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ENTITY
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Tim Cook

Origin of Relationship

Tim Cook became relevant to the Berkshire story when Berkshire began building its massive Apple position in 2016. Buffett publicly praised Cook's stewardship repeatedly, and Cook has attended multiple annual meetings as a guest. By 2025, the Apple position had made Berkshire more money than any investment in its history.

Major Milestones

  • 2011: Takes over as Apple CEO after Steve Jobs' death, handpicked by Jobs
  • 2016: Berkshire begins accumulating Apple shares; Cook's operational excellence and capital allocation (especially buybacks) make Apple Berkshire's most profitable investment
  • 2024: Cook attends 2024 annual meeting; Buffett calls Apple "an even better business" than Coca-Cola or American Express
  • 2025: Cook again in attendance at the 2025 meeting; Buffett introduces him publicly and states: "Tim Cook has made Berkshire a lot more money than I've ever made Berkshire Hathaway"; notes Cook spent ~$100B/year on share repurchases (now subject to 1% excise tax costing ~$1B/year)

Strategic Importance

Tim Cook represents Buffett's evolution on technology investing and his deepening appreciation for capital allocation skill in operating managers. Buffett drew an explicit parallel between the Jobs→Cook succession and the Buffett→Abel succession: "Nobody but Steve could have created Apple, but nobody but Tim could have developed it as he has." This framing — founder-creator succeeded by operator-developer — became the template for how Buffett explained his own succession to Greg Abel.

Cook also exemplifies the power of share repurchases at scale. Apple's aggressive buyback program, reducing share count dramatically while business value compounded, was the mechanism through which Berkshire's ownership percentage grew even without buying additional shares — a living demonstration of Share Repurchases as value creation.

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