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SEC filing
AMBQ · CIK 1500412
4 · Sep 9, 2026 · ZHANG KER sold 185 shares at $56.92/share ($10,530); exercised options for 1,785 shares
ZHANG KER sold 185 shares at $56.92/share ($10,530); exercised options for 1,785 shares
xslF345X06/form4-09092026_090917.xml