NVIDIA's new interim CEO Colette Kress was the 32nd richest self-made American woman in 2026, according to Fortune, with a net worth of $1.2 billion as of June 3, which has since dropped to $750 million. Although she didn't start a company, Kress' fortune crossed the $1-billion mark. This is mainly due to the 4.44 million NVIDIA shares she owns.