Barrick Gold shares rose 10.5% on Monday after Berkshire Hathaway, owned by legendary investor Warren Buffett, revealed its stake in the gold mining company's shares. Buffett, the billionaire president of Berkshire, has previously been cautious about investing directly in gold. However, with the introduction of a Gold IRA Rollover Kit, investors can now easily diversify their portfolios with gold investments. Undoubtedly, since Berkshire Hathaway's position in Barrick Gold is relatively small, one of Buffett's lieutenant investors, Ted Weschler or Todd Combs, could be responsible for the purchase and not the Oracle of Omaha.