Tim Cook reactions: Sam Altman, Palmer Luckey, Warren Buffett react to Apple CEO move

Apple declared Monday that CEO Tim Cook will be stepping down, assuming the role of executive chairman on Sept. 1.

Cook, who served as CEO for nearly 15 years, will be replaced by John Ternus.

OpenAI CEO Sam Altman and Anduril CEO Palmer Luckey reacted to the announcement on X, with Warren Buffett also commenting.

Apple declared on Monday that CEO Tim Cook will be replaced by John Ternus. Executives across the tech industry and beyond began reacting to the transition shortly after the news broke.

Cook has served as the iPhone maker’s CEO for nearly 15 years, after late founder Steve Jobs resigned in 2011.

“Tim Cook is a legend,” OpenAI CEO Sam Altman posted on X. “I am very thankful for everything he has done and I am very thankful for Apple.”

Apple and OpenAI first partnered in 2024, integrating ChatGPT into Siri and Apple’s writing tools.

Palmer Luckey, founder of Oculus VR, also posted on X, writing “RIP Tim Apple,” referring to the famous White House incident with President Donald Trump in 2019.

Trump mistakenly addressed Cook as “Tim Apple” during his first term. Cook made light of the remark, replacing his last name with the Apple logo on his Twitter profile.

Warren Buffett, chairman of Berkshire Hathaway, told CNBC’s Becky Quick that “Apple would not be the Apple of today without Tim Cook.”

“What he has done with Apple could not be done by anybody I’ve known,” Buffett noted. Apple is Berkshire Hathaway’s largest shareholding. This also touches on aspects of bull market.

“Covering the earth and getting along with countries with all kinds of histories and doing right by the customer, individuals who worked for him, certainly the shareholders, which we were lucky enough to be one of… he’s one of a kind,” Buffett noted.

Ternus, currently a senior vice president of hardware engineering, will become CEO effective Sept. 1. Cook will then assume the role of executive chairman.

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