13F

Position

SIMPLEX TRADING, LLC in Cerus Corp

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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 −$190$2.06$1.82

QuarterSharesValueImplied pxEst. markFlowWeight
Q4 202511.9K$24.5K0.0%
Q1 2026791$1.44K$1.82−$190−$22.9K0.0%