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Marc Hamburg

Marc Hamburg is the long-time Chief Financial Officer (CFO) of Berkshire Hathaway Inc..

📝 Biography & Role

  • CFO Tenure: Hamburg has served as Berkshire Hathaway's CFO since 1992, having succeeded Verne McKenzie. He has been responsible for the company's financial reporting, taxes, and corporate systems, working closely with Warren Buffett at the Omaha headquarters.
  • Retirement (2025): Announced in the 2025 Letter, Hamburg will retire from Berkshire effective June 1, 2027. He will transition his CFO responsibilities to Chuck Chang on June 1, 2026, and assist with the transition. Buffett praised Hamburg's integrity and judgment: "Marc has been indispensable to Berkshire and to me. His integrity and judgment are priceless."

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📚 Historical Mentions & Citations (1)

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2025 LetterExcerpt Available
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In December, we announced that our CFO, Marc Hamburg, will be retiring from Berkshire effective June 1, 2027, and will transition his Chief Financial Officer responsibilities a year prior on June 1, 2026. Chuck Chang will have an enormous pair of shoes to fill as his successor. Marc will help Chuck settle into his new role before fully enjoying his well-deserved retirement. Marc has been a treasured partner to me, and, as Warren has noted, “Marc has been indispensable to Berkshire and to me. His integrity and judgment are priceless. He has done more for this company than many of our shareholders will ever know.” I strongly echo Warren’s comments.
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