13F

Position

SIMPLEX TRADING, LLC in Build-A-Bear Workshop 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 −$9.74K$61.27$37.45

QuarterSharesValueImplied pxEst. markFlowWeight
Q4 20251.29K$79.3K0.0%
Q1 2026409$15.3K$37.45−$9.74K−$54.3K0.0%