After 15 years as CEO, Tim Cook is stepping down from Apple, leaving behind a legacy defined by massive financial growth, hardware innovation, and several high-profile product challenges.

Key Points

• Tim Cook is being succeeded as CEO by John Ternus, the company’s former hardware leader.
• Under Cook, Apple became the first U.S. company to reach a $1 trillion market cap, eventually surpassing $4 trillion.
• Major successes included the expansion of the services division, the transition to custom Apple silicon, and the launch of the Apple Watch and AirPods.
• Significant setbacks included the cancellation of the $10 billion "Project Titan" car initiative and the underwhelming market performance of the Vision Pro headset.
• The company faced ongoing regulatory scrutiny regarding App Store policies and struggled with the delayed rollout of AI-enhanced Siri features.
• Cook maintained a strong stance on user privacy, notably refusing to build backdoors into encrypted devices for government agencies.

Why it Matters

Cook’s tenure transformed Apple from a hardware-focused company into a diversified services and health-tech powerhouse that dominates global market valuations. His departure marks a pivotal transition for the tech giant as it navigates increasing regulatory pressure and the need to successfully integrate artificial intelligence into its core product ecosystem.