13F

Position

SIMPLEX TRADING, LLC in MasterBrand, Inc.

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Estimated mark uses implied 13F prices (value ÷ shares). Adds are treated as happening at this quarter’s mark; cuts at last quarter’s. Share jumps can be splits, not buys. This is not realized P&L.

Latest estimated mark −$432$11.04$8.30

QuarterSharesValueImplied pxEst. markFlowWeight
Q4 202585.7K$945.9K0.0%
Q1 2026158$1.31K$8.30−$432−$944.1K0.0%