Tim Cook leaves Apple CEO role as John Ternus takes over

Cook endorses Ternus on his final day as CEO

Tim Cook used his final day as Apple CEO to endorse John Ternus, Apple’s senior vice president of hardware engineering, as his successor. In a memo to employees, Cook said he was not leaving Apple but stepping away from the chief executive role. He will remain executive chairman.

Cook described Ternus as a leader who understands what it takes to build products that change the world. The outgoing CEO framed the transition around Apple’s culture, thanking employees and arguing that the company’s shared purpose is central to its success.

In the memo, Cook wrote that Apple’s people believe what they build matters and have a responsibility to leave the world better than they found it. He also invoked Steve Jobs’ description of making a “dent in the universe,” linking that ambition to Apple’s values and its way of seeing the world.

A hardware leader inherits the top job

Ternus led the hardware engineering organization across Apple’s full device lineup. Products shipped under his leadership include the ultra-thin iPhone Air, the lower-cost MacBook Neo, and AirPods with hearing health features. His appointment therefore places a product and hardware executive at the centre of Apple’s next leadership phase.

The background of John Ternus takes Apple CEO role outlines Ternus’ move into the CEO role and helps explain why hardware leadership is central to this transition. Apple hardware remains significant in the AI era not only through chips, but through the devices used to run enterprise AI workloads.

Apple has already adjusted parts of its product cadence in response to AI demand. This year it released new Mac mini and Mac Studio models earlier than in past years. The source does not set out a detailed strategy for AI, services, regulation, China, or other challenges facing the company, but it identifies those areas as part of the context for the handover.

Cook retains an Apple role

Cook said he would miss leading the team while expressing confidence in Ternus’ leadership. He also posted on X that his title would change, but his attachment to the Apple community would not. As executive chairman, Cook will continue to manage political relationships, including those involving President Trump and the Chinese government.

For business leaders, the transition is a practical reminder that executive succession can signal which capabilities will shape product decisions. Organizations that depend on Apple devices should monitor how its hardware roadmap, AI-related demand, and enterprise endpoint options develop under Ternus.