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
2026 Q1	$118K	Sell	14,151 -155,192	-92%	-$1.68M	﹤0.01%	11874
2025 Q4	$1.87M	Buy	169,343 +74,755	+79%	+$875K	﹤0.01%	6057
2025 Q3	$1.25M	Sell	94,588 -91,117	-49%	-$1.13M	﹤0.01%	7069
2025 Q2	$2.03M	Sell	185,705 -134,307	-42%	-$1.49M	﹤0.01%	5676
2025 Q1	$4.18M	Buy	320,012 +205,190	+179%	+$3.12M	﹤0.01%	4180
2024 Q4	$1.68M	Buy	114,822 +47,819	+71%	+$815K	﹤0.01%	5987
2024 Q3	$1.24M	Buy	+67,003	New	+$1.09M	﹤0.01%	6416
2024 Q2	–	Sell	-53,821	Closed	-$891K	–	14959
2024 Q1	$1.01M	Buy	53,821 +37,413	+228%	+$593K	﹤0.01%	6900
2023 Q4	$244K	Sell	16,408 -91,082	-85%	-$1.17M	﹤0.01%	9572
2023 Q3	$1.31M	Sell	107,490 -349,368	-76%	-$4.28M	﹤0.01%	6032
2023 Q2	$5.31M	Buy	456,858 +321,518	+238%	+$3.08M	﹤0.01%	3564
2023 Q1	$1.09M	Sell	135,340 -213,716	-61%	-$1.88M	﹤0.01%	6580
2022 Q4	$2.64M	Buy	+349,056	New	+$2.86M	﹤0.01%	4975

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.