He Bought Nvidia Stock in 1993. Now It's the Backbone of His $8.8 Billion Net Worth. Venture capitalist Mark Stevens is Nvidia’s second-largest shareholder. Previous Article Join the #1 Breakfast Franchise with Eggs Up Grill! Next Article Jason Feifer's Path to a Resilient Mindset: A Behind-the-Scenes Look at the Editor-in-Chief of Entrepreneur magazine