13F

Position

SIMPLEX TRADING, LLC in Atomera 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 $1.04K$2.21$3.81

QuarterSharesValueImplied pxEst. markFlowWeight
Q4 20253.43K$7.57K0.0%
Q1 2026648$2.47K$3.81$1.04K−$6.14K0.0%