Berkshire Hathaway vs IBM: Founders, CEOs and History

Company facts

Founders

CEOs and their tenures

Timeline: Berkshire Hathaway and IBM side by side

1. 1839Berkshire Hathaway

   Valley Falls Company Founded

   Oliver Chace founds the Valley Falls Company in Valley Falls, Rhode Island, as a cotton textile manufacturer. Chace had learned the trade working with Samuel Slater and built his first mill in 1806.

2. 1911IBM

   Computing-Tabulating-Recording Company Founded

   Charles Ranlett Flint merged the Tabulating Machine Company, International Time Recording Company, Computing Scale Company, and Bundy Manufacturing Company to form CTR - the company that would become IBM.

3. 1924IBM

   Renamed to International Business Machines

   Under Thomas J. Watson Sr. CTR was renamed International Business Machines Corporation (IBM), reflecting the company's growing international presence and ambition beyond tabulating machines.

4. 1952IBM

   IBM 701 - First Commercial Computer

   IBM launched the 701, its first commercially available electronic computer, marking the company's decisive entry into the electronic computing era and beginning its dominance of the mainframe market.

5. 1955Berkshire Hathaway

   Berkshire Fine Spinning and Hathaway Manufacturing Merge

   Berkshire Fine Spinning Associates and Hathaway Manufacturing combine and take the Berkshire Hathaway name.

6. 1962Berkshire Hathaway

   Buffett Partnership Buys Its First Berkshire Shares

   Buffett Partnership Ltd. buys its first Berkshire Hathaway shares in December 1962. Buffett was drawn to the pattern of Berkshire closing plants and using the liquidation proceeds to repurchase its own stock.

7. 1964Berkshire Hathaway

   Tender Offer Dispute With Seabury Stanton

   Berkshire president Seabury Stanton asks Buffett at what price Buffett Partnership would sell, agrees to $11.50 a share, then mails a tender offer at $11.375.

8. 1964IBM

   System/360 Launch

   IBM launched the System/360, a compatible family of computers spanning all price points. The $5 billion investment was the largest privately funded project at the time and established the mainframe industry standard for decades.

9. 1965Berkshire Hathaway

   Buffett Takes Control and Names Ken Chace President

   Buffett Partnership takes control of Berkshire Hathaway in May 1965 and Stanton leaves. Buffett selects Ken Chace, a long-time employee, as president to run the textile operation, and the cash it generates is pointed at other industries.

10. 1967Berkshire Hathaway

    Entry Into Insurance With National Indemnity

    Early in 1967 Berkshire pays $8.6 million to buy National Indemnity Company and a small sister insurer from owner Jack Ringwalt.

11. 1972Berkshire Hathaway

    See's Candies Bought for $25 Million

    Blue Chip Stamps, controlled by Buffett and Munger and later merged into Berkshire, buys See's Candies for $25 million.

12. 1981IBM

    IBM Personal Computer Launch

    IBM introduced the IBM PC, which standardized personal computing architecture and created the PC industry. The open architecture decision inadvertently created the Wintel duopoly that would ultimately commoditize IBM's own PC business.

13. 1985Berkshire Hathaway

    Textile Operations Closed

    Buffett decides in July 1985 to close Berkshire's textile operation and the shutdown is largely complete by year end. He described it as finally throwing in the towel after twenty years of unremitting struggle with the business.

14. 1993IBM

    Lou Gerstner Arrives - Turnaround Begins

    Louis V. Gerstner Jr. Became CEO as IBM posted $8 billion in losses. His decision to keep IBM intact rather than break it up, and to pivot toward services, saved the company and redefined its business model for the next two decades.

15. 1996Berkshire Hathaway

    GEICO Becomes Wholly Owned and Class B Shares Created

    Berkshire buys the remaining 49% of GEICO on January 2, 1996, having held 51%, and GEICO becomes a wholly owned subsidiary. Shareholders also approve a recapitalization creating Class B shares with the economic rights of one thirtieth of a Class A share.

16. 1997IBM

    Deep Blue Defeats Kasparov

    IBM's Deep Blue supercomputer defeated world chess champion Garry Kasparov, becoming the first computer to beat a reigning world champion in a full match and establishing IBM's brand in artificial intelligence.

17. 1998Berkshire Hathaway

    General Re and Executive Jet Acquired

    Berkshire acquires reinsurer General Re and fractional-aircraft operator Executive Jet.

18. 2010Berkshire Hathaway

    BNSF Railway Acquired

    Berkshire completes its purchase of Burlington Northern Santa Fe in the first quarter of 2010.

19. 2016Berkshire Hathaway

    Precision Castparts Acquired

    Berkshire completes the purchase of Precision Castparts, an aerospace and industrial components maker, for $235 a share in cash.

20. 2018Berkshire Hathaway

    Abel and Jain Named Vice Chairmen

    Berkshire's board expands from twelve to fourteen directors and elects Greg Abel and Ajit Jain.

21. 2019IBM

    Red Hat Acquisition Closes

    IBM completed the $34 billion acquisition of Red Hat, the largest software acquisition in history at the time. The deal anchored IBM's hybrid cloud strategy and provided the OpenShift platform as the foundation for enterprise Kubernetes.

22. 2021IBM

    Kyndryl Spinoff

    IBM spun off its managed infrastructure services business as Kyndryl Holdings, removing approximately $19 billion in low-margin revenue to focus the remaining company on higher-margin software and consulting.

23. 2022Berkshire Hathaway

    Alleghany Corporation Acquired

    Berkshire completes the acquisition of insurer Alleghany Corporation on October 19, 2022, paying $848.02 a share in cash for a total equity value of about $11.6 billion and adding the TransRe reinsurance business.

24. 2023IBM

    Watsonx Platform Launch

    IBM launched watsonx, its enterprise AI and data platform combining foundation models (Granite), data management (watsonx.data), and AI governance (watsonx.governance). The platform represents IBM's AI strategy for the generative AI era.

25. 2024Berkshire Hathaway

    Market Value Tops $1 Trillion

    Berkshire's market capitalization passes $1 trillion on August 28, 2024, making it the first US company outside the technology sector to reach that level.

26. 2024Berkshire Hathaway

    Pilot Travel Centers Fully Owned

    Berkshire acquires the remaining 20% of Pilot Travel Centers on January 16, 2024 and takes full ownership. It had bought 38.6% in 2017 and a further 41.4% for about $8.2 billion in January 2023.

27. 2025Berkshire Hathaway

    Board Approves Abel as CEO From January 2026

    Berkshire announces in May 2025 that Greg Abel will become President and Chief Executive Officer on January 1, 2026, with Warren Buffett remaining Chairman of the Board.

28. 2026Berkshire Hathaway

    Abel Becomes CEO and Buffett Becomes Chairman Emeritus

    Abel takes over as CEO on January 1, 2026 and Berkshire completes the $9.7 billion purchase of OxyChem from Occidental on January 2. On September 18, 2026 Buffett is named Chairman Emeritus and remains a director, and his son Howard G.

29. 2026IBM

    Confluent Acquisition Closes

    IBM completed its roughly $11 billion acquisition of Confluent, adding real-time data streaming used by more than 6,500 enterprises to its AI and hybrid cloud software.

Acquisitions

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