Buffett's Berkshire reveals 2 new stock investments

OMAHA (NEBRASKA): Warren Buffett's company is revealing new investments in Chicago Bridge & Iron Co and Starz.

Berkshire Hathaway also reduced its stake in snack food maker Mondelez International Inc and made several other adjustments to its $85 billion US stock portfolio during the first quarter. The changes were disclosed on Wednesday.

At the end of March, Berkshire held 6.5 million shares of engineering and construction firm Chicago Bridge & Iron and 5.6 million shares of movie network Starz. Berkshire cut its Mondelez stake to 7 million shares from 12.8 million at the end of 2012.

Berkshire's investments are closely watched because many people try to copy Buffett's moves. But because many of the firm's latest investments are smaller than $500 million, they are likely the work of Berkshire's two other investment managers.

Berkshire said it has taken a roughly 6.51 million-share stake in CB&I, one of the largest US-listed engineering companies, that was worth about $404.2 million as of March 31. It also boosted its stake in Wells, the fourth-largest US bank, by about 4 percent from year end to 458.2 million shares worth about $16.95 billion.

Earlier this month, Berkshire said it had $95.9 billion of equity securities overall, and Buffett indicated that the bulk of the company's investments will stay in the United States.