AXT Inc of Fremont, CA, USA — which makes gallium arsenide (GaAs), indium phosphide (InP) and germanium (Ge) substrates and raw materials at plants in China — says that, in connection with its underwritten public offering of 8,560,311 shares of common stock (completed on 22 April), the underwriters have exercised their over-allotment option to purchase an additional 1,284,046 shares at a price of $64.25, yielding additional gross proceeds of about $82.5m, before deducting underwriting discounts and commissions and other offering expenses...
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