Superinvestor Tracker
← All Investors

MASTERBRAND INC

MBC

Holders

1

Combined Value

$14.56M

Combined Shares

1,752,263

Current Price

$8.88

52W High

$14.22

vs 52W High

−37.6%

Investor Activity Chart

Quarterly buys (▲) and sells (▼) by tracked investors. Click a marker to view that investor's portfolio; hover for details. Price line is implied from 13F filings (value ÷ shares), not market data.

$6.26$11.04$15.81$20.59Q2'24Q3'24Q4'24Q1'25Q2'25Q3'25Q4'25Q1'26Q2 2024 · implied price $14.68Q3 2024 · implied price $18.54Q4 2024 · implied price $14.61Q1 2025 · implied price $13.06Q2 2025 · implied price $10.93Q3 2025 · implied price $13.17Q4 2025 · implied price $11.04Q1 2026 · implied price $8.31Jim Simons - Renaissance Technologies · bought 1,442,018 shares @ ~$14.68 · Q2 2024 (new position)Davis Selected Advisers · bought 823,506 shares @ ~$14.68 · Q2 2024 (new position)Harris Associates (Oakmark Funds) · bought 52,598 shares @ ~$14.68 · Q2 2024 (new position)Jim Simons - Renaissance Technologies · bought 5,000 shares @ ~$14.61 · Q4 2024Harris Associates (Oakmark Funds) · sold 2,236 shares @ ~$14.61 · Q4 2024Jim Simons - Renaissance Technologies · bought 501,082 shares @ ~$10.93 · Q2 2025Harris Associates (Oakmark Funds) · bought 62,040 shares @ ~$10.93 · Q2 2025Jim Simons - Renaissance Technologies · bought 60,608 shares @ ~$13.17 · Q3 2025Harris Associates (Oakmark Funds) · sold 2,165 shares @ ~$13.17 · Q3 2025Jim Simons - Renaissance Technologies · bought 158,500 shares @ ~$11.04 · Q4 2025Harris Associates (Oakmark Funds) · sold 1,521 shares @ ~$11.04 · Q4 2025Jim Simons - Renaissance Technologies · sold 519,600 shares @ ~$8.31 · Q1 2026Harris Associates (Oakmark Funds) · sold 108,716 shares @ ~$11.04 · Q1 2026 (sold out)Jim Simons - Renaissance Technologies · bought 73,955 shares @ ~$18.54 · Q3 2024Davis Selected Advisers · sold 823,506 shares @ ~$14.68 · Q3 2024 (sold out)Jim Simons - Renaissance Technologies · bought 30,700 shares @ ~$13.06 · Q1 2025BUYSELLIMPLIED PRICE

Held By

Tracked investors currently holding this security, based on each investor's most recent 13F filing. Gain compares the current market price to each investor's estimated average buy price.

InvestorValue% of PortfolioAvg Buy PriceGainLast ActivityAs of
Jim Simons - Renaissance Technologies$14.56M0.02%~$13.66−35.0%SELL Q1 2026Q1 2026

Recent Activity

Latest position changes by tracked investors. Prices are estimates implied from 13F filings.

QuarterInvestorActionEst. ValueEst. Price
Q1 2026Jim Simons - Renaissance TechnologiesSELL−$4.32M~$8.31
Q1 2026Harris Associates (Oakmark Funds)SOLD OUT−$1.20M~$11.04
Q4 2025Jim Simons - Renaissance TechnologiesBUY+$1.75M~$11.04
Q4 2025Harris Associates (Oakmark Funds)SELL−$16.8K~$11.04
Q3 2025Jim Simons - Renaissance TechnologiesBUY+$798.2K~$13.17
Q3 2025Harris Associates (Oakmark Funds)SELL−$28.5K~$13.17
Q2 2025Jim Simons - Renaissance TechnologiesBUY+$5.48M~$10.93
Q2 2025Harris Associates (Oakmark Funds)BUY+$678.1K~$10.93
Q1 2025Jim Simons - Renaissance TechnologiesBUY+$400.9K~$13.06
Q4 2024Jim Simons - Renaissance TechnologiesBUY+$73.1K~$14.61
Q4 2024Harris Associates (Oakmark Funds)SELL−$32.7K~$14.61
Q3 2024Davis Selected AdvisersSOLD OUT−$12.09M~$14.68
Q3 2024Jim Simons - Renaissance TechnologiesBUY+$1.37M~$18.54
Q2 2024Jim Simons - Renaissance TechnologiesNEW BUY+$21.17M~$14.68
Q2 2024Davis Selected AdvisersNEW BUY+$12.09M~$14.68
Q2 2024Harris Associates (Oakmark Funds)NEW BUY+$772.1K~$14.68

Ownership History

Aggregate position across all tracked investors per quarter (options excluded). Implied price is the reported value divided by shares held.

PeriodHoldersTotal SharesΔ SharesTotal ValueImplied Price
Q1 202611,752,263-26.4%$14.56M$8.31
Q4 202522,380,579+7.1%$26.28M$11.04
Q3 202522,223,600+2.7%$29.28M$13.17
Q2 202522,165,157+35.2%$23.67M$10.93
Q1 202521,602,035+2.0%$20.92M$13.06
Q4 202421,571,335+0.2%$22.96M$14.61
Q3 202421,568,571-32.3%$29.08M$18.54
Q2 202432,318,122—$34.03M$14.68