John Ternus became Apple's CEO on September 1, succeeding Tim Cook, who led the company for 15 years. Cook will continue at Apple as executive chairman of the board. The company announced the leadership change in April, and it officially took effect today, September 1, according to infohub.kz.

Ternus has been with Apple since 2001. Before his appointment as CEO, he served as senior vice president of Hardware Engineering, overseeing the development of key products including iPhone, iPad, Mac, Apple Watch, and AirPods. He also played a role in transitioning Macs to Apple's own processors. Prior to joining Apple, Ternus worked as a mechanical engineer at Virtual Research Systems and holds a degree in mechanical engineering from the University of Pennsylvania.

One of the new CEO's main tasks will be advancing Apple's artificial intelligence efforts. Reuters notes that Ternus will need to close the gap in this area, especially after delays in updating Siri. Another challenge is restructuring supply chains amid US-China tensions.

Cook took over Apple in 2011 after Steve Jobs. During his tenure, annual revenue grew from about $108 billion to $416 billion, and market capitalization rose from roughly $350 billion to $4.5 trillion. As executive chairman, he will continue to focus on certain areas, including engagement with governments worldwide.

The first major Apple event under Ternus will be a presentation on September 9. The company is expected to unveil the iPhone 18 Pro and iPhone 18 Pro Max, and may also showcase the first foldable iPhone Ultra.

Analysts estimate the foldable iPhone could cost between $2,000 and $2,500, with shipments potentially exceeding 17 million units by 2027. Exact specifications and prices will be announced at the event.