Warren Buffett took control of Berkshire Hathaway in 1965, bringing his considerable investing acumen to bear on the small textile business. Berkshire has since become a $780 billion company under his leadership, and its per-share market value has increased nearly 4,400,000%. A substantial portion of that value comes from its $367 billion stock portfolio.

Buffett reportedly manages 90% of those invested assets, according to Barron's, and the largest holdings are mostly or entirely under his control. Meanwhile, co-investment managers Todd Combs and Ted Weschler handle the other 10% of the portfolio.

Buffett and his team have a significant sum of money concentrated in a handful of stocks, including the three detailed below:

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Source Fool.com