The final sale of 25,000 shares, reported Friday, wrapped up an arrangement adopted by Huang in March to unload as many as 6 million shares by year-end. The stock was worth about $865 million when he started selling in late June, but has climbed over 40$5 trillion in market value Wednesday after announcing a flurry of new partners, just four months after it cracked the $4 trillion threshold. It has ...