Jensen Huang, co-founder and CEO of Nvidia, during the Nvidia GPU Technology Conference in San Jose, California, on March 19, 2024.David Paul Morris | Bloomberg | Getty ImagesFive years ago, Nvidia CEO Jensen Huang owned a stake in his chipmaker worth roughly $3 billion. After Thursday's rally, which pushed the stock to a record, his holdings now stand at more than $90 billion.Nvidia late Wednesday reported first-quarter earnings that topped estimates, with sales jumping more than 200% for a thi...