Tim Cook takes a bow as Apple CEO after 15 years, John Ternus takes charge

Tim Cook has officially ended his 15-year tenure as Chief Executive Officer of Apple Inc., handing operational leadership of the technology giant to longtime hardware chief John Ternus.

The transition, which took effect on Monday, August 31, marks the end of one of the most financially successful leadership periods in corporate history. Cook, 65, will remain actively involved at Apple Park as Executive Chairman of the Board, while Arthur Levinson, who served as Chairman for 15 years, moves into the role of Lead Independent Director.

Cook’s 15-year legacy at Apple

Cook became Apple CEO in August 2011 following the resignation of co-founder Steve Jobs. At the time, some questioned whether an operations specialist could preserve the creative momentum that had come to define the company under Jobs.

Over the following decade and a half, Cook established himself as a highly effective operator and strategist, overseeing an extraordinary period of growth for Apple.

During his tenure, Apple’s market capitalisation expanded from roughly $350 billion in 2011 to a record level fluctuating between $4 trillion and $5 trillion. Annual revenue quadrupled from $108 billion to nearly $400 billion, supported by supply chain optimisation, global retail expansion and strategic growth in emerging markets.

Cook also expanded Apple’s hardware ecosystem beyond the iPhone, introducing major product categories such as the Apple Watch, AirPods and Apple Vision Pro spatial computer.

His most significant strategic shift, however, was the transformation of Apple into a services powerhouse. Platforms including the App Store, Apple Music, iCloud+, Apple Pay and Apple TV+ helped drive the Services division into a business generating more than $100 billion in annual revenue.

In a final memo to employees, Cook reflected on his time at the helm of the company.

“As you know, I am not leaving Apple. But I am stepping away from a role that I have loved deeply,” Cook wrote. “Few people understand what it takes to build products that change the world the way John does, and I could not be more excited for his leadership.”

As Executive Chairman, Cook will focus on high-level strategic guidance, global government relations, policy engagement and supporting the company’s new leadership team.

John Ternus takes over as Apple CEO

The appointment of John Ternus, 51, signals Apple’s renewed emphasis on engineering and hardware design as it enters its next phase.

A 25-year Apple veteran, Ternus joined the company’s product design team in 2001 after graduating from the University of Pennsylvania with a degree in mechanical engineering.

He steadily rose through Apple’s ranks, becoming Vice President of Hardware Engineering in 2013 before joining the executive team as Senior Vice President in 2021.

During his quarter-century at Apple, Ternus oversaw hardware development across some of the company’s most important product lines, including multiple generations of the iPhone, iPad, Mac and Apple Watch.

He also played a key operational role in Apple’s transition away from Intel processors to its own Apple Silicon chips, a move that reshaped the company’s Mac strategy.

“I am humbled to step into this role, and I promise to lead with the values and vision that have come to define this special place,” Ternus said in a statement accompanying the transition.

AI, costs and new products among challenges ahead

Ternus takes over at a critical point for Apple. Although he inherits a financially strong business, the new CEO faces several significant challenges.

Apple is under growing pressure to strengthen its artificial intelligence capabilities and keep pace with rivals including Google, Meta and OpenAI. Deeper AI integration across Apple’s ecosystem is expected to be a major priority under Ternus.

The company is also facing supply chain pressures, including tight supplies of advanced semiconductors and rising component costs, creating potential challenges for margins.

Ternus will have little time to settle into his new role. His first major public assignment as CEO will be Apple’s annual hardware event on September 9 at Apple Park, where the company is widely anticipated to showcase its first foldable iPhone alongside new wearable initiatives.

With Cook continuing to oversee long-term strategy from the boardroom and Ternus taking responsibility for product and engineering execution, Apple is entering a new era of leadership.

The transition represents more than a change of CEO. It marks the beginning of the post-Cook chapter for one of the world’s most valuable technology companies.