Tim Cook unquestionably had a stellar run at the head of Apple (NASDAQ: AAPL) . When he took over the CEO job in August 2011, Apple was already a force -- the iPhone was a hit, the iPad was relatively new, and the customer base was fiercely loyal. But what Cook did over the next 15 years was remarkable . Apple's annual revenue nearly quadrupled, growing from $108 billion in fiscal 2011 to $416 billion in fiscal 2025. And iPhone sales, which were already enormous when Cook arrived, climbed from roughly $47 billion to nearly $210 billion. Now John Ternus has taken over as Apple's CEO.
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