"The Most Likely Heir Apparent" To Tim Cook

Apple is not actively declaring it, but they quietly orchestrating its most significant leadership transition in more than a decade, and at the center of succession planning sits John Ternus, the company’s 50-year-old senior vice president of hardware engineering.

As Tim Cook approaches his 65th birthday next month, industry observers and Apple insiders increasingly view Ternus as the most likely candidate to inherit the reins of one of the world’s most valuable technology companies, according to a new report from Bloomberg’s Mark Gurman, who has reported accurately on Apple for years thanks to sources deep within the company.

The speculation intensified after Apple’s chief operating officer Jeff Williams, once considered Cook’s natural successor, stepped down from operational responsibilities in July and will leave the company by year’s end. With Williams out of contention, Gurman says Ternus has emerged as "the most likely heir apparent."

Ternus brings a combination of technical expertise and institutional knowledge to the succession conversation. According to his LinkedIn profile, the mechanical engineer joined Apple’s product design team in 2001 and has overseen hardware engineering for virtually every major product in the company’s current portfolio.

His fingerprints are on every generation of iPad, the latest iPhone lineup, and AirPods. He played a crucial role in the Mac’s transition to Apple Silicon. He also had a prominent role during Apple’s most recent keynotes, introducing products like the new iPhone Air.

The timing of Ternus’s increased visibility isn’t coincidental. Apple’s public relations teams have begun "putting the spotlight on Ternus," according to Gurman, signaling the company may be preparing for a gradual transition of power. Beyond product launches, Ternus has taken on responsibilities that extend well beyond traditional hardware engineering, influencing product road maps, features, and strategic decisions typically reserved for more senior executives.

At 50, Ternus mirrors Cook’s age when he became CEO in 2011, positioning him for potentially a decade or more of leadership. This longevity factor appeals to Apple’s board of directors, who prefer stability in leadership transitions. His engineering background also matches where Apple is going as a company, exploring emerging technologies like artificial intelligence and mixed reality.