Tim Cook Steps Down as Apple CEO Tomorrow
John Ternus officially replaced Tim Cook as Apple CEO on September 1, 2026. Cook, who announced his departure in April, remains with the company as executive chairman of the board. Under Cook's 15-year leadership since 2011, Apple's valuation grew from approximately $350 billion to about $4.6 trillion. Ternus, a former hardware engineering lead, takes over just before Apple's September 9 event and the launch of the iPhone 18 Pro. He now leads the company during a period of speculation regarding new hardware releases.
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- ✓ John Ternus became Apple CEO on September 1, 2026.
- ✓ Tim Cook served as CEO for 15 years starting in 2011.
- ✓ Tim Cook now serves as executive chairman of the board.
- ✓ Apple's valuation grew from roughly $350 billion to about $4.6 trillion under Cook's leadership.
What changed
Confirmed that Cook announced his departure in April and grew the company's valuation to about $4.6 trillion during his tenure.
Live updates
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John Ternus assumes Apple CEO role as Tim Cook becomes Executive Chairman
John Ternus officially replaced Tim Cook as Apple CEO on September 1, 2026. Cook, who announced his departure in April, remains with the company as executive chairman of the board. Under Cook's 15-year leadership since 2011, Apple's valuation grew from approximately $350 billion to about $4.6 trillion. Ternus, a former hardware engineering lead, takes over just before Apple's September 9 event and the launch of the iPhone 18 Pro. He now leads the company during a period of speculation regarding new hardware releases.
Why it matters
Ternus previously led Apple's transition to custom silicon and oversaw major hardware engineering breakthroughs. This transition shifts leadership from a long-term executive to a technical specialist. The timing coincides with one of the company's most significant annual product cycles.
What is confirmed
- John Ternus became Apple CEO on September 1, 2026.
- Tim Cook served as CEO for 15 years starting in 2011.
- Tim Cook now serves as executive chairman of the board.
- Apple's valuation grew from roughly $350 billion to about $4.6 trillion under Cook's leadership.
Still unconfirmed
- Ternus faces challenges that will force him to step outside his comfort zone in hardware engineering.
- Ternus's rise was driven by a unique cross-functional collaboration philosophy and his role in the transition to custom silicon.
What to watch next
- Apple product event on September 9
- Launch of the iPhone 18 Pro
confidence 100%Sources used for this update (10)
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John Ternus Becomes Apple CEO as Tim Cook Transitions to Executive Chairman
John Ternus, formerly the head of hardware engineering, takes over as Apple CEO on September 1, 2026. Tim Cook steps down from the chief executive role after 15 years of leadership, having served in the position since 2011. Cook will remain with the company as the executive chairman of the board of directors. This leadership change occurs just before a scheduled Apple event on September 9 and the launch of the iPhone 18 Pro.
Why it matters
The transition marks the first change in Apple's top leadership since Cook succeeded Steve Jobs. Ternus is a low-key engineer tasked with guiding the company's strategy in the artificial intelligence race.
What is confirmed
- Tim Cook served as Apple CEO for 15 years starting in 2011.
- John Ternus takes over as Apple CEO on September 1.
- Tim Cook will remain at Apple as executive chairman of the board of directors.
- John Ternus previously served as the company's hardware engineering chief.
- Apple has an event scheduled for September 9.
Still unconfirmed
- The leadership transition occurs ahead of an iPhone 18 Pro launch.
What to watch next
- The Apple event on September 9
- John Ternus's first official strategic directives regarding AI
confidence 100%Sources used for this update (11)
- Financial Times — Tim Cook’s legacy by the numbers
- Fortune — Apple’s John Ternus era: Can a low-key engineer win the AI race?
- The Washington Post — Opinion | Tim Cook was the real genius at Apple
- www.macrumors.com — Tim Cook Steps Down as Apple CEO Tomorrow
- 9to5mac.com — Today is Tim Cook’s last day as Apple CEO, John Ternus takes over tomorrow
- 9to5mac.com — Read Tim Cook’s full memo to Apple employees on his last day as CEO
- MacRumors — Tim Cook Steps Down as Apple CEO Tomorrow
- Yahoo Finance — What Tim Cook told employees on his last day at Apple
- www.macrumors.com — Tim Cook Comments on His Final Day as Apple CEO
- www.gsmarena.com — Tim Cook steps down as CEO of Apple, John Ternus takes over
- www.digit.in — Tim Cook steps down as Apple CEO after 15 years, shares emotional post ahead of iPhone 18 Pro launch
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