Aigen Investment Management’s Builders FirstSource BLDR Stock Holding History

Aigen Investment 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	–	Sell	-9,286	Closed	-$955K	–	537
2025 Q4	$955K	Buy	+9,286	New	+$1.04M	0.22%	132
2025 Q1	–	Sell	-4,916	Closed	-$703K	–	768
2024 Q4	$703K	Buy	+4,916	New	+$870K	0.12%	243
2024 Q2	–	Sell	-10,195	Closed	-$2.13M	–	784
2024 Q1	$2.13M	Buy	+10,195	New	+$1.88M	0.46%	38
2023 Q4	–	Sell	-5,361	Closed	-$667K	–	804
2023 Q3	$667K	Buy	+5,361	New	+$740K	0.13%	271
2023 Q2	–	Sell	-8,816	Closed	-$783K	–	752
2023 Q1	$783K	Buy	+8,816	New	+$698K	0.11%	223
2022 Q3	–	Sell	-40,355	Closed	-$2.17M	–	585
2022 Q2	$2.17M	Buy	40,355 +24,550	+155%	+$1.51M	0.36%	77
2022 Q1	$1.02M	Sell	15,805 -2,048	-11%	-$149K	0.18%	157
2021 Q4	$1.4M	Buy	+17,853	New	+$1.21M	0.09%	311
2020 Q4	–	Sell	-9,572	Closed	-$312K	–	793
2020 Q3	$312K	Buy	+9,572	New	+$260K	0.04%	524

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

Aigen Investment Management's BLDR Position: Q1 2026 in Review

Aigen Investment Management sold out of Builders FirstSource (BLDR) in Q1 2026, closing a stake of 9,286 shares — an estimated $955K sold.

Aigen Investment Management first reported a position in BLDR in Q3 2020 and held it in 9 quarters. The position peaked at $2.17M in Q2 2022. 719 funds tracked by Wall St. Rank hold BLDR as of Q1 2026.

Aigen Investment Management reported no remaining Builders FirstSource position as of Q1 2026 after selling out during the quarter.
Aigen Investment Management sold 9,286 Builders FirstSource shares in Q1 2026, an estimated $955K.
Aigen Investment Management first reported a position in Builders FirstSource in Q3 2020 and held it in 9 quarters.
Aigen Investment Management's Builders FirstSource position peaked at $2.17M in Q2 2022.
719 funds tracked by Wall St. Rank held Builders FirstSource as of Q1 2026.

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