Apple CEO Tim Cook dinner holds an iPhone 17 professional and an iPhone air, as Apple holds an occasion on the Steve Jobs Theater on its campus in Cupertino, California, U.S. Sept. 9, 2025.
Manuel Orbegozo | Reuters
Apple introduced on Monday that CEO Tim Cook dinner might be changed by John Ternus. Executives throughout the tech business and past started reacting to the transition shortly after the information broke.
Cook dinner has served because the iPhone maker’s CEO for practically 15 years, after late founder Steve Jobs resigned in 2011.
“Tim Cook dinner is a legend,” OpenAI CEO Sam Altman posted on X. “I’m very grateful for every thing he has carried out and I’m very grateful for Apple.”
Apple and OpenAI first partnered in 2024, integrating ChatGPT into Siri and Apple’s writing instruments.
Palmer Luckey, founding father of Oculus VR, additionally posted on X, writing “RIP Tim Apple,” referring to the well-known White Home incident with President Donald Trump in 2019.
Trump mistakenly addressed Cook dinner as “Tim Apple” throughout his first time period. Cook dinner made gentle of the comment, changing his final identify with the Apple emblem on his Twitter profile.
Luckey left Fb in 2017 and based protection contractor Anduril later that 12 months.
Warren Buffett, chairman of Berkshire Hathaway, instructed CNBC’s Becky Fast that “Apple wouldn’t be the Apple of immediately with out Tim Cook dinner.”
“What he has carried out with Apple couldn’t be carried out by anyone I’ve identified,” Buffett mentioned. Apple is Berkshire Hathaway’s largest shareholding.
“Overlaying the world and getting together with nations with all types of histories and doing proper by the client, individuals who labored for him, definitely the shareholders, which we had been fortunate sufficient to be one in all… he is one in all a sort,” Buffett mentioned.
Ternus, at the moment a senior vice chairman of {hardware} engineering, will change into CEO efficient Sept. 1. Cook dinner will then assume the function of government chairman.

