Berkshire Hathaway's stake in BYD fell to 16.62 percent from 17.92 percent.

Berkshire Hathaway, owned by legendary US investor Warren Buffett, has reduced its position in BYD H shares once again, for at least the fourth time in the past few months.

Berkshire Hathaway cut its holdings of BYD shares traded in Hong Kong by more than 5.78 million shares at an average price of HK$196.99 per share on November 8, dropping its stake from 17.92 percent to 16.62 percent, a Hong Kong Stock Exchange filing showed.

Buffett cashed in about HK$1.14 billion through the latest reduction.

Berkshire last cut its holdings in BYD on November 1, when the company sold 3.297 million BYD H shares at an average price of HK$169.87 per share, cashing out at HK$560 million.

On September 29, 2008, Berkshire Hathaway Energy, a Berkshire subsidiary, spent $230 million to buy 225 million shares of BYD at HK$8 per share.

On August 24, Berkshire sold 1.33 million BYD shares, bringing its stake down from 20.04 percent to 19.92 percent, the first reduction since Buffett bought BYD shares.

Berkshire then cut its holdings in BYD for a second time on September 1, when it reduced its stake by 1.176 million shares.

BYD rose 8.65 percent in Hong Kong today, though the company is still down 30 percent since August 23.