75-Year-Old Billionaire Ray Dalio Just Sold His Last Shares in the Hedge-Fund Firm He Founded. Here's Why He's 'Thrilled About It.' Dalio served in a variety of positions at Bridgewater Associates, including CEO, CIO and chairman, over decades. Previous Article Build Smarter Workflows With Lifetime Access to This Project Management Course Pack Next Article AI Isn't Plug-and-Play — You Need a Strategy. Here's Your Guide to Building One.