According to Apple and Reuters on April 20 local time, Ternus joined Apple’s product design team in 2001, became vice president of hardware engineering in 2013 and was promoted to senior vice president in 2021. He has overseen development across Apple’s core lineup, including the iPhone, iPad, Mac, Apple Watch and AirPods. He studied mechanical engineering at the University of Pennsylvania and previously worked as a mechanical engineer at Virtual Research Systems.
The appointment is widely seen as an internal succession that preserves Apple’s operating approach. Bloomberg last month identified Ternus as a leading contender to succeed Cook.
Apple highlighted Cook’s record. The company said its market value rose during his tenure to $4 trillion from about $350 billion, and annual revenue increased to more than $416 billion in fiscal 2025 from $108 billion in fiscal 2011. The number of countries operating Apple Stores more than doubled, and active devices topped 2.5 billion. Cook expanded Apple beyond an iPhone-centered business into a platform company spanning services, semiconductors and wearables.
Wall Street’s reaction was largely muted. Rick Meckler, a partner at Cherry Lane Investments, told Reuters that “Cook has done an amazing job,” adding that he is expected to keep playing a role in major strategy as chairman. Jacob Bourne of eMarketer said the plan for Cook to remain CEO through September before moving to chairman should provide investors some reassurance.
Still, Apple faces a tougher environment as Ternus takes over. While the company remains highly profitable with strong brand loyalty, it is seen as trailing rivals such as OpenAI and Google in artificial intelligence. In Ternus’ first year, Apple is expected to face simultaneous demands to revamp Siri, refresh the iPhone lineup and strengthen AI features.
Reuters described the choice as a signal that Apple intends to maintain its consumer-hardware identity even as AI competition intensifies. Bourne said Ternus’ hardware engineering background “shows that Apple’s commitment to consumer hardware isn’t going away.”
Even so, AI is likely to be the defining test of Ternus’ leadership. Reuters noted Apple is dealing with delays in its Siri overhaul and controversy over reliance on outside AI. Early judgments are expected to hinge on how smoothly Apple integrates AI into the iPhone, Mac and wearables, and whether it can build a stronger presence in AI platforms beyond its hardware strengths.
The stock reaction was limited. Reuters reported Apple shares fell less than 1% in after-hours trading following the announcement. In regular U.S. trading on April 20, the stock closed up 1.04% at $273.05.
* This article has been translated by AI.
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