Ken Griffin’s MasterBrand MBC Stock Holding History

Ken Griffin’s Portfolio MBC Stock Details MBC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q2	–	Sell	-600	Closed	-$7.84K	–	14017
2025 Q1	$7.84K	Sell	600 -3,200	-84%	-$48.7K	﹤0.01%	13669
2024 Q4	$55.5K	Sell	3,800 -13,000	-77%	-$222K	﹤0.01%	12283
2024 Q3	$311K	Buy	16,800 +7,800	+87%	+$127K	﹤0.01%	9258
2024 Q2	$132K	Sell	9,000 -1,200	-12%	-$19.9K	﹤0.01%	10527
2024 Q1	$191K	Buy	10,200 +5,600	+122%	+$88.8K	﹤0.01%	10397
2023 Q4	$68.3K	Buy	4,600 +3,200	+229%	+$41K	﹤0.01%	11418
2023 Q3	$17K	Sell	1,400 -3,800	-73%	-$46.6K	﹤0.01%	12749
2023 Q2	$60.5K	Buy	5,200 +1,400	+37%	+$13.4K	﹤0.01%	11579
2023 Q1	$30.6K	Buy	+3,800	New	+$33.5K	﹤0.01%	12721

Other funds holding MBC

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

CCM

Coliseum Capital Management Rowayton, Connecticut $1.22B AUM 18.72% 1-Year Est. Return

GCM

Gates Capital Management New York $3.66B AUM 12.63% 1-Year Est. Return

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

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Pertento Partners London, United Kingdom $1.37B AUM 36.36% 1-Year Est. Return

SSP

Sixth Street Partners Dallas, Texas $711M AUM 9.3% 1-Year Est. Return

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

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Ken Griffin's MBC Position: Q1 2026 in Review

Ken Griffin reduced its MasterBrand (MBC) stake by 92% in Q1 2026, selling an estimated $1.68M and leaving 14,151 shares worth $118K. The position accounts for ﹤0.01% of the portfolio, ranked #11874.

Ken Griffin first reported a position in MBC in Q4 2022 and has held it in 13 quarters since. The position peaked at $5.31M in Q2 2023. 335 funds tracked by Wall St. Rank hold MBC as of Q1 2026.

Ken Griffin held 14,151 shares of MasterBrand worth $118K as of Q1 2026.
Ken Griffin sold 155,192 MasterBrand shares in Q1 2026, an estimated $1.68M.
MasterBrand made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #11874 holding.
Ken Griffin first reported a position in MasterBrand in Q4 2022 and has held it in 13 quarters since.
Ken Griffin's MasterBrand position peaked at $5.31M in Q2 2023.
335 funds tracked by Wall St. Rank held MasterBrand as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.