Investment Management Corp of Ontario (IMCO)’s Builders FirstSource BLDR Stock Holding History

Investment Management Corp of Ontario (IMCO)’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 Q2	$467K	Sell	5,218 -2,657	-34%	-$212K	0.01%	624
2026 Q1	$648K	Buy	7,875 +400	+5%	+$42.7K	0.01%	610
2025 Q4	$769K	Buy	7,475 +2,296	+44%	+$258K	0.01%	602
2025 Q3	$628K	Buy	5,179 +2,407	+87%	+$319K	0.01%	565
2025 Q2	$323K	Sell	2,772 -500	-15%	-$57.7K	﹤0.01%	590
2025 Q1	$409K	Sell	3,272 -4,886	-60%	-$711K	0.01%	564
2024 Q4	$1.17M	Sell	8,158 -5,685	-41%	-$1.01M	0.04%	224
2024 Q3	$2.68M	Sell	13,843 -362	-3%	-$60K	0.06%	224
2024 Q2	$1.97M	Sell	14,205 -6,563	-32%	-$1.11M	0.05%	231
2024 Q1	$4.33M	Buy	20,768 +14,475	+230%	+$2.68M	0.13%	109
2023 Q4	$1.05M	Sell	6,293 -24,086	-79%	-$3.2M	0.03%	338
2023 Q3	$3.78M	Buy	+30,379	New	+$4.19M	0.15%	96

Other funds holding BLDR

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return

Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Investment Management Corp of Ontario (IMCO)'s BLDR Position: Q2 2026 in Review

Investment Management Corp of Ontario (IMCO) reduced its Builders FirstSource (BLDR) stake by 34% in Q2 2026, selling an estimated $212K and leaving 5,218 shares worth $467K. The position accounts for 0.01% of the portfolio, ranked #624.

Investment Management Corp of Ontario (IMCO) first reported a position in BLDR in Q3 2023 and has held it in 12 quarters since. The position peaked at $4.33M in Q1 2024. 670 funds tracked by Wall St. Rank hold BLDR as of Q2 2026.

Investment Management Corp of Ontario (IMCO) held 5,218 shares of Builders FirstSource worth $467K as of Q2 2026.
Investment Management Corp of Ontario (IMCO) sold 2,657 Builders FirstSource shares in Q2 2026, an estimated $212K.
Builders FirstSource made up 0.01% of Investment Management Corp of Ontario (IMCO)'s portfolio in Q2 2026, its #624 holding.
Investment Management Corp of Ontario (IMCO) first reported a position in Builders FirstSource in Q3 2023 and has held it in 12 quarters since.
Investment Management Corp of Ontario (IMCO)'s Builders FirstSource position peaked at $4.33M in Q1 2024.
670 funds tracked by Wall St. Rank held Builders FirstSource as of Q2 2026.

Based on Investment Management Corp of Ontario (IMCO)'s 13F filing for Q2 2026, filed 14 Aug 2026.