Apple has put John Ternus in the chief executive role, marking a major leadership handoff at one of the world’s most closely watched technology companies.

The change is now reflected on Apple’s leadership page, according to the company as reported by MacRumors. Ternus, Apple’s former hardware engineering chief, joined the company in 2001 and rose through its hardware ranks before becoming vice president of hardware engineering in 2013 and senior vice president of hardware engineering in 2021.

The move ends Tim Cook’s 15-year run as chief executive. Apple said Cook is now executive chairman of the board and will continue to help the company on select matters, including engagement with policymakers around the world.

The handover places a longtime hardware leader in charge at a moment when Apple remains under pressure to keep its product pipeline moving while navigating global regulation, supply-chain risk and competition across smartphones, wearables and personal computing. The company has not publicly framed the leadership change as part of a broader overhaul, but the succession itself is notable because it elevates an executive known for product and engineering execution rather than a public-facing sales or operations role.

Ternus is 51, which means he could hold the job for a substantial period if Apple keeps him in place through a normal retirement horizon. The source notes that could make for a 10- to 15-year tenure. Whether that proves accurate will depend on Apple’s board, the company’s performance and the next phase of the firm’s product strategy.

Cook’s transition to executive chairman also suggests Apple is keeping continuity at the top rather than replacing the outgoing chief with an outsider. The company said Cook will assist with certain aspects of the business, including engagement with policymakers. That could give Apple an experienced public-policy voice while allowing Ternus to set the agenda for product, engineering and operations.

Cook’s final day as CEO also included a visit to the Apple Park Visitor Center in Cupertino, where he met retail employees from several stores, according to the report. Apple had already prepared for a gradual handoff after Cook shared a letter to the Apple community in April, but the leadership page update makes the change official.

For Apple investors, suppliers and rival technology firms, the succession closes one chapter and opens another. Cook guided Apple through years of enormous scale, but the company now turns to a leader whose career has been built largely inside the hardware organisation that helped define its modern identity.