Born November 1, 1960, the Auburn University and Duke University alumnus Tim Cook stands at the helm of the tech sector as the CEO of Apple, and in his 14-year tenure has transformed the company into a multi-trillion-dollar leader in the realms of privacy, environmental sustainability, and supply chain excellence. He also boasts an estimated net worth of $2.6 billion. He is also known for skyrocketing Apple's market valuation to the trillion-dollar mark.