Tim Cook’s farewell: the Ternus era begins at Apple
Information based on official specs. The author has not had physical access to the product for this report.
Apple confirmed on April 20, 2026, the biggest leadership change in fifteen years: Tim Cook is stepping down as CEO. His last day in the role will be August 31, and on September 1 John Ternus, until now head of hardware engineering, will take over. The WWDC 2026 keynote was Cook’s last as chief executive. It is the first succession at the top of Apple since Cook replaced Steve Jobs in 2011.
Cook is not leaving Apple. He will become executive chairman of the board, a new role from which he will focus on what he has done best over the past decade: managing relationships with governments and regulators around the world. Ternus becomes CEO and joins the board the same day.
There are more changes. Arthur Levinson, chairman of the board for fifteen years, becomes lead independent director. And Johny Srouji, currently in charge of hardware technologies, takes over the hardware engineering organization that Ternus is leaving behind. The board approved the transition unanimously, as part of a succession plan that, according to Apple, had been in the works for some time.
Ternus is 50 years old and joined Apple in 2001. He has led hardware engineering since 2021, and his imprint can be seen in the iPad, AirPods, and several generations of iPhone, Mac, and Apple Watch. He holds a mechanical engineering degree from the University of Pennsylvania and was a competitive swimmer in college.
The profile signals a shift. Cook is a master of operations and logistics; Ternus is a product person, an engineer, closer in that sense to Steve Jobs than to his predecessor. Cook described him as someone with "the mind of an engineer and the soul of an innovator." The flip side: he is considerably less polished than Cook in front of a camera, and his appearances over the next few months will be scrutinized closely.
Cook took over Apple in 2011, weeks before Jobs’s death, and turned it into the most valuable company in the world. Under his leadership, services grew to generate more than $100 billion a year, and wearables became a category of their own: the Apple Watch came to represent nearly a quarter of global smartwatch sales. Cook summarized his time in the role as the greatest privilege of his life.
Ternus inherits Apple at an uncomfortable moment. The company is playing catch-up in generative artificial intelligence against Google, OpenAI, and Anthropic, faces regulatory pressure in Washington and Brussels, and is preparing its first foldable iPhone. WWDC 2026 made the priority clear: a rebuilt Siri and a late but forceful push into artificial intelligence.
The underlying question is whether a hardware engineer is the CEO Apple needs precisely when its biggest challenge is software and AI. For continuity — the product cadence, the culture, the operations chain — Ternus is a safe bet: a company insider, shaped under Jobs and Cook. The real test is something else: whether he will be able to lead the AI recovery that WWDC 2026 itself put front and center. We will only start to see that when it is his turn to take the stage alone in September.
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