CEO Jensen Huang has sold stock several times this year as part of a program he established beforehand. It is part of a plan that allows him to sell 6 million shares this year. This week, he sold 75,000 shares worth $12.

Unknown to the general public just three years ago, Jensen Huang is now one of the most powerful entrepreneurs in the world as head of chip giant Nvidia. The unassuming 62-year-old draws stadium crowds of more than 10,000 people as his company's products push the boundaries of artificial intelligence.

Behind closed doors with Trump. Center stage in Beijing. Nvidia (NVDA) just pulled off the tech pivot of the year.