John Ternus is the chief executive officer of Apple, a post he took up on September 1, 2026 in succession to Tim Cook, who became executive chairman. Before becoming CEO he was Apple's senior vice president of Hardware Engineering. Apple announced the succession on April 20, 2026 (Source: apple.com). He took over a company whose flagship AI product, the rebuilt Siri, runs on models licensed from Google rather than developed in-house.
| Position | Chief executive officer, Apple (from September 1, 2026); member of the board of directors (same date) |
| Previous role | Senior vice president of Hardware Engineering, Apple (2021–2026) |
| Joined Apple | 2001 (product design team) |
| Education | B.S. in mechanical engineering, University of Pennsylvania |
Background
Ternus joined Apple's product design team in 2001 after working as a mechanical engineer at Virtual Research Systems. He became a vice president of Hardware Engineering in 2013 and joined the executive team in 2021 as senior vice president of Hardware Engineering, leading the company's hardware engineering organization. Apple credits him with a role in introducing the iPad and AirPods product lines and many generations of iPhone, Mac, and Apple Watch, including the iPhone Air and the MacBook Neo, and with work on product durability, recycled-aluminum and 3-D-printed titanium materials, and repairability (Source: apple.com).
In a 2023 CNBC interview alongside chip chief Johny Srouji, Ternus described the hardware approach in terms of components: "If we build the right products with the right components within them, right silicon and other technologies, people love them" (Source: cnbc.com).
Succession
Apple announced on April 20, 2026 that Cook would become executive chairman and Ternus chief executive, both effective September 1, 2026, in a transition the board approved unanimously. Cook remained CEO through the summer and, as executive chairman, was to assist with "engaging with policymakers around the world". Arthur Levinson, non-executive chairman for 15 years, became lead independent director on the same date. Ternus said he had been "lucky to have worked under Steve Jobs and to have had Tim Cook as my mentor" (Source: apple.com). Apple's first earnings report after the announcement, for the March quarter, was released on April 30, 2026 and showed iPhone revenue up 22% year over year to nearly $57 billion (Source: theinformation.com).
Ternus made few public appearances between the announcement and the handover. On the July 30, 2026 earnings call, asked about the competitive landscape, he said he would "reiterate what Tim said" and that "there is so much opportunity for us with everything that's happening in this space" (Source: cnbc.com). He attended Apple's June 23, 2026 enterprise-customer event at Apple Park, Business at the Park, with Cook and Anthropic co-founder Jared Kaplan, at a time when AI labs and developers were buying Mac minis and Mac Studios for AI workloads (Source: theinformation.com). CNBC reported that Ternus, then 51, became the second Apple CEO since Steve Jobs left in 2011 (Source: cnbc.com).
AI strategy inherited as CEO
Ternus inherited the arrangement Apple and Google announced on January 12, 2026, under which Apple Foundation Models are based on Google's Gemini models, with Apple reported to pay roughly $1 billion a year for a custom Gemini to power the rebuilt Siri (Source: pymnts.com). Constellation Research described Apple's approach as "capex-light", renting AI capability from partners while Meta, Alphabet, and Microsoft each spend well over $100 billion a year on infrastructure. On Cook's final earnings call as CEO, on July 30, 2026, Cook said "we'll see what Siri AI does from the cost side of it", leaving the compute bill for the new assistant as an open question for his successor (Source: pymnts.com). CNBC also listed a global memory-chip shortage, driven by demand for AI chips and servers, which had already forced Apple to raise MacBook and iPad prices in June 2026 (Source: cnbc.com).
At his first keynote as CEO, the "Surprise and Shine" event at Apple Park on September 9, 2026, Ternus opened by arguing that the iPhone is the best personal device for artificial intelligence and offers strong privacy protections. He introduced the iPhone 18 Pro with the AI-enhanced Siri and Apple's first foldable phone, the iPhone Duo (Source: cnn.com; cnbc.com). In Apple's announcement he said the Duo "shows what's possible when hardware and software are engineered together" (Source: apple.com).
Commentary
Stratechery's Ben Thompson, in "Tim Cook's Impeccable Timing" (April 21, 2026), called the timing of Cook's exit "prudent". He wrote that the largest question Cook leaves his successor is what impact AI will have on Apple, since Apple has avoided spending hundreds of billions of dollars on the AI buildout and the new Siri will have Google's technology at its core. Thompson wrote that he hoped Ternus "was heavily involved in the decision" to rely on Gemini and that "he should have made it" (Source: stratechery.com). A subscriber follow-up the next day argued that Ternus's elevation "suggests that Apple's future is about hardware differentiation" and linked it to the SpaceX–Cursor deal (Source: stratechery.com; only the article's summary line is publicly readable). In the April 21 article Thompson set out two possible outcomes: one in which Apple profits from AI by selling the devices people use to reach commoditized models, and one in which AI disrupts Apple's integrated model in favor of companies that invested in the technology (Source: stratechery.com; cf. AI Hardware Devices, humanoids, on-device AI).
Gene Munster of Deepwater Asset Management told CNBC that choosing "a product person" was important and that Ternus needs to "light up recruiting" (Source: cnbc.com).
Apple–OpenAI hardware dispute
Ternus's former hardware division was the source of much of the talent OpenAI recruited for its consumer-device effort. Bloomberg's Mark Gurman reported on July 11, 2026, the day after Apple filed its trade-secrets suit against OpenAI, that OpenAI chief hardware officer Tang Tan had a strained relationship with Ternus and that most of the roughly 400 former Apple employees at OpenAI came from Ternus's division (Source: bloomberg.com; the article body is paywalled and this account rests on its summary). See Apple v. OpenAI (trade secrets).
Relationships
- leads: Apple — chief executive officer from September 1, 2026; previously SVP of Hardware Engineering
- related: Tim Cook — predecessor as Apple CEO; executive chairman from September 1, 2026
- depends-on: Google DeepMind — Gemini models underpin the Siri AI he inherited
- related: Apple v. OpenAI (trade secrets), OpenAI, Ben Thompson, AI Hardware Devices, Edge AI / Private Physical AI