topco increased its Builders FirstSource (BLDR) stake by 408% in Q1 2026, buying an estimated $5.4M and bringing the position to 62,966 shares worth $5.18M. The position accounts for 0.09% of the portfolio, ranked #268.

XTX Topco first reported a position in BLDR in Q1 2022 and has held it in 11 quarters since. 719 funds tracked by Wall St. Rank hold BLDR as of Q1 2026.

XTX Topco held 62,966 shares of Builders FirstSource worth $5.18M as of Q1 2026.
XTX Topco bought 50,559 Builders FirstSource shares in Q1 2026, an estimated $5.4M.
Builders FirstSource made up 0.09% of XTX Topco's portfolio in Q1 2026, its #268 holding.
XTX Topco first reported a position in Builders FirstSource in Q1 2022 and has held it in 11 quarters since.
719 funds tracked by Wall St. Rank held Builders FirstSource as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.