Apple CEO Tim Cook stepped down from his role on Tuesday, September 1, 2026, transitioning to executive chairman of the board. John Ternus, previously the senior vice president of hardware engineering, succeeded Cook as the company’s new chief executive officer. Cook, who led the technology firm for 15 years, will now focus on engaging with global policymakers and managing Apple’s relationships with the U.S. government and China.
The transition follows a succession plan first announced by the company in April 2026. During his tenure as CEO, which began in 2011 after the death of co-founder Steve Jobs, Cook oversaw Apple’s growth from a market capitalization of approximately $350 billion to $4.6 trillion. The company’s active device base also expanded from 200 million to 2.5 billion units during the same period. Under Cook’s leadership, Apple introduced new product categories, including the Apple Watch, AirPods, and Vision Pro, while significantly expanding its services business and transitioning to Apple-designed silicon chips.
Detailing his new role, Bloomberg reported that Cook informed Ternus he would personally manage relationships with President Trump and the Chinese government. During Trump’s first and second terms, Cook maintained a working relationship with the president, which technology analysts say was instrumental in securing a 2025 tariff exemption for electronics such as iPhones and Mac computers. Following that exemption, Apple regained a $3 trillion market cap. Cook also announced a $100 billion investment in U.S. manufacturing in 2025, contributing to a total $600 billion domestic investment.
Ternus, who joined Apple’s product design team in 2001, takes over as the company faces increased competition in artificial intelligence. While Cook is credited with scaling Apple’s supply chain and ecosystem, some analysts noted that the company has lagged behind competitors like Microsoft and Google in the AI sector. Ternus, described by Cook as having "the mind of an engineer," previously oversaw the development of the iPad, AirPods, and recent iPhone generations.
The shift in responsibility for government relations is significant for the tech industry's broader standing in Washington. By having Cook, a seasoned executive with established political ties, focus specifically on policy, Apple seeks to protect its $4.6 trillion valuation from shifting trade policies and geopolitical tensions. For investors and workers, the scale of Apple's success—represented by an annual revenue that grew from $108 billion in 2011 to $416 billion in 2025—means that any disruption in its supply chain or its ability to navigate U.S.-China trade relations could have substantial effects on the broader technology market and global manufacturing sectors.
This transition sets a precedent for how mature technology giants manage the departure of long-term leaders who have become central to their corporate identity. While Ternus focuses on technical innovation and product hardware, Cook’s continued presence as executive chairman ensures that the company’s high-level diplomatic efforts remain consistent. What happens next will be visible as Ternus leads his first annual product event next week, while the board monitors the company's efforts to catch up in the artificial intelligence sector and navigate potential new tariffs or trade restrictions.
Arthur Levinson, who served as non-executive chairman for 15 years, became Apple's lead independent director on September 1, 2026, the same day Ternus joined the board of directors.