Tim Cook will step down as Apple’s chief executive officer in September 2024, transitioning to a new role as executive chairman, the company announced on Monday. The leadership change, unanimously approved by Apple’s board of directors, will unfold over several months, according to Apple.

John Ternus, currently senior vice president of hardware, will become Apple’s next CEO. Cook’s departure concludes more than a decade leading the technology giant, marking the end of a significant era for the company.

Cook’s Journey to the Top

Cook joined Apple in 1998 and served as chief operating officer, stepping in as temporary CEO multiple times before officially taking the helm in August 2011. His appointment followed the resignation of Steve Jobs, who was battling cancer at the time. Jobs passed away later that year, leaving Cook to guide Apple through a pivotal transition.

Under Cook’s leadership, Apple expanded its global presence to more than 200 countries and territories, introduced new hardware product lines, and achieved unprecedented financial growth. Shareholders witnessed Apple’s market capitalization surge from $350 billion to $4 trillion, while revenue nearly quadrupled during his tenure.

Five Key Ways Tim Cook Redefined Apple

1. Forging Apple’s Post-Jobs Identity

When Cook became CEO in 2011, skepticism lingered about Apple’s ability to thrive without its iconic cofounder. “The problem here isn’t the operations of Apple and their ability to execute and keep doing what they’ve been doing,” one analyst told The New York Times shortly after Jobs’ resignation. “The problem, really at the core… is that Steve Jobs’s inspiration is irreplaceable.”

Despite these doubts, Apple maintained its status as a technology leader under Cook. While the company no longer produces revolutionary products like the original iPhone, it has introduced popular hardware such as the Apple Watch, AirPods, and the Vision Pro virtual reality headset. Cook also oversaw the discontinuation of the iPod in 2022.

Though Cook never cultivated a cult-like following like Jobs, his impact is evident in Apple’s financial performance. Since 2011, the company’s stock price has surged from about $13 to over $250.

2. Expanding Apple’s Services Ecosystem

Under Cook, Apple significantly grew its services business, creating a tightly integrated software and app ecosystem. While older services like iTunes and iBookstore have been rebranded or discontinued, Apple has built a robust consumer software empire that includes Apple Music, Apple Podcasts, and Apple Fitness. In recent months, the company’s Services division achieved an all-time revenue record.

Apple also launched Apple TV+ in 2019, which has since become a major streaming service driven by celebrity-driven content. Popular shows include the space drama For All Mankind, the psychological sci-fi hit Severance, and the drama The Morning Show.

Throughout this expansion, Apple navigated antitrust scrutiny and allegations of anticompetitive behavior, particularly regarding the App Store, while continuing to grow its services revenue.