Warren Buffett Watch

Alex Crippen

Senior Coordinating Producer

Alex Crippen is senior coordinating producer at CNBC.com. He started with CNBC television in 1990. Crippen began his media career in affiliate TV and news radio. He holds a degree in economics from Wesleyan University.

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    Warren Buffett's Berkshire Hathaway reveals in an SEC filing today that it has bought almost 30,000 additional shares of the freight railroad Burlington Northern Santa Fe.  While this most recent purchase is relatively small, it is Buffett's first Burlington buy since October.

  • Central Park and midtown Manhattan are shown in this aerial view Wednesday, Aug. 29, 2007, in New York. (AP Photo/Mark Lennihan)

    Warren Buffett's brand-new municipal bond insurer, Berkshire Hathaway Assurance Corporation, has sold its first coverage, backing a $10 million bond issued by New York City yesterday.  Ajit Jain, who runs Berkshire's insurance businesses, tells the New York Times, "We're tip-toeing into the market, doing very small deals. We want to see if we can get the pricing that we find acceptable to us. Once we find this is real, we'll put in a lot more capital." He also describes how a call from a New York regulator played a key role.

  • The man who oversees the insurance operations for Warren Buffett's Berkshire Hathaway tells CNBC that Berkshire is talking with troubled bond insurers like MBIA and Ambac about a possible partnership or purchase, although it doesn't sound like anything major is imminent.  Ajit Jain's comment came in response to a question from Erin Burnett in a live interview on CNBC's Street Signs about why Berkshire chose to "build" its own bond insurer rather than buy an existing company like Ambac or MBIA.

  • Warren Buffett, right, chairman of Berkshire Hathawy Inc., speaks to the media while Ron Ferguson, chairman and chief executive officer of General Re, listens in New York on Friday, June 19, 1998. Berkshire Hathaway Inc. is buying General Re for $22 billion worth of stock, adding one of the world's leading insurers of insurance companies to its portfolio. Berkshire announced Friday after the stock market closed that it would let General Re operate independently of its other insurance operations,

    A criminal corporate fraud trial that could bring Warren Buffett to the witness stand for some tough questioning is now underway in a federal courthouse in Hartford, Connecticut.  Emphasis on could.  Here's why I have my doubts.

  • Berkshire Hathaway chairman Warren Buffett plays the ukelele at the Fruit of the Loom stand at the Qwest Center in Omaha, Neb., while touring exhibits prior to the annual Berkshire Hathaway shareholders meeting, Saturday, April 30, 2005. (AP Photo/Nati Harnik)

    Warren Buffett Watch's year-end countdown of the top 10 trends and events of the year continues with #5 to #1, including some year-end surprises.

  • In a live interview this morning on CNBC's Squawk Box, Warren Buffett called his purchase of a big Marmon stake as a "bet on America over a long time." He also revealed that while he has been approached by financials companies about buying a stake, "we have not seen a deal that causes me to start salivating."  Here is a video clip and transcript of the complete interview.

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    Warren Buffett is finally moving to make some money from the nation's credit crisis by starting a new company that will insure debt issued by state and local governments. To make sure that he does indeed make money from the venture, he's promising not to make the same mistakes that have caused so many problems for long-time insurers like Ambac and MBIA: charging too little and taking on too much risk.

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    Video clip and transcript of Warren Buffett's opening statement before the Senate Finance Committee holding a hearing on estate taxes.

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    During the first stop of his Asian mini-tour, Warren Buffett told reporters that he doubts he'll find a new investment in China right now to replace his recently sold PetroChina stake because stock prices have gone up so dramatically in recent months.

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    Warren Buffett's Berkshire Hathaway cut back on its holdings in two railroads during the second quarter of this year.  Even as Berkshire was increasing its stake in Burlington Northern, it was cutting back on two other railroads: Norfolk Southern and Union Pacific.