Buffett has sung Cook's praise in the past, too. In his 2021 letter to Berkshire shareholders, he wrote, "Tim Cook, Apple's brilliant CEO, quite properly regards users of Apple products as his first love, but all of his other constituencies benefit from Tim's managerial touch as well."

The investing world woke up to the end of an era on Saturday, May 3, when Warren Buffett, the legendary CEO of Berkshire Hathaway, announced he will officially step down at the end of 2025 after more than six decades leading the $1.

Warren Buffett’s Berkshire Hathaway Inc. slashed its exposure to big-bank shares in the first quarter, liquidating its position in Citigroup Inc. and trimming positions in Bank of America Corp. and Capital One Financial Corp.