Tim Cook Steps Down as Apple CEO After 15 Years of Transforming the Tech Giant

After being the CEO of Apple Inc. for 15 years full of groundbreaking changes at the firm, Tim Cook is finally announcing his resignation from the post on September 1, 2026. Interestingly, John Ternus, who holds the position of Senior Vice President of Hardware Engineering at Apple, is expected to take up the reins. At the same time, Cook himself will remain an executive chairman.

Indeed, such succession represents a milestone moment both for Apple Inc. and the whole tech industry. While a few years ago, it was unimaginable for Apple to prosper without Steve Jobs at the helm, today it has emerged as one of the most successful business stories of modern times. Moreover, thanks to Cook's leadership, Apple has grown into a company worth four trillion dollars whose revenue has increased fourfold.

As stated in his official farewell speech, Cook described this period of work at the company as his "greatest privilege ever."

The Tim Cook Era: Expanding Apple Beyond Its Roots

Under Cook’s stewardship from 2011 to the present day, Apple has become more than just its groundbreaking products, such as the iPhone and Mac computers. During his tenure, Apple has been developing its ecosystems beyond its traditional areas of competence, transforming its relationship with end-users and customers through its innovative technological achievements.

As opposed to Jobs’ approach, which was associated with dramatic product introductions, Cook concentrated on operational excellence and the development of sustainable strategies, thus making Apple more diverse and durable.

Now let us examine five innovations under the Cook’s leadership.

Apple Watch

While the introduction of Apple Watch was not universally applauded in 2015 when many were skeptical about its use, Cook’s perseverance led to success.

Time would show that the Apple Watch evolved from a premium item to a health-oriented device offering features such as ECG monitoring, blood oxygen levels detection, fall detection, and crash notifications.

This product became immensely popular worldwide and became a huge success and one of Cook’s greatest achievements at Apple.

AirPods

When AirPods first made its debut in 2016, it was ridiculed for being too weird-looking. However, that didn’t last long, and people soon started to embrace it because of its convenience and easy integration.

Thanks to Cook’s management skills and Ternus’s engineering know-how, AirPods would go on to become the best-selling wireless earbuds. They even got enhanced with active noise cancellation technology and over-the-counter hearing aid capability.

AirPods not only became successful but a cultural phenomenon.

Apple Silicon

Among the most audacious actions taken by Cook during his reign is the switch of Apple computers from Intel chips to its own, starting with the M1 processor in 2020.

This change allowed Apple to fully control its hardware and software compatibility, providing unparalleled speed and energy efficiency. The company managed to make their MacBook Air and MacBook Pro the fastest models ever seen in the brand's history.

Currently, Apple silicon drives not only Macs but also iPads, thus changing the entire meaning of the term "performance" in the industry.

iPhone Air

The iPhone Air was an innovative move made by Apple to differentiate itself from other iPhones through a complete redesign that utilized some of Apple's top engineering skills through Ternus.

However, despite all the innovations used, the product was a failure among customers, compelling Apple to reduce production levels to concentrate on its main range of iPhones.

This product may not have been successful, but it demonstrated Apple’s commitment to innovation.

Apple Services

The biggest change brought about by Cook was not a product; rather, it was the whole business model. Apple’s services segment, which includes services like Apple Music, Apple TV+, Apple Pay, iCloud, and the App Store, became a $100 billion-a-year juggernaut.

The move toward a subscription-based model fundamentally altered Apple’s financial structure, making it less reliant on hardware cycles.

In a lot of ways, services are Cook’s legacy at Apple.

Not Every Bet Paid Off

Despite the many successes, even Cook could make mistakes despite his stellar career before coming into leadership. A good example is Apple Vision Pro, which was launched as part of Apple’s move towards mixed reality. However, due to the device’s expensive nature and lack of uses, it did not appeal much to customers.

Nevertheless, such mistakes happened rarely.

The Future Under John Ternus

With John Ternus set to assume control, the company finds itself in a remarkably good situation. With having been instrumental in most of Apple's technological breakthroughs, John Ternus becomes the logical choice to succeed Cook as he comprehends the inner workings of the company.

What remains to be seen is whether John Ternus will follow Cook's legacy in his pursuit to lead Apple through its next wave of innovation.

The time when Tim Cook steps down as the Chief Executive Officer of Apple will be remembered as the end of the most triumphant period in leadership history. It became evident that Apple could not only make it through without Jobs, but flourish like never before.

With diversification across wearables, silicon, services, sustainability, and other areas, Tim Cook managed to turn Apple into a future-ready organization. While John Ternus becomes its new CEO, everyone around the world will be interested to watch what comes next.

It has become clear that the era of Tim Cook was not a continuation of the previous story for Apple. Instead, it was a completely new page.