John Ternus takes over as Apple CEO as Tim Cook becomes chair

John Ternus is Apple's chief executive as of today, September 1, 2026, with Tim Cook moving to executive chairman of the board. This is not a boardroom surprise. Apple announced the handoff in an April 20 press release, and today is simply the date it takes effect.

You can see it live: apple.com/leadership now lists Ternus as CEO and Cook as executive chair, so this is a completed succession, not a rumor or a markets tip.

Two other moves land the same day. Arthur Levinson shifts from non-executive chairman to lead independent director, and Ternus joins the board. The person now at the top ran hardware engineering rather than operations or finance, which is a real change in the shape of who leads Apple.

Who Ternus is

Ternus joined Apple's product design group in 2001, became vice president of hardware engineering in 2013, and has sat on the executive team as senior vice president of hardware engineering since 2021. He holds a mechanical engineering degree from the University of Pennsylvania. In the announcement, Cook framed the pick this way: "John Ternus has the mind of an engineer, the soul of an innovator, and the heart to lead with integrity."

What Cook hands over

The numbers Cook leaves behind are the reason this matters. In the April announcement, Apple put its market value at roughly $350 billion to $4 trillion across his tenure, a rise of more than 1,000 percent, with annual revenue climbing from $108 billion in 2011 to more than $416 billion in 2025. Services alone is now a business worth more than $100 billion a year, and the installed base sits above 2.5 billion devices. Ternus inherits a company at its financial peak, which sets a high bar and removes the easy excuse of a turnaround.

A quieter promotion on the same page

One detail on the leadership page today goes beyond what the April release spelled out. Johny Srouji, who has overseen Apple's custom silicon, is now listed as Chief Hardware Officer, a C-level title above the senior vice president rank he held before. With an engineer in the CEO seat and silicon elevated to a chief-officer post, Apple is signaling that custom hardware, not services or retail, is the center of gravity in the Ternus era.

The takeaway

For anyone building on Apple's platforms or weighing the stock, treat today as the start of the Ternus era, not a ceremonial title swap. The first real test is eight days out. The September 9 keynote is the first product event he owns, even though the lineup was greenlit under Cook. Watch whether a hardware-first CEO shifts the pace or the priorities of what Apple ships, because that, not the org chart, is what shapes the next few years.