Timothy Donald Cook (born November 1, 1960) is an American business executive, philanthropist, and industrial engineer. Cook is the CEO of Apple Inc. He previously served as the company’s COO under cofounder Steve Jobs.

Cook joined Apple in March of 1998 as a Senoir VP for Worldwide Operations, before serving as the Executive VP for worldwide sales and operations. He became CEO on August 24, 2011, before Jobs’ death in October of that year. During his tenure as the chief executive, he has advocated for the political reformation of international and domestic surveillance, cybersecurity, corporate taxation, American manufacturing, and environmental preservation.

Cook is notable as the first chief executive of a Fortune 500 company to publicly announce that he is gay. Today, Cook also serves on the boards of directors of Nike, Inc., the National Football Foundation, and as a trustee of Duke University. In March 2015, he announced that he planned to donate his entire stock fortune to charity.