Apple's Next CEO: John Ternus

In 1997, Apple was months from insolvency, and Steve Jobs returned to the company that had forced him out a decade earlier. Fourteen years later, just before his passing, he had built it into the world's most valuable firm. Tim Cook then ran it for 15 years and grew it into a roughly $4 trillion business. One person has been there for almost all of it: John Ternus. He joined in 2001, and in April 2026, Apple announced he would take over as CEO on September 1. This is his story.

Key insights

• Mechanical engineer: Ternus studied engineering at Penn, joined Apple in 2001, and never left.

• Mac and beyond: He oversaw engineering on virtually every major Apple product before becoming CEO.

• Inherits the AI question: The CEO transition happens as the company faces growing pressure to articulate an AI strategy.

The making of an engineer

Ternus was born in May 1975 and grew up in California. He has said little publicly about his upbringing, and the early chapters of his life remain largely private. What we do know is that he studied mechanical engineering at the University of Pennsylvania, swam on the varsity team, and graduated in 1997.

After graduation, he joined Virtual Research Systems. It was a small firm designing a virtual reality headset at a time when the technology was treated more as an experiment than a commercial product. In hindsight, the experience foreshadowed what was to come, as three decades later, he would be part of the leadership team that brought the Apple Vision Pro to market.

A career inside Apple

After four years at Virtual Research Systems, Ternus joined Apple's product design team in 2001, just a few months before the company introduced the original iPod. His first project was the Apple Cinema Display, a high-end external monitor that can be seen as the equivalent of today’s Pro Display XDR. It was during this period that he formed his standards.

He once found himself at a supplier's facility past midnight with a magnifying glass, counting the grooves on a screw to verify there were exactly 25, as specified (there weren’t). The screws sat on the back of the display, where almost no customer would ever see them. He later recalled thinking to himself:

He spent the next 12 years doing exactly that, working across Apple's product lines without much public visibility. By 2013, he was promoted to vice president of hardware engineering under Dan Riccio, giving him responsibility for the iPad and Mac lineups. Three years later, Ternus also oversaw the launch of AirPods.

Two years before his promotion, he was offered a corner office but declined in favor of staying in the open-plan workspace, alongside his teams. Colleagues reportedly describe him as someone who does not point fingers when things go wrong, but instead focuses on fixing the underlying problem. Those traits, quiet as they were, likely helped build his reputation within the company.

From the open floor to the corner office

By 2020, Ternus' area of responsibility had grown to include Apple's most important product – the iPhone – which even to this day represents more than half of the company's revenue. He also played a key role in Apple's transition from Intel processors to its own silicon across the Mac product line, a pivotal moment in the company's hardware strategy.

In 2021, when Riccio stepped aside to lead the then-secretive Vision Pro project, Ternus was promoted to senior vice president of hardware engineering and joined Apple's executive team, reporting directly to Tim Cook. Apple Watch was added to his remit not long after, and he became responsible for the engineering teams behind nearly all of Apple’s end-user products.

His path to the top job opened up in July 2025, when Jeff Williams, Apple's Chief Operating Officer and reportedly the leading candidate to succeed Cook, stepped down from operational responsibilities. Less than a year later, in April 2026, Apple announced that Cook would hand over the CEO role and become executive chairman, with Ternus taking over and joining the board.

Cook described his successor as having "the mind of an engineer, the soul of an innovator, and the heart to lead with integrity and with honor." It is a fair summary of the profile this article has tried to capture, and after 25 years inside the company, the choice now seems obvious.

The AI question ahead

Ternus inherits Apple during an interesting time for the industry. The company has built a market value of nearly $4 trillion despite having largely sat out the artificial intelligence buildout that has redefined the rest of Big Tech. Microsoft, Alphabet, Amazon, and Meta are committing hundreds of billions of dollars in combined capex to fund AI data centers and chips. In comparison, Apple has not.

Apple Intelligence, launched in 2024, has been received as a measured step more than a defining product, and the long-promised personalized Siri upgrade has been postponed. As of now, Apple's answer has been to license AI models from outside the company, and later this year, Siri is expected to be powered by Google's Gemini.

In a recent interview, Ternus and Greg Joswiak (Senior Vice President, Worldwide Marketing) described their view of Apple's job as shipping experiences, not features. AI should not be something the user notices; it should simply make what they are already doing better.

There are reportedly several products under development that will partially test that thesis: AI-powered smart glasses, an AirPods variant with cameras, Siri upgrades, and a foldable iPhone expected this fall. With Ternus's record on hardware integration, from the original AirPods to bringing Apple's own silicon into the Mac line, he is the bet the company is making.

Closing thoughts

The choice of Ternus signals how Apple sees the next chapter. Cook delivered operational discipline and turned the company into a financial powerhouse. His successor is a product builder with a record that runs from counting grooves at midnight to integrating new technology across the Apple product line. At Penn in 2024, Ternus told the graduating class that on his first day at Apple, he was not sure he even belonged among such a talented group. In retrospect, quite ironic coming from someone now stepping into the top position.