Following a 15-year tenure, Tim Cook has stepped down as Apple’s chief executive, passing the baton to John Ternus, the former senior vice president of hardware engineering. As of Tuesday, Ternus officially takes the reins of one of the planet’s most valuable enterprises. However, unless you follow Apple very closely, you might not recognize his name, as he largely stayed behind the scenes until his appointment as Cook’s successor was revealed in April.
Ternus steps into the top job at a pivotal moment for the tech giant. Next week, the firm will host its annual iPhone unveiling, introducing its latest generation of devices. Additionally, Apple is gearing up to release its revamped Siri AI capabilities, which are driven by Google’s Gemini technology.
“I feel immense peace of mind passing leadership to someone as brilliant, wonderful, and capable as John,” Tim Cook shared in a note to employees on his final day as CEO. “Few individuals grasp the nuances of crafting world-changing products the way John does, and I couldn’t be more thrilled for his stewardship.”
Cook will continue at Apple in the capacity of executive chairman.
How long has John Ternus worked at Apple?
Ternus has spent roughly half his lifetime at Apple—at 51 years of age, his journey with the organization spans 25 years.
He entered Apple’s product design unit in 2001 straight out of college, marking only his second professional gig (his first was at Virtual Research Systems, a boutique virtual reality startup). By 2013, Ternus held a vice president title within hardware engineering before earning promotion to senior vice president in 2021.
Being 15 years junior to Cook, Ternus was among the youngest contenders whispered about as a potential successor, suggesting Apple wanted a leader for the long haul. Considering the company has seen only two chief executives throughout the current millennium, leadership stability clearly remains a priority.
Previously, Ternus answered directly to Cook—whom he views as a mentor—and oversaw Apple’s entire hardware engineering division. That responsibility is massive for a corporation defined by ubiquitous hardware staples like the MacBook and iPhone.
During his 2024 commencement address at his alma mater, the University of Pennsylvania’s engineering department, Ternus reflected on lessons gleaned during his tenure at Apple, offering a window into his personal philosophy.
“Always believe you’re as bright as anyone in the room, but never assume you possess as much knowledge as they do,” Ternus advised during the address. “This mindset grants you the assurance needed to press forward, alongside the necessary modesty to ask questions.”
Within a tech sector overflowing with oversized egos, hearing Ternus emphasize modesty is a welcome shift. What’s more, he only recently signed up for X!
What projects did John Ternus lead at Apple?
Ternus’s inaugural assignment at Apple involved inspecting components for the Apple Cinema Display, an early desktop screen.
“During my first year, I wound up at a parts vendor facility far from home. Past midnight, I sat counting threads on a screw head using a magnifying glass… bickering with the supplier because these pieces featured 35 grooves instead of the specified 25,” Ternus recalled during his graduation speech. “I vividly remember pausing and wondering, ‘What on earth am I doing here? Is this normal?’”
As Ternus moved up the corporate ranks, his workload expanded. While he might spend less time inspecting hardware screws today, he clearly retains a passion for meticulous craftsmanship. During a recent interview, when asked about his standout memory of Steve Jobs, he highlighted the late co-founder’s dedication to precise detailing.
“[Jobs] was shifting a piece of furniture—a set of drawers—away from the wall, checking the rear side and marveling at how the craftsman made it gorgeous,” Ternus noted. “The back was finished with the same care as the visible portions, even though nobody would ever look at it. I think about that constantly because it captures the exact essence of our work here.”
From there, he spearheaded hardware development across the broader Apple lineup, overseeing releases like the Apple Watch, AirPods, and Vision Pro. He also played a key part in critical engineering shifts, such as moving away from Intel processors toward proprietary Apple silicon.
Most recently, Ternus contributed to creating the MacBook Neo, a budget-friendly laptop designed to reduce expenses via clever hardware choices, such as utilizing an iPhone processor to run the machine.
“We refuse to ship subpar items. We aim to deliver exceptional products carrying that distinct Apple quality and experience. Achieving that with the Neo meant engineering something entirely fresh from scratch… combining technologies we’ve cultivated like Apple silicon with the deep expertise gained through years of manufacturing Macs, phones, and iPads,” Ternus explained to Tom’s Guide.
In his new role as CEO, Ternus must guide Apple through the fierce artificial intelligence race while finding a strategic direction for the underlying tech fueling the Vision Pro.
What else do we know about John Ternus?
Back at Penn, Ternus swam competitively on the varsity team. For his undergraduate capstone project, he engineered a motorized feeding mechanism operated via head motions for quadriplegic individuals.
Public campaign contribution records show Ternus contributed $2,900 to Senator Chuck Schumer (D-NY) back in 2021.
Beyond these details, Ternus has kept a remarkably low profile.
This story was originally published on April 20, 2026, and has been updated to reflect Ternus officially stepping into the CEO position.
