John Ternus officially took over as Apple's CEO on September 1, ending Tim Cook's 15-year run at the helm and handing the reins to a longtime hardware executive just over a week before the company's biggest product event of the year.

Cook's final day as CEO was August 31. He now moves into the role of executive chairman of Apple's board, stepping back from day-to-day leadership after more than a decade guiding the company through some of its most profitable years.

Who Is John Ternus?

Ternus joined Apple in 2001 as part of the company's product design team and rose through the ranks over more than two decades, eventually becoming senior vice president of Hardware Engineering in January 2021. In that role, he oversaw hardware development across the iPhone, iPad, Mac, Apple Watch, AirPods, and Apple Vision Pro lines, and is credited with helping develop products including AirPods, iPhone Air, and MacBook Neo.

Colleagues have described him as fundamentally "a hardware guy," a background that lines up with Apple's device-first business model, where software has traditionally existed to support the hardware rather than stand apart from it. That grounding in physical product development marks a shift from Cook, whose background was in operations and supply-chain management rather than engineering, and some analysts see Ternus's hands-on product history as a signal that Apple intends to keep leaning on its hardware strengths even as it works to catch up on software-driven AI features.

Cook's Farewell and New Role

Cook marked his last day as CEO with a message to Apple's community: "Sending lots of love to the Apple community on my last day as CEO. My title changes tomorrow, but the love I have for the Apple community never will."

According to Bloomberg, Cook has told Ternus he'll continue managing Apple's relationships with President Donald Trump and the Chinese government, tasks that leaned heavily on the relationships Cook built during his tenure. Cook has also indicated Apple will remain his top priority even in his new role, saying he "can't imagine it any other way."

A High-Pressure Start for Ternus

Ternus takes the job just ahead of Apple's September 9 "Surprise and shine" event, where he'll lead the unveiling of new products in his first major public moment as CEO rather than Cook. The timing puts him under scrutiny almost immediately, particularly as Apple has faced criticism over recent price increases across its hardware and subscription offerings.

The leadership change also comes as Apple works to close what analysts have described as a gap in its artificial intelligence strategy compared to rivals, an area where Cook's Apple was seen as moving more cautiously than competitors racing to build out AI features. How aggressively Ternus pushes Apple's AI roadmap forward is expected to be one of the most closely watched aspects of his early tenure, especially as rivals continue rolling out AI assistants and features at a faster pace than Apple's Siri overhaul has managed so far.

Apple has also been dealing with rising costs across its supply chain, and the company's recent price increases on hardware and subscription services have drawn pushback from some longtime customers. Ternus inherits those pressures directly, along with the expectation that he'll need to balance profitability with the kind of innovation that made Apple a category leader in the first place.

End of an Era at Apple

Cook took over as CEO from Steve Jobs in 2011 and spent 15 years expanding Apple into one of the most valuable companies in the world, steering it through the launches of the Apple Watch, AirPods, and its shift toward services revenue. His transition to executive chairman keeps him connected to the company without the responsibilities of daily operations, a structure that gives Ternus room to set his own direction while still having Cook available for the relationships he built over the years.

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