John Ternus Becomes Apple CEO as Tim Cook’s 15-Year Era Ends
Apple has officially changed CEOs, with John Ternus taking over from Tim Cook on September 1, 2026. The leadership transition marks a major turning point for the world’s most influential technology companies, as Apple prepares to compete more aggressively in artificial intelligence, hardware and next-generation computing.
Apple announced in April that Ternus, the company’s senior vice president of Hardware Engineering, would become Apple CEO on September 1. Tim Cook, who led Apple since 2011, has moved into the role of executive chairman. The transition was approved unanimously by Apple’s board.
The change makes John Ternus the new Apple CEO at a critical moment for the company. Apple is facing growing pressure to accelerate its AI strategy while maintaining the product ecosystem and financial strength built during the Tim Cook era.
Why Did Tim Cook Step Down as Apple CEO?
Tim Cook’s departure ends one of the longest and most consequential leadership periods in Apple’s history.
Under Cook, Apple expanded from a company heavily dependent on the iPhone into a broader technology and services business. Products and services including the App Store, iCloud, Apple Music and Apple Pay helped create recurring revenue streams alongside hardware sales.
Apple’s market value also increased dramatically during Cook’s tenure. According to the 36Kr report, the company’s market capitalization grew from roughly $350 billion when Cook became CEO to around $4 trillion, while annual revenue increased from $108 billion in fiscal 2011 to more than $416 billion in fiscal 2025.
Cook will remain closely connected to Apple as executive chairman and is expected to assist with areas including engagement with policymakers.
Who Is John Ternus, Apple’s New CEO?
John Ternus is a longtime Apple executive with more than two decades at the company.
He joined Apple in 2001 and became head of Hardware Engineering in 2021. His career has focused heavily on Apple’s hardware products, including the iPad, Mac, AirPods, iPhone and Apple Watch.
Ternus also played an important role in Apple’s transition to its own Apple Silicon chips. His appointment signals that Apple is placing a strong emphasis on product engineering and hardware as it enters a new phase of competition.
Reuters has described Ternus as a product-focused executive taking charge as AI reshapes the technology industry.
What Is John Ternus’ Biggest Challenge at Apple?
Apple’s AI strategy is likely to be one of Ternus’ biggest tests.
Apple Intelligence launched in 2024, but the company has faced criticism over the pace of its AI development. Siri has also become a particular pressure point as rivals such as Google, Microsoft, Meta and OpenAI rapidly expand their AI capabilities.
The challenge is bigger than simply adding AI features. Apple must determine how artificial intelligence will change the iPhone, Mac, operating systems and the wider Apple ecosystem.
Ternus is taking over at a time when AI is increasingly moving from cloud-based software into devices. That could play directly into his hardware background, particularly Apple’s strength in custom chips and on-device computing.
What Happens Next for Apple?
Ternus’ first major public test will arrive quickly. Apple is scheduled to hold its next major product launch event on September 9, just days after the leadership transition. The company is expected to introduce its next iPhone lineup, with reports also pointing to a potential foldable iPhone.
The Apple CEO change in 2026 therefore comes at a pivotal moment. Cook leaves behind an exceptionally powerful business, while Ternus inherits pressure to make Apple more competitive in AI and deliver the next major wave of product innovation.
The Tim Cook era-built Apple into a global commercial powerhouse. The John Ternus era will determine whether Apple can turn that strength into its next breakthrough.
