BERKSHIRE HATHAWAY INC.
To the Shareholders of Berkshire Hathaway Inc.:
Our gain in net worth during 2007 was $12.3 billion, which increased the per-share book value of both our Class A and Class B stock by 11%. Over the last 43 years (that is, since present management took over) book value has grown from $19 to $78,008, a rate of 21.1% compounded annually.*