Pledges of Warren Buffett to Make Gifts of Berkshire Stock

OMAHA, Neb.--(BUSINESS WIRE)--June 25, 2006--Warren E. Buffett, Chairman and CEO of Berkshire Hathaway Inc. (NYSE:BRK.A) (NYSE:BRK.B), will execute letters on June 26, 2006 that contain irrevocable pledges to make annual gifts of Berkshire Hathaway Inc. Class B Common Stock (the "Pledge Letters") throughout his lifetime to (1) the Bill and Melinda Gates Foundation, (2) the Susan Thompson Buffett Foundation, (3) the Howard G. Buffett Foundation, (4) the Susan A. Buffett Foundation and (5) the NoVo Foundation. An article appearing in the July 10, 2006 edition of Fortune Magazine includes additional information with respect to the Pledge Letters. Copies of the Pledge Letters and a link to the Fortune Magazine Article are being posted on the Internet where they can be accessed at www.berkshirehathaway.com.

Berkshire Hathaway and its subsidiaries engage in diverse business activities including property and casualty insurance and reinsurance, utilities and energy, finance, manufacturing, retailing and services. Common stock of the company is listed on the New York Stock Exchange, trading symbols BRK.A and BRK.B.