Boothbay Fund Management’s Builders FirstSource BLDR Stock Holding History

Boothbay Fund Management’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	$363K	Buy	+4,407	New	+$471K	﹤0.01%	1525
2025 Q4	–	Sell	-20,766	Closed	-$2.52M	–	1989
2025 Q3	$2.52M	Buy	+20,766	New	+$2.75M	0.04%	514
2025 Q2	–	Sell	-8,115	Closed	-$1.01M	–	1465
2025 Q1	$1.01M	Sell	8,115 -8,322	-51%	-$1.21M	0.03%	622
2024 Q4	$2.35M	Sell	16,437 -17,695	-52%	-$3.13M	0.06%	404
2024 Q3	$6.62M	Buy	34,132 +25,374	+290%	+$4.21M	0.15%	175
2024 Q2	$1.21M	Sell	8,758 -3,330	-28%	-$565K	0.03%	655
2024 Q1	$2.52M	Sell	12,088 -26,361	-69%	-$4.87M	0.05%	426
2023 Q4	$6.42M	Buy	+38,449	New	+$5.11M	0.16%	137
2023 Q3	–	Sell	-4,756	Closed	-$647K	–	1744
2023 Q2	$647K	Buy	+4,756	New	+$529K	0.01%	993
2022 Q3	–	Sell	-5,260	Closed	-$282K	–	2250
2022 Q2	$282K	Buy	+5,260	New	+$323K	0.01%	1500
2017 Q1	–	Sell	-12,669	Closed	-$139	–	750
2016 Q4	$139	Buy	+12,669	New	+$137K	0.03%	650
2015 Q3	–	Sell	-11,076	Closed	-$142K	–	466
2015 Q2	$142K	Sell	11,076 -7,924	-42%	-$96.7K	0.06%	357
2015 Q1	$127K	Buy	+19,000	New	+$119K	0.08%	278

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

Boothbay Fund Management's BLDR Position: Q1 2026 in Review

Boothbay Fund Management opened a new position in Builders FirstSource (BLDR) in Q1 2026: 4,407 shares worth $363K. The stake represents ﹤0.01% of the portfolio and ranks #1525 among its holdings. This is a return to the name: Boothbay Fund Management previously reported a position in BLDR as recently as Q3 2025.

Boothbay Fund Management first reported a position in BLDR in Q1 2015 and has held it in 13 quarters since. The position peaked at $6.62M in Q3 2024. 719 funds tracked by Wall St. Rank hold BLDR as of Q1 2026.

Boothbay Fund Management held 4,407 shares of Builders FirstSource worth $363K as of Q1 2026.
Builders FirstSource was a new Boothbay Fund Management position in Q1 2026.
Builders FirstSource made up ﹤0.01% of Boothbay Fund Management's portfolio in Q1 2026, its #1525 holding.
Boothbay Fund Management first reported a position in Builders FirstSource in Q1 2015 and has held it in 13 quarters since.
Boothbay Fund Management's Builders FirstSource position peaked at $6.62M in Q3 2024.
719 funds tracked by Wall St. Rank held Builders FirstSource as of Q1 2026.

Based on Boothbay Fund Management's 13F filing for Q1 2026, filed 15 May 2026.