Nvidia Corp's Chief Executive Officer Jensen Huang has completed a massive pre-planned stock sale, offloading more than $1 billion worth of the chipmaker’s shares since June.This massive stock liquidation, which reportedly wrapped up with a final sale of 25,000 shares on Friday, fulfilled a plan Huang adopted in March to sell up to six million shares by the end of this year.The stock Huang sold was initially valued at$865 million when the sales began in late June. However, driven by “unquenchable demand” f ...